| 摘要 |
A power transmitting system in which power can be successfully supplied by magnetic resonance from a power transmitting device to a selected power receiving device among a plurality of power receiving devices. The power receiving device includes a variable unit which can change the self resonant frequency of a resonance coil in accordance with an invalidation signal transmitted from the power transmitting device. Thus, even in the case where the plurality of power receiving devices are provided for one power transmitting device, the self resonant frequencies of the resonance coils included in the power receiving devices which are not to be supplied with power are changed to avoid resonance with the power transmitting device. Consequently, power can be successfully and selectively supplied to the power receiving devices to be supplied with power. |
