Patent ID: 9548674
Date: 2017-01-17
CPC Classifications: H02J,H02M

Claim:
1. An electric power receiving device that receives an electric power from a primary coil with which a first alternating voltage is applied and through which a first alternating current flows, the electric power receiving device comprising: a series resonance circuit that comprises a secondary coil electromagnetically-coupled to the primary coil and a capacitor connected to the secondary coil in series and generates a second alternating voltage based upon the first alternating current; and a reducing-voltage generating section that generates a reducing-voltage and applies the reducing voltage to the series resonance circuit, the reducing-voltage being capable of reducing a reactance voltage generated in the series resonance circuit by a second alternating current generated in the series resonance circuit, due to the second alternating voltage, and the reducing-voltage being equal to the second alternating voltage in frequency.