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FR2383551A1 - Amplificateur a telecommande - Google Patents

Amplificateur a telecommande

Info

Publication number
FR2383551A1
FR2383551A1 FR7805116A FR7805116A FR2383551A1 FR 2383551 A1 FR2383551 A1 FR 2383551A1 FR 7805116 A FR7805116 A FR 7805116A FR 7805116 A FR7805116 A FR 7805116A FR 2383551 A1 FR2383551 A1 FR 2383551A1
Authority
FR
France
Prior art keywords
amplifier
control signal
remote control
control amplifier
gain
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
FR7805116A
Other languages
English (en)
Other versions
FR2383551B1 (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.)
Motorola Solutions Inc
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of FR2383551A1 publication Critical patent/FR2383551A1/fr
Application granted granted Critical
Publication of FR2383551B1 publication Critical patent/FR2383551B1/fr
Expired 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
    • H03G1/0017—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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/02—Remote control of amplification, tone or bandwidth

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)

Abstract

a. Amplificateur à télécommanda b. Amplificateur caractérisé par un premier amplificateur pour un premier signal dont le gain est variable en fonction d'un signal de commande, un second amplificateur pour un second signal dont le gain est variable en fonction d'un signal de commande, un amplificateur différentiel donnant un signal de commande pour équilibrer le gain entre le premier et le second amplificateurs ainsi qu'un amplificateur en parallèle sur l'amplificateur différentiel pour commander l'amplitude du signal de commande du premier et du second amplificateurs pour que le signal de commande règle le gain des deux amplificateurs et l'équilibre entre les gains.
FR7805116A 1977-03-10 1978-02-22 Amplificateur a telecommande Expired FR2383551B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/776,332 US4070633A (en) 1977-03-10 1977-03-10 Remote controlled amplifier

Publications (2)

Publication Number Publication Date
FR2383551A1 true FR2383551A1 (fr) 1978-10-06
FR2383551B1 FR2383551B1 (fr) 1985-08-30

Family

ID=25107091

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7805116A Expired FR2383551B1 (fr) 1977-03-10 1978-02-22 Amplificateur a telecommande

Country Status (5)

Country Link
US (1) US4070633A (fr)
JP (2) JPS53112649A (fr)
DE (1) DE2808027A1 (fr)
FR (1) FR2383551B1 (fr)
GB (1) GB1551026A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5754076A (en) * 1993-12-13 1998-05-19 Nec Corporation Differential circuit having a variable current circuit for producing an exponential or a square transfer characteristic
US4152664A (en) * 1978-02-03 1979-05-01 Motorola, Inc. Constant power balance control and method
FR2465369A1 (fr) * 1979-09-13 1981-03-20 Thomson Csf Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur
US4859961A (en) * 1988-12-19 1989-08-22 Triouint Semiconductor, Inc. Wide bandwidth push-pull parallel amplifier
US6888406B2 (en) * 2002-08-12 2005-05-03 Microtune (Texas), L.P. Highly linear variable gain amplifier

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870964A (en) * 1973-07-16 1975-03-11 Nat Semiconductor Corp Sound volume control circuit with sound level output linearly related to volume control potentiometer setting
US3875334A (en) * 1973-06-19 1975-04-01 Motorola Inc Multi-channel control circuit with D-C operated control devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1286127B (de) * 1967-05-10 1969-01-02 Fernseh Gmbh Schaltungsanordnung zur gleichlaufenden AEnderung der Verstaerkung mehrerer Verstaerker fuer elektrische Signale
US3725583A (en) * 1970-07-20 1973-04-03 Motorola Inc Volume and tone control for multi-channel audio systems
JPS5244501B2 (fr) * 1972-03-24 1977-11-08

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3875334A (en) * 1973-06-19 1975-04-01 Motorola Inc Multi-channel control circuit with D-C operated control devices
US3870964A (en) * 1973-07-16 1975-03-11 Nat Semiconductor Corp Sound volume control circuit with sound level output linearly related to volume control potentiometer setting

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON BROADCAST AND TELEVISION RECEIVERS, volume BTR-20 no. 1, février 1974, NEW YORK (US), J.E. HANNA: 'An integrated quadraphonic DC volume control', pages 15 - 31 *

Also Published As

Publication number Publication date
JPS53112649A (en) 1978-10-02
JPS60103926U (ja) 1985-07-16
US4070633A (en) 1978-01-24
GB1551026A (en) 1979-08-22
JPS6218980Y2 (fr) 1987-05-15
DE2808027A1 (de) 1978-09-21
FR2383551B1 (fr) 1985-08-30

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Legal Events

Date Code Title Description
ST Notification of lapse