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Wireless power receiver and method for controlling the wireless power receiver

  • US 10,135,289 B2
  • Filed: 11/28/2016
  • Issued: 11/20/2018
  • Est. Priority Date: 12/01/2015
  • Status: Active Grant
First Claim
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1. A wireless power receiver comprising:

  • a resonant circuit configured to receive electromagnetic waves from a wireless power transmitter and output alternate current (AC) power;

    a rectifier configured to rectify the AC power received from the resonant circuit into direct current (DC) power;

    a DC/DC converter configured to convert the DC power received from the rectifier and output the converted DC power;

    a battery;

    a charger configured to charge the battery with the converted DC power; and

    a controller configured to, upon detection of an event indicating a change in impedance at an output end of the DC/DC converter, control the impedance at the output end of the DC/DC converter and keep the impedance constant by adjusting voltage at the output end of the DC/DC converter.

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