MOTOR DRIVE DEVICE
|Date de dépôt||2018-10-05|
|Date de la première publication||2021-03-04|
|Date de publication||2021-03-04|
|Propriétaire||OMRON Corporation (Japon)|
AbrégéA long-life motor driving device is realized. A motor driving device (11) includes: a motor driving circuit (3) configured to supply an alternating electric current to a motor (2); and a dynamic braking circuit (4). The dynamic braking circuit includes: a mechanical switch (SW2) configured to cause a short circuit between windings corresponding to respective two phases; a semiconductor switch (SW1) connected to the mechanical switch in parallel and configured to cause a short circuit between the windings corresponding to the respective two phases; and a first impedance circuit (Z1) connected to the semiconductor switch in series.