| 摘要 |
This non-contact power-feed apparatus is provided with: a power-feed element and a high-frequency power-source unit provided to a fixed part; a power-receiving element and a power-receiving conversion unit provided to a movable part; and a resonance element. The electrical load group on the movable part includes a plurality of electrical loads having mutually different operating voltages; the high-frequency power-source unit outputs a fundamental-wave voltage of a fundamental frequency and a high-frequency voltage that includes a high-harmonic voltage of a multiple frequency obtained by multiplying the fundamental frequency; and the power-supply element, the power-receiving element, and the resonance element correspond to the plurality of operating voltages, are provided in a plural number, and form a serial resonance circuit for each of the operating voltages, one of the resonance frequencies of the serial resonance circuit for each of the operating voltages being the fundamental frequency, the remainder being multiple frequencies different from each other. The present invention thereby enables power to be fed in a non-contact manner even when the operating voltages of the plurality of electrical loads on the movable part are different from each other, and to feed power with high efficiency without making the movable part heavy or bulky. |
