Amplifiers – Signal feedback – In cascade amplifiers
Reexamination Certificate
2007-03-13
2007-03-13
Nguyen, Patricia (Department: 2817)
Amplifiers
Signal feedback
In cascade amplifiers
C330S296000, C330S291000
Reexamination Certificate
active
11055925
ABSTRACT:
The method controls, in a feedback mode, a common collector or common drain amplifier, biased with a voltage applied on a bias node produced by a biasing circuit that generates a temperature compensated reference voltage from which the bias voltage applied on the bias node of the amplifier is derived. The quiescent voltage on the output node of the amplifier is made substantially independent from temperature by sensing the quiescent voltage on the output node, and adjusting the voltage applied on the bias node of the amplifier based upon the difference between the reference voltage and the sensed quiescent voltage for maintaining it constant.
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Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Jorgenson Lisa K.
Nguyen Patricia
STMicroelectronics S.r.l.
STMicroelectronics SA
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