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Method for performing wireless charging control of an electronic device with aid of predetermined data in non-volatile memory, and associated apparatus

  • US 9,941,751 B2
  • Filed: 04/01/2014
  • Issued: 04/10/2018
  • Est. Priority Date: 01/27/2014
  • Status: Active Grant
First Claim
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1. A method for performing wireless charging control of an electronic device, the method comprising the steps of:

  • receiving at least one detection result, the detection result indicating a result of a detection operation at a DC output terminal of a rectifier of the electronic device, wherein the rectifier is coupled to a power input coil, wherein the at least one detection result indicates a current that is output through a DC output terminal of the rectifier; and

    estimating, by the electronic device, an input power of the power input coil, the input power being estimated using the at least one detection result and a set of predetermined data, the set of predetermined data comprising a first estimated input power level for a first current level of the DC output terminal and a second estimated input power level for a second current level of the DC output terminal, wherein the set of predetermined data is stored in a non-volatile (NV) memory of the electronic device as look up table,wherein information regarding the estimated input power is transmitted to a transmitter for the transmitter to perform wireless charging foreign object detection (FOD) using the information regarding the estimated input power.

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