System and method for modifying output power of an...

Details System and method for modifying output power of an... System and method for modifying output power of an...

2007-01-23

2007-01-23

Shingleton, Michael B (Department: 2817)

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

C330S133000, C330S254000, C330S256000, C330S272000, C330S279000, C330S285000, C327S306000

Reexamination Certificate

active

10861481

ABSTRACT:
A system for communicating information includes a variable gain amplifier (VGA) responsive to an input signal and a gain control signal for controlling a gain of the VGA. The system also includes a power amplifier responsive to the VGA. An output power level of the power amplifier is compared to a predetermined reference value to generate the gain control signal. The gain control signal is offset by a gain offset value. To change the output power level of the power amplifier from a first output power level to a second output power level, a first predetermined reference value and a first gain offset value associated with the first output power level are changed substantially concurrently to a second predetermined reference value and a second gain offset value, respectively, associated with the second output power level.

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