| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a non-contact power transmission device which prevents the occurence of a leakage magnetic flux and can respond to charging of a plurality of kinds of electronic devices requiring different amounts of power by a single power transmission device. <P>SOLUTION: A non-contact power transmission device for supplying power from transmission coils to receiving coils by using electromagnetic induction, comprises a plurality of transmission coils 11 and 12 arranged nearly concentrically, in which only the transmission coil having an external shape most similar to an external shape of a receiving coil 21 and the transmission coil arranged inside the transmission coil are driven. Accordingly, the non-contact power transmission device can prevent the occurence of a leakage magnetic flux even when transmitting power to the receiving coils having different external shapes by a single transmission device. <P>COPYRIGHT: (C)2012,JPO&INPIT |
