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SQUARE WAVE DRIVEN POWER AMPLIFIER

  • US 3,815,030 A
  • Filed: 07/13/1973
  • Issued: 06/04/1974
  • Est. Priority Date: 07/13/1973
  • Status: Expired due to Term
First Claim
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1. A relatively high power amplifier comprising in combination:

  • a square wave signal source;

    a plurality of signal amplifier sections commonly coupled to the output of said square wave signal source, each amplifier section operating to individually provide an amplified square wave output;

    inductive combining circuit means having a relatively low distributed capacitance and a relatively high leakage reactance, coupled to said plurality of amplifier sections and providing a relatively high power square wave output;

    respective capacitance coupling means coupling the square wave output of each of said plurality of amplifier sections to said combining circuit means, each coupling means having a selected capacitance value which in combination with said leakage reactance of said combining circuit means is adapted to resonate in the operating frequency band of said square wave signal source;

    a resonant network having a low impedance to the fundamental frequency of the square wave output of said combining circuit means while attenuatng the harmonic frequencies of said fundamental frequencies and thereby provide a sine wave output of current and voltage; and

    a load coupled to the harmonic filter and being responsive to the sine wave of current and voltage provided thereby.

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