Gain control methods and systems in an amplifier assembly

Details Gain control methods and systems in an amplifier assembly Gain control methods and systems in an amplifier assembly

2007-02-27

2007-02-27

Choe, Henry (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S279000

Reexamination Certificate

active

11118336

ABSTRACT:
A Variable Gain Amplifier (VGA) amplifies an input signal according to a gain, to produce an amplified signal. A detector module detects a power indicative of a power of the amplified signal. A comparator module compares the detected power to a high threshold, a low threshold and a target threshold intermediate the high and low thresholds. A controller module changes the gain of the VGA so as to drive the detected power in a direction toward the middle threshold when the comparator module indicates the detected power is not between the high and low thresholds.

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