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Circuits and methods for compensating switched mode amplifiers

  • US 6,593,806 B1
  • Filed: 08/10/2001
  • Issued: 07/15/2003
  • Est. Priority Date: 08/10/2001
  • Status: Expired due to Term
First Claim
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1. An amplifier system comprising:

  • switching amplifier circuitry for driving a load;

    analog conversion circuitry for recovering an analog signal from an output signal of said switching amplifier circuitry;

    an adaptive filter coupled to an output of said analog conversion circuitry, for deriving an inverse transfer function through said amplifier system and generating a coefficient map in response; and

    a compensation filter coupled to said switching amplifier circuitry and responsive to said coefficient map for compensating for variations in said load.

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