IT1134988B - Amplificatore differenziale con controllo stimmetrico del guadagno - Google Patents

Amplificatore differenziale con controllo stimmetrico del guadagno

Info

Publication number: IT1134988B
Authority: IT; Italy
Prior art keywords: stimmetric; differential amplifier; gain control; gain; amplifier
Prior art date: 1980-01-15

Application number

IT19072/81A

Other languages

English (en)

Other versions

IT8119072A0 (it

Inventor

Leopold Albert Harwood

Erwin Johann Wittmann

Original Assignee

Rca Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-01-15

Filing date

1981-01-09

Publication date

1986-08-20

1981-01-09 Application filed by Rca Corp filed Critical Rca Corp

1981-01-09 Publication of IT8119072A0 publication Critical patent/IT8119072A0/it

1986-08-20 Application granted granted Critical

1986-08-20 Publication of IT1134988B publication Critical patent/IT1134988B/it

Links

Classifications

- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G1/00—Details of arrangements for controlling amplification
- H03G1/0005—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal
- H03G1/0017—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements
- H03G1/0023—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal the device being at least one of the amplifying solid-state elements in emitter-coupled or cascode amplifiers
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
- H03G3/02—Manually-operated control
- H03G3/04—Manually-operated control in untuned amplifiers
- H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Control Of Amplification And Gain Control (AREA)

IT19072/81A 1980-01-15 1981-01-09 Amplificatore differenziale con controllo stimmetrico del guadagno IT1134988B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/107,401 US4318051A (en)	1980-01-15	1980-01-15	Symmetrically gain controlled differential amplifier

Publications (2)

Publication Number	Publication Date
IT8119072A0 IT8119072A0 (it)	1981-01-09
IT1134988B true IT1134988B (it)	1986-08-20

Family

ID=22316472

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT19072/81A IT1134988B (it)	1980-01-15	1981-01-09	Amplificatore differenziale con controllo stimmetrico del guadagno

Country Status (14)

Country	Link
US (1)	US4318051A (it)
JP (1)	JPS56106410A (it)
KR (1)	KR830005759A (it)
AU (1)	AU6612181A (it)
CA (1)	CA1142608A (it)
DE (1)	DE3101118A1 (it)
ES (1)	ES8202213A1 (it)
FI (1)	FI810043L (it)
FR (1)	FR2473812A1 (it)
GB (1)	GB2068187B (it)
IT (1)	IT1134988B (it)
PL (1)	PL131080B1 (it)
PT (1)	PT72328B (it)
SE (1)	SE8100091L (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH0626291B2 (ja) *	1985-03-15	1994-04-06	株式会社東芝	利得制御装置
DE3811947A1 (de) *	1988-04-11	1989-10-19	Telefunken Electronic Gmbh	Steuerbare verstaerkerschaltung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1035505A (en)	1963-07-30	1966-07-06	Elliott Brothers London Ltd	Improvements relating to electric circuits
US3473134A (en) *	1966-04-15	1969-10-14	Us Navy	Temperature stable d.c. inverter
GB1195482A (en)	1967-07-27	1970-06-17	Northrop Corp	Integrated System for Processing Aircraft Operating Parameters
CA969689A (en) *	1973-05-02	1975-06-17	Microsystems International Limited	Audio frequency automatic gain control circuit
DE2344650A1 (de) *	1973-09-05	1975-03-13	Philips Patentverwaltung	Schaltungsanordnung zur balancesteuerung fuer einen mehrkanalverstaerker
US3970948A (en) *	1974-12-06	1976-07-20	Rca Corporation	Controller gain signal amplifier
JPS6013327B2 (ja) *	1975-05-07	1985-04-06	日本電気株式会社	直流制御型出力レベル調整回路
US4051519A (en) *	1975-12-29	1977-09-27	Rca Corporation	Phase control circuit suitable for use in a tint control stage of a color television system
JPS543433A (en) *	1977-06-09	1979-01-11	Victor Co Of Japan Ltd	Hue ajustment system

1980
- 1980-01-15 US US06/107,401 patent/US4318051A/en not_active Expired - Lifetime
1981
- 1981-01-08 PT PT72328A patent/PT72328B/pt unknown
- 1981-01-08 FI FI810043A patent/FI810043L/fi not_active Application Discontinuation
- 1981-01-09 SE SE8100091A patent/SE8100091L/ not_active Application Discontinuation
- 1981-01-09 IT IT19072/81A patent/IT1134988B/it active
- 1981-01-09 AU AU66121/81A patent/AU6612181A/en not_active Abandoned
- 1981-01-13 CA CA000368436A patent/CA1142608A/en not_active Expired
- 1981-01-13 GB GB8100885A patent/GB2068187B/en not_active Expired
- 1981-01-13 JP JP455981A patent/JPS56106410A/ja active Pending
- 1981-01-14 ES ES498491A patent/ES8202213A1/es not_active Expired
- 1981-01-14 KR KR1019810000084A patent/KR830005759A/ko not_active Ceased
- 1981-01-15 DE DE19813101118 patent/DE3101118A1/de not_active Withdrawn
- 1981-01-15 FR FR8100632A patent/FR2473812A1/fr active Pending
- 1981-01-15 PL PL1981229224A patent/PL131080B1/pl unknown

Also Published As

Publication number	Publication date
JPS56106410A (en)	1981-08-24
IT8119072A0 (it)	1981-01-09
GB2068187B (en)	1984-10-03
SE8100091L (sv)	1981-07-16
KR830005759A (ko)	1983-09-09
FI810043L (fi)	1981-08-16
PT72328A (en)	1981-02-01
DE3101118A1 (de)	1981-12-10
US4318051A (en)	1982-03-02
PL131080B1 (en)	1984-10-31
CA1142608A (en)	1983-03-08
ES498491A0 (es)	1982-01-01
GB2068187A (en)	1981-08-05
PL229224A1 (it)	1981-09-04
FI810043A7 (fi)	1981-07-16
FR2473812A1 (fr)	1981-07-17
PT72328B (en)	1982-01-05
AU6612181A (en)	1981-07-23
ES8202213A1 (es)	1982-01-01

Publication	Publication Date	Title
NL7904426A (nl)	1979-12-07	Versterker- en vereffeningssysteem.
JPS5344155A (en)	1978-04-20	Gain control amplifier
AR224937A1 (es)	1982-01-29	Amplificador de ganancia controlada
IT1091798B (it)	1985-07-06	Amplificatore di segnali con controllo del guadagno
IT8122051A0 (it)	1981-05-29	Complesso amplificatore integrato.
FR2482383B1 (fr)	1988-03-04	Amplificateur operationnel
JPS56132008A (en)	1981-10-16	Variable gain amplifier
NL7802973A (nl)	1979-09-24	Versterkerschakeling met regelbare versterkings- factor.
NL7710894A (nl)	1978-04-06	Afbuigversterker.
GB2034546B (en)	1983-05-18	Transistor amplifier with variable gain
GB2070870B (en)	1984-05-02	Gain control amplifier arrangement
JPS5365644A (en)	1978-06-12	High gain differential amplifier
ATA120481A (de)	1986-10-15	Verstaerker
IT8122843A0 (it)	1981-07-09	Complesso amplificatore.
IT8119905A0 (it)	1981-02-20	Complesso amplificatore.
IT1134988B (it)	1986-08-20	Amplificatore differenziale con controllo stimmetrico del guadagno
NL190681C (nl)	1994-06-16	Versterker met regelbare versterkingsfactor.
JPS56110314A (en)	1981-09-01	Variable gain amplifier
IT8122729A0 (it)	1981-07-03	Disposizione di amplificatore con distorsione bassissima.
NL7903030A (nl)	1979-10-22	Versterker.
IT8120757A0 (it)	1981-03-27	Amplificatore differenziale.
KR830000588U (ko)	1983-06-17	증폭기
DK287581A (da)	1982-01-03	Forstaerkerkobling
GB1545357A (en)	1979-05-10	Push-pull amplifier
ATE17422T1 (de)	1986-01-15	Differentialverstaerker.