A power receiving device includes: a power receiving antenna to wirelessly receive AC power from a power transmitting antenna in a power transmitting device; a power receiving circuit to convert the AC power received by the power receiving antenna into DC power and to output the DC power; a charge-discharge control circuit to control charging and discharging of an electrical storage device to be charged by the DC power output from the power receiving circuit; and a switching circuit connected between the power receiving circuit and the charge-discharge control circuit and between the electrical storage device or the other electrical storage device and the charge-discharge control circuit. The charge-discharge control circuit is booted by energy that is stored in the electrical storage device or another electrical storage device. The switching circuit switches between a first state in which power is supplied from the electrical storage device or the other electrical storage device to the charge-discharge control circuit and a second state in which power is supplied from the power receiving circuit to the charge-discharge control circuit.
POWER RECEIVING DEVICE, MOVABLE UNIT, WIRELESS POWER TRANSMISSION SYSTEM, AND MOVABLE UNIT SYSTEM
2022-05-12
Patent
Electronic Resource
English
POWER RECEIVING DEVICE, MOVABLE UNIT, AND WIRELESS POWER TRANSMISSION SYSTEM
European Patent Office | 2022
|POWER TRANSMISSION COIL UNIT, POWER RECEIVING COIL UNIT, AND WIRELESS POWER TRANSMISSION SYSTEM
European Patent Office | 2021
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