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Method and system for enhancement of power amplifier efficiency through controlled variation of gain in a power Amplifier Driver

  • US 7,538,610 B2
  • Filed: 12/31/2006
  • Issued: 05/26/2009
  • Est. Priority Date: 12/06/2006
  • Status: Active Grant
First Claim
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1. A method for controlling gain in an amplifier circuit, the method comprising:

  • detecting an amplitude of an analog input signal;

    determining a gain value based in said detecting;

    determining at least one subsequent gain value based on said gain value;

    generating an intermediate analog signal based on said analog input signal and said gain value, wherein an amplitude of said intermediate analog signal is constant; and

    generating an analog output signal based on said analog input signal, said gain value and said at least one subsequent gain value.

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