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Method and apparatus for controlling output power in power amplifiers

  • US 7,991,437 B2
  • Filed: 06/15/2007
  • Issued: 08/02/2011
  • Est. Priority Date: 10/30/2006
  • Status: Expired due to Fees
First Claim
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1. An apparatus, comprising:

  • a power amplifier module; and

    a transceiver module coupled to provide a signal to an input of the power amplifier module, the transceiver module including;

    an integrated temperature sensor to sense an instantaneous operating temperature of the transceiver and providing a first sensor output signal dependent upon the operating temperature;

    an integrated voltage sensor to sense a supply voltage and generate a second sensor output signal dependent upon the instantaneous supply voltage; and

    a processor configured to receive the first and second sensor output signals, provide a control signal to the power amplifier module to reduce the output power of the power amplifier responsive to the first and the second sensor output signals, wherein the control signal includes a bias signal based in part on a target value for the output power of the power amplifier module.

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