发明申请
- 专利标题： DETECTION APPARATUS, ELECTRIC POWER RECEIVING APPARATUS, ELECTRIC POWER TRANSMISSION APPARATUS, WIRELESS ELECTRIC POWER TRANSMISSION SYSTEM, AND DETECTION METHOD
- 专利标题（中）： 检测装置，电力接收装置，电力传输装置，无线电力传输系统及检测方法
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申请号： US13551861申请日： 2012-07-18
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公开(公告)号： US20130027078A1公开(公告)日： 2013-01-31
- 发明人: Hiroaki Nakano , Takaaki Hashiguchi , Shinichi Fukuda , Kenichi Fujimaki
- 申请人： Hiroaki Nakano , Takaaki Hashiguchi , Shinichi Fukuda , Kenichi Fujimaki
- 申请人地址： JP Tokyo
- 专利权人： SONY CORPORATION
- 当前专利权人： SONY CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2011-162589 20110725
- 主分类号： H02J17/00
- IPC分类号： H02J17/00 ; G01R27/32 ; G01R31/40
摘要：
A method for wireless power transmission includes obtaining, via a Q-value circuit, first and second voltages at respective first and second nodes of a resonance circuit. The first and second voltages are effective to determine if foreign matter is present in a space affecting wireless power transmission. The method includes controlling a switching section between the Q-value circuit and the resonance circuit such that at least a part of the electric power transmission process occurs at a different time than when the first and second voltages are obtained.