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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 |
| 4849708 |
Fully differential non-linear amplifier |
Jul. 18, 1989 |
| 4829266 |
CMOS power operational amplifier |
May. 9, 1989 |
| 4829265 |
Operational amplifier |
May. 9, 1989 |
| 4806877 |
Amplifier having a cascade circuit |
Feb. 21, 1989 |
| 4799026 |
Multifunction amplifier |
Jan. 17, 1989 |
| 4797631 |
Folded cascode amplifier with rail-to-rail common-mode range |
Jan. 10, 1989 |
| 4785257 |
Power amplifier circuit for an audio circuit |
Nov. 15, 1988 |
| 4785258 |
CMOS amplifier circuit which minimizes power supply noise coupled via a substrate |
Nov. 15, 1988 |
| 4782246 |
Phase shift circuit for electrical signal |
Nov. 1, 1988 |
| 4775843 |
Wideband post amplifier for product detector |
Oct. 4, 1988 |
| 4774476 |
Linearized differential amplifier |
Sep. 27, 1988 |
| 4769617 |
Differential amplifier circuit |
Sep. 6, 1988 |
| 4758796 |
Bridge amplifier operating from an asymmetrical power supply |
Jul. 19, 1988 |
| 4755767 |
High gain amplifier using two current mirrors |
Jul. 5, 1988 |
| 4755766 |
Differential to single-ended converter |
Jul. 5, 1988 |
| 4752744 |
Balanced transformer-less amplifier circuit |
Jun. 21, 1988 |
| 4749852 |
Image sensor driving circuit |
Jun. 7, 1988 |
| 4749956 |
Fully-differential operational amplifier for MOS integrated circuits |
Jun. 7, 1988 |
| 4748422 |
Amplifier circuit suitable for use as an active filter circuit |
May. 31, 1988 |
| 4746877 |
Direct-coupled wideband amplifier |
May. 24, 1988 |
| 4743861 |
Frequency response compensation circuit |
May. 10, 1988 |
| 4743783 |
Pulse width modulator circuit for switching regulators |
May. 10, 1988 |
| 4739281 |
Analog buffer amplifier |
Apr. 19, 1988 |
| 4730168 |
CMOS output stage with large voltage swing and with stabilization of the quiescent current |
Mar. 8, 1988 |
| 4728901 |
Power buffer circuit |
Mar. 1, 1988 |
| 4724315 |
Optical receiver |
Feb. 9, 1988 |
| 4723112 |
Level shift circuit for differential signals |
Feb. 2, 1988 |
| 4721920 |
Broad-band integrator |
Jan. 26, 1988 |
| 4721921 |
Amplifier having improved gain/bandwidth product |
Jan. 26, 1988 |
| 4717869 |
Controlled current source apparatus for signals of either polarity |
Jan. 5, 1988 |
| 4716381 |
High-current operational amplifier |
Dec. 29, 1987 |
| 4714894 |
Operational amplifier |
Dec. 22, 1987 |
| 4714845 |
Low offset voltage follower circuit |
Dec. 22, 1987 |
| 4703284 |
High-frequency amplifier |
Oct. 27, 1987 |
| 4703285 |
Wideband amplifier with active high-frequency compensation |
Oct. 27, 1987 |
| 4701720 |
Capacitive feedback to boost amplifier slew rate |
Oct. 20, 1987 |
| 4697152 |
Fully differential switched capacitor amplifier having autozeroed common-mode feedback |
Sep. 29, 1987 |
| 4691174 |
Fast recovery amplifier |
Sep. 1, 1987 |
| 4689607 |
Bidirectional transconductance amplifier |
Aug. 25, 1987 |
| 4689578 |
Hydrophone pre-amplifier with self-calibration |
Aug. 25, 1987 |
| 4680554 |
Real time network receiver system fast settling amplifier |
Jul. 14, 1987 |
| 4679002 |
Electromagnetically shielded narrow band electroencephalographic amplifier |
Jul. 7, 1987 |
| 4675616 |
Second order all pass network |
Jun. 23, 1987 |
| 4672326 |
Limited output operational amplifier |
Jun. 9, 1987 |
| 4667166 |
Differential amplifier system |
May. 19, 1987 |
| 4661978 |
Subscriber line interface circuit having an impedence synthesizer |
Apr. 28, 1987 |
| 4661789 |
Microwave recursive filter |
Apr. 28, 1987 |
| 4661779 |
Operational amplifier |
Apr. 28, 1987 |
| 4659997 |
Differential voltage measuring circuit |
Apr. 21, 1987 |
| 4659998 |
Voltage follower |
Apr. 21, 1987 |
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