POWER-RECEIVING DEVICE AND NON-CONTACT POWER TRANSMISSION SYSTEM USING SAME

WIPO Patent Application WO/2012/121371

A1

[Problem] To provide a power-receiving device that can improve power utilization efficiency. [Solution] A power-receiving device (20) in a non-contact power transmission system (100) comprises a power-receiving antenna circuit (32) for receiving power transmitted from a power-transmitting device (10), a rectification circuit (40) for rectifying power received by the power-receiving antenna circuit (32), a frequency-changing circuit (70) for changing a received power frequency of the power-receiving antenna circuit (32), and a drive circuit (80) for driving the frequency-changing circuit (70). The power-receiving antenna circuit (32) has two terminals (La, Lb). The frequency-changing circuit (70) has a circuit configuration symmetrical about the circuit center (center tap (CT)) thereof, and is connected between the terminals (La, Lb). The rectification circuit (40) is a single-phase bridge rectification circuit. A ground terminal of the rectification circuit (40) is connected to the circuit center (center tap (CT)) of the frequency-changing circuit (70).

MISHINA KOICHI (JP)
SATO KOJI (JP)

PCT/JP2012/056121

September 13, 2012

March 09, 2012

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NEC TOKIN CORP (JP)
MISHINA KOICHI (JP)
SATO KOJI (JP)

H02J17/00

JP2000341884A	2000-12-08
JPH10145987A	1998-05-29
JPH0785233A	1995-03-31
JP2010224654A	2010-10-07
JP2001005938A	2001-01-12
JPH06284048A	1994-10-07

YAMAZAKI, TAKUYA (JP)
Takuya Yamazaki (JP)

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