| 摘要 |
<P>PROBLEM TO BE SOLVED: To adjust the amplitude of reception power in wireless power feeding of a magnetic field resonance type. <P>SOLUTION: A wireless power-receiving device receives, by a power-receiving coil, AC power wirelessly transmitted from a power-feeding coil based on a magnetic-field resonance phenomenon between the power-feeding coil and the power-receiving coil. The wireless power-receiving device includes a load circuit and a power control circuit 400. The load circuit includes a load coil that receives AC power from the power-receiving coil by magnetically coupling the power-receiving coil; and a load to which the AC power is supplied from the load coil. The power control circuit 400 includes a measurement section 404 and an adjustment section 406. The measurement section 404 measures reception power of the load. The adjustment section 406 approximates the reception power to the maximum value while changing the impedance of the load circuit. <P>COPYRIGHT: (C)2012,JPO&INPIT |
