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OVER VOLTAGE PROTECTION DETECTION

  • US 20180241249A1
  • Filed: 02/22/2017
  • Published: 08/23/2018
  • Est. Priority Date: 02/22/2017
  • Status: Active Grant
First Claim
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1. A wireless power transmitter comprising:

  • a resonator configured to generate a wireless field for wirelessly transferring power to a wireless power receiver;

    an impedance detector configured to measure an impedance of the resonator; and

    a controller configured to detect operation of an over voltage protection mode of the wireless power receiver based on a frequency of change in impedance as measured by the impedance detector.

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