Abstract

An electronic component includes a casing and an electronic element. The casing includes a bottom plate, a backplate, a first protrusion and a second protrusion. The bottom plate has a first surface. The backplate is connected with the bottom plate and perpendicular to the bottom plate. The backplate has a third surface and a fourth surface. The third surface and the fourth surface are opposite to each other. The first protrusion and the second protrusion are extended from the third surface of the backplate toward a direction parallel to the bottom plate, respectively. The electronic element is disposed on the first surface of the bottom plate and adjacent to the third surface of the backplate. The bottom plate, the backplate, the first protrusion and the second protrusion are disposed around the electronic element.

IPC Classes  ?

• H01F 27/26 - Fastening parts of the core together; Fastening or mounting the core on casing or support
• H01F 27/02 - Casings
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support

Abstract

The disclosure provides a method and a system for warming-up an electrolytic capacitor. The method comprises: providing a power factor correction circuit comprising an AC terminal, a DC terminal and the electrolytic capacitor, wherein the DC terminal is connected in parallel to the electrolytic capacitor; determining whether it is necessary to perform a warm-up operation on the electrolytic capacitor; when it is determined to be necessary, generating a ripple current on the electrolytic capacitor by controlling an input current to flow into the AC terminal of the power factor correction circuit; and when the warmed-up state of the power factor correction circuit that is generated based on the ripple current matches a specified warmed-up exit condition, terminating the warm-up operation performed on the electrolytic capacitor.

IPC Classes  ?

• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H01G 2/08 - Cooling arrangements; Heating arrangements; Ventilating arrangements

Abstract

A projection calibration method includes transmitting a calibration command to an edge node by a center node, acquiring a projection image of a test pattern image by the edge node, performing image processing on the acquired projection n image by the edge node based on the calibration command to get a calibration parameter data, transmitting the calibration parameter data to the center node by the edge node, and outputting a calibration result to a projector by the center node based on the calibration parameter data.

IPC Classes  ?

• G06T 7/80 - Analysis of captured images to determine intrinsic or extrinsic camera parameters, i.e. camera calibration
• H04L 9/40 - Network security protocols

Abstract

The disclosure provides a power system comprising: a first converter comprising a first port electrically connected to the first port of a first power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a second converter comprising a first port electrically connected to the second port of the first power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a third converter comprising a first port electrically connected to the first port of a second power device, a second port electrically connected to the third port, and a third port electrically connected to the fourth port; a fourth converter comprising a first port electrically connected to the second port, a second port electrically connected to the third port, and a third port electrically connected to the fourth port.

IPC Classes  ?

• G06F 1/26 - Power supply means, e.g. regulation thereof

Abstract

A diagonal fan is disclosed and includes a frame and an impeller. The frame includes an inlet, an outlet, an accommodation space and a guiding wall. The inlet and the outlet are communicated through the accommodation space. The guiding wall is extended along an axial direction to the accommodation space. The impeller is accommodated within the accommodation space and includes a conical section shell. When the impeller is rotated, an airflow flowing is generated. The outer diameter of the hub of the impeller is expended gradually in a direction from the inlet toward the outlet, so that the flowing direction of the airflow is expended gradually around the peripheral of the impeller. A gap having a spacing distance is substantially maintained to form a backflow channel. A backflow is transported through an intake section, a horizontal section and an exhaust section of the backflow channel, and converged with the airflow.

IPC Classes  ?

• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing
• F04D 17/06 - Helico-centrifugal pumps
• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps

Abstract

A power converter includes a plurality of conversion circuits connected with each other in parallel. Each of the conversion circuits includes a transformer. The transformer of each of the plurality of conversion circuits includes a magnetic core assembly, at least one primary winding, at least one secondary winding and at least one auxiliary winding. Each magnetic core assembly includes a plurality of magnetic legs. The at least one primary winding, the at least one secondary winding and the at least one auxiliary winding are wound on the plurality of magnetic legs. The at least one auxiliary winding of one conversion circuit is serially connected with the at least one auxiliary winding of other conversion circuit to form at least one loop. The present disclosure also provides a magnetic element.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H01F 27/26 - Fastening parts of the core together; Fastening or mounting the core on casing or support
• H01F 27/28 - Coils; Windings; Conductive connections

Abstract

A diagonal fan is disclosed and includes a frame and an impeller. The frame includes an inlet, an outlet, and an accommodation space. The inlet and the outlet are communicated through the accommodation space. The impeller is accommodated within the accommodation space and includes a hub, a cylindrical part, a conical section shell and a plurality of blades, wherein the cylindrical part is configured to accommodate a rotor. The cylindrical part includes a plurality of protrusion portions and a plurality of indentation portions disposed on an inner surface thereof, and the plurality of protrusion portions are abutted against an outer surface of a magnetic shell of the rotor.

IPC Classes  ?

• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing
• F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
• F04D 29/32 - Rotors specially adapted for elastic fluids for axial-flow pumps
• F04D 29/52 - Casings; Connections for working fluid for axial pumps

Abstract

The present disclosure provides a power converter including a transformer, a first current detection circuit and a rectifier circuit. The transformer includes a primary side winding and a secondary side winding coupled to each other. The first current detection circuit is electrically connected in parallel to the secondary side winding and includes a first auxiliary winding, a first switch and a first impedance device electrically connected in series. The first auxiliary winding is coupled to the secondary side winding. The rectifier circuit includes a first bridge arm and a second bridge arm electrically connected in parallel. The first bridge arm includes a second switch and a third switch electrically connected in series, and the second bridge arm includes a fourth switch and a fifth switch electrically connected in series.

IPC Classes  ?

• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 7/04 - Conversion of ac power input into dc power output without possibility of reversal by static converters

Abstract

This disclosure is a stator assembly of a water pump. The stator assembly includes a shell seat and a stator component. The shell seat includes an inner side wall and hooks. The stator component includes a bobbin, a silicon lamination set and a wiring set. The bobbin covers the silicon lamination set and exposes an outer peripheral surface of the silicon lamination set. The wiring set is arranged on the bobbin, and snapping holes are disposed on a bottom side of the bobbin. The inner side wall is attached to the outer peripheral surface, and the snapping holes are engaged with the hooks. Therefore, the stator component may be firmly integrated into the shell seat through simple positioning structures.

IPC Classes  ?

• H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
• H02K 1/16 - Stator cores with slots for windings

Abstract

A modeling device and a modeling method for three-dimension objects are provided. The modeling method includes loading a motion model of a model object, where the motion model indicates a motion level of each of a plurality of model components of the model object; receiving an object to be modeled including a plurality of components; reading a component attribute of each component; adjusting the motion level of each model component based on the component attribute of each component to generate a modeled component including the component attribute; and obtaining a modeled object after setting the motion level of each model component, where the modeled object includes the modeled components respectively corresponding to the model components.

IPC Classes  ?

• G06T 17/00 - 3D modelling for computer graphics

Abstract

A photovoltaic-inverter heat-dissipation assembly is disclosure and includes a front housing-base, a rear cover, a first heat-generating device, a first fan, a second heat-generating device and a second fan. The rear cover and the front housing-base are combined to separately form a first heat-dissipation space and a second heat-dissipation space. The rear cover includes a first air-inlet, a second air-inlet and an air-outlet. The first air-inlet and the second air-inlet are in communication with the air-outlet through the first heat-dissipation space and the second heat-dissipation space, respectively. The first fan generates a first airflow, which enters through the first air-inlet, flows through the first heating-generating device accommodated in the first heat-dissipation space, and flows out through the air-outlet. The second fan generates a second airflow, which enters through the second air-inlet, flows through the second heat-generating device accommodated in the second heat-dissipation space, and flows out through the air-outlet.

IPC Classes  ?

• H02S 40/34 - Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
• H02S 40/32 - Electrical components comprising DC/AC inverter means associated with the PV module itself, e.g. AC modules

Abstract

The application discloses a power supply device and an overcurrent alarm method. The power supply device provides power to a load system and includes: a current sampling module for obtaining a current sampling value; a first comparison module for comparing the current sampling value with an alarm current reference value to obtain a first output value; and a control module for determining whether to send a current alarm signal to the load system based on the first output value, wherein when the current sampling value is greater than or equal to the alarm current reference value, the control module sends the current alarm signal and provides a warning notification to the load system; when the current sampling value is less than the alarm current reference value, the control module does not send the current alarm signal, or the control module sends a current non-alarm signal.

IPC Classes  ?

• H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
• H02H 3/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection - Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned

Abstract

A reliable, potting free, and partial discharge free PCB-based inductor is provided. In one aspect, the PCB-based inductor includes an insulating planar board having a central through hole and conductive layers embedded in the insulating planar board. Each of the conductive layers is patterned to have a spiral shape around the central through hole and arranged in an annulus region having an annular radius. The conductive layers are arranged in a staggered pattern, such that the annular radius of the conductive layers increases from the centermost one of the conductive layers to the outermost ones of the conductive layers.

IPC Classes  ?

• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/29 - Terminals; Tapping arrangements

Abstract

Data backup, restore, and synchronization methods for multiple devices are provided. The data backup method applied for a local device of the multiple devices includes 1) sending a querying packet including a group identifier to at least one of the multiple devices to search for at least one backup provider; 2) receiving at least one response packet including the group identifier to make a backup plan; 3) preparing a data block and setting at a shared memory of at least one backup service provider based on the backup plan to generate a data packet including the group identifier and the data block; and 4) sending the data packet to the at least one backup service provider to back up the data block to the shared memory.

IPC Classes  ?

• G06F 11/14 - Error detection or correction of the data by redundancy in operation, e.g. by using different operation sequences leading to the same result
• G06F 16/27 - Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
• G06F 21/60 - Protecting data

Abstract

A multi-phase coupled inductor includes at least three windings between a first plane and a second plane and a magnetic core that includes a first magnetic core, a second magnetic core and at least three magnetic core pillars, the first and second magnetic cores are respectively located at two ends of the windings, the magnetic core pillars connect the first and second magnetic cores and form at least three magnetic core units together with the first and second magnetic cores. The magnetic core units and the windings are arranged correspondingly on a one-to-one basis, the magnetic core units surround the corresponding windings and extend from the first plane to the second plane in a same direction, and projections of the at least three magnetic core units on the first plane enclose at least three enclosed areas which correspond to the windings on a one-to-one basis.

IPC Classes  ?

• H01F 27/255 - Magnetic cores made from particles
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• H01F 41/06 - Coil winding

Abstract

A fan frame includes a housing, a shaft seat, a curved rib, a plurality of first ribs, and a plurality of second ribs. The shaft seat is disposed at the center of the housing. The curved rib is disposed between the housing and the shaft seat. The first ribs extend through the curved rib and connect the shaft seat to the housing, and the second ribs connect the curved rib to the shaft seat.

IPC Classes  ?

• F04D 29/52 - Casings; Connections for working fluid for axial pumps
• F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids

Abstract

A water-cooling and heat-dissipation system is disclosed and includes a heat exchange device, an electronic device, a plurality of male-and-female connectors and a plurality of leak-liquid guiding structures. The plurality of male-and-female connectors are disposed between the heat exchange device and the electronic device to allow a coolant flowing therebetween. Each leak-liquid guiding structure is correspondingly disposed below each male-and-female connector, and includes an inclined surface. The inclined surface is introduced from a lateral wall of the heat exchange device or a lateral wall of the electronic device, and extended through a connection port of the corresponding male-and-female connector. When the coolant is leaked from one of the connection ports of the plurality of male-and-female connectors, a leakage liquid is formed and flows along the corresponding inclined surface to the lateral wall of the heat exchange device or the lateral wall of the electronic device.

IPC Classes  ?

• F28F 17/00 - Removing ice or water from heat-exchange apparatus
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A charging system includes a power input part, an inverter, a DC bus, at least one charging device, a first bidirectional energy storage module, a second bidirectional energy storage module and an intelligent controller. The charging device includes a DC/DC converter and a charging gun. A first bidirectional DC/DC converter of the first bidirectional energy storage module receives and converts the DC power from the inverter for charging a first battery, or converts a first storage electric energy of the first battery for the charging device. A second bidirectional DC/DC converter of the second bidirectional energy storage module receives and converts the electric energy outputted by the DC/DC converter of the charging device for charging a second battery, or converts a second storage electric energy of the second battery for the charging device. The intelligent controller controls operations of the first bidirectional DC/DC converter and the second bidirectional DC/DC converter.

IPC Classes  ?

• H02J 7/04 - Regulation of the charging current or voltage
• G06Q 30/0283 - Price estimation or determination
• G06Q 50/06 - Electricity, gas or water supply
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A bidirectional power supply includes an alternating current (AC) port as a source in a first mode and as a load in a second mode and a line-frequency rectifier/inverter to function as a rectifier in the first mode and a set of switches to function as an inverter in the second mode. A bidirectional resonant converter is coupled to a direct current (DC) port with primary-side switches and secondary-side switches respectively arranged on a primary and secondary side of a transformer. A controller controls the primary-side switches and the secondary-side switches by controlling switching frequency based on a determined value while setting time delay between control of the primary-side and the secondary-side switches to be a predefined time delay or by controlling the time delay between control of the primary-side and the secondary-side switches based on a determined value while setting the switching frequency to be a predefined switching frequency.

IPC Classes  ?

• H02M 3/24 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 7/06 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode

Abstract

A wireless management system includes a controller and energy storage units. Each of the energy storage units includes an energy storage device and a node substrate. The wireless management system is configured to select a first node substrate from the node substrates based on a signal strength of each of first request signals to join a local network by the controller. The wireless management system is further configured to select a second node substrate from the node substrates based on the signal strength of each of second request signals to join the local network by the first node substrate. The wireless management system is further configured to assign a serial number corresponds to each of the energy storage units based on the local network by the controller.

IPC Classes  ?

• H02J 50/80 - Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
• H04W 24/08 - Testing using real traffic

Abstract

A power converter is provided. The power converter includes first to fourth switches electrically connected in series, a flying capacitor and a controller. Positive and negative terminals of the flying capacitor are electrically connected to the second and third switches respectively. The controller operates the first and fourth switches to perform a first complementary switching with a first dead time, and operates the second and third switches to perform a second complementary switching with a second dead time. The controller determines to regulate the first or second dead time by detecting a capacitor voltage of the flying capacitor, such that the capacitor voltage of the flying capacitor is maintained within a balance voltage range.

IPC Classes  ?

• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 7/483 - Converters with outputs that each can have more than two voltage levels

Abstract

A detection method for ransomware collaborated with a detection system having a semantic extracting module with multiple semantic extractors is disclosed and includes following steps: receiving a first file with a first ID; importing the first file to the semantic extracting module to output a first semantic feature of the first file; receiving a second file with a second ID; importing the second file to the semantic extracting module to output a second semantic feature of the second file; computing a distance between the first semantic feature and the second semantic feature if the second ID matches the first ID; and, issuing an alarm when the distance exceeds a threshold.

IPC Classes  ?

• G06F 21/56 - Computer malware detection or handling, e.g. anti-virus arrangements
• G06F 21/55 - Detecting local intrusion or implementing counter-measures

Abstract

An unmanned aerial vehicle inspection route generating apparatus and method are provided. The apparatus generates a plurality of inspection points corresponding to a target object to be inspected, and each of the inspection points corresponds to a spatial coordinate. The apparatus calculates a plurality of flight segments based on a three-dimensional model corresponding to the target object to be inspected and the spatial coordinates corresponding to the inspection points, and each of the flight segments corresponds to two of the inspection points. The apparatus calculates a risk value corresponding to each of the flight segments. The apparatus generates an inspection route corresponding to the target object to be inspected based on the risk values and the flight segments.

IPC Classes  ?

• G05D 1/229 - Command input data, e.g. waypoints

Abstract

An auxiliary power circuit of a conversion module is used to supply power to a control unit, and an input end of the conversion module includes an even number of energy storage units coupled in series. The auxiliary power circuit includes an even number of primary-side circuits and a secondary-side circuit. Each primary-side circuit includes a first switch unit, a second switch unit, and a resonance tank. The first switch unit is connected to the second switch unit in series, and is correspondingly connected to one of the energy storage units in parallel. The resonance tank is connected to the second switch unit in parallel. The secondary-side circuit is coupled to the resonance tanks of two of the primary-side circuits to acquire power and supply power to the control unit.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

A modular gripper is disclosed and includes a main fixing plate, a driving module, two screw rods, two extension plates, two extension screws and two nuts. The two screw rods are arranged concentrically in the first direction, connected to the driving module, and driven by the driving module to rotate. The two extension plates are detachably docked to two sides of the main fixing plate through connection elements. The two extension screws are connected to the two screw rods, respectively. Threads of the two extension screws are continuously connected with threads of the two screw rods. The two nuts are sleeved on the two screw rods, respectively. When the two screw rods and the two extension screws are driven by the driving module to rotate synchronously, the two nuts are allowed to displace relative to the two screw rods and the two extension screws, to achieve a clamping operation.

IPC Classes  ?

• B25J 15/04 - Gripping heads with provision for the remote detachment or exchange of the head or parts thereof
• B25J 15/02 - Gripping heads servo-actuated

Abstract

A gripper structure is disclosed and includes a screw-rod main body, a first rotatory nut, a second rotatory nut, a first driving module, a second driving module, a first clamping element and a second clamping element. The first rotatory nut and the second rotatory nut are disposed on two sides of the screw-rod main extended along a first direction body, respectively, and bilaterally symmetrical to each other. The first driving module and the second driving module are configured to drive the first rotatory nut and the second rotatory nut to rotate, respectively. The first rotatory nut and the second rotatory nut are allowed to pass through a midline of the screw-rod main body. When the first driving module drives the first rotatory nut or/and the second driving module drives the second rotatory nut, the first clamping element and the second clamping element are relatively displaced in the first direction to achieve a clamping operation.

IPC Classes  ?

• B25J 15/02 - Gripping heads servo-actuated
• B25J 15/04 - Gripping heads with provision for the remote detachment or exchange of the head or parts thereof

Abstract

A transformer module and a power module are provided. The transformer module includes: a magnetic core, a first winding and a second winding. The magnetic core includes at least one magnetic column at least partially covered by a multi-layer carrier including a plurality of horizontal copper foils and connecting copper foils. Horizontal copper foils are located on horizontal wiring layers, and connecting copper foils are disposed to connect horizontal copper foils. First and second windings surround the magnetic column, and the second winding is located outside the first winding. Both the first and second windings are formed by a horizontal copper foil and a connecting copper foil; two ends of the first winding are electrically connected to first and second surface-mounted pins; two ends of the second winding are electrically connected to third and fourth surface-mounted pins; these pins are disposed on at least one surface of the transformer module.

IPC Classes  ?

• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/02 - Casings
• H01F 27/29 - Terminals; Tapping arrangements
• H01F 27/32 - Insulating of coils, windings, or parts thereof
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets

Abstract

A cascaded power conversion system is used for receiving an AC input power having an AC input voltage. The cascaded power conversion system includes N power conversion modules. Each of the N power conversion modules includes an AC/DC conversion unit, a DC bus and a DC/DC conversion unit. In every ¼ period of the AC input voltage, the DC/DC conversion units of the N power conversion modules are operated in a bypass mode, a boost mode and a hold mode, and a total voltage of DC bus voltages of the N power conversion modules are changed in a consecutive manner.

IPC Classes  ?

• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02J 3/46 - Controlling the sharing of output between the generators, converters, or transformers

Abstract

Provided is a power element assembly structure, including a main board, a first heat sink, a second heat sink, an insulating support, a power element, an insulating thermally conductive layer, and a fixture; where a first end of the insulating support is connected to the main board, a second end of the insulating support is connected to a bottom surface of the first heat sink, and there is a distance between the first heat sink and the main board, a top surface of the first heat sink is connected to the second heat sink; and the insulating thermally conductive layer is attached to a lateral surface of the first heat sink, the power element is attached to the insulating thermally conductive layer, and is fixed to the first heat sink by the fixture, and the power element is plugged on the main board.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

A computing device is disclosed to generate a virtual environment including a first virtual displacement sensor and a second virtual displacement sensor, load an object under detection into the virtual environment, make the first virtual displacement sensor send a first distance-measuring signal to the object under detection to compute a first distance between the first virtual displacement sensor and the object under detection, compute a clean distance between the second virtual displacement sensor and the object under detection based on the first distance and a first spacing, make the second virtual displacement sensor send a second distance-measuring signal to the object under detection to compute a second distance, determine that an obstacle exists between the object under detection and the second virtual displacement sensor when the second distance is less than the clean distance, and send a notification message to an electronic device.

IPC Classes  ?

• G06F 30/20 - Design optimisation, verification or simulation
• G01S 7/48 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
• G01S 17/04 - Systems determining the presence of a target
• G01S 17/42 - Simultaneous measurement of distance and other coordinates

Abstract

A manufacturing method of a heat pipe structure is provided. Firstly, a step S1 is performed. An original heat pipe structure is provided. The original heat pipe structure includes an enclosed space in a sealed state and an original wick structure disposed within the enclosed space. Then, a step S2 is performed. Portion of the original heat pipe structure is deformed to form a deformation portion. The deformation portion clamps portion of the original wick structure. The enclosed space is separated into two subspaces. Then, a step S3 is performed. The deformation portion is cut to separate the two subspaces to form two heat pipe structures.

IPC Classes  ?

• F28D 15/04 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes with tubes having a capillary structure
• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes

Abstract

A magnetic device includes a magnetic core assembly, a primary winding, a first secondary winding, at least one second secondary winding and an auxiliary winding. The magnetic core assembly includes a first magnetic leg, a second magnetic leg and a third magnetic leg. The primary winding is wound around the second magnetic leg. The at least one secondary winding is wound around the second magnetic leg or the third magnetic leg. The auxiliary winding is electrically connected with an auxiliary inductor and wound around at least one magnetic leg. The primary winding is electrically connected with a first switch circuit, and the at least one secondary winding is electrically connected with a second switch circuit, wherein when switches of the first switch circuit turn off and switches of the second switch circuit turn on, an superposed AC voltage coupled by the auxiliary winding is applied on the auxiliary inductor.

IPC Classes  ?

• H01F 27/26 - Fastening parts of the core together; Fastening or mounting the core on casing or support
• H01F 27/29 - Terminals; Tapping arrangements
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output

Abstract

The disclosure provides a laser lighting system. The laser lighting system includes a microcontroller, a motor, a fluorescent color wheel and a detection circuit. The motor drives the fluorescent color wheel to rotate. The detection circuit is configured to detect a detected signal from the fluorescent color wheel. When a synchronous signal changes, the microcontroller compares the detected signal to the synchronous signal, in order to control the output current signal for driving the motor, and to decrease the phase variation between the detected signal and the synchronous signal until the phase difference between the detected signal and the synchronous signal maintain at a constant value.

IPC Classes  ?

• G03B 21/20 - Lamp housings
• G03B 21/16 - Cooling; Preventing overheating

Abstract

A coupled inductor including a first coil wound around a first pillar, a second coil wound around a second pillar, a gap magnetic body between the first coil and second coil and comprised of magnetic powders, a first magnetic body on the first coil opposite to the gap magnetic body, and a second magnetic body on the second coil opposite to the gap magnetic body, wherein the first magnetic body, first coil, gap magnetic body, second coil and second magnetic body are stacked sequentially in a first direction, and a ratio of a thickness of the gap magnetic body in the first direction to mean particle size D90 of the magnetic powders in gap magnetic body is between 2-30 or between 0-0.75.

IPC Classes  ?

• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
• H01F 27/255 - Magnetic cores made from particles

Abstract

The present application provides a learning method for plug-in depth including steps of: (a) utilizing a robot arm to take an electronic component with a plurality of pins; (b) utilizing a first visual device to identify a pin distance; (c) utilizing a second visual device to identify a hole distance; (d) inserting the plurality of pins into the corresponding plurality of holes with a predetermined depth according to the pin distance and the hole distance; (e) determining whether the plurality of pins are inserted into the plurality of holes, performing step (f) when the determination result is satisfied, and performing step (g) when the determination result is not satisfied; (f) recording the predetermined depth and performing the step (a) again; (g) calibrating the predetermined depth and performing the step (a) again; and (h) completing the learning of the plug-in depth after the step (f) is performed multiple times successively.

IPC Classes  ?

• H05K 13/04 - Mounting of components
• B25J 9/16 - Programme controls
• H05K 13/02 - Feeding of components
• H05K 13/08 - Monitoring manufacture of assemblages

Abstract

A power-module-heat-dissipation assembly is disclosed and includes plural first power modules, plural second power modules, a cooling-flow-channel inlet, a cooling-flow-channel outlet, a first housing base and a second housing base. The first housing base including a first flow channel and a first heat dissipation surface, and the second housing base including a second flow channel and a second heat dissipation surface are assembled to form a housing extended along a first direction. The first heat dissipation surface and the second heat dissipation surface are disposed on two opposite sides of the housing. The first and second power modules are arranged along the first direction and disposed on the first and second heat dissipation surfaces. The first and second flow channel are in fluid communication between the coolant flow-channel inlet and the cooling-flow-channel outlet, so as to dissipate the heat generated from the first and second power modules quickly and evenly.

IPC Classes  ?

• H05K 7/14 - Mounting supporting structure in casing or on frame or rack
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A dual-inverter assembly is disclosed and includes an elongated base, a first power module, a second power module, an input copper busbar and two output copper busbars. The elongated base includes a first elongated sidewall and a second elongated sidewall opposite to each other and extended along a first direction. The first power module and the second power module are disposed on a first side and a second side of the elongated base along the first direction, respectively. The input copper busbar is spatially corresponding to the first elongated sidewall, and electrically connected to the first power module and the second power module. The two output copper busbars are spatially corresponding to the second elongated sidewall, and electrically connected to the first power module and the second power module, respectively, so as to achieve an optimized configuration.

IPC Classes  ?

• H05K 7/14 - Mounting supporting structure in casing or on frame or rack
• H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A transformer includes a magnetic core and four windings. The magnetic core includes a first flange, a second flange and a middle core part. The first terminal of the first winding, the third terminal of the second winding, the fifth terminal of the third winding and the seventh terminal of the fourth winding are disposed on the first flange. The second terminal of the first winding, the fourth terminal of the second winding, the sixth terminal of the third winding and the eighth terminal of the fourth winding are disposed on the second flange. The first winding and the second winding are twisted with each other to dispose around the middle core part. The third winding and the fourth winding are twisted with each other to dispose around the middle core part, or the third winding and the fourth winding are disposed around the middle core part in parallel.

IPC Classes  ?

• H01F 27/29 - Terminals; Tapping arrangements
• H01F 27/24 - Magnetic cores
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support

Abstract

An inverter assembly is disclosed and includes a base, a contact terminal, an output copper busbar and an elastic component. The output copper busbar is disposed on the base. The output copper busbar includes an output portion configured to electrically connect with the contact terminal. The elastic component is disposed on the base and includes an abutting element, an elastic element and an accommodation seat. The accommodation seat is disposed on the base, the abutting element is connected to the accommodation seat through the elastic element along an axial direction. When the base is docked with the contact terminal, the abutting element of the elastic component abuts against the output portion to attach to the contact terminal, and the contact terminal abuts against the abutting element and the elastic element, so that a restoring force provided by the elastic element keeps the output portion abutting against the contact terminal.

IPC Classes  ?

• H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
• H02M 7/58 - Conversion of dc power input into ac power output without possibility of reversal by dynamic converters using mechanical contact-making and -breaking parts to interrupt a single potential

Abstract

A two-stage converter and a control method thereof are provided. The two-stage converter includes a first stage conversion unit, a capacitor unit and a second stage conversion unit. The first stage conversion unit receives a first power and converts the first power into a second power. The capacitor unit is electrically connected to the first stage conversion unit to receive the second power. The second stage conversion unit is electrically connected to the capacitor unit to receive a power transmitted by the capacitor unit. The first stage conversion unit receives a switch signal which has a switching cycle. In at least one said switching cycle, the two-stage converter performs a first control mode in which an operation state of the second stage conversion unit is adjusted according to an operation state of the first stage conversion unit.

IPC Classes  ?

• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 1/14 - Arrangements for reducing ripples from dc input or output
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 7/217 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A dynamic belt tension inference method includes steps of: (A) performing a training process and (B) performing an inference process. Step (A) includes steps of: using Isolation Forest algorithm to train a tension inference model; using Isolation Forest algorithm under the same hyper-parameter set to perform multiple trainings to generate multiple tension inference models; respectively computing multiple model performances of the multiple tension inference models according to the anomaly score and a pre-recorded data label; computing an averaged model performance; determine whether multiple averaged model performances have been acquired; selecting one of the multiple hyper-parameter sets that corresponds to an optimal averaged model performance as a final hyper-parameter set for training to output an final model. Step (B) includes a step of: inferring processed data by the final model to generate the anomaly score and the dynamic tension corresponding to the anomaly score.

IPC Classes  ?

• F16H 61/00 - Control functions within change-speed- or reversing-gearings for conveying rotary motion
• F16H 7/08 - Means for varying tension of belts, ropes, or chains
• G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators

Abstract

A composite wire is provided. The composite wire includes a single core wire, a plurality of twisted wires, and an insulation layer. In a cross section of the composite wire, the twisted wires surround the single core wire. The twisted wires are configured along the circumferential direction of the single core wire. Each twisted wire comprises a plurality of conductive wires. The insulation layer covers the twisted wires. Each conductive wire has a conductive wire diameter, and the single core wire diameter of the single core wire is greater than the conductive wire diameter.

IPC Classes  ?

• H01B 7/00 - Insulated conductors or cables characterised by their form
• H01F 5/00 - Coils

Abstract

A current detection method adapted to an inverter is provided, which includes: determining that a plurality of lower arms of an inverter have a minimum conduction period when all the lower arms are turned on simultaneously; determining a sampling time point according to the minimum conduction period, wherein a period from a starting point of the minimum conduction period to the sampling time point is defined as a sampling period that is close to the minimum conduction period; simultaneously detecting currents flowing through the lower arms by a plurality of detection resistors to generate a plurality of measurement voltages; and determining the currents of the inverter according to the measurement voltages.

IPC Classes  ?

• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

Abstract

The present disclosure provides a single- and multi-phase DC/DC converter and a control method thereof that can offer a wide range of voltage conversion ratio by substantially reducing the switching frequency range, thereby resulting in performance improvement. Reduction in the switching frequency range is achieved by controlling the output voltage or current with a combination of variable duty ratio, variable frequency, and delay-time control.

IPC Classes  ?

• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 1/08 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A terminal fixing structure applied in a stator includes a wire terminal, a bus bar terminal, a metal ring and a solder joint structure. The wire terminal includes a first end, and the first end is a quadrilateral cylinder. The bus bar terminal includes a second end, and the second end is a quadrangular cylinder, wherein a sidewall of the first end and a sidewall of the second end are immediately-adjacent to each other. The metal ring is arranged around the first end and the second end. The solder joint structure connects an end surface of the first end and an end surface of the second end.

IPC Classes  ?

• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto

Abstract

The disclosure provides a magnetic core structure including at least one magnetic core assembly, wherein the at least one magnetic core assembly includes at least two magnetic blocks spliced with each other, the magnetic core assembly has a cross section along a normal direction of a magnetic flux, and a splicing seam between the at least two magnetic blocks on the cross section is at least partially bent or curved. The magnetic core structure provided in the disclosure reduces eddy-current loss within the magnetic core, and simplifies the assembly process of the magnetic core and the windings.

IPC Classes  ?

• H01F 27/255 - Magnetic cores made from particles

Abstract

A parallel module driver is disclosed and includes a modular backplane structure, a rectifier module and an inverter module. The modular backplane structure includes a plurality of connectors arranged equidistantly in a first direction. The rectifier module includes a rectifier-connection slot connected to one of the plurality of connectors in a second direction. The inverter module includes an inverter-connection slot connected to one of the plurality of connectors in the second direction. The rectifier module and the inverter module are arranged adjacent to each other, the rectifier-connection slot and the inverter-connection slot are connected to two adjacent connectors on the modular backplane structure, respectively. The lateral sides of the rectifier module and the inverter module are attached to each other, and respectively include a guiding element and a guiding groove matched with each other and limiting the rectifier module and the inverter module to slide in the second direction.

IPC Classes  ?

• H05K 7/02 - Arrangements of circuit components or wiring on supporting structure
• H01R 31/06 - Intermediate parts for linking two coupling parts, e.g. adapter
• H05K 5/02 - Casings, cabinets or drawers for electric apparatus - Details

Abstract

The disclosure discloses a power supply system and a power supply method. The power supply system includes a first sub-system including at least two first power supply devices and a first load, the first power supply devices for powering the first load; a second sub-system including a second power supply device and a second load, the second power supply device for powering the second load; and a connection unit configured to control electrical connection or electrical disconnection between the first power supply devices and the second load; wherein power supply availability of the first sub-system is higher than power supply availability of the second sub-system. The disclosure provides more power supply availabilities through few types of power supply structures, which facilitates application scenarios such as data center to flexibly adjust the power supply structures according to business, and save cost.

IPC Classes  ?

• H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
• H02J 3/06 - Controlling transfer of power between connected networks; Controlling sharing of load between connected networks

Abstract

The invention discloses a power conversion circuit and a power supply device. The power conversion circuit is applied to a power supply device, comprising: an AC/DC conversion circuit, wherein a DC side of the AC/DC conversion circuit has a first reference potential point; a first common-mode inductor; a DC/DC conversion circuit including a primary circuit having a second reference potential point, a secondary circuit and a transformer; wherein a first terminal of the first common-mode inductor is connected to the DC side of the AC/DC conversion circuit, and a second terminal of the first common-mode inductor is connected to the primary circuit of the DC/DC conversion circuit; the first reference potential point or the second reference potential point is connected to an electric field shield.

IPC Classes  ?

• H02M 7/04 - Conversion of ac power input into dc power output without possibility of reversal by static converters
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

The present disclosure provides a system of monitoring fuses of a power conversion device. The power conversion device includes a first port, a first fuse and a converter. The first fuse is electrically coupled to the first port and a first safety circuit. The converter includes a first power terminal and a second fuse, and the second fuse is electrically coupled to the first port and the first power terminal. The system includes a first detection circuit and a second detection circuit. The first detection circuit is electrically coupled to the first fuse for detecting a first electrical signal. The second detection circuit is electrically coupled to the second fuse for detecting a second electrical signal.

IPC Classes  ?

• G01R 31/74 - Testing of fuses

Abstract

The battery energy storage system comprising: a bus connection portion comprising a positive bus connection end and a negative bus connection end; a first battery pack comprising a plurality of single batteries connected in series or in parallel; an output capacitor is connected in series to the first battery pack, the output capacitor and the first battery pack are connected between the positive bus connection end and the negative bus connection end; a H-bridge circuit having an output end connected to the output capacitor; a first isolated DC/DC conversion circuit having an input end electrically connected to the first battery pack, an output end electrically connected to an input end of the H-bridge circuit; a first relay electrically connected between the first battery pack and the input end of the first isolated DC/DC conversion circuit, when the first isolated DC/DC conversion circuit has fault, the first relay is disconnected.

IPC Classes  ?

• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
• H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
• H01M 50/51 - Connection only in series
• H01M 50/512 - Connection only in parallel
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A control circuit for a resonant conversion circuit is provided. The resonant conversion circuit includes a switching circuit, a resonant network and a rectifier circuit. Firstly, a starting point of an operating trajectory with a plurality of trajectory segments is determined according to a sampling data sampled at a first switching time point. Then, the starting point of each trajectory segment is determined. The operating mode is determined according to the starting point of the corresponding trajectory segment, and a curve and an end point of the trajectory segment are predicted according to the operating mode. Then, the duration time of each trajectory segment is calculated. The end point of the operating trajectory is determined according to a control instruction. According to the execution time between the starting point and the end point of the operating trajectory, a next switching time point is controlled.

IPC Classes  ?

• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A processing path planning simulation device is provided, which includes a memory and a processor. The processor performs following operations: according to an obstacle model, multiple processing point positions, a mechanical arm model, a processing tool model, a model position relative relationship and a production strategy parameter, performing collision test simulation to generate multiple candidate poses of the mechanical arm model; performing path optimization algorithms on the multiple candidate poses to generate a pose sequence; performing an ant colony algorithm based on the pose sequence and the obstacle model to generate an optimal processing path; and based on the optimal processing path, simulating that an end point of the processing tool model on the mechanical arm model performs a virtual processing operation on the multiple processing point positions sequentially according to the multiple optimal nodes.

IPC Classes  ?

• B25J 9/16 - Programme controls

Abstract

An automatic pick-and-place system is provided, including a feeding device, a visual pattern formed on a fixed part of the feeding device, a manipulator, and a processing unit. An electronic component can be held between the fixed part and a gripping part of the feeding device. A visual module on the manipulator captures an image of the visual pattern, and the processing unit calculates the coordinate value of the electronic component. Thus, the manipulator can move to the target position and pick up the electronic element according to the coordinate value.

IPC Classes  ?

• B65G 47/90 - Devices for picking-up and depositing articles or materials
• B65G 61/00 - Use of pick-up or transfer devices or of manipulators for stacking or de-stacking articles not otherwise provided for

Abstract

A magnetic component includes a core, at least one coil, a first heat dissipating member and a second heat dissipating member. The core includes at least one outer leg and an inner leg. The at least one coil is wound around the inner leg. The first heat dissipating member is disposed on a first side and a top side of the core. The second heat dissipating member is disposed on a second side and the top side of the core. The first heat dissipating member and the second heat dissipating member have a first joint region, a second joint region and a third joint region on the top side. Projections of the first joint region and the second joint region do not overlap with the inner leg. A projection of at least one of the first heat dissipating member and the second heat dissipating member overlaps with the inner leg.

IPC Classes  ?

• H01F 27/08 - Cooling; Ventilating
• H01F 27/26 - Fastening parts of the core together; Fastening or mounting the core on casing or support
• H01F 27/30 - Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support

Abstract

A magnetic component assembly is disclosed and includes a magnetic component, a plastic frame and an insulation tape. The magnetic component includes at least one adjacent side. The plastic frame includes an accommodation space, at least one window and at least one through opening. The magnetic component is accommodated in the accommodation space, the at least one window is spatially corresponding to the at least one adjacent side of the magnetic component, and the at least one through opening is in communication with the accommodation space. The insulation tape is attached to the plastic frame, covers the at least one window, and shields the at least one adjacent side of the magnetic component.

IPC Classes  ?

• H01F 27/22 - Cooling by heat conduction through solid or powdered fillings
• H01F 27/02 - Casings

Abstract

A synchronous rectification control method for a resonant power supply includes steps as follows. First, setting an initial conduction width of a synchronous rectification switch, which is less than a maximum conduction width. Afterward, detecting a voltage waveform across two ends of a body diode of the synchronous rectification switch. Afterward, calculating a resonant frequency according to the voltage waveform. Finally, determining the maximum conduction width of the synchronous rectification switch.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 3/00 - Conversion of dc power input into dc power output

Abstract

A motor driver is provided. The motor driver includes an AC/DC converter, a DC/AC converter, a heat dissipation plate and a busbar module. The AC/DC converter converts an AC input power to a DC power and includes a first thermal module, a second thermal module, a first capacitor pack and a second capacitor pack. The DC/AC converter is connected with the AC/DC converter, converts the DC power to an AC output power, and includes a third thermal module. The heat dissipation plate includes an upper surface and a lower surface. The first thermal module is disposed on the upper surface. The second thermal module and the third thermal module are disposed on two opposite surfaces, respectively. The first capacitor pack is disposed on the upper surface. The second capacitor pack is disposed on the lower surface and corresponding to the first capacitor pack.

IPC Classes  ?

• H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
• H02M 1/32 - Means for protecting converters other than by automatic disconnection
• H02M 7/00 - Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
• H02M 7/5387 - Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration

Abstract

A magnetic component includes a core and at least one coil. The core includes at least one outer leg and an inner leg. The inner leg is separated from an upper inner surface of the core. The inner leg is at least partially divided into a plurality of separated portions along a length direction of the inner leg. The at least one coil is wound around the inner leg.

IPC Classes  ?

• H01F 27/02 - Casings
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/32 - Insulating of coils, windings, or parts thereof

Abstract

The disclosure discloses a DC bias suppression method and a high-frequency power conversion circuit using the same. The high-frequency power conversion circuit includes a high-frequency AC port, a switching circuit, a DC port and a power source connected sequentially, and the DC bias suppression method includes: acquiring voltage information or current information of the DC port at N times, where N≥2; obtaining a corresponding first voltage difference or a corresponding first current difference according to the voltage information or the current information at the N times; regulating a duty ratio of a driving signal according to the first voltage difference or the first current difference; and regulating duty ratios of switching tubes in the switching circuit according to the driving signal.

IPC Classes  ?

• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

The disclosure is directed to a thermosyphon cooling device having a heat-exchange plate and a plurality of roll-bond fins. An evaporation chamber is defined inside the heat-exchange plate. A heat-exchange surface and a top surface are disposed at two sides of the heat-exchange plate. A capillary structure is arranged in the evaporation chamber, and the capillary structure is corresponding to the heat-exchange surface. The roll-bond fins are arranged upright on the top surface, and a plurality of condensing chambers communicating with the evaporation chamber are defined in each of the roll-bond fins, respectively. Each of the condensing chambers communicates with each of the evaporation chambers through at least one overflow port, respectively, and a working fluid is contained in the condensing chambers. Each of the condensing chambers is extended across the at least one overflow port in a direction perpendicular to a normal line of the heat-exchange plate.

IPC Classes  ?

• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes

Abstract

A centrifugal fan module is provided. The centrifugal fan module includes a housing, a blade unit, a heat sink and a vapor chamber. The housing includes a bottom cover, a sidewall, a top cover and an outlet structure, wherein the bottom cover is connected to the bottom of the sidewall, the top cover is connected to the top of the sidewall, and the outlet structure is connected to the top cover and the sidewall. The blade unit is disposed in the housing, wherein the blade unit is located between the bottom cover and the top cover. The heat sink is disposed on the vapor chamber, the heat sink is located between the vapor chamber and the top cover, and the heat sink is located between the outlet structure and the blade unit.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

This disclosure is related to an air conditioning and ventilating device. An air conditioning unit, a first ventilation fan set, an inner air-conditioning fan and an outer air-conditioning fan are disposed in a cabinet. The cabinet includes a cabinet body and a partition. The cabinet body is separated into an inner chamber and an outer chamber. The cabinet body includes an inner ventilation inlet, an inner air-conditioning inlet, an inner air-conditioning outlet and an inner ventilation outlet communicating with the inner chamber. The cabinet body includes an outer air outlet and an outer air-conditioning inlet communicating with the outer chamber. The first ventilation fan set communicates with the inner ventilation inlet and the outer air outlet. The inner air-conditioning fan communicates with the inner air-conditioning inlet and the inner air-conditioning outlet. The outer air-conditioning fan communicates with the outer air-conditioning inlet and the outer air outlet.

IPC Classes  ?

• F24F 13/20 - Casings or covers

Abstract

An inverter includes an inverter case, a plurality of power modules and a plurality of cooling fins. The inverter case includes an annular portion, a supporting portion and a cooling liquid flow channel. The cooling liquid flow channel is a sealed channel located in the annular portion and the supporting portion, and a cooling liquid inlet and an inverter case cooling liquid flow channel outlet are formed on the annular portion at two ends of the cooling liquid flow channel. The power module is arranged on the supporting portion, and the cooling fins are arranged on the cooling liquid flow channel, the fin parts of the cooling fins are respectively extended and arranged inside the cooling liquid flow channel, and the contact parts of the cooling fins are respectively extended to contact heat transfer parts of corresponding power modules.

IPC Classes  ?

• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 5/20 - Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
• H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator

Abstract

An electric motor includes a motor main body and an inverter. The inverter is axially stacked on one end of the motor main body, and the inverter includes a gate driver, a control circuit, a capacitor module, a DC bus bar, a plurality of power modules and a plurality of AC bus bars. The power module includes a plurality of AC output terminals, a plurality of DC input terminals and a plurality of signal terminals, and the AC bus bars are respectively connected to corresponding AC output terminals and extend downward to a motor coil of the motor main body. The power modules and the corresponding DC input terminals are annularly arranged around the capacitor module, the DC bus bar is extended and electrically connected to the corresponding DC input terminals and the capacitor module.

IPC Classes  ?

• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 3/50 - Fastening of winding heads, equalising connectors, or connections thereto
• H02K 11/01 - Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields

Abstract

A wavelength conversion component includes a substrate, a reflection layer, and a phosphor layer. The reflection layer is disposed on the substrate and extends along a first direction. The reflection layer has a top surface that is away from the substrate. The top surface has a height variation on a second direction that is perpendicular to the first direction along the first direction. The phosphor layer is disposed on the reflection layer. The phosphor layer has a thickness variation on the second direction along the first direction. A ratio of the height of the top surface and the thickness of the phosphor layer increases and decreases reciprocally along the first direction.

IPC Classes  ?

• G03B 21/20 - Lamp housings

Abstract

A detecting system for an unauthorized device having a movable locator is disclosed. The movable locator includes a location positioning unit, a signal sniffing unit, a signal collecting unit, and a device positioning unit. The location positioning unit detects a locator position of the movable locator. The signal sniffing unit detects Wi-Fi signal of an unauthorized device and generates a sensing report message. The signal collecting unit adds multiple sensing report messages to a sensing report record collection. The device positioning unit organizes multiple positioning combinations based on the content of the sensing report record collection, generates multiple positioning results respectively based on the multiple positioning combinations, and performs a weighting process to the multiple positioning results to generate a final positioning result of the unauthorized device.

IPC Classes  ?

• H04W 12/121 - Wireless intrusion detection systems [WIDS]; Wireless intrusion prevention systems [WIPS]
• G01S 5/02 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
• H04W 12/63 - Location-dependent; Proximity-dependent

Abstract

A connector is disclosed and includes a main body, a circuit board and a signal connection socket. The main body includes an input side, an output side, power inputs, signal inputs, power outputs and signal outputs. The input side is opposite to the output side, the power inputs and the signal inputs are arranged on the input side respectively, the power outputs are arranged on the output side, the power outputs are electrically connected to the power inputs, and the signal outputs are disposed on a bottom side and electrically connected to the signal inputs. The bottom side is connected between the input side and the output side. The circuit board includes an upper surface, and the bottom side is attached to the upper surface. The signal connection socket is disposed on the upper surface and electrically connected to the signal outputs through the circuit board.

IPC Classes  ?

• H01R 27/02 - Coupling parts adapted for co-operation with two or more dissimilar counterparts for simultaneous co-operation with two or more counterparts
• H01R 12/58 - Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes
• H01R 12/70 - Coupling devices
• H01R 12/71 - Coupling devices for rigid printing circuits or like structures
• H01R 13/11 - Resilient sockets

Abstract

A full-bridge series resonant converter includes a full-bridge switch circuit, a transformer, a resonant tank, a sensing circuit, and a processing circuit. The full-bridge switch circuit includes a first switch leg and a second switch leg having a second lower switch. The resonant tank includes a resonant inductor, a magnetizing inductor, and a resonant capacitor. The sensing circuit is coupled between the resonant capacitor and a ground point of a primary side of the transformer for sensing a node voltage between the resonant capacitor and the ground point as a sensing voltage. The processing circuit counts a turned-on time of the second lower switch as a first half-cycle time based on the sensing voltage, and duplicates the first half-cycle time as a second half-cycle time for controlling the full-bridge switch circuit.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 3/00 - Conversion of dc power input into dc power output

Abstract

A vapor chamber is provided. The vapor chamber is adapted to be thermally connected to an electronic element. The vapor chamber includes a first member and a second member. The first member has a first heat transfer coefficient. The first member is connected to the electronic element. The second member has a second heat transfer coefficient. The second member is combined with the first member. The first member is located between the second member and the electronic element. The first heat transfer coefficient is greater than the second heat transfer coefficient.

IPC Classes  ?

• F28D 15/04 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes with tubes having a capillary structure
• F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
• F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
• H01L 23/427 - Cooling by change of state, e.g. use of heat pipes

Goods & Services

All-in-one energy storage system comprised of electric power converters, power inverters, transformers, electricity rectifier, battery chargers, electric batteries, power distribution consoles, power conditioning units, liquid-cooling devices, network communication gateway and routers, data processing devices, electronic controllers for afore-mentioned energy storage system and devices, enclosures containing afore-mentioned devices; recorded or downloadable computer programs for operating, controlling, monitoring the energy storage systems; computer software for battery and electricity management; power converters; current rectifier; electricity transformers; chargers for electric accumulators; electric batteries; electric regulating apparatus; electric installations for the remote control of industrial operations; uninterruptible power supply

Goods & Services

All-in-one energy storage system comprised of electric power converters, power inverters, transformers, electricity rectifier, battery chargers, electric batteries, power distribution consoles, power conditioning units, liquid-cooling devices, network communication gateway and routers, data processing devices, electronic controllers for afore-mentioned energy storage system and devices, enclosures containing afore-mentioned devices; recorded or downloadable computer programs for operating, controlling, monitoring the energy storage systems; computer software for battery and electricity management; power converters; current rectifier; electricity transformers; chargers for electric accumulators; electric batteries; electric regulating apparatus: electric installations for the remote control of industrial operations; uninterruptible power supply.

Abstract

A machine learning optimization circuit and a method thereof are provided. The method includes steps of: generating a local feature matrix from an extraction range in a feature tensor matrix, and the local feature matrix includes feature values of X columns, Y rows, and Z channels; partitioning W sub-feature matrices from the local feature matrix, and each of the W sub-feature matrices includes X×Y×Z/W feature values; simultaneously performing parallel dot product operations on the W sub-feature matrices by W×K parallel operation modules to generate W×K temporary feature matrices; and integrating the W×K temporary feature matrices into a local feature output matrix corresponding to the local feature matrix, and the local feature output matrix includes feature values of X columns, Y rows, and Z channels.

IPC Classes  ?

• G06F 7/544 - Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using unspecified devices for evaluating functions by calculation
• G06F 7/32 - Merging, i.e. combining data contained in ordered sequence on at least two record carriers to produce a single carrier or set of carriers having all the original data in the ordered sequence
• G06F 7/53 - Multiplying only in parallel-parallel fashion, i.e. both operands being entered in parallel

Abstract

The application provides an interaction system between an electric vehicle and a power grid, including the electric vehicle including: a battery, and an on board charger including a bidirectional power conversion circuit connected to the battery and an on board charger controller; an electric vehicle supply equipment including: a charge and discharge connection device including a first contactor connected between the power grid and the bidirectional power conversion circuit; and an interaction communication system including: an electric vehicle communication controller, a supply equipment communication controller, and the on board charger controller controlling the bidirectional power conversion circuit; wherein, the supply equipment communication controller indirectly communicates with the on board charger controller via the electric vehicle communication controller through a first communication channel, and the supply equipment communication controller further directly communicates with the on board charger through a second communication channel.

IPC Classes  ?

• H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
• B60L 53/16 - Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
• B60L 53/62 - Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
• B60L 53/63 - Monitoring or controlling charging stations in response to network capacity
• B60L 53/66 - Data transfer between charging stations and vehicles
• B60L 55/00 - Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

A motor is provided and driven by two phase. The first and second control signals have a phase difference of 90 degrees and are configured to control the first and second driving units, respectively, and the first and second control signals drive the first and second coil sets, respectively. Each of the first and second poles of the permanent magnet occupies a mechanical angle of 360/2n degrees of the permanent magnet, respectively, and n is 1 or 3. The four sets of the coils of the stator are equally located on the stator, each set of the coil occupies a mechanical angle of 360/2m degrees of the stator, any two sets of the coils adjacent to each other are separated by a mechanical angle of 90−(360/2m) degrees, and m is 3 or 2, wherein m corresponds to 2 when n is 1, m corresponds to 3 when n is 3.

IPC Classes  ?

• H02K 1/2746 - Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets arranged with the same polarity, e.g. consequent pole type
• H02K 11/215 - Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
• H02K 11/33 - Drive circuits, e.g. power electronics
• H02K 29/03 - Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with a magnetic circuit specially adapted for avoiding torque ripples or self-starting problems

Abstract

A battery module includes battery cells, a housing and a temperature-sensing line. The housing includes a base and a cover. A hollow portion is defined when the base is combined with the cover. The battery cells are fixed by the base and the cover, and a part of the outer periphery of each of the plurality of battery cells is exposed from the hollow portion. The temperature-sensing line includes two conductive wires and an insulating layer disposed between the conductive wires. The temperature-sensing line contacts the outer periphery of each of the battery cells exposed from the hollow portion. When the temperature of any battery cell is increased to a predetermined temperature and heat is transmitted to the temperature-sensing line, the insulating layer is melted at the predetermined temperature to make the conductive wires conduct with each other and generate a warning signal.

IPC Classes  ?

• G01K 11/06 - Measuring temperature based on physical or chemical changes not covered by group , , , or using melting, freezing, or softening
• G01K 1/024 - Means for indicating or recording specially adapted for thermometers for remote indication
• H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
• H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
• H01M 50/262 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
• H01M 50/271 - Lids or covers for the racks or secondary casings
• H01M 50/507 - Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules

Abstract

A resonant converter includes a first conversion circuit, a resonant transformer circuit, a second conversion circuit and a switching circuit. The resonant transformer circuit is coupled to multiple first bridge arm units of the first conversion circuit, and is configured to convert a first voltage into a second voltage. The second conversion circuit includes multiple second bridge arm units and multiple multi-level switching elements. The switching circuit is coupled to the second conversion circuit to selectively change connection positions of the second bridge arm units, so that the second conversion circuit converts the second voltage into a first DC (direct current) power by the second bridge arm units instead of by the multi-level switching elements, or the second conversion circuit converts the second voltage into a second DC (direct current) power by the second bridge arm units and multi-level switching elements.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 3/00 - Conversion of dc power input into dc power output

Abstract

A moving object detecting apparatus includes a display panel and a processor. The display panel is configured to display a plurality of pixels. The processor is configured to detect the pixels of a detected area to generate a first color value and a second color value corresponding to the detected area, and the first color value corresponds to a first time point and the second color value corresponds to a second time point. The processor is further configured to compare the first color value with the second color value to generate a color boundary variation value corresponding to the detected area. The processor is further configured to determine whether a moving object appears in the detected area based on the color boundary variation value.

IPC Classes  ?

• G09G 3/20 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
• G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

Abstract

A flying capacitor converter with zero-zero switching includes an input inductor, a fast-switching switch leg, a slow-switching switch leg, at least one flying capacitor, a resonant tank, and an output capacitor. The fast-switching switch leg included an upper leg having a plurality of upper switches and a lower leg having a plurality of lower switches. The slow-switching switch leg includes a slow-switching upper switch and a slow-switching lower switch, and the slow-switching upper switch and the slow-switching lower switch are coupled at a second middle node. The at least one flying capacitor is correspondingly coupled between the upper node and the lower node. The resonant tank includes a resonant inductor and a resonant capacitor, and the resonant inductor and the resonant capacitor are coupled in series between the first middle node and the second middle node.

IPC Classes  ?

• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion
• H02M 3/10 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
• H02M 7/12 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

A Totem-pole power factor corrector receives an input power source and convert the input power source into an output power source. The Totem-pole power factor corrector includes an input inductor, a fast-switching switch leg, a slow-switching switch leg, a resonant tank, and an output capacitor. The fast-switching switch leg includes a fast-switching upper switch and a fast-switching lower switch, and the fast-switching upper switch and the fast-switching lower switch are commonly coupled at a first middle node. The slow-switching switch leg is coupled in parallel to the fast-switching switch leg, and the slow-switching switch leg includes a slow-switching upper and a slow-switching lower switch. The resonant tank includes a resonant inductor and at least one resonant capacitor. A first end of the resonant inductor is coupled to the first middle node, and a second end of the resonant inductor is coupled to the at least one capacitor.

IPC Classes  ?

• H02M 1/42 - Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

The present disclosure provides a manufacturing method of a magnetic element, comprising: forming an insulation layer on an outer side of at least one section of a magnetic column of a magnetic core; forming a metal wiring layer on an outer side of the insulation layer through a metallization process; and dividing at least part of the metal wiring layer into a multi-turn metal winding through a mechanically dividing process.

IPC Classes  ?

• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/24 - Magnetic cores
• H01F 27/32 - Insulating of coils, windings, or parts thereof
• H01F 41/02 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets
• H01F 41/04 - Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils or magnets for manufacturing coils
• H01F 41/12 - Insulating of windings

Abstract

An antenna structure, which comprises a substrate, a ground plane and an antenna element. The substrate comprises a first surface and a second surface opposite to the first surface. The ground plane comprises a ground branch. The antenna element comprises a feed-in body, a radiating body and a short circuit part. The feed-in body is configured for receiving a feed-in signal, wherein projection of a part of the feed-in body to the first surface overlaps with the ground plane. The radiating body comprises a first radiating part and a second radiating part connected to the first radiating part. The short circuit part is connected to the second radiating part, and configured for connecting the ground plane through a via hole.

IPC Classes  ?

• H01Q 1/36 - Structural form of radiating elements, e.g. cone, spiral, umbrella
• H01Q 1/48 - Earthing means; Earth screens; Counterpoises
• H01Q 23/00 - Antennas with active circuits or circuit elements integrated within them or attached to them

Abstract

A three-phase AC-DC converter is provided that can offer a low total harmonic distortion (THD) of input current and good power factor with the capability of soft-switching of the active switches. In one aspect, a phase shift is introduced to the gate signal of one of the primary side active switches of the three-phase AC-DC converter and the gate signal of a corresponding one of the secondary side active switches of the three-phase AC-DC converter.

IPC Classes  ?

• H02M 7/219 - Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a bridge configuration
• H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters

Abstract

A hybrid power conversion circuit includes a high-side switch, a low-side switch, a transformer, a resonance tank, a first switch, a second switch, a first synchronous rectification switch, a second synchronous rectification switch, and a third switch. The resonance tank has an external inductor, an external capacitance, and an internal inductor. The first switch is connected to the external inductor. The second switch and a first capacitance form a series-connected path, and is connected to the external capacitance. The first and second synchronous rectification switches are respectively coupled to a first winding and a second winding. The third switch is connected to the second synchronous rectification switch. When an output voltage is less than a voltage interval, the hybrid power conversion circuit operates in a hybrid flyback conversion mode, and otherwise the hybrid power conversion circuit operates in a resonance conversion mode.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
• H02M 1/00 - APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF - Details of apparatus for conversion

Abstract

A guiding grid is disclosed and includes plural circumferential elements and plural radial elements. The circumferential elements are disposed concentrically relative to a central axis, spaced apart from each other in a radial direction, and form different heights relative to a bottom surface. One of the circumferential elements forms a top height relative to the bottom surface, so that the circumferential elements are divided into an outer-ring region and a central region in the radial direction. The circumferential elements located in the central region are increased in height relative to the bottom surface along the radial direction. The circumferential element located in the outer ring region are reduced in height relative to the bottom surface along the radial direction. The radial elements are connected between each of two adjacent circumferential elements. At least one of the radial elements is misaligned and discontinuous in the radial direction.

IPC Classes  ?

• F04D 29/70 - Suction grids; Strainers; Dust separation; Cleaning
• F04D 19/00 - Axial-flow pumps specially adapted for elastic fluids
• F04D 29/66 - Combating cavitation, whirls, noise, vibration, or the like; Balancing

Abstract

An insulation resistance detection circuit is coupled to a positive end and a negative end of a DC power source, and is used to detect a positive insulation resistance between the positive end and a ground point and detect a negative insulation resistance between the negative end and the ground point. A detection unit sets a first estimated resistance and a second estimated resistance, and acquires a first voltage based on turning on the switch and acquires a second voltage based on turning off the switch. The detection unit calculates a third voltage and a fourth voltage according to the first estimated resistance and the second estimated resistance so as to detect the positive insulation resistance and the negative insulation resistance when the third voltage is equal to the first voltage and the fourth voltage is equal to the second voltage.

IPC Classes  ?

• G01R 31/14 - Circuits therefor

Abstract

A flyback power converter includes a transformer, a voltage clamping circuit, a main switch element and a control circuit. The voltage clamping circuit includes a first capacitor and a clamping switch element. The first capacitor is electrically connected with a primary winding of the transformer. The clamping switch element is electrically connected between the capacitor and the primary winding. The control circuit detects a capacitor voltage of the first capacitor and a current flowing through the clamping switch element. If the capacitor voltage is greater than a reference voltage, the clamping switch element is turned on. If the capacitor voltage is not greater than the reference voltage and the current flowing through the clamping switch element is lower than a reference current value, the clamping switch element is turned off.

IPC Classes  ?

• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A measurement method for measuring a position and a tilt angle of a target object includes the following steps. A pixel deviation between a first pixel and a second pixel of the target object is calculated. The pixel deviation is substituted into a curve of curve of tilt angle versus pixel deviation to obtain the tilt angle of the target object. A first target curve and a second target curve are selected according to the first pixel, the second pixel and the tilt angle. A zero-tilt angle is substituted into the first target curve and the second target curve, respectively, to obtain a pixel at the zero-tilt angle. The pixel at the zero-tilt angle is substituted into a position curve to obtain the position of the target object.

IPC Classes  ?

• G01S 17/06 - Systems determining position data of a target
• G01S 7/481 - Constructional features, e.g. arrangements of optical elements
• G01S 7/497 - Means for monitoring or calibrating

Abstract

An electronic device includes: a system board; a load, located on the first side of the system board and including a power supply region, the power supply region includes load pins arranged in a plurality of rows and in a plurality of columns; and at least one column of output capacitors, located on the second side of the system board along a third direction; at least one row of the load pins is a first arrangement row, the first arrangement row includes a plurality of load pin groups arranged sequentially along the second direction, each of the load pin groups includes at least two load pins of a same polarity; and two ends of a vertical projection of each column of the output capacitors on the power supply region are located at two sides of a centerline, in the third direction, of at least one first position pin.

IPC Classes  ?

• H05K 1/02 - Printed circuits - Details
• H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components

Abstract

This disclosure relates to a combination structure of an output line and a terminal. An output line includes an insulation sleeve and a copper wire. A conducting terminal includes a riveting ring, a conducting ring and a soldering segment connected to one another. The riveting ring is fixed on the insulation sleeve. The conducting ring covers the copper wire. The soldering segment is bent and extended with an included angle with respect to an extending direction of the output line. The output line and the conducting terminal pass through a reflow oven to make the conducting ring and the copper wire be tinned and connected. The insulation seat includes a base and a terminal slot. The soldering segment is embedded in the terminal slot. The circuit board and the conducting terminal pass through the reflow oven to make the soldering segment be tinned and connected to the circuit board.

IPC Classes  ?

• H01R 12/53 - Fixed connections for rigid printed circuits or like structures connecting to cables except for flat or ribbon cables
• H01R 4/18 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
• H01R 4/70 - Insulation of connections
• H01R 12/58 - Fixed connections for rigid printed circuits or like structures characterised by the terminals terminals for insertion into holes

Abstract

A detection method for an air-conditioning system includes detecting whether the input power of the compressor of the air-conditioning system is lower than the power threshold. The method includes obtaining the evaporation saturation temperature of the evaporator of the air-conditioning system and obtaining the condensation saturation temperature of the condenser of the air-conditioning system when the input power is lower than the power threshold. When detecting that the evaporation saturation temperature is greater than the condensation saturation temperature, the method includes determining that an abnormal phase change is occurring and operating the compressor in the full-speed mode. The method includes detecting whether the compressor maintains in the full-speed mode for reaching a first predetermined time when the compressor operates in the full-speed mode, and determining that the refrigerant of the air-conditioning system is leaking if the compressor maintains in the full-speed mode for reaching the first predetermined time.

IPC Classes  ?

• F24F 11/36 - Responding to malfunctions or emergencies to leakage of heat-exchange fluid

Abstract

An immersion cooling system is provided and includes a storage tank, an adapter frame, and an electronic device. The storage tank includes an accommodating tank and a sealing cover for sealing the opening of the accommodating tank. The adapter frame includes a first wire channel attached to the side of the adapter frame, and is disposed in the accommodating tank in a vertical direction. The electronic device includes at least one power wire, and is inserted into the adapter frame along the above direction. The side of the electronic device is attached to the side of the first wire channel. A second wire channel is formed between the bottoms of the electronic device and the adapter frame, and the first and second wire channels communicate with each other. The power wire is connected to the circuit of the external power apparatus along the first and second wire channels.

IPC Classes  ?

• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

A charging system includes a power input part, an inverter, a DC bus, at least one charging device, a first bidirectional energy storage module, a second bidirectional energy storage module and an intelligent controller. The charging device includes a DC/DC converter and a charging gun. A first bidirectional DC/DC converter of the first bidirectional energy storage module receives and converts the DC power from the inverter for charging a first battery, or converts a first storage electric energy of the first battery for the charging device. A second bidirectional DC/DC converter of the second bidirectional energy storage module receives and converts the electric energy outputted by the DC/DC converter of the charging device for charging a second battery, or converts a second storage electric energy of the second battery for the charging device. The intelligent controller controls operations of the first bidirectional DC/DC converter and the second bidirectional DC/DC converter.

IPC Classes  ?

• H02J 7/04 - Regulation of the charging current or voltage
• G06Q 30/0283 - Price estimation or determination
• G06Q 50/06 - Electricity, gas or water supply
• H02J 3/00 - Circuit arrangements for ac mains or ac distribution networks
• H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

Abstract

An outdoor cabinet is disclosed and includes a cabinet, an active damper and a passive damper. The cabinet includes an air inlet, an air outlet and an accommodation space. The accommodation space is in communication with an outdoor environment through the air inlet and the air outlet, respectively. The active damper is arranged adjacent to the air inlet. The passive damper includes an exhaust fan and a damper blade. The exhaust fan is arranged adjacent to the air outlet. The damper blade is arranged between the air outlet and the outdoor environment. When the exhaust fan is in operation, the damper blade allows a heat-dissipation airflow to be discharged from the air outlet to the outdoor environment. When a wind pressure of the outdoor environment is greater than a wind pressure of the accommodation space, the damper blade closes the air outlet to protect electronic devices installed in the cabinet.

IPC Classes  ?

• F24F 1/48 - Component arrangements in separate outdoor units characterised by airflow, e.g. inlet or outlet airflow
• F24F 1/56 - Casing or covers of separate outdoor units, e.g. fan guards

Abstract

A method to form a plurality of inductors in a single process by placing multiple coils on a first magnetic sheet, and then stacking magnetic layers on the first magnetic sheet to encapsulate the coils so as to from a large magnetic body, and then cutting the large magnetic body into multiple inductors, wherein a terminal part of the coil disposed on the bottom surface of the magnetic body of the inductor is extended away from the axis of the coil and is entirely located at a same side of the axis of the coil.

IPC Classes  ?

• H01F 27/32 - Insulating of coils, windings, or parts thereof
• H01F 27/02 - Casings
• H01F 27/22 - Cooling by heat conduction through solid or powdered fillings
• H01F 27/24 - Magnetic cores
• H01F 27/28 - Coils; Windings; Conductive connections
• H01F 27/29 - Terminals; Tapping arrangements
• H05K 1/18 - Printed circuits structurally associated with non-printed electric components
• H01L 25/07 - Assemblies consisting of a plurality of individual semiconductor or other solid state devices all the devices being of a type provided for in the same subgroup of groups , or in a single subclass of , , e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group

Abstract

A resonant circuit and a control method thereof, the resonant circuit including a plurality of resonant modules connected in parallel. The control method includes: obtaining an output current signal and an output voltage signal according to an output current and an output voltage sampled of the respective resonant module; correspondingly generating, via the respective resonant module, a first control voltage signal through a voltage loop according to a current difference between the output current and an average output current and the output voltage signal, and correspondingly generating a second control voltage signal through a current loop according to the output current signal; selecting to use one of the first or second control voltage signal according to whether the output current reaches the current limit value for controlling a switch frequency of the corresponding resonant module, thereby achieving current-sharing or current-limiting control of the respective resonant module.

IPC Classes  ?

• H02M 3/00 - Conversion of dc power input into dc power output
• H02M 3/335 - Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only

Abstract

A planar transformer includes: a first primary winding layer; a second primary winding layer disposed adjacent to the first primary winding layer; a shielding layer disposed adjacent to the first primary winding layer; a first secondary winding layer disposed adjacent to the shielding layer; a second secondary winding layer disposed adjacent to the first secondary winding layer. The first primary winding layer and the second primary winding layer are located at one side of the shielding layer. The first secondary winding layer and the second secondary winding layer are located at another side of the shielding layer.

IPC Classes  ?

• H01F 27/28 - Coils; Windings; Conductive connections