发明名称 |
Detection apparatus, electric power receiving apparatus, electric power transmission apparatus, wireless electric power transmission system, and detection method |
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. |
申请公布号 |
EP2552030(A2) |
申请公布日期 |
2013.01.30 |
申请号 |
EP20120005266 |
申请日期 |
2012.07.18 |
申请人 |
SONY CORPORATION |
发明人 |
NAKANO, HIROAKI;HASHIGUCHI, TAKAAKI;FUKUDA, SHINICHI;FUJIMAKI, KENICHI |
分类号 |
H04B5/00;H02J5/00;H02J7/02 |
主分类号 |
H04B5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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