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Temperature compensation of collector-voltage control RF amplifiers

  • US 20090115520A1
  • Filed: 12/04/2006
  • Published: 05/07/2009
  • Est. Priority Date: 12/04/2006
  • Status: Active Grant
First Claim
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1. A method for temperature compensating an RF amplifier when generating an RF output signal comprising:

  • providing a control signal to a differential amplifier;

    generating a band gap current;

    generating a temperature proportional current;

    converting the band gap current and the temperature proportional current to an offset voltage;

    providing the offset voltage to the differential amplifier;

    generating a temperature compensated control signal with the differential amplifier;

    generating an applied collector voltage based on the temperature compensated control signal;

    applying the applied collector voltage to an output of the RF amplifier to thereby generate a temperature compensated RF output signal.

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