SYSTEM FOR INDUCTIVE POWER TRANSFER

  • US 20080238364A1
  • Filed: 04/02/2007
  • Published: 10/02/2008
  • Est. Priority Date: 04/02/2007
  • Status: Active Grant
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First Claim
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1. A synchronous drive system for controlling the amplitude of oscillation in a primary LC circuit comprising;

  • a primary coil module having a switching coil amplifier communicating with the primary LC circuit for amplifying a pre-amplified source voltage and for outputting an amplified source voltage to the primary LC circuit,a resonance control module communicating with the primary LC circuit and said switching coil amplifier for detecting the natural resonance frequency of the primary LC circuit and for detecting each actual oscillation of the primary LC circuit over an oscillation cycle and for selectively delivering said pre-amplified source voltage to said switching coil amplifier based on the natural resonance frequency of primary LC circuit and each actual oscillation of the primary LC circuit to control the magnitude of each actual oscillation while synchronously operating the primary LC circuit at approximately natural resonance.

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