Title:
WIRELESS POWER TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/080529
Kind Code:
A1
Abstract:
A wireless power transmission device as in an embodiment of the present invention is provided with: a pair of antennas (107, 109) capable of transmitting power through a resonant magnetic field coupling without contact therebetween, wherein one antenna in the pair is a series resonant circuit in which the resonant frequency is fs, while the other is a parallel resonant circuit in which the resonant frequency is fp; and an oscillator (103) connected to the antenna in the pair of antennas (107, 109) which is on the side transmitting high-frequency power. When the coupling coefficient between the antenna (107) and the antenna (109) is set to k, fs and fp are set in a manner such that the following relationship is satisfied: -1.1516×k2+0.0363×k+0.9983≤fs/fp<1.
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Inventors:
KANNO HIROSHI
Application Number:
PCT/JP2012/007618
Publication Date:
June 06, 2013
Filing Date:
November 28, 2012
Export Citation:
Assignee:
PANASONIC CORP (JP)
International Classes:
H02J17/00; H01F38/14
Domestic Patent References:
| WO2011138860A1 | 2011-11-10 | |||
| WO2011122003A1 | 2011-10-06 |
Foreign References:
| JP2011041464A | 2011-02-24 |
Attorney, Agent or Firm:
OKUDA, SEIJI (JP)
Seiji Okuda (JP)
Seiji Okuda (JP)
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Claims: