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Systems and methods for identifying an ideal operation frequency for wireless power transfer

  • US 10,000,133 B2
  • Filed: 04/20/2016
  • Issued: 06/19/2018
  • Est. Priority Date: 04/20/2016
  • Status: Active Grant
First Claim
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1. A method for wirelessly transmitting power to power or charge a wireless power receiver, the method comprising:

  • during a first time period, transmitting power at a first power level from a wireless power transmitter to the wireless power receiver;

    determining a frequency for transmitting power at a second power level based on a ratio of a current level of the wireless power receiver to a current level of a wireless power transmitter at the first power level;

    during a second time period, transmitting power at the second power level and at the frequency, the first power level lower than the second power level.

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