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Envelope modulated amplifier bias control and method

  • US 6,025,754 A
  • Filed: 07/02/1998
  • Issued: 02/15/2000
  • Est. Priority Date: 11/03/1997
  • Status: Expired due to Term
First Claim
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1. A method of reducing the power requirements for Class A operation of a RF amplifier comprising the steps of:

  • (a) sensing the envelope of the RF signal being amplified; and

    (b) modifying the power consumed by the amplifier by modifying the amplifier bias current in response to the sensed envelope.

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