Amplifiers – Combined with automatic amplifier disabling switch means
Patent
1997-04-17
2000-05-30
Mottola, Steven J.
Amplifiers
Combined with automatic amplifier disabling switch means
330124R, H03F 368
Patent
active
060695250
ABSTRACT:
An amplifier circuit having a high linearity mode of operation and a high efficiency mode of operation. The amplifier circuit comprises an amplifier having a variable active device periphery and a variable supply voltage; and a control circuit, coupled to the amplifier, for decreasing the variable active device periphery and increasing the variable supply voltage when in the high linearity mode of operation, and for increasing the variable active device periphery and decreasing the variable supply voltage when in the high efficiency mode of operation.
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"A 900 MHz CMOS RF Popwer Amplifier with Programmable Output Power" by Maryam Rofoufaran et al.; Integrated Citcuits & Systems Laboratory.
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Camarillo Richard J.
Sevic John F.
Brown Charles D.
Martin Roger W.
Mottola Steven J.
Qualcomm Incorporated
Wadsworth Philip
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