NONCONTACT POWER SUPPLY APPARATUS

Registre Brevet USPTO
Numéro d'application 16961281
Statut En instance
Date de dépôt 2019-01-11
Date de la première publication 2021-03-04
Date de publication 2021-03-04
Propriétaire OMRON Corporation (Japon)
Inventeur(s)
  • Nomura, Atsushi
  • Nakao, Goro
  • Kawai, Yusuke
  • Zaitsu, Toshiyuki

Abrégé

A power receiver device a noncontact power supply apparatus short-circuits a resonance suppressing coil provided so as to be electromagnetically coupled to a receiver coil and notifies a power transmitter device of an output voltage abnormality when a measured value of output voltage becomes equal to or greater than an upper limit threshold, the measured value of output voltage being obtained by rectifying power received via a resonance circuit including a receiver coil configured to receive power from a transmitter coil of the power transmitter device and a resonance capacitor connected in parallel with the receiver coil. Upon receipt of the notification of the output voltage abnormality, the power transmitter device changes at least one of a voltage and switching frequency of AC power applied to the transmitter coil.

Classes IPC  ?

  • H02J 50/12 - Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
  • 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