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Wireless power transmission apparatus for high efficiency energy charging

  • US 10,447,087 B2
  • Filed: 05/01/2017
  • Issued: 10/15/2019
  • Est. Priority Date: 06/07/2013
  • Status: Active Grant
First Claim
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1. A wireless power transmission apparatus for high efficiency energy charging, the apparatus comprising:

  • a resonator configured to transmit wireless power;

    a power supply unit configured to supply power;

    a converter configured to adjust a voltage applied to an input resistor of the power supply unit by converting the supplied power and output the converted power to the resonator;

    a first switching unit configured to connect the resonator to the power supply unit, and disconnect the resonator from the power supply unit; and

    a controller configured to control the first switching unit based on a result of comparing an amount of a current flowing into the resonator to an amount of predetermined current,wherein the resonator is disconnected from the power supply unit and the input resistor in response to the first switching unit being turned off.

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