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Class Information
Number: 330/290
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including d.c. feedback bias control for stabilization
Description: Subject matter with feedback circuit for direct currents, for the purpose of operating point stabilization as compensating for changes in temperature, aging, etc., of the semiconductor device, or devices, which may include means such as bypass capacitors to eliminate signal feedback.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4849712 |
Amplifier gain control circuit arrangements |
Jul. 18, 1989 |
| 4797632 |
Variable gain amplifier circuit and its use in an automatic gain control arrangement |
Jan. 10, 1989 |
| 4755768 |
Amplifier and display using the former |
Jul. 5, 1988 |
| 4731529 |
Light measuring circuit having circuitry for bypassing a low frequency component in the output of a photoelectric conversion element |
Mar. 15, 1988 |
| 4633189 |
NF tone control circuit |
Dec. 30, 1986 |
| 4612514 |
Feedback amplifier |
Sep. 16, 1986 |
| 4599577 |
Transistorized amplification stage with improved polarization device |
Jul. 8, 1986 |
| 4586003 |
On-off rapidly switchable amplifier circuit with d-c feedback |
Apr. 29, 1986 |
| 4564818 |
Transimpedance amplifier having an improved gain/bandwidth product |
Jan. 14, 1986 |
| 4532477 |
Distortion compensation for a microwave amplifier |
Jul. 30, 1985 |
| 4531100 |
Amplifier suitable for low supply voltage operation |
Jul. 23, 1985 |
| 4521737 |
Bipolar-MOS current amplifier having active turn-off circuitry |
Jun. 4, 1985 |
| 4495471 |
Buffer amplifier |
Jan. 22, 1985 |
| 4486718 |
High gain transistor amplifier producing an output free from noise carried on the power voltage |
Dec. 4, 1984 |
| 4467290 |
Signal amplifier with wide linear dynamic range |
Aug. 21, 1984 |
| 4459553 |
D.C. Stabilization circuit for a follower-type amplifier |
Jul. 10, 1984 |
| 4439745 |
Amplifier circuit |
Mar. 27, 1984 |
| 4420724 |
FET Amplifier with wide dynamic range |
Dec. 13, 1983 |
| 4356450 |
Offset compensating circuit for operational amplifier |
Oct. 26, 1982 |
| 4342006 |
Amplifier circuit for supplying load with output signal current proportional to input signal voltage |
Jul. 27, 1982 |
| 4335361 |
Variable gain amplifier |
Jun. 15, 1982 |
| 4322687 |
Operational amplifier with improved offset correction |
Mar. 30, 1982 |
| 4311967 |
Compensation for transistor output resistance |
Jan. 19, 1982 |
| 4292599 |
Low pass active filter |
Sep. 29, 1981 |
| 4280103 |
Multistage transistor amplifier |
Jul. 21, 1981 |
| 4275453 |
Smoothing filter for digital to analog conversion |
Jun. 23, 1981 |
| 4268798 |
High performance summing amplifier |
May. 19, 1981 |
| 4264981 |
Circuit arrangement for compensating the change in input capacitance at a first gate electrode of a dual-gate MOS field-effect transistor |
Apr. 28, 1981 |
| 4259642 |
Repeater feedback circuit |
Mar. 31, 1981 |
| 4218659 |
Amplifier circuit for a hall-effect head |
Aug. 19, 1980 |
| 4216434 |
Variable gain alternating voltage amplifier |
Aug. 5, 1980 |
| 4147992 |
Amplifier circuit having a high degree of common mode rejection |
Apr. 3, 1979 |
| RE29844 |
Unit transistor amplifier with matched input and output impedances |
Nov. 21, 1978 |
| 4105944 |
Quiescent biasing of r-f power transistors for other than class A operation |
Aug. 8, 1978 |
| 4105943 |
Integrated amplifier with negative feedback |
Aug. 8, 1978 |
| 4095189 |
Electronic power amplifier for delivering a constant power into a load impedance |
Jun. 13, 1978 |
| 4080577 |
Semiconductor integrated circuit |
Mar. 21, 1978 |
| 4071830 |
Complementary field effect transistor linear amplifier |
Jan. 31, 1978 |
| 4042886 |
High input impedance amplifier circuit having temperature stable quiescent operating levels |
Aug. 16, 1977 |
| 4032864 |
Electronic circuit having a misfet as an amplifying element |
Jun. 28, 1977 |
| 3955047 |
D.C. reinsertion in video amplifier |
May. 4, 1976 |
| 3939433 |
Feedback circuit |
Feb. 17, 1976 |
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