Title:
WIRELESS POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/147339
Kind Code:
A1
Abstract:
This wireless power transmission device is provided with a pair of antennas (107, 109) capable of transmitting power in a non-contacting manner by resonant magnetic coupling having a frequency f0, one of the antennas (107, 109) being a serial resonance circuit and the other being a parallel resonance circuit; and a controller (100) for controlling the transmission frequency according to the size of the electrical power transmitted between the antennas (107, 109). The controller (100) sets, when the power transmitted between the antennas is higher than a reference value P1, the transmission frequency to a value within a first level range higher than frequency f0, and sets, when the power is lower than the reference value P1, the transmission frequency to a value within a second level range lower than the first level range.
More Like This:
| WO/2011/162611 | SMALL STEREO HEADSET |
| JP2015231329 | WIRELESS POWER TRANSMISSION DEVICE |
| JPWO2013108325 | Power supply system |
Inventors:
KANNO HIROSHI
YAMAMOTO HIROSHI
YAMAMOTO HIROSHI
Application Number:
PCT/JP2012/002816
Publication Date:
November 01, 2012
Filing Date:
April 24, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
KANNO HIROSHI
YAMAMOTO HIROSHI
KANNO HIROSHI
YAMAMOTO HIROSHI
International Classes:
H02J17/00
Foreign References:
| JP2008263710A | 2008-10-30 | |||
| JP2011147213A | 2011-07-28 | |||
| JP2011229360A | 2011-11-10 | |||
| US20080278264A1 | 2008-11-13 |
Other References:
See also references of EP 2704291A4
Attorney, Agent or Firm:
OKUDA, SEIJI (JP)
Seiji Okuda (JP)
Seiji Okuda (JP)
Download PDF:
Claims:
Previous Patent: CHARGING MEMBER, PROCESS CARTRIDGE AND ELECTROPHOTOGRAPHIC APPARATUS
Next Patent: HYDROGEN STATION
Next Patent: HYDROGEN STATION