FR2633117B1 - Circuit de commande automatique de gain - Google Patents

Circuit de commande automatique de gain

Info

Publication number
FR2633117B1
FR2633117B1 FR898908066A FR8908066A FR2633117B1 FR 2633117 B1 FR2633117 B1 FR 2633117B1 FR 898908066 A FR898908066 A FR 898908066A FR 8908066 A FR8908066 A FR 8908066A FR 2633117 B1 FR2633117 B1 FR 2633117B1
Authority
FR
France
Prior art keywords
control circuit
gain control
automatic gain
automatic
circuit
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.)
Expired - Lifetime
Application number
FR898908066A
Other languages
English (en)
Other versions
FR2633117A1 (fr
Inventor
Mitsuru Sato
Tetsuya Iizuka
Kiyoshi Furuya
Norio Shoji
Masato Sekine
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.)
Sony Corp
Original Assignee
Sony 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.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of FR2633117A1 publication Critical patent/FR2633117A1/fr
Application granted granted Critical
Publication of FR2633117B1 publication Critical patent/FR2633117B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR898908066A 1988-06-17 1989-06-16 Circuit de commande automatique de gain Expired - Lifetime FR2633117B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63149436A JP2733962B2 (ja) 1988-06-17 1988-06-17 利得制御増幅器

Publications (2)

Publication Number Publication Date
FR2633117A1 FR2633117A1 (fr) 1989-12-22
FR2633117B1 true FR2633117B1 (fr) 1992-05-29

Family

ID=15475075

Family Applications (1)

Application Number Title Priority Date Filing Date
FR898908066A Expired - Lifetime FR2633117B1 (fr) 1988-06-17 1989-06-16 Circuit de commande automatique de gain

Country Status (6)

Country Link
US (1) US4928074A (fr)
JP (1) JP2733962B2 (fr)
KR (1) KR970008790B1 (fr)
DE (1) DE3919582A1 (fr)
FR (1) FR2633117B1 (fr)
GB (1) GB2219898B (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5030924A (en) * 1989-03-30 1991-07-09 Silicon Systems, Inc. Temperature compensated exponential gain control circuit
US5131046A (en) * 1989-11-03 1992-07-14 Etymotic Research Inc. High fidelity hearing aid amplifier
US5144675A (en) * 1990-03-30 1992-09-01 Etymotic Research, Inc. Variable recovery time circuit for use with wide dynamic range automatic gain control for hearing aid
US5162678A (en) * 1990-09-18 1992-11-10 Silicon Systems, Inc. Temperature compensation control circuit for exponential gain function of an agc amplifier
DE4210215C2 (de) * 1991-06-04 1998-07-30 Telefunken Microelectron Differenzverstärkeranordnung
US5184088A (en) * 1992-06-10 1993-02-02 Samsung Electronics Co., Ltd. Controlled-gain transistor amplifier without D-C shift or signal phase reversal in load current
GB2280073B (en) * 1993-06-30 1996-11-27 Northern Telecom Ltd Amplifier circuit
US6091275A (en) * 1998-06-02 2000-07-18 Maxim Integrated Products, Inc. Linear quad variable gain amplifier and method for implementing same
JP4073152B2 (ja) 2000-06-30 2008-04-09 富士通株式会社 利得可変増幅器
US6617910B2 (en) * 2001-08-10 2003-09-09 Ronald Quan Low noise analog multiplier utilizing nonlinear local feedback elements

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE335156B (fr) * 1968-02-16 1971-05-17 Lkb Produkter Ab
GB1590826A (en) * 1976-09-21 1981-06-10 Post Office Level stabilisers
US4198603A (en) * 1978-09-22 1980-04-15 General Motors Corporation Radio receiver audio attenuator
DE3575506D1 (de) * 1984-06-07 1990-02-22 Siemens Ag Differenzverstaerkerschaltung.
US4651210A (en) * 1984-12-24 1987-03-17 Rca Corporation Adjustable gamma controller
JPH0738550B2 (ja) * 1986-01-27 1995-04-26 ソニー株式会社 利得制御回路
JPH0628325B2 (ja) * 1986-06-18 1994-04-13 株式会社日立製作所 自動利得制御増幅器

Also Published As

Publication number Publication date
KR970008790B1 (en) 1997-05-29
GB2219898B (en) 1992-11-11
GB8913861D0 (en) 1989-08-02
KR900001117A (ko) 1990-01-31
GB2219898A (en) 1989-12-20
JP2733962B2 (ja) 1998-03-30
US4928074A (en) 1990-05-22
DE3919582A1 (de) 1989-12-21
FR2633117A1 (fr) 1989-12-22
JPH01317011A (ja) 1989-12-21

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070228