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Adaptive inductive power supply with communication

  • US 8,301,080 B2
  • Filed: 07/22/2011
  • Issued: 10/30/2012
  • Est. Priority Date: 02/04/2003
  • Status: Expired due to Term
First Claim
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1. A method for controlling operation of an inductive power supply system, comprising the steps of:

  • establishing an inductive coupling between the inductive power supply and a remote device having a secondary inductor in electrical communication with a load, the inductive power supply having a controller and a tank circuit;

    receiving information from the remote device;

    adaptively adjusting a variable impedance element of the inductive power supply when the remote device is inductively coupled with the inductive power supply;

    adjusting an operating frequency of the inductive power supply, wherein adjusting the operating frequency of the inductive power supply includes adjusting a drive circuit with the controller;

    detecting an operating parameter of the tank circuit; and

    determining whether an operational parameter of the tank circuit in the inductive power supply is within a nominal range, wherein said adjusting is in response to determining that said operational parameter is not within the nominal range.

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