Patent ID: 8664803

Claim:
A wireless power receiver which acquires power by a non-contact method from a wireless power feeder, the wireless power receiver comprising: a power receive resonance circuit which includes a power receive coil and a power receive capacitor and acquires power from a power feed coil of the wireless power feeder by means of the power receive coil on the basis of a magnetic field resonance effect between the power feed coil and the power receive coil; a power receive load coil which receives the power fed from the power receive coil by a non-contact method, the power receive load coil being wound around and adjacent to the power receive coil so that at least a part of the power receive coil is positioned inside the power receive load coil; and an impedance converter which is arranged between the power receive load coil and a load and in which a primary impedance, connected to the power receive load coil is higher than a secondary impedance connected to the load.