ES2121853T3 - Circuito para amplificador regulable. - Google Patents

Circuito para amplificador regulable.

Info

Publication number
ES2121853T3
ES2121853T3 ES92909402T ES92909402T ES2121853T3 ES 2121853 T3 ES2121853 T3 ES 2121853T3 ES 92909402 T ES92909402 T ES 92909402T ES 92909402 T ES92909402 T ES 92909402T ES 2121853 T3 ES2121853 T3 ES 2121853T3
Authority
ES
Spain
Prior art keywords
amplifier
control
regulation
individual
networks
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
ES92909402T
Other languages
English (en)
Other versions
ES2121853T7 (es
Inventor
Sossio Itri
Martin Rieger
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6430329&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2121853(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Publication of ES2121853T3 publication Critical patent/ES2121853T3/es
Application granted granted Critical
Publication of ES2121853T7 publication Critical patent/ES2121853T7/es
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/4508—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using bipolar transistors as the active amplifying circuit
    • H03F3/45098—PI types
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45048—Calibrating and standardising a dif amp
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45051—Two or more differential amplifiers cascade coupled
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45466—Indexing scheme relating to differential amplifiers the CSC being controlled, e.g. by a signal derived from a non specified place in the dif amp circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45471—Indexing scheme relating to differential amplifiers the CSC comprising one or more extra current sources
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45506—Indexing scheme relating to differential amplifiers the CSC comprising only one switch

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Networks Using Active Elements (AREA)
  • Microwave Amplifiers (AREA)

Abstract

SON CONOCIDOS LOS AMPLIFICADORES CONTROLABLES PARA LA REGULACION POR EJEMPLO DE LA AMPLITUD DE SEÑALES ZF. UN AMPLIFICADOR DE ESTE TIPO ESTA CONTENIDO POR EJEMPLO EN EL CIRCUITO INTEGRADO DEL TIPO TDA 4443. SI EMBARGO, ESTOS AMPLIFICADORES CONOCIDOS NO TIENEN UN BAJO NIVEL DE RUIDO O TIENEN LINEARIDAD LIMITADA O SU CARACTERISTICA DE REGULACION NO ES DB LINEAL. PARA MEJORAR LAS CARACTERISTICAS DE REGULACION, LA RED DE REALIMENTACION NEGATIVA EN UN AMPLIFICADOR (Q21, Q22) DIFERENCIAL ESTA SUBDIVIDIDA EN REDES INDIVIDUALES EQUIPADAS CADA UNA DE ELLAS CON SU PROPIA CORRIENTE (I1...I3) DE CONTROL. PARA REDUCIR LA DISTORSION CAUSADA POR LAS SECCIONES NO LINEALES CONTENIDAS EN LAS REDES O PARA INCREMENTAR LA RESISTENCIA DE INTERMODULACION, LAS CORRIENTES (I1...I3) DE CONTROL INDIVIDUAL SON REDUCIDAS CON UN INCREMENTO DE VOLTAJE DE ENTRADA. PARA OBTENER UNA CARACTERISTICA DE REGULACION LINEAL DB, LA CORRIENTE DE CONTROL PUEDE INCLUIR POR EJEMPLO CURVAS DE CARACTERISTICAS HIPERBOLICATANGENCIALES. ADICIONALMENTE, UN AMPLIFICADOR DE ESTE TIPO TIENE UN NIVEL DE RUIDO RELATIVAMENTE BAJO.
ES92909402T 1991-04-25 1992-04-25 Circuito para amplificador regulable. Active ES2121853T7 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4113498A DE4113498C1 (es) 1991-04-25 1991-04-25
DE4113498 1991-04-25

Publications (2)

Publication Number Publication Date
ES2121853T3 true ES2121853T3 (es) 1998-12-16
ES2121853T7 ES2121853T7 (es) 2009-06-18

Family

ID=6430329

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92909402T Active ES2121853T7 (es) 1991-04-25 1992-04-25 Circuito para amplificador regulable.

Country Status (13)

Country Link
US (1) US5389893A (es)
EP (2) EP0581835B3 (es)
CN (1) CN1028395C (es)
AT (1) ATE170027T1 (es)
DE (2) DE4113498C1 (es)
ES (1) ES2121853T7 (es)
HU (1) HU218637B (es)
MX (1) MX9201939A (es)
MY (1) MY110046A (es)
SG (1) SG46721A1 (es)
TR (1) TR25846A (es)
WO (1) WO1992020148A1 (es)
ZA (1) ZA922984B (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329896A1 (de) * 1993-09-04 1995-03-09 Thomson Brandt Gmbh Verstärkerstufe mit einer dB-linearen Ausgangsspannung
EP0759230B1 (en) * 1995-03-01 2004-12-22 Lattice Semiconductor Corporation Cmos programmable resistor-based transconductor
US5574678A (en) * 1995-03-01 1996-11-12 Lattice Semiconductor Corp. Continuous time programmable analog block architecture
JPH10505988A (ja) * 1995-03-01 1998-06-09 ラティス セミコンダクタ コーポレイション 安定補償用能動抵抗
FI97656C (fi) * 1995-04-05 1997-01-27 Nokia Telecommunications Oy Linearisointikytkentä
WO1997049178A1 (en) * 1996-06-21 1997-12-24 Philips Electronics N.V. Variable-gain amplifier with pseudo-logarithmic gain control
FI106413B (fi) * 1996-07-11 2001-01-31 Nokia Mobile Phones Ltd Lineaarisen tehovahvistimen tehonsäätöpiiri
FR2765750A1 (fr) * 1997-07-02 1999-01-08 Trt Lucent Technologies Dispositif de reception pour signaux hyperfrequence
US6084472A (en) * 1997-12-15 2000-07-04 Analog Devices, Inc. Multi-tanh triplet with optimal biasing
US6084471A (en) * 1997-12-19 2000-07-04 Nokia Mobile Phones Soft-limiting control circuit for variable gain amplifiers
US6316997B1 (en) * 2000-03-23 2001-11-13 International Business Machines Corporation CMOS amplifiers with multiple gain setting control
US6333672B1 (en) * 2000-10-02 2001-12-25 Semiconductor Components Industries Llc Differential logic circuit and method of use
US7265623B2 (en) * 2004-08-03 2007-09-04 Scintera Networks, Inc. Differential amplifier having independently tunable base gain, peak gain and boost frequency, and uses of same
CN104617899A (zh) * 2015-03-06 2015-05-13 上海新微技术研发中心有限公司 差分放大器和电子设备
RU2658818C1 (ru) * 2017-05-05 2018-06-22 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Дифференциальный преобразователь "напряжение-ток" с широким диапазоном линейной работы

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4429416A (en) * 1982-03-26 1984-01-31 National Semiconductor Corporation Multistage cascade/cascode limiting IF amplifier and meter circuit
GB2135847A (en) * 1983-02-14 1984-09-05 Philips Electronic Associated Amplifier arrangement
DE3522416A1 (de) * 1985-06-22 1987-01-02 Standard Elektrik Lorenz Ag Regelbare breitbandverstaerkerschaltung
US4833422A (en) * 1987-09-24 1989-05-23 Burr-Brown Corporation Programmable gain instrumentation amplifier
US4835488A (en) * 1988-01-13 1989-05-30 Tektronix, Inc. Wideband linearized emitter feedback amplifier
USH965H (en) * 1990-01-26 1991-09-03 American Telephone And Telegraph Company Differential amplifier with digitally controlled gain
US5313172A (en) * 1992-12-11 1994-05-17 Rockwell International Corporation Digitally switched gain amplifier for digitally controlled automatic gain control amplifier applications

Also Published As

Publication number Publication date
MY110046A (en) 1997-12-31
EP0510704A1 (de) 1992-10-28
ZA922984B (en) 1993-01-27
ES2121853T7 (es) 2009-06-18
SG46721A1 (en) 1998-02-20
ATE170027T1 (de) 1998-09-15
WO1992020148A1 (de) 1992-11-12
EP0581835B1 (de) 1998-08-19
CN1067535A (zh) 1992-12-30
HUT66223A (en) 1994-10-28
EP0581835B3 (de) 2008-12-03
CN1028395C (zh) 1995-05-10
DE4113498C1 (es) 1992-04-30
MX9201939A (es) 1992-11-01
EP0581835A1 (de) 1994-02-09
US5389893A (en) 1995-02-14
DE59209467D1 (de) 1998-09-24
HU218637B (hu) 2000-10-28
TR25846A (tr) 1993-09-01
HU9302723D0 (en) 1993-12-28

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