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SYSTEM AND METHOD FOR FREQUENCY PROTECTION IN WIRELESS CHARGING

  • US 20150270739A1
  • Filed: 11/26/2014
  • Published: 09/24/2015
  • Est. Priority Date: 03/20/2014
  • Status: Active Grant
First Claim
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1. An apparatus for controlling wireless charging, comprising:

  • a receiver communication circuit of a first entity configured to receive a current wirelessly from a second entity via electromagnetic induction during the charging or alignment with the second entity;

    a frequency measurement circuit configured to determine an operating frequency of the received current or a voltage induced by the electromagnetic induction; and

    a controller configured to compare the operating frequency to a threshold and adjust an operation of the charging or the alignment based on the comparison, the controller configured to adjust the operation via continuing the charging or the alignment in response to a difference between the operating frequency and the threshold being less than or equal to a first tolerance level, and via stopping or refusing the charging or the alignment in response to the difference being greater than the first tolerance level.

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