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Power amplifier with bias control

  • US 7,477,106 B2
  • Filed: 11/20/2003
  • Issued: 01/13/2009
  • Est. Priority Date: 12/19/2002
  • Status: Active Grant
First Claim
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1. A power amplifier comprising:

  • a first stage including a signal amplification transistor for amplifying an input signal, the signal amplification transistor having a control electrode responsive to a bias current, anda first bias circuit including a controlled current source for converting a gain control voltage to the bias current, wherein the bias circuit includes a non-linear voltage/current converter for converting the gain control voltage to the bias current.

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