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Switchable power level detector for multi-mode communication device

  • US 7,493,093 B2
  • Filed: 06/23/2005
  • Issued: 02/17/2009
  • Est. Priority Date: 04/27/2005
  • Status: Active Grant
First Claim
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1. A method for controlling transmit power level in a multi-mode communication device comprising:

  • sending a switch control signal to a switch responsive to a mode selected from two or more possible modes of operation;

    responsive to the switch control signal, connecting a sampler, corresponding to the selected mode, to a detector;

    amplifying an outgoing signal to generate an amplified outgoing signal;

    detecting the amplified outgoing signal to determine the power of the amplified outgoing signal;

    generating a power level feedback signal;

    processing the power level feedback signal to generate an amplifier control signal; and

    sending the amplifier control signal to an amplifier to control a power level of the outgoing signal.

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