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Class E amplifier with inductive clamp

  • US 6,885,567 B2
  • Filed: 09/08/2003
  • Issued: 04/26/2005
  • Est. Priority Date: 07/22/1999
  • Status: Expired due to Term
First Claim
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1. A power supply circuit for supplying alternating power to a load, comprising:

  • a source of direct current (DC) voltage;

    a single ended inverter, the single ended inverter receiving the DC input voltage and generating an alternating current (AC) output signal;

    a first harmonic filter at the output of the inverter, the first harmonic filter filtering out predetermined harmonic components of the AC signal to generate a filtered AC signal; and

    an output circuit at the output of the first harmonic filter for receiving the filtered AC signal and feeding the filtered AC signal to a load, wherein the output circuit includes a rectifier connected relative to a point in the output circuit such that if the voltage at the point exceeds a predetermined threshold, the rectifier conducts to cause at least one of voltage and current to return to the source of DC voltage and clamps the point to a predetermined voltage.

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