POWER TRANSMMISSION APPARATUS, POWER TRANSMISSION/RECEPTION APPARATUS, AND METHOD OF TRANSMITTING POWER

  • US 20100244578A1
  • Filed: 03/16/2010
  • Published: 09/30/2010
  • Est. Priority Date: 03/31/2009
  • Status: Active Grant
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First Claim
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1. A power transmission apparatus comprising:

  • a power source;

    a power transmission coil that transmits electric power supplied from the power source outward as magnetic energy through magnetic resonance;

    a peak searching unit that searches for a drive frequency at which the magnetic energy transmitted outward has a peak;

    a peak split detector that detects splitting of the drive frequency at which the magnetic energy transmitted outward has a peak;

    a selection unit that selects a higher-frequency side frequency among split drive frequencies generated by the splitting; and

    a drive unit that drives the power transmission coil using the frequency selected by the selection unit.

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