| 摘要 |
PROBLEM TO BE SOLVED: To provide the non-contact power supply device which supplies power efficiently even in such a use that the mutual inductance of a power transformer changes. SOLUTION: In the frequency controller 31 of a controller 30, the resonance frequency of a current according to variation in the mutual inductance M between the transmitting coil 14 and the receiving coil 21 of the power transformer Tf is searched, and frequency control is performed so that the frequency of a voltage command for controlling the output voltage of a voltage type inverter unit 13 includes a value according to the frequency of the current. COPYRIGHT: (C)2010,JPO&INPIT |
