WIRELESS POWER SUPPLY SYSTEM, POWER TRANSMISSION DEVICE, AND POWER RECEIVING DEVICE

摘要

A wireless power supply system includes a power transmission device capable of transmitting power to a plurality of power receiving devices by a magnetic field resonance method. The power transmission device includes a detection unit configured to detect an amount of charge of each of the plurality of power receiving devices, a determination unit configured to determine, if the amount of charge of a certain power receiving device is not increased even when a predetermined time has elapsed since start of power transmission to the certain power receiving device, whether a cause of failure to increase the amount of charge is the power transmission device or the certain power receiving device, based on the amount of charge of any other power receiving device detected by the detection unit, and a notification unit configured to transmit a notification about the determination result by the determination unit.

主权项

1. A wireless power supply system including a power transmission device for transmitting power to a plurality of power receiving devices by a magnetic field resonance method, the power transmission device comprising:
a detection unit configured to detect an amount of charge of each of the plurality of power receiving devices; a determination unit configured to determine, if the amount of charge of a certain power receiving device is not increased even when a predetermined time has elapsed since start of power transmission to the certain power receiving device, whether a cause of failure to increase the amount of charge is the power transmission device or the certain power receiving device, based on the amount of charge of any other power receiving device detected by the detection unit; and a notification unit configured to transmit a notification about the determination result by the determination unit.