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Class Information
Number: 330/260
Name: Amplifiers > With semiconductor amplifying device (e.g., transistor) > Including differential amplifier > Having signal feedback means
Description: Subject matter wherein a portion of the electrical signal output energy is applied to the input of the amplifier.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5442309 |
Low distortion output stage |
Aug. 15, 1995 |
| 5436593 |
Signal conditioning apparatus |
Jul. 25, 1995 |
| 5424682 |
Variable gain amplifier circuit |
Jun. 13, 1995 |
| 5420542 |
Varactor compensation in amplifier circuits |
May. 30, 1995 |
| 5418492 |
Fully differential non-op-amp-based positive feedback BJT biquad filter |
May. 23, 1995 |
| 5410271 |
Non-linear feedback network providing a linear transfer function |
Apr. 25, 1995 |
| 5406222 |
High gain transistor amplifier |
Apr. 11, 1995 |
| 5404097 |
Voltage to current converter with negative feedback |
Apr. 4, 1995 |
| 5396193 |
Frequency response-compensated circuit |
Mar. 7, 1995 |
| 5394113 |
High impedance low-distortion linear amplifier |
Feb. 28, 1995 |
| 5392002 |
Low voltage bipolar negative impedance converter |
Feb. 21, 1995 |
| 5382918 |
Capacitance multiplier for the internal frequency compensation of switching regulator integrated circuits |
Jan. 17, 1995 |
| 5382919 |
Wideband constant impedance amplifiers |
Jan. 17, 1995 |
| 5381106 |
Clipper circuitry suitable for signals with fractional-volt amplitudes |
Jan. 10, 1995 |
| 5378997 |
Low noise amplifier with capacitive feedback |
Jan. 3, 1995 |
| 5371476 |
Amplifying circuit |
Dec. 6, 1994 |
| 5355094 |
Feedback differential amplifier circuit |
Oct. 11, 1994 |
| 5349303 |
Electrical charge transfer apparatus |
Sep. 20, 1994 |
| 5345346 |
Positive feedback low input capacitance differential amplifier |
Sep. 6, 1994 |
| 5345073 |
Very high speed optical receiver with a cascadable differential action feedback driver |
Sep. 6, 1994 |
| 5341333 |
Circuits and methods for amplification of electrical signals |
Aug. 23, 1994 |
| 5341090 |
Bidirectional, transconductance, DC amplifier having high output compliance voltage |
Aug. 23, 1994 |
| 5327095 |
Method and circuit for increasing the output impedance of an inactive amplifier |
Jul. 5, 1994 |
| 5315399 |
Capacitive circuit |
May. 24, 1994 |
| 5315266 |
Amplifier having improved capacitive drive capability |
May. 24, 1994 |
| 5307024 |
Linearized level-shifting amplifier |
Apr. 26, 1994 |
| 5302868 |
Method and apparatus for providing a representation of an input voltage at a disabled voltage multiplier's output |
Apr. 12, 1994 |
| 5300896 |
Bootstrapped, AC-coupled differential amplifier |
Apr. 5, 1994 |
| 5287068 |
Comparator amplifier |
Feb. 15, 1994 |
| 5276405 |
Integrated instrumentation amplifier for below-ground inputs |
Jan. 4, 1994 |
| 5260672 |
Voltage follower circuit |
Nov. 9, 1993 |
| 5258723 |
Integrated instrumentation amplifier with integrated frequency-compensating capacitance |
Nov. 2, 1993 |
| 5256985 |
Current compensation technique for an operational amplifier |
Oct. 26, 1993 |
| 5252868 |
CMOS amplifier circuit and CCD delay line with CMOS amplifier |
Oct. 12, 1993 |
| 5237493 |
Current-to-voltage converter with low noise, wide bandwidth and high dynamic range |
Aug. 17, 1993 |
| 5233311 |
Differential amplifier and oscillator mixer comprising said amplifier |
Aug. 3, 1993 |
| 5229720 |
VCA circuit |
Jul. 20, 1993 |
| 5225791 |
Non-saturating complementary type unity gain amplifier |
Jul. 6, 1993 |
| 5225790 |
Tunable wideband active filter |
Jul. 6, 1993 |
| 5221909 |
Active load biasing circuit |
Jun. 22, 1993 |
| 5218320 |
Wideband amplifier circuit having automatic gain and offset voltage control |
Jun. 8, 1993 |
| 5216382 |
Single ended push pull amplifier circuit |
Jun. 1, 1993 |
| 5216381 |
Unitary-gain final stage particularly for monolithically integratable power amplifiers |
Jun. 1, 1993 |
| 5210505 |
Apparatus and method for an input stage of an operational amplifier |
May. 11, 1993 |
| 5204636 |
Dynamic limiting circuit for an amplifier |
Apr. 20, 1993 |
| 5202645 |
Stabilized transient response of a cascode CMOS amplifier |
Apr. 13, 1993 |
| 5191234 |
Pulse signal generator and cascode differential amplifier |
Mar. 2, 1993 |
| 5182477 |
Bipolar tunable transconductance element |
Jan. 26, 1993 |
| 5172073 |
Amplifying circuit |
Dec. 15, 1992 |
| 5172076 |
Resonant circuit formed of two amplifiers connected in a loop and multiple resonator circuits constructed therefrom |
Dec. 15, 1992 |
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