Title:
WIRELESS POWER RECEIVING APPARATUS, WIRELESS POWER SUPPLYING APPARATUS, AND WIRELESS POWER SUPPLYING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/057896
Kind Code:
A1
Abstract:
An automatic tuning auxiliary circuit (80) is coupled in series to a transmitting antenna (20). A first switch (SWc1) and a second switch (SWc2) are provided in series between a first terminal (81) and a second terminal (82) of the automatic tuning auxiliary circuit (80). Furthermore, a third switch (SWc3) and a fourth switch (SWc4) are provided in series between the first terminal (81) and the second terminal (82). A first auxiliary capacitor (CA5) is provided between a connecting point (N1) where the first switch (SWc1) and the second switch (SWc2) are connected to each other, and a connecting point (N2) where the third switch (SWc3) and the fourth switch (SWc4) are connected to each other. A first control unit (40) performs switching among the first switch (SWc1) to the fourth switch (SWc4) at a frequency (fTX), which is a frequency equal to that of a drive voltage (VDRV), and with a certain phase difference (θTX) with respect to the drive voltage (VDRV).
Inventors:
ENDO YUKI (JP)
FURUKAWA YASUO (JP)
FURUKAWA YASUO (JP)
Application Number:
PCT/JP2012/006443
Publication Date:
April 25, 2013
Filing Date:
October 05, 2012
Export Citation:
Assignee:
ADVANTEST CORP (JP)
International Classes:
H02J17/00
Foreign References:
| JP2010541531A | 2010-12-24 | |||
| JP2009201211A | 2009-09-03 | |||
| JP2011507482A | 2011-03-03 | |||
| JP2008301645A | 2008-12-11 | |||
| JPH11155245A | 1999-06-08 | |||
| JP2001112104A | 2001-04-20 | |||
| JP2011083178A | 2011-04-21 |
Attorney, Agent or Firm:
MORISHITA, SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
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Claims:
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