DK140648B - Forstærkerkreds med indstillelig forstærkning. - Google Patents

Forstærkerkreds med indstillelig forstærkning.

Info

Publication number: DK140648B
Authority: DK; Denmark
Prior art keywords: amplifier circuit; adjustable gain; gain; adjustable; amplifier
Prior art date: 1971-05-14

Application number

DK233272AA

Other languages

Danish (da)

English (en)

Other versions

DK140648C (es

Inventor

Theodorus Jozef Van Kessel

Gerrit Jan Scholl

Original Assignee

Philips Nv

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.)

1971-05-14

Filing date

1972-05-10

Publication date

1979-10-15

1972-05-10 Application filed by Philips Nv filed Critical Philips Nv

1979-10-15 Publication of DK140648B publication Critical patent/DK140648B/da

1980-03-03 Application granted granted Critical

1980-03-03 Publication of DK140648C publication Critical patent/DK140648C/da

Links

Classifications

- 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 of the amplifier
- 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 of the amplifier in emitter-coupled or cascode amplifiers

DK233272AA 1971-05-14 1972-05-10 Forstærkerkreds med indstillelig forstærkning. DK140648B (da)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL7106620.A NL166162C (nl)	1971-05-14	1971-05-14	Versterkerschakeling met regelbare versterking.

Publications (2)

Publication Number	Publication Date
DK140648B true DK140648B (da)	1979-10-15
DK140648C DK140648C (es)	1980-03-03

Family

ID=19813154

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK233272AA DK140648B (da)	1971-05-14	1972-05-10	Forstærkerkreds med indstillelig forstærkning.

Country Status (13)

Country	Link
US (1)	US3921091A (es)
JP (1)	JPS5213903B1 (es)
AU (1)	AU467518B2 (es)
BE (1)	BE783419A (es)
CA (1)	CA951386A (es)
DE (1)	DE2223244C3 (es)
DK (1)	DK140648B (es)
ES (1)	ES402652A1 (es)
FR (1)	FR2139535A5 (es)
GB (1)	GB1376059A (es)
IT (1)	IT958845B (es)
NL (1)	NL166162C (es)
SE (1)	SE385756B (es)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3891937A (en) *	1972-12-21	1975-06-24	Philips Corp	Circuit arrangement for electronic gain/control, in particular electronic volume control circuit
US4030042A (en) *	1975-06-09	1977-06-14	Rca Corporation	Feedback amplifiers
US3991272A (en) *	1975-09-08	1976-11-09	Tarr Lloyd A	Audio AGC amplifier
US4114499A (en) *	1977-01-27	1978-09-19	Von Valtier Eric	Method and apparatus for securing vibrato and tremolo effects
US4335361A (en) *	1977-09-01	1982-06-15	Honeywell Inc.	Variable gain amplifier
US4155047A (en) *	1978-01-11	1979-05-15	Baskind David Lee	Voltage controlled attenuator
US4187472A (en) *	1978-01-30	1980-02-05	Beltone Electronics Corporation	Amplifier employing matched transistors to provide linear current feedback
NL7802973A (nl) *	1978-03-20	1979-09-24	Philips Nv	Versterkerschakeling met regelbare versterkings- factor.
NL7803561A (nl) *	1978-04-04	1979-10-08	Philips Nv	Regelschakeling.
US4284945A (en) *	1978-12-26	1981-08-18	Rca Corporation	Current dividers using emitter-coupled transistor pairs
US4259642A (en) *	1978-12-29	1981-03-31	Bell Telephone Laboratories, Incorporated	Repeater feedback circuit
JPS5646312A (en) *	1979-09-21	1981-04-27	Toshiba Corp	Variable gain circuit
NL8602409A (nl) *	1986-09-24	1988-04-18	Philips Nv	Regelbare versterker.
DE3729656A1 (de) *	1987-09-04	1989-03-23	Thomson Brandt Gmbh	Schaltungsanordnung zur unterdrueckung von stoergeraeuschen
US4816772A (en) *	1988-03-09	1989-03-28	Rockwell International Corporation	Wide range linear automatic gain control amplifier
JPH0250607A (ja) *	1988-08-12	1990-02-20	Sanyo Electric Co Ltd	利得制御増幅回路
US4878031A (en) *	1989-03-06	1989-10-31	Motorola, Inc.	Class B variable gain control circuit
US6798291B2 (en) *	2002-11-12	2004-09-28	Koninklijke Philips Electronics N.V.	Variable gain current amplifier with a feedback loop including a differential pair
US7977931B2 (en)	2008-03-18	2011-07-12	Qualcomm Mems Technologies, Inc.	Family of current/power-efficient high voltage linear regulator circuit architectures

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3323078A (en) *	1964-05-01	1967-05-30	Ampex	Transistorized bounce compensated remote variable gain control
US3502997A (en) *	1965-10-24	1970-03-24	Motorola Inc	Integrated semiconductor cascode amplifier
US3512096A (en) *	1967-05-31	1970-05-12	Hitachi Ltd	Transistor circuit having stabilized output d.c. level
DE1929253A1 (de) *	1969-06-10	1970-12-17	Licentia Gmbh	Regelbare Verstaerkerstufe
DE2047125A1 (de) *	1970-09-24	1972-04-13	Siemens Ag	Anordnung zur Regelung der Ausgangsspannung eines Verstärkers

1971
- 1971-05-14 NL NL7106620.A patent/NL166162C/xx not_active IP Right Cessation
1972
- 1972-05-08 AU AU42006/72A patent/AU467518B2/en not_active Expired
- 1972-05-10 IT IT68478/72A patent/IT958845B/it active
- 1972-05-10 DK DK233272AA patent/DK140648B/da unknown
- 1972-05-10 SE SE7206223A patent/SE385756B/xx unknown
- 1972-05-11 GB GB2206472A patent/GB1376059A/en not_active Expired
- 1972-05-11 CA CA141,868,A patent/CA951386A/en not_active Expired
- 1972-05-12 BE BE783419A patent/BE783419A/xx unknown
- 1972-05-12 ES ES402652A patent/ES402652A1/es not_active Expired
- 1972-05-12 JP JP47046576A patent/JPS5213903B1/ja active Pending
- 1972-05-12 DE DE2223244A patent/DE2223244C3/de not_active Expired
- 1972-05-15 FR FR7217266A patent/FR2139535A5/fr not_active Expired
1975
- 1975-01-16 US US541445A patent/US3921091A/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
SE385756B (sv)	1976-07-19
JPS5213903B1 (es)	1977-04-18
DK140648C (es)	1980-03-03
AU467518B2 (en)	1975-12-04
GB1376059A (en)	1974-12-04
US3921091A (en)	1975-11-18
NL7106620A (es)	1972-11-16
CA951386A (en)	1974-07-16
ES402652A1 (es)	1975-04-01
AU4200672A (en)	1973-11-15
DE2223244C3 (de)	1981-04-30
IT958845B (it)	1973-10-30
DE2223244A1 (de)	1972-11-23
BE783419A (fr)	1972-11-13
DE2223244B2 (de)	1980-09-04
NL166162C (nl)	1981-06-15
NL166162B (nl)	1981-01-15
FR2139535A5 (es)	1973-01-05

Publication	Publication Date	Title
NL169239C (nl)	1982-06-16	Stroomversterker.
DK140648B (da)	1979-10-15	Forstærkerkreds med indstillelig forstærkning.
NL162802C (nl)	1980-06-16	Geintegreerde verschilversterker.
SE403869B (sv)	1978-09-04	Forsterkare med variabel forsterkning
AT345895B (de)	1978-10-10	Differenzverstaerkerschaltung
NL187186C (nl)	1991-06-17	Differentiaalversterker.
CH554107A (de)	1974-09-13	Logarithmische verstaerkerschaltung.
ES179180Y (es)	1973-07-01	Cerca perfeccionada.
NL189586C (nl)	1993-05-17	Versterker met regelbare versterkingsfactor.
NL7514219A (nl)	1976-06-09	Signaalversterker met regelbare versterking.
NL171217C (nl)	1983-02-16	Telefoon - conferentie-versterkerschakeling.
NL7503901A (nl)	1975-10-07	Versterkerschakeling.
NL162278C (nl)	1980-04-15	Lijnversterker.
AT312715B (de)	1974-01-10	Verstärkungsgeregelter Verstärker
NL154379B (nl)	1977-08-15	Versterkerstelsel.
NL174606C (nl)	1984-07-02	Differentiaalversterker.
NL159546B (nl)	1979-02-15	Versterkerschakeling.
NL162263C (nl)	1980-04-15	Transistorversterker.
BR7200464D0 (pt)	1973-05-10	Um dispositivo amplificador aperfeicoado
BE780713A (fr)	1972-09-15	Amplificateur a gain variable
SE386349B (sv)	1976-08-02	Koppling for en forsterkare med varibel forsterkning
SE380589B (sv)	1975-11-10	Fluidistorforsterkare
ES171993Y (es)	1972-09-01	Taburete perfeccionado.
ES171258Y (es)	1972-07-16	Taburete perfeccionado.
ES165450Y (es)	1971-12-01	Pieza ceramica perfeccionada.