POWER FEEDING DEVICE, WIRELESS POWER FEEDING SYSTEM USING THE SAME AND WIRELESS POWER FEEDING METHOD

摘要

An object is to provide a power feeding device, a power feeding system, and a power feeding method which are more convenient for a power feeding user at the power receiving end. The power feeding device includes a means of controlling a frequency of a power signal transmitted to a power receiver, based on a proportion of signals, among power signals output to an antenna circuit, that return from the power receiver to the antenna circuit without feeding power to the power receiver.

主权项

1. (canceled)