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METHOD AND APPARATUS FOR POWER CONVERTER FOR CLASS D AUDIO POWER AMPLIFIERS

  • US 20090309658A1
  • Filed: 06/12/2009
  • Published: 12/17/2009
  • Est. Priority Date: 06/16/2008
  • Status: Active Grant
First Claim
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1. A method comprising:

  • applying positive and negative supply voltages to a class D power amplifier;

    comparing a difference between the positive and negative supply voltages;

    producing a pulse width modulated control signal based on the difference;

    controlling synchronous rectifiers based on the pulse width modulated control signal.

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