FR2381416A1 - Amplificateur de tension alternative a gain commande - Google Patents

Amplificateur de tension alternative a gain commande

Info

Publication number
FR2381416A1
FR2381416A1 FR7805105A FR7805105A FR2381416A1 FR 2381416 A1 FR2381416 A1 FR 2381416A1 FR 7805105 A FR7805105 A FR 7805105A FR 7805105 A FR7805105 A FR 7805105A FR 2381416 A1 FR2381416 A1 FR 2381416A1
Authority
FR
France
Prior art keywords
controlled
voltage amplifier
gain
alternative voltage
feedback loop
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
FR7805105A
Other languages
English (en)
Other versions
FR2381416B3 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of FR2381416A1 publication Critical patent/FR2381416A1/fr
Application granted granted Critical
Publication of FR2381416B3 publication Critical patent/FR2381416B3/fr
Granted legal-status Critical Current

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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • 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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices

Landscapes

  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Amplificateur de tension alternative à gain commandé, comportant une boucle de contre-réaction à courant continu pour le réglage du point de fonctionnement. Une boucle de contre-réaction à résistance variable, constituée par le montage en série d'une résistance 13 commandée électroniquement et d'un condensateur 11, est branchée en parallèle avec la boucle de contre-réaction à courant continu 10, pour la variation du gain.
FR7805105A 1977-02-22 1978-02-22 Amplificateur de tension alternative a gain commande Granted FR2381416A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772707609 DE2707609A1 (de) 1977-02-22 1977-02-22 In seiner verstaerkung steuerbarer wechselspannungsverstaerker

Publications (2)

Publication Number Publication Date
FR2381416A1 true FR2381416A1 (fr) 1978-09-15
FR2381416B3 FR2381416B3 (fr) 1980-11-28

Family

ID=6001874

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805105A Granted FR2381416A1 (fr) 1977-02-22 1978-02-22 Amplificateur de tension alternative a gain commande

Country Status (9)

Country Link
US (1) US4216434A (fr)
JP (1) JPS53104145A (fr)
AT (1) AT365018B (fr)
DE (1) DE2707609A1 (fr)
FR (1) FR2381416A1 (fr)
GB (1) GB1597032A (fr)
IT (1) IT1092347B (fr)
NO (1) NO780592L (fr)
ZA (1) ZA78758B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545531A1 (fr) * 1991-12-05 1993-06-09 Ford Motor Company Limited Amplificateur à canaux multiples et adaptation de gain
EP0545536A1 (fr) * 1991-12-05 1993-06-09 Ford Motor Company Limited Amplificateur commandé en tension et utilisant un amplificateur opérationnel

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2812431A1 (de) * 1978-03-22 1979-09-27 Licentia Gmbh Verstaerker mit veraenderbarem uebertragungsmass
JPS59156007A (ja) * 1983-02-25 1984-09-05 Hitachi Ltd 増幅回路
JPS634225A (ja) * 1986-06-24 1988-01-09 Asahi Optical Co Ltd 電子シャッターカメラの測光アンプ
DE3627056A1 (de) * 1986-08-09 1988-02-18 Thomson Brandt Gmbh Schaltung zur dynamik-kompression oder -expansion in einem nutzsignalweg
DE3642984A1 (de) * 1986-12-17 1988-06-30 Thomson Brandt Gmbh Schaltung zur dynamik-kompression und/oder -expansion eines signals
US4868515A (en) * 1988-10-21 1989-09-19 The United States Of America As Represented By The Secretary Of The Navy Narrow-bandwidth unstable laser resonator
US5412346A (en) * 1993-12-13 1995-05-02 At&T Corp. Variable gain voltage signal amplifier
JPH10290127A (ja) * 1997-04-17 1998-10-27 Rohm Co Ltd 電流／電圧変換ｉｃ及び光電気変換ｉｃ
EP0939484B1 (fr) * 1998-02-23 2004-06-09 Canon Kabushiki Kaisha Amplificateur opérationnel
JP2000101355A (ja) * 1998-09-17 2000-04-07 Fujitsu Ltd 増幅回路及びそれを備えた半導体集積回路
JP3496612B2 (ja) * 2000-02-04 2004-02-16 ヤマハ株式会社 電子ボリューム回路
ITSV20010016A1 (it) * 2001-05-28 2002-11-28 Esaote Spa Amplificatore a guadagno variabile e basso rumore per sengali di ricezione di macchine per il rilevamento di immagini mediante ultrasuoni o
US7224153B2 (en) * 2005-04-26 2007-05-29 Texas Instruments Incorporated Apparatus and method to compensate for effects of load capacitance on power regulator
US7262655B2 (en) * 2005-04-28 2007-08-28 Freescale Semiconductor, Inc. High bandwidth resistor
BRPI0821900A2 (pt) * 2007-10-15 2015-06-16 Dow Global Technologies Inc Composição de fluido funcional para conferir poder lubrificante a um sistema hidráulico, pacote de aditivos para conferir poder lubrificante a um sistema hjidráulico, método para conferir poder lubrificante, sistema de frenagem, uso de uma composição de fluido e uso de um pacote de aditivos
JP5116540B2 (ja) * 2008-04-09 2013-01-09 ルネサスエレクトロニクス株式会社 フィルタ回路及び受信装置
KR102584245B1 (ko) * 2021-06-07 2023-10-05 주식회사 에스이피엔지니어링 스위칭전원용 pwm 제어장치

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569603A (en) * 1968-08-01 1971-03-09 Hammond Corp Moving formant band-pass amplifier for an electronic musical instrument
DE2013365B2 (de) * 1970-03-20 1972-08-03 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart Mehrstufiger transistorverstaerker fuer schwerhoerigengeraete
US3679986A (en) * 1970-09-04 1972-07-25 Ibm Non-linear feedback gain control and peak detector system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545531A1 (fr) * 1991-12-05 1993-06-09 Ford Motor Company Limited Amplificateur à canaux multiples et adaptation de gain
EP0545536A1 (fr) * 1991-12-05 1993-06-09 Ford Motor Company Limited Amplificateur commandé en tension et utilisant un amplificateur opérationnel

Also Published As

Publication number Publication date
AT365018B (de) 1981-12-10
ZA78758B (en) 1979-01-31
FR2381416B3 (fr) 1980-11-28
NO780592L (no) 1978-08-23
US4216434A (en) 1980-08-05
DE2707609A1 (de) 1978-08-24
GB1597032A (en) 1981-09-03
IT7819910A0 (it) 1978-02-02
IT1092347B (it) 1985-07-06
ATA87778A (de) 1981-04-15
JPS53104145A (en) 1978-09-11

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Legal Events

Date Code Title Description
ST Notification of lapse