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Tuning methods and apparatus for inductively coupled power transfer (ICPT) systems

  • US 20090302933A1
  • Filed: 04/28/2006
  • Published: 12/10/2009
  • Est. Priority Date: 04/29/2005
  • Status: Active Grant
First Claim
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1. A method for controlling a resonant circuit of an ICPT system, the method including the steps of:

  • introducing a predetermined perturbation in a magnitude of a variable reactance in the resonant circuit;

    sensing a change in a property of the resonant circuit in response to the perturbation, and;

    varying the variable reactance to alter the resonant frequency of the circuit in response to the sensed change.

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