using Darlington transistors

Industry

CPC
H03F3/3072

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Parent Industries

HELECTRICITY H03Electronic circuits H03FAMPLIFIERS H03F3/00Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements

Current Industry

H03F3/3072using Darlington transistors

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Controlling a power amplification stage of an audio signal amplifier
- Patent number 10,361,672
- Issue date Jul 23, 2019
- Entotem Limited
- Andrew Paul George Randall
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Controlling a power amplification stage of an audio signal amplifier
- Patent number 10,014,840
- Issue date Jul 3, 2018
- Entotem Limited
- Andrew Paul George Randall
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Low cost high performance power amplifier utilizing two-stage-inclu...
- Patent number 7,652,531
- Issue date Jan 26, 2010
- Zhenwu Wang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method for double sampling loop negative feedback and double sampli...
- Patent number 7,403,068
- Issue date Jul 22, 2008
- Zongshan Zhou
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ultra linear high speed operational amplifier output stage
- Patent number 6,794,943
- Issue date Sep 21, 2004
- Texas Instruments Incorporated
- Neil Gibson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High beta output stage for high speed operational amplifier
- Patent number 6,630,866
- Issue date Oct 7, 2003
- Texas Instruments Incorporated
- Neil Gibson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Bias circuit for class AB high frequency amplifiers
- Patent number 6,614,306
- Issue date Sep 2, 2003
- National Semiconductor Corporation
- Andrew J. Morrish
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor integrated circuit device
- Patent number 6,559,718
- Issue date May 6, 2003
- Hitachi, Ltd.
- Ryotaro Kudo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier
- Patent number 6,512,418
- Issue date Jan 28, 2003
- Andreas Wahlberg
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dactrans matchcado
- Patent number 6,351,230
- Issue date Feb 26, 2002
- Aldea Silvarahawk
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Bridged driving amplifier and a telecommunication device
- Patent number 6,005,437
- Issue date Dec 21, 1999
- U.S. Philips Corporation
- Malcolm J. Kay
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplification circuit
- Patent number 5,387,878
- Issue date Feb 7, 1995
- Yamaha Corporation
- Shinichi Fujita
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier having temperature compensated bias control
- Patent number 5,337,012
- Issue date Aug 9, 1994
- U.S. Philips Corporation
- Eise C. Dijkmans
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Opto-isolated bias circuit for operating push-pull amplifiers in cl...
- Patent number 4,752,745
- Issue date Jun 21, 1988
- Threshold Corporation
- Nelson S. Pass
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Quasi-complementary class B IC output stage
- Patent number 4,587,494
- Issue date May 6, 1986
- National Semiconductor Corporation
- Robert J. Widlar
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Bias circuit which is independent of output device voltage characte...
- Patent number 4,491,804
- Issue date Jan 1, 1985
- Motorola, Inc.
- W. Eric Main
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifier output stage distortion reduction
- Patent number 4,263,563
- Issue date Apr 21, 1981
- National Semiconductor Corporation
- James S. Congdon
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Optically coupled bias circuit for complementary output circuit and...
- Patent number 4,121,168
- Issue date Oct 17, 1978
- Burr-Brown Research Corporation
- Robert M. Stitt
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Constant voltage - constant current high fidelity amplifier
- Patent number 4,107,619
- Issue date Aug 15, 1978
- Threshold Corporation
- Nelson S. Pass
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Capacitor structure and circuit facilitating increased frequency st...
- Patent number 4,027,271
- Issue date May 31, 1977
- Motorola, Inc.
- David L. Cave
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Protective circuit for transistor amplifier
- Patent number 3,992,678
- Issue date Nov 16, 1976
- Sony Corporation
- Tadao Suzuki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Capacitor structure and circuit facilitating increased frequency st...
- Patent number 3,953,875
- Issue date Apr 27, 1976
- Motorola, Inc.
- David L. Cave
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3904979
- Patent number 3,904,979
- Issue date Sep 9, 1975
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
3896393
- Patent number 3,896,393
- Issue date Jul 22, 1975
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3504293
- Patent number 3,504,293
- Issue date Mar 31, 1970
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3500218
- Patent number 3,500,218
- Issue date Mar 10, 1970
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3437946
- Patent number 3,437,946
- Issue date Apr 8, 1969
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Controlling a Power Amplification Stage of an Audio Signal Amplifier
- Publication number 20180287579
- Publication date Oct 4, 2018
- Entotem Limited
- Andrew Paul George Randall
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Low Cost High Performance Power Amplifier Utilizing Two-Stage-Inclu...
- Publication number 20090115528
- Publication date May 7, 2009
- Zhenwu Wang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method For Double Sampling Loop Negative Feedback And Double Sampli...
- Publication number 20070296502
- Publication date Dec 27, 2007
- Zongshan Zhou
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Ultra linear high speed operational amplifier output stage
- Publication number 20030102920
- Publication date Jun 5, 2003
- Neil Gibson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
High beta output stage for high speed operational amplifier
- Publication number 20030102921
- Publication date Jun 5, 2003
- Neil Gibson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Ultra complementary audio amplifier output stage
- Publication number 20020005759
- Publication date Jan 17, 2002
- Teck Lee Wong
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor integrated circuit device
- Publication number 20010015674
- Publication date Aug 23, 2001
- Ryotaro Kudo
- H03 - BASIC ELECTRONIC CIRCUITRY

using Darlington transistors

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Controlling a power amplification stage of an audio signal amplifier

Controlling a power amplification stage of an audio signal amplifier

Low cost high performance power amplifier utilizing two-stage-inclu...

Method for double sampling loop negative feedback and double sampli...

Ultra linear high speed operational amplifier output stage

High beta output stage for high speed operational amplifier

Bias circuit for class AB high frequency amplifiers

Semiconductor integrated circuit device

Amplifier

Dactrans matchcado

Bridged driving amplifier and a telecommunication device

Amplification circuit

Amplifier having temperature compensated bias control

Opto-isolated bias circuit for operating push-pull amplifiers in cl...

Quasi-complementary class B IC output stage

Bias circuit which is independent of output device voltage characte...

Amplifier output stage distortion reduction

Optically coupled bias circuit for complementary output circuit and...

Constant voltage - constant current high fidelity amplifier

Capacitor structure and circuit facilitating increased frequency st...

Protective circuit for transistor amplifier

Capacitor structure and circuit facilitating increased frequency st...

3904979

3896393

3504293

3500218

3437946

Patents Applicationslast 30 patents

Controlling a Power Amplification Stage of an Audio Signal Amplifier

Low Cost High Performance Power Amplifier Utilizing Two-Stage-Inclu...

Method For Double Sampling Loop Negative Feedback And Double Sampli...

Ultra linear high speed operational amplifier output stage

High beta output stage for high speed operational amplifier

Ultra complementary audio amplifier output stage

Semiconductor integrated circuit device