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POWER TRANSMITTING APPARATUS, POWER RECEIVING APPARATUS, CONTROL APPARATUS, AND WIRELESS POWER TRANSFER SYSTEM

  • US 20170170690A1
  • Filed: 02/15/2017
  • Published: 06/15/2017
  • Est. Priority Date: 03/26/2012
  • Status: Active Grant
First Claim
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1. A power transmitting apparatus comprising:

  • a power supply to generate AC power;

    a power transmitting inductor to transfer the AC power to a power receiving apparatus through magnetic coupling with a power receiving inductor in the power receiving apparatus;

    a mutual coupling adjusting unit to adjust a relative position between the power transmitting inductor and the power receiving inductor; and

    a control unit to control the mutual coupling adjusting unit based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor,wherein the control unit controls the mutual coupling adjusting unit so that the mutual coupling coefficient falls within a predetermined range and an upper limit of the predetermined range is a value less than a maximum of the mutual coupling coefficient between the power transmitting inductor and the power receiving inductor.

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