A non-contact power feeding device A is provided to feed power from a primary coil 7 on a primary side 1 to a secondary coil 8 on a secondary side 2, which are closely located to face each other with no contact through an air gap g, based on a mutual induc...

In this non-contact power feeding apparatus 15, a power feeding side circuit 6 is provided with a power transmission coil 3 and a parallel capacitor 11 to provide a parallel resonance circuit, while a power receiving side circuit 7 is provided with a power...

In a non-contact power feeding apparatus 7 of the present invention, power is fed through an air gap G from a power transmission coil 8 of a power feeding side circuit 4 to a power receiving coil 9 of a power receiving side circuit 5, which are closely loc...

In a non-contact power feeding device 22 of the present invention, power is fed through an air gap G with no contact from a power transmission coil 3 of a power feeding side circuit 19 to a power receiving coil 8 of a power receiving side circuit 20, which...

A non-contact power feeding device 1 feeds power from a power transmission coil 3 to a power receiving coil 5 based on a mutual induction effect of electromagnetic induction. In such a non-contact power feeding device 1, power can be fed to the power recei...

A high frequency electric wire 6 is provided in such a manner that a large number of wires 7 are bundled, twisted and insulated with an outer sheath S. Each wire 7 has an extra-fine hollow pipe structure of a capillary shape. The wire 7 is provided to make...