| 摘要 |
PROBLEM TO BE SOLVED: To reduce a leakage magnetic field emitted in non-contact power transmission, without separately providing a device for cancelling the leakage magnetic field.SOLUTION: A non-contact power supply system comprising a plurality of power supply devices, each of which independently performs non-contact power transmission, comprises operation setting means for performing setting of operation of the plurality of power supply devices. Each of the plurality of power supply devices comprises a drive circuit for supplying, according to an instruction given by the operation setting means, first AC current or second AC current that has the approximately same frequency as that of the first AC current and has a phase having a predetermined phase difference between the phase and that of the first AC current, to its own power transmission coil. The operation setting means sets operation of the plurality of power supply devices so as to reduce a difference between the number of power supply devices in which the first AC current is supplied to their power transmission coils and the number of power supply devices in which the second AC current is supplied to their power transmission coils. |
