NON-CONTACT POWER FEEDING CIRCUIT

To provide a non-contact power feeding circuit using a plurality of power transmission/reception coils, and being capable of obtaining good transmission efficiency in non-contact power feeding.SOLUTION: A power transmission coil Lt1 and a power transmission coil Lt2 that are disposed on a power transmission-side circuit, and a power reception coil Lr1 and a power reception coil Lr2 that are disposed on a power reception-side circuit are arranged in such a way that the power reception coil Lr1 and the power reception coil Lr2 are sandwiched between the power transmission coil Lt1 and the power transmission coil Lt2. A compensation reactance (Ct) having a value depending on a coupling coefficient between the power transmission coil Lt1 and the power transmission coil Lt2 is disposed on the power transmission-side circuit. A compensation reactance (Cr) having a value depending on a coupling coefficient between the power reception coil Lr1 and the power reception coil Lr2 is disposed on the power reception-side circuit.SELECTED DRAWING: Figure 5 【課題】複数の送受電コイルを用いた非接触給電の伝送効率を良好にする非接触給電回路を提供する。【解決手段】送電側の回路に設けられた送電コイルＬｔ１と送電コイルＬｔ２との間に、受電側の回路に設けられた受電コイルＬｒ１および受電コイルＬｒ２が挟み込まれるように各コイルを配置し、送電コイルＬｔ１と送電コイルＬｔ２との結合係数に応じた値の補償リアクタンス（Ｃｔ）を送電側の回路に設け、受電コイルＬｒ１と受電コイルＬｒ２との結合係数に応じた値の補償リアクタンス（Ｃｒ）を受電側の回路に設けたことを特徴とする。【選択図】図５