FR2747808B1 - Circuit de correction de la tension d'une commande automatique de gain - Google Patents

Circuit de correction de la tension d'une commande automatique de gain

Info

Publication number
FR2747808B1
FR2747808B1 FR9705015A FR9705015A FR2747808B1 FR 2747808 B1 FR2747808 B1 FR 2747808B1 FR 9705015 A FR9705015 A FR 9705015A FR 9705015 A FR9705015 A FR 9705015A FR 2747808 B1 FR2747808 B1 FR 2747808B1
Authority
FR
France
Prior art keywords
gain control
correction circuit
automatic gain
voltage correction
voltage
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
FR9705015A
Other languages
English (en)
Other versions
FR2747808A1 (fr
Inventor
Sadao Agarashi
Kazuharu Aoki
Satoshi Urabe
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.)
Alps Alpine Co Ltd
Original Assignee
Alps Electric Co Ltd
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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of FR2747808A1 publication Critical patent/FR2747808A1/fr
Application granted granted Critical
Publication of FR2747808B1 publication Critical patent/FR2747808B1/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G1/00—Details of arrangements for controlling amplification
    • H03G1/04—Modifications of control circuit to reduce distortion caused by control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
FR9705015A 1996-04-23 1997-04-23 Circuit de correction de la tension d'une commande automatique de gain Expired - Lifetime FR2747808B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10130696A JP3479408B2 (ja) 1996-04-23 1996-04-23 Ａｇｃ電圧補正回路

Publications (2)

Publication Number Publication Date
FR2747808A1 FR2747808A1 (fr) 1997-10-24
FR2747808B1 true FR2747808B1 (fr) 2001-04-06

Family

ID=14297134

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9705015A Expired - Lifetime FR2747808B1 (fr) 1996-04-23 1997-04-23 Circuit de correction de la tension d'une commande automatique de gain

Country Status (8)

Country Link
US (1) US5900782A (fr)
JP (1) JP3479408B2 (fr)
KR (1) KR100247471B1 (fr)
CN (1) CN1073761C (fr)
DE (1) DE19716878B4 (fr)
FR (1) FR2747808B1 (fr)
GB (1) GB2312575B (fr)
SE (1) SE520849C2 (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6369938B1 (en) 1996-05-28 2002-04-09 Fujitsu Limited Multi-wavelength light amplifier
DE19806394C1 (de) * 1998-02-17 1999-08-26 Bosch Gmbh Robert Schaltungsanordnung zur Verstärkung eines Differenz-Spannungssignals
US6603596B2 (en) 1998-03-19 2003-08-05 Fujitsu Limited Gain and signal level adjustments of cascaded optical amplifiers
JP3469486B2 (ja) * 1998-12-25 2003-11-25 株式会社東芝 可変利得回路
US6184723B1 (en) * 1999-03-03 2001-02-06 Texas Instruments Incorporated Direct voltage to PTAT current converter for multiple gain control slope for wide dynamic range VGA
JP2001127701A (ja) 1999-10-28 2001-05-11 Hitachi Ltd 電力増幅器モジュール
GB2357913A (en) * 1999-12-24 2001-07-04 Ericsson Telefon Ab L M Conditioning a gain control signal so that an output is dB linear
JP2001196872A (ja) * 2000-01-17 2001-07-19 Sony Corp 利得制御回路およびこれを用いた無線通信装置
EP1134891A1 (fr) * 2000-03-06 2001-09-19 Infineon Technologies AG Circuit pour l'ajustement du point de fonctionnement d'un transistor haute fréquence et circuit amplificateur
JP4091410B2 (ja) * 2002-12-05 2008-05-28 富士通株式会社 半導体集積回路
US7026874B2 (en) * 2003-02-24 2006-04-11 Nokia Corporation Methods and apparatus for improving the operation of a variable gain amplifier (VGA)
US6819183B1 (en) * 2003-05-23 2004-11-16 Qualcomm, Incorporated Temperature and process compensation of MOSFET operating in sub-threshold mode
US8098100B2 (en) * 2007-03-15 2012-01-17 Mediatek Inc. Variable gain amplifiers
JP2009066257A (ja) 2007-09-14 2009-04-02 Fujifilm Corp 放射線画像撮影装置
DE102013104142B4 (de) * 2013-04-24 2023-06-15 Infineon Technologies Ag Chipkarte
KR102441469B1 (ko) * 2017-11-13 2022-09-06 주식회사 엘지에너지솔루션 배터리 충전 방법 및 배터리 충전 장치
CN113253360A (zh) * 2020-12-31 2021-08-13 深圳怡化电脑股份有限公司 一种模拟式光电传感器校正方法和装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5330850A (en) * 1976-09-03 1978-03-23 Hitachi Ltd Gain control circuit
JP2525346B2 (ja) * 1983-10-27 1996-08-21 富士通株式会社 定電流源回路を有する差動増幅回路
JPH0666614B2 (ja) * 1988-11-18 1994-08-24 三洋電機株式会社 利得制御増幅回路
US5030924A (en) * 1989-03-30 1991-07-09 Silicon Systems, Inc. Temperature compensated exponential gain control circuit
US4963836A (en) * 1989-06-23 1990-10-16 Digital Equipment Corporation Wide range high stability variable gain amplifier
US5162678A (en) * 1990-09-18 1992-11-10 Silicon Systems, Inc. Temperature compensation control circuit for exponential gain function of an agc amplifier
EP0490016B1 (fr) * 1990-12-12 1995-08-09 STMicroelectronics S.r.l. Circuit intégré pour engendrer un courant indépendant de la température, proportionnel à la différence de tension entre un signal et une tension de référence
US5200654A (en) * 1991-11-20 1993-04-06 National Semiconductor Corporation Trim correction circuit with temperature coefficient compensation
JP3061674B2 (ja) * 1992-01-23 2000-07-10 アルプス電気株式会社 利得制御回路
DE4216646C1 (de) * 1992-05-20 1994-01-27 Ant Nachrichtentech Anordnung zur Bereitstellung eines Stellsignals für ein Dämpfungsglied
GB2280073B (en) * 1993-06-30 1996-11-27 Northern Telecom Ltd Amplifier circuit
US5381148A (en) * 1993-07-12 1995-01-10 Analog Devices, Inc. Method and apparatus for calibrating a gain control circuit
CA2280073C (fr) * 1999-06-15 2003-12-30 The Christian Church Community Trust Garnitures de jardiniere

Also Published As

Publication number Publication date
JPH09289424A (ja) 1997-11-04
KR19980077630A (ko) 1998-11-16
SE520849C2 (sv) 2003-09-02
CN1176529A (zh) 1998-03-18
GB9707685D0 (en) 1997-06-04
DE19716878A1 (de) 1997-11-13
SE9701480D0 (sv) 1997-04-21
FR2747808A1 (fr) 1997-10-24
DE19716878B4 (de) 2006-08-10
US5900782A (en) 1999-05-04
KR100247471B1 (ko) 2000-03-15
CN1073761C (zh) 2001-10-24
GB2312575B (en) 2000-08-30
GB2312575A (en) 1997-10-29
JP3479408B2 (ja) 2003-12-15
SE9701480L (sv) 1997-10-24

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