CONTACTLESS POWER SUPPLY DEVICE CONTROL METHOD AND CONTACTLESS POWER SUPPLY DEVICE

WIPO Patent Application WO/2015/104768

A1

In the present invention, a contactless power supply device comprises: a power supplying device (1) that includes a power supply-side resonant circuit (12), and a primary coil (L1) which is connected to the power supply-side resonant circuit (12); and a power receiving device (2) that includes a power reception-side resonant circuit (21), a secondary coil (L2) which is connected to the power reception-side resonant circuit (21) and which can receive power from the primary coil (L1) using magnetic energy, and a rectifier circuit (22) which rectifies power received at the secondary coil (L2) to generate output power and supplies the same to a load. A contactless power supply device control method uses at least one of the following techniques: a technique in which the primary coil (L1) is electrified using the high frequency current of each of a plurality of test-use drive frequencies, and while the primary coil is being electrified the resonant frequency of resonance characteristics in a state where the primary coil (L1) and the secondary coil (L2) are coupled is specified; or a technique in which on the basis of the output power supplied to the load, the resonant frequency of resonance characteristics while the output power is being supplied in a state where the primary coil (L1) and the secondary coil (L2) are coupled is specified.

KIFUJI MARIKO
INAKAGATA SATORU
TAMURA HIDEKI
NAKAZAWA KAZUSHI
IWAHORI YUTAKA

PCT/JP2014/006408

July 16, 2015

December 23, 2014

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PANASONIC IP MAN CO LTD (JP)

H02J17/00; H02J7/00

WO2012101907A1

2012-08-02

JP2008141940A	2008-06-19
JP2011125184A	2011-06-23
JP2013085350A	2013-05-09
JP2010239769A	2010-10-21

ONDA, Makoto et al. (JP)
Makoto Onda (JP)

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