发明申请
- 专利标题： WIRELESS POWER FEEDER AND WIRELESS POWER TRANSMISSION SYSTEM
- 专利标题（中）： 无线电源馈线和无线电力传输系统
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申请号： US13328590申请日： 2011-12-16
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公开(公告)号： US20130154382A1公开(公告)日： 2013-06-20
- 发明人: Hitoyoshi Kurata , Masami Itakura
- 申请人： Hitoyoshi Kurata , Masami Itakura
- 申请人地址： JP Tokyo
- 专利权人： TDK CORPORATION
- 当前专利权人： TDK CORPORATION
- 当前专利权人地址： JP Tokyo
- 主分类号： H02J17/00
- IPC分类号： H02J17/00
摘要：
A wireless power feeder has a power feed coil that performs a power feed by a non-contact method to a wireless power receiver having a power receive coil. A power source section supplies AC power to the power feed coil. A control section calculates a power transmission efficiency from the power feed coil to the power receive coil to control a power source section so that the power supply to the power feed coil is in a stopped or intermittent state when the power transmission efficiency is lower than a first determination reference value; is in a first power supply state when the power transmission efficiency is equal to or higher than the first determination reference value and lower than a larger second determination reference value; and is in a second power supply state when the power transmission efficiency is equal to or higher than the second determination reference value.