Title:
WIRELESS POWER SUPPLY DEVICE AND WIRELESS POWER TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/150726
Kind Code:
A1
Abstract:
This wireless power supply device (2f) transmits, to a wireless power receiving device, a power signal which includes any of an electric field, magnetic field, or electromagnetic field component. A reflection coil (202) is provided separate from a radiation coil (200). A drive power source (204) supplies a drive current to the radiation coil (200). By controlling the phase of the current flowing in the reflection coil (202), a first phase control circuit (206) stabilizes at a prescribed value the phase difference between the current flowing in the reflection coil (202) and the current flowing in the radiation coil (200).
Inventors:
ENDO YUKI (JP)
FURUKAWA YASUO (JP)
FURUKAWA YASUO (JP)
Application Number:
PCT/JP2013/001667
Publication Date:
October 10, 2013
Filing Date:
March 13, 2013
Export Citation:
Assignee:
ADVANTEST CORP (JP)
International Classes:
H01F38/14
Foreign References:
| JPH09212606A | 1997-08-15 | |||
| JPH08263609A | 1996-10-11 | |||
| JP2007311986A | 2007-11-29 | |||
| JPH1132452A | 1999-02-02 | |||
| JP2009201594A | 2009-09-10 |
Attorney, Agent or Firm:
MORISHITA, SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
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