FR2257173A1 - Control circuit for AGC in a power amplifier - has amplifier which is connected to an electroacoustical transducer - Google Patents

Control circuit for AGC in a power amplifier - has amplifier which is connected to an electroacoustical transducer

Info

Publication number
FR2257173A1
FR2257173A1 FR7425759A FR7425759A FR2257173A1 FR 2257173 A1 FR2257173 A1 FR 2257173A1 FR 7425759 A FR7425759 A FR 7425759A FR 7425759 A FR7425759 A FR 7425759A FR 2257173 A1 FR2257173 A1 FR 2257173A1
Authority
FR
France
Prior art keywords
amplifier
power amplifier
agc
control circuit
transducer
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
FR7425759A
Other languages
English (en)
French (fr)
Other versions
FR2257173B3 (en, 2012
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.)
MONTANARI SERGIO IT
Original Assignee
MONTANARI SERGIO IT
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 MONTANARI SERGIO IT filed Critical MONTANARI SERGIO IT
Publication of FR2257173A1 publication Critical patent/FR2257173A1/fr
Application granted granted Critical
Publication of FR2257173B3 publication Critical patent/FR2257173B3/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/301—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being continuously variable
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/46—Volume control

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Amplifiers (AREA)
  • Lasers (AREA)
FR7425759A 1974-01-08 1974-07-24 Control circuit for AGC in a power amplifier - has amplifier which is connected to an electroacoustical transducer Granted FR2257173A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT330274A IT1005264B (it) 1974-01-08 1974-01-08 Dispositivo circuitale a soglia variabile per il controllo automati co di guadagno in amplificatori di potenza

Publications (2)

Publication Number Publication Date
FR2257173A1 true FR2257173A1 (en) 1975-08-01
FR2257173B3 FR2257173B3 (en, 2012) 1977-05-20

Family

ID=11104565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7425759A Granted FR2257173A1 (en) 1974-01-08 1974-07-24 Control circuit for AGC in a power amplifier - has amplifier which is connected to an electroacoustical transducer

Country Status (4)

Country Link
DE (1) DE2435868A1 (en, 2012)
ES (1) ES429136A1 (en, 2012)
FR (1) FR2257173A1 (en, 2012)
IT (1) IT1005264B (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028521A1 (en) * 1998-11-11 2000-05-18 Sintefex Audio Lda Audio dynamic control effects synthesiser with or without analyser

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4233566A (en) * 1978-10-23 1980-11-11 Technical Audio Products Corporation Distortion free power limiting and clipping prevention circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000028521A1 (en) * 1998-11-11 2000-05-18 Sintefex Audio Lda Audio dynamic control effects synthesiser with or without analyser
US7095860B1 (en) 1998-11-11 2006-08-22 Michael Joseph Kemp Audio dynamic control effects synthesizer with or without analyzer

Also Published As

Publication number Publication date
DE2435868A1 (de) 1975-07-17
ES429136A1 (es) 1976-11-16
FR2257173B3 (en, 2012) 1977-05-20
IT1005264B (it) 1976-08-20

Similar Documents

Publication Publication Date Title
UA39094C2 (uk) Передавач (варіанти), спосіб керування підсилювачем, схема підсилення і керування насиченням підсилювача
GB1279335A (en) Sound responsive device
US4282605B1 (en) Sound reproducing with remote amplifying transducer
ES8501156A1 (es) Un dispositivo de deteccion optica de fin de cinta
FR2257173A1 (en) Control circuit for AGC in a power amplifier - has amplifier which is connected to an electroacoustical transducer
GB782337A (en) Improvements in or relating to circuit arrangements comprising a photo-transistor
AR241167A2 (es) Circuito de control de receptor acustico para ser usado con una herramienta exploradora acustica
SE8402056L (sv) Anordning for att utoka dynamikomradet i en integrerande optoelektrisk mottagare
GB1161002A (en) Improvements in and relating to Hearing Aids
JPS56145534A (en) Semiconductor laser
JPS55153495A (en) Motional feedback speaker
JPS5312321A (en) Mfb circuit
JPS56169443A (en) Detecting circuit for input signal interruption
JPS537160A (en) Amplifier
GB1040052A (en) Energy converter
JPS51132983A (en) Linear light output luminous semiconductor device
JPS5359386A (en) Linear light output emission unit
JPS5783942A (en) Analog signal transmitter
JPS564949A (en) Transmission system for previous-arrangement supervisory signal
JPS57173238A (en) Optical transmitter
JPS5450203A (en) Transmitter for optical fiber communication
JPS56119543A (en) Distortion compensating circuit
GB1210171A (en) Improvements in or relating to vocal aids
JPS6473227A (en) Light quantity detecting device
JPS5737998A (en) Microphone device