Amplifier for stably maintaining a constant output

Details Amplifier for stably maintaining a constant output Amplifier for stably maintaining a constant output

1994-04-15

1995-12-12

Mullins, James B.

Amplifiers

With control of power supply or bias voltage

With control of input electrode or gain control electrode bias

327309, 330279, 330280, 330308, 375317, H03G 330

Patent

active

054753422

ABSTRACT:
An amplifier having an automatic threshold control circuit (ATC) and a limiting amplifier. The ATC detects and holds a top value (peak value) and bottom value of an input signal, and outputs the middle value between the top and bottom values as a reference voltage. The limiting amplifier amplifies the input signal in a linear operating region whose center is set at the reference voltage, thereby maintaining the output amplitude at a constant value. Even if the amplitude and the level of the input signals instantaneously changes by a large amount, the ATC can follow the change, so that the offset compensation and gain compensation of the amplifier can be achieved instantaneously. This makes it possible to continue producing the output of a constant amplitude with little phase deviations.

REFERENCES:
patent: 2999925 (1961-09-01), Thomas
patent: 3838448 (1974-09-01), Garde et al.
patent: 3947769 (1976-03-01), Rousos et al.
patent: 4375037 (1983-04-01), Ikushima
patent: 4456889 (1984-06-01), Kuman
patent: 4540897 (1985-09-01), Takaoka et al.
patent: 4631737 (1986-12-01), Davis et al.
patent: 4641324 (1987-02-01), Karsh et al.
patent: 4736391 (1988-04-01), Siegel
patent: 4975657 (1990-12-01), Eastmond
patent: 5025251 (1991-06-01), Mitter et al.
patent: 5091920 (1992-02-01), Ikeda et al.
patent: 5307196 (1994-04-01), Kinoshita
Fiehmann et al, "Data Demodulator Circuit Arrangement," IBM Technical Disclosure Bulletin, vol. 20, No. 2, Jul. 1977, p. 769.
"A Burst Mode, Packet Receiver with Precision Reset and Automatic Dark Level Compensation for Optical Bus Communications", Swartz et al., VLSI Symp., pp. 67-68, 1993.
C. A. Eldering, "Theoretical Determination of Sensitivity Penalty for Burst Mode Fiber Optic Receivers", Journal of Lightwave Technology, vol. 11, No. 12, Dec. 1993, New York, pp. 2145-2149.
J. Akagi et al, "AlGaAs/GaAs HBT Receiver ICs for a 10 Gbps Optical Communication System", Proceedings of the Gallium Arsenide Integrated Circuit Symposium, New Orleans, Oct. 7-10, 1990, Nr. Symp. 12, pp. 45-48, Institute of Electrical and Electronics Engineers.

Affiliated with

Also associated with

Rating

Amplifier for stably maintaining a constant output does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amplifier for stably maintaining a constant output, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier for stably maintaining a constant output will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1362593