发明名称 |
POWER FEEDING DEVICE AND CONTACTLESS POWER FEEDING SYSTEM PROVIDED WITH POWER FEEDING DEVICE |
摘要 |
A power feeding device utilizing an electromagnetic resonance coupling method and a contactless power feeding system can be provided. A coupling coefficient of electromagnetic induction coupling in the power feeding device and/or the inside of a power receiving device is optimized to improve electric power transmission efficiency of a resonance frequency regardless of positions of the power feeding device and the power receiving device. Provided is a power feeding device or a contactless power feeding system in which an S11 parameter which is a reflection component of electric power output from a high-frequency power source of the power feeding device is monitored, and one or both of positions of a transmission coil and a first resonant coil in the power feeding device and positions of a reception coil and a second resonant coil in a power receiving device are changed to adjust a coupling coefficient of electromagnetic induction coupling. |
申请公布号 |
US2012161537(A1) |
申请公布日期 |
2012.06.28 |
申请号 |
US201113316626 |
申请日期 |
2011.12.12 |
申请人 |
KAMATA KOICHIRO;SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
KAMATA KOICHIRO |
分类号 |
H02J17/00 |
主分类号 |
H02J17/00 |
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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