CONTACTLESS POWER TRANSFER SYSTEM

WIPO Patent Application WO/2012/099169

A1

A half-bridge inverter (20) is used as a high-frequency alternating-current power supply to be connected to the primary side of a contactless power transformer (30), and a voltage-doubler rectifier (40) is used for converting an alternating-current output from the secondary side of the contactless power transformer (30) into a direct current. Although the alternating-current output voltage of the half-bridge inverter drops to a half of that of a full-bridge inverter, because the output voltage of the voltage-doubler rectifier becomes two times as high as that of a full-wave rectifier, the voltage ratio between the input voltage to the inverter and the secondary-side direct-current voltage becomes almost the same as a whole. The voltage of the contactless power transformer (30) drops to approximately a half of the conventional voltage, which is advantageous in terms of insulation and reducing ferrite loss.

JP2002154497	ENERGY TRANSMISSION PROTECTING SYSTEM OF PHOTOVOLTAIC POWER GENERATION SATTELITE
WO/2013/039160	MOVING-VEHICLE ELECTRIC POWER FEEDING SYSTEM
WO/2013/061612	CONTACTLESS POWER TRANSMISSION DEVICE

ABE SHIGERU (JP)
YASUDA TOMIO (JP)
YAMANOUCHI RYOUICHI (JP)
SUZUKI AKIRA (JP)

PCT/JP2012/050968

July 26, 2012

January 18, 2012

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TECHNOVA INC (JP)
UNIV SAITAMA NAT UNIV CORP (JP)
ABE SHIGERU (JP)
YASUDA TOMIO (JP)
YAMANOUCHI RYOUICHI (JP)
SUZUKI AKIRA (JP)

H02J17/00; B60L5/00; B60L11/18; B60L50/15; B60L50/16; B60M7/00; H02M1/00

JP2008104295A	2008-05-01
JP2001136667A	2001-05-18
JP2000217277A	2000-08-04
JP2010233364A	2010-10-14
JPH03125344U	1991-12-18
JP2010197093A	2010-09-09
JP2010288441A	2010-12-24

See also references of EP 2667481A4

OHASHI KOJI (JP)
Kimiharu Ohashi (JP)

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