Title:
WIRELESS ENERGY TRANSFER DEVICE AND WIRELESS ENERGY TRANSFER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/035745
Kind Code:
A1
Abstract:
A wireless energy transfer device (200) transmits an electric signal (S1) generating any of an electric field, a magnetic field, and an electromagnetic field. A bridge circuit (14) includes a plurality of switches (SW1, SW2). A controller (12) controls the switches (SW1, SW2) of the bridge circuit (14) at a first frequency (f1)which is a transmit frequency. A transmission coil (LT) and a resonant capacitor (CT) configure a resonant antenna connected to the bridge circuit (14) and resonate at a second frequency (f2) being not less than the first frequency (f1). The controller (12) is configured to control the length of dead time (Td) at which the switches (SW1, SW2) are all turned off.
Inventors:
ENDO YUKI (JP)
FURUKAWA YASUO (JP)
FURUKAWA YASUO (JP)
Application Number:
PCT/JP2011/005117
Publication Date:
March 22, 2012
Filing Date:
September 12, 2011
Export Citation:
Assignee:
ADVANTEST CORP (JP)
ENDO YUKI (JP)
FURUKAWA YASUO (JP)
ENDO YUKI (JP)
FURUKAWA YASUO (JP)
International Classes:
H02J17/00
Foreign References:
| JPH07227003A | 1995-08-22 | |||
| JPH03139168A | 1991-06-13 | |||
| JPS61185070A | 1986-08-18 | |||
| JP2007060829A | 2007-03-08 | |||
| JP2001297862A | 2001-10-26 |
Attorney, Agent or Firm:
MORISHITA, SAKAKI (JP)
Sakaki Morishita (JP)
Sakaki Morishita (JP)
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Claims: