Title:
WIRELESS RECEIVER, WIRELESS POWER SUPPLY, AND WIRELESS TRANSMISSION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/132755
Kind Code:
A1
Abstract:
A wireless power supply (2f) transmits a power signal including any one of an electric field, a magnetic field, or an electromagnetic field to a wireless receiver. A transmission antenna (20) includes a transmission coil (LTX). An automatic tuning compensation circuit (30f) is coupled in parallel to a transmission antenna (20). A power supply (10) applies an AC drive voltage between a transmission antenna (30f) and both ends of the automatic tuning compensation circuit (30f). A first controller (40) switches a plurality of switches (SW1, SW2) synchronously with the drive voltage. A voltage monitoring unit (36) monitors the voltage (VCA1) generated in an auxiliary capacitor (CA1).
Inventors:
ENDO YUKI (JP)
FURUKAWA YASUO (JP)
FURUKAWA YASUO (JP)
Application Number:
PCT/JP2013/000846
Publication Date:
September 12, 2013
Filing Date:
February 15, 2013
Export Citation:
Assignee:
ADVANTEST CORP (JP)
International Classes:
H02J17/00
Domestic Patent References:
| WO2012164845A1 | 2012-12-06 |
Foreign References:
| JPH08501435A | 1996-02-13 | |||
| JPH11155245A | 1999-06-08 | |||
| JP2011044036A | 2011-03-03 | |||
| JP2007252049A | 2007-09-27 | |||
| JP2011083178A | 2011-04-21 |
Attorney, Agent or Firm:
MORISHITA, SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
Download PDF:
Claims: