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Wireless power feeder/receiver and wireless power transmission system

  • US 9,006,935 B2
  • Filed: 12/22/2011
  • Issued: 04/14/2015
  • Est. Priority Date: 03/30/2011
  • Status: Active Grant
First Claim
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1. A wireless power feeder/receiver comprising:

  • a power feed/receive coil;

    a power feed/receive capacitor to configure a resonance circuit together with the power feed/receive coil;

    a coupling coil electromagnetically coupled to the power feed/receive coil;

    a power adjustment section performing at least any one of adjustment for AC power to be transmitted from the power feed/receive coil and adjustment for AC power to be received by the power feed/receive coil;

    a switching section switching connection of the power feed/receive coil, the power feed/receive capacitor, and the coupling coil to the power adjustment section, the power feed/receive coil, when being switched to connect with the power adjustment section, being connected to the power adjustment section via a coupling transformer; and

    a switching control section controlling the switching section.

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