发明名称 |
Wireless power feeder, wireless power receiver, and wireless power transmission system |
摘要 |
A wireless power feeder which performs power feed to a wireless power receiver having a power receive resonance circuit including a power receive coil and a power receive capacitor, this wireless power feeder including: a power feed coil; a resonance current detector; and a control circuit; wherein the power feed coil does not substantially constitute a resonance circuit; the current detector has a detection resonance circuit including a detection coil and a detection capacitor, and detects a resonance current of the power receive resonance circuit; the winding region of the detection coil in the current detector is smaller than the winding region of the power feed coil; and the detection coil in the current detector is disposed such that the central winding axis thereof forms an angle of not less than 80� and not more than 100� with respect to magnetic field vectors generated by the power feed coil. |
申请公布号 |
US8669677(B2) |
申请公布日期 |
2014.03.11 |
申请号 |
US201113250054 |
申请日期 |
2011.09.30 |
申请人 |
URANO TAKASHI;TDK CORPORATION |
发明人 |
URANO TAKASHI |
分类号 |
H01F27/42;H01F37/00;H01F38/00 |
主分类号 |
H01F27/42 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|