| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio power transmission system capable of selectively supplying power to a specific power reception apparatus (load) and surely intercepting power supply to another power reception apparatus (load).SOLUTION: A radio power transmission system 100 includes: a power transmission apparatus 10 comprising a reference oscillator 11, a first PLL frequency multiplier 12, a multiplier control unit 13, an AC power supply 14, power transmission means 15, and a transmission antenna 16; and a power reception apparatus 20 comprising power reception means 21, a reception antenna 22, a rectifier control unit 23, synchronous rectifier 24, and a low-pass filter 25. When supplying power to a predetermined load 200, the multiplier control unit 13 in the power transmission apparatus 10 controls a multiplication value of the first PLL frequency multiplier 12 to make an oscillatory frequency correspond to a natural frequency in the power reception apparatus 20 to which the predetermined load 200 is connected. |
