Title:
WIRELESS POWER FEEDER, WIRELESS POWER RECEIVER, AND WIRELESS TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/090700
Kind Code:
A1
Abstract:
This wireless power receiver (120) according to one embodiment of the present invention is a wireless power receiver for obtaining power from a wireless power feeder (110) without contact therewith, the wireless power receiver (120) being provided with: a power-receiving resonant circuit (122) that contains a power-receiving coil (7) and a power-receiving capacitor (8), and is for obtaining power from a power-feeding coil (1) via the power-receiving coil (7), on the basis of the magnetic field resonance phenomenon between the power-receiving coil (7) and the power-feeding coil (1) in the wireless power feeder (110); a power-receiving load coil (9) for receiving a power supply from the power-receiving coil (7) without contact therewith; and an impedance converter (10) that has higher impedance on a primary side connected to the power-receiving load coil (9) than on a secondary side connected to a load (11), and is positioned between the power-receiving load coil (9) and the load (11).
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Inventors:
URANO TAKASHI (JP)
Application Number:
PCT/JP2011/078811
Publication Date:
July 05, 2012
Filing Date:
December 13, 2011
Export Citation:
Assignee:
TDK CORP (JP)
URANO TAKASHI (JP)
URANO TAKASHI (JP)
International Classes:
H02J17/00
Foreign References:
| JP2010104159A | 2010-05-06 | |||
| JP2000165132A | 2000-06-16 | |||
| JP2010166693A | 2010-07-29 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
Yoshiki Hasegawa (JP)
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Claims: