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Fast closed-loop power control for non-constant envelope modulation

  • US 20040083409A1
  • Filed: 10/28/2002
  • Published: 04/29/2004
  • Est. Priority Date: 10/28/2002
  • Status: Active Grant
First Claim
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1. A method for controlling output power from an amplifier using a closed power control loop, comprising:

  • detecting a modulated signal provided to a power amplifier using a first power detector;

    detecting a portion of an output of the power amplifier using a second power detector;

    comparing the modulated signal and the portion of the output power;

    developing a gain signal from the modulated signal and the portion of the output power;

    developing an error signal by comparing the gain signal to a reference signal; and

    adjusting an output power of the power amplifier based upon the error signal.

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