Patent ID: 9343225
Filing Date: 2016-05-17
CPC Classification: H01F,H02J

Claim Text:
1. A power receiving device connectable with a first load circuit operating according to AC power from a power transmitting device, the power receiving device comprising: a power receiver to receive the AC power from the power transmitting device via magnetic coupling; an impedance adjuster capable of converting at least one of voltage and current of the AC power received at the power receiver; and a controller to control an increase in output voltage of the power transmitting device, wherein the AC power is supplied to the first load circuit via the impedance adjuster when the first load circuit is connected to the power receiving device, and wherein the controller controls the impedance adjuster such that an input impedance of the impedance adjuster is lower than an input impedance of the first load circuit during at least a part of a time period in which the output voltage of the power transmitting device is increased.