Power transmitter, power receiver and power transmission and reception system

摘要

According to one embodiment, a power transmission and reception system includes a power transmitter and a power receiver. The power transmitter includes: a power transmission module configured to wireless-transmit power to the power receiver; and a first wireless communication module configured to perform wireless communication with the power receiver. The power receiver includes: a power reception module configured to receive the power transmitted from the power transmission module; and a second wireless communication module configured to perform wireless communication with the first wireless communication module using the received power. The second wireless communication module is configured to perform wireless communication while the power reception module is receiving the power.

主权项

1. A power transmission and reception system comprising a power transmitter and a power receiver, wherein:
(i) the power transmitter comprises:
a power transmission module configured to wireless-transmit power to the power receiver; anda first wireless communication module configured to perform wireless communication with the power receiver; (ii) the power receiver comprises:
a power reception module configured to receive the power transmitted from the power transmission module; anda second wireless communication module configured to perform wireless communication with the first wireless communication module using the received power; wherein the second wireless communication module is configured to perform wireless communication while the power reception module is receiving the power; wherein the power reception module comprises:
a coil configured to receive an electric wave configured to transmit the power;a power reception controller configured to convert the electric wave to a current; anda charge keeping module configured to keep charges by the current; wherein the power receiver further comprises:
a charge monitor configured to monitor an amount of charges kept in the charge keeping module; anda controller configured to start the wireless communication by the second wireless communication module when the amount of charges kept in the charge keeping module becomes over a first threshold after power reception is started; and wherein the controller is configured to stop the wireless communication by the second wireless communication module when the amount of charges kept in the charge keeping module becomes below a second threshold.