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Electronic control system for efficient transfer of power through resonant circuits

  • US 3,953,779 A
  • Filed: 05/30/1974
  • Issued: 04/27/1976
  • Est. Priority Date: 05/30/1974
  • Status: Expired due to Term
First Claim
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1. A controllable converter device for providing electrical current to a load, comprising in combination:

  • a power source;

    first and second switch means;

    capacitor means;

    a first series resonant circuit comprising said first switch means connected in series with the load and said capacitor means;

    a second series resonant circuit comprising said second switch means connected in series with the load and said capacitor means;

    means connecting said first and second resonant circuits across said power source;

    control means enabling alternate conduction of said first and second switch means to provide alternate direction load current from said power source to the load during alternate charging of said capacitor means;

    said alternate charging of said capacitor means providing alternate potentials which oppose said alternate conduction of said first and second switch means thereby alternately terminating conduction of said first and second switch means;

    and means connected to said first and second series resonant circuit for enabling discharge of said capacitor means between said alternate direction load currents to limit the voltage of said capacitor means.

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