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POWER FEEDING DEVICE AND CONTACTLESS POWER FEEDING SYSTEM PROVIDED WITH POWER FEEDING DEVICE

  • US 20120161537A1
  • Filed: 12/12/2011
  • Published: 06/28/2012
  • Est. Priority Date: 12/24/2010
  • Status: Active Grant
First Claim
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1. A power feeding device comprising:

  • a high-frequency power source;

    a transmission coil electrically connected to the high-frequency power source;

    a resonant circuit comprising a resonant coil;

    a detector;

    a control circuit electrically connected to the detector; and

    a moving unit electrically connected to the control circuit,wherein the high-frequency power source is configured to output an electric power through the transmission coil,wherein the resonant coil is configured to perform electromagnetic induction coupling with the transmission coil,wherein the detector is configured to detect a reflection component of the electric power reflected at the transmission coil,wherein the control circuit is configured to output a signal in accordance with the reflection component of the electric power, andwherein the moving unit is configured to control a distance between the transmission coil and the resonant circuit in accordance with the signal.

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