| 摘要 |
PROBLEM TO BE SOLVED: To provide a power-transmitting device, a power-feeding system, and a power-feeding method that allow reducing power loss by enhancing the utilization efficiency of power and supplying power to a power-feeding user (a power-receiving device) with high power-transmission efficiency.SOLUTION: Depending on a power-feeding state (for example, the resonant frequency of a power-transmitting-side resonance coil is not the same as that of a power-receiving-side resonance coil, or the influence of their positional relation and the like), power transmitted from a power-supply section of a power-transmitting device is reflected to a power-transmitting coil side by the power-transmitting-side resonance coil. Further, a power-recovering function (a circulation function) for power reflected to the power-transmitting device is provided to recover the power reflected to the power-transmitting coil side and to reuse the power for power transmission. |
