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
12.05.2022
Patent
Elektronische Ressource
Englisch
POWER RECEIVING DEVICE, MOVABLE UNIT, AND WIRELESS POWER TRANSMISSION SYSTEM
Europäisches Patentamt | 2022
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