Power reception control device, power reception device, power transmission and reception system, and electronic device

摘要

Provided is a power reception device in which power consumption at the time of wireless power supply is reduced. A power reception device is provided with a power reception control device capable of temporarily stopping supply of power supply voltage to a communication control unit for controlling communication in a break period of communication intermittently performed between a power transmission device and a power reception device. In the structure, a clock signal is generated on the basis of a power receiving signal transmitted from the power transmission device, and a period of communication intermittently performed can be measured using the clock signal. Further, a structure may be employed in which supply of power supply voltage to the communication unit in the power reception control device can be stopped in the break period of the communication.

主权项

1. A power reception device comprising:
a clock generation unit configured to generate a clock signal from a power receiving signal supplied from a power receiving unit; a counter unit configured to measure a communication period in accordance with the clock signal; a communication control unit configured to detect a receiving signal and generate a transmission signal; and a power source control unit configured to control supply of power supply voltage to the clock generation unit, the counter unit, and the communication control unit, wherein the power source control unit comprises a power controller and a switch being electrically connected to the communication control unit, wherein the power source control unit stops the supply of the power supply voltage to the communication control unit by turning off the switch in accordance with a signal supplied from the counter unit.