WIRELESS POWER TRANSMISSION SYSTEM |
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| 申请号 | EP11762250 | 申请日 | 2011-03-29 | 公开(公告)号 | EP2555376A4 | 公开(公告)日 | 2017-11-08 |
| 申请人 | PANASONIC IP MAN CO LTD; | 发明人 | KANNO HIROSHI; | ||||
| 摘要 | The wireless power transmission system of this invention transmits power over a resonant magnetic field. The system includes a power-transmitting resonator 105 and a power-receiving resonator 107, at least one of which is a series resonant circuit with an inductor including spiral wiring 201 and extended wires 213, 207a, 207b and 207c. The extended wire 213 connects a point 203 of the spiral wiring 201 to a power supplying structure, while the extended wires 207a, 207b and 207c connect other points of the spiral wiring 201 to the power supplying structure. Capacitors 209a, 209b and 209c and switches 211a, 211b and 211c are connected to the extended wires 207a, 207b and 207c, respectively. The series resonant circuit has its inductance varied according to which current path has been chosen by selectively turning ON one of the switches. A wiring portion 201a of the spiral wiring 201 has a low-resistance portion 2010, of which the wiring resistance per unit length at a resonant frequency is set to be lower than in at least a part of the rest of the spiral wiring. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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