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Wireless power receiver voltage control enabling simultaneous communications to transmitter in over-voltage state

  • US 10,498,171 B2
  • Filed: 09/15/2016
  • Issued: 12/03/2019
  • Est. Priority Date: 10/12/2015
  • Status: Active Grant
First Claim
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1. An electronic device comprising:

  • circuitry configured toreceive a wirelessly induced voltage from another device via a magnetically induced connection with the another device,determine that an overvoltage condition exists in a case that the wirelessly induced voltage exceeds a first threshold voltage,control switches of a rectifier that converts the wirelessly induced voltage to a rectified voltage, wherein each of the switches of the rectifier include a plurality of parallel-connected switch segments, andconfigure one or more of the plurality of parallel-connected switch segments of one or more of the switches of the rectifier to operate in a voltage suppression mode by directly controlling a gate voltage of the one or more of the plurality of parallel-connected switch segments, whereinthe one or more the one or more of the plurality of parallel-connected switch segments operating in the voltage suppression mode are configured to provide a discharge path for a shunting current to reduce the rectified voltage in response to a determination that the overvoltage condition exists.

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