NON-CONTACT POWER SUPPLY DEVICE AND POWER TRANSMISSION DEVICE

WIPO Patent Application WO/2020/152999

A1

This power transmission device 2 of a non-contact power supply device 1 comprises: a transmission coil 14 that supplies power to a power receiving device 3; a power supply circuit 10 which converts DC power to AC power and supplies the AC power to the transmission coil 14, the DC power being supplied from a DC power supply 11 through a plurality of switching elements (13-1 to 13-4) connected in a full-bridge shape or a half-bridge shape between DC power supplies (11, 12) and the transmission coil 14; a phase adjustment circuit 16 having an LC series circuit connected in parallel with the transmission coil 14 and a switching element connected in series with the LC series circuit; and a control circuit 18 which controls switching of the switching element of the phase adjustment circuit 16 between ON and OFF, according to the measured value of the amount of current, by means of a current detection circuit 17, when any of the plurality of switching elements of the power supply circuit 10 is turned off.

JP6834366	Power supply
JPH08149856	POWER CONVERSION CONTROLLER
WO/2023/283725	A MULTILEVEL ELECTRIC POWER CONVERTER

NAKAO GORO (JP)
NOMURA ATSUSHI (JP)
KAWAI YUSUKE (JP)
NAKAJO MASANOBU (JP)

PCT/JP2019/047247

July 30, 2020

December 03, 2019

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OMRON TATEISI ELECTRONICS CO (JP)

H02M7/48; H02J7/00; H02J50/12

WO2017134870A1

2017-08-10

US20150194811A1	2015-07-09
JP2018099001A	2018-06-21

AOKI, Atsushi et al. (JP)

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