FR2423918B1 - Amplificateur - Google Patents

Amplificateur

Info

Publication number
FR2423918B1
FR2423918B1 FR7909806A FR7909806A FR2423918B1 FR 2423918 B1 FR2423918 B1 FR 2423918B1 FR 7909806 A FR7909806 A FR 7909806A FR 7909806 A FR7909806 A FR 7909806A FR 2423918 B1 FR2423918 B1 FR 2423918B1
Authority
FR
France
Prior art keywords
amplifier
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
Application number
FR7909806A
Other languages
English (en)
Other versions
FR2423918A1 (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.)
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 FR2423918A1 publication Critical patent/FR2423918A1/fr
Application granted granted Critical
Publication of FR2423918B1 publication Critical patent/FR2423918B1/fr
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • H03F3/1855—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices with junction-FET devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • 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
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/02—Manually-operated control
    • H03G3/04—Manually-operated control in untuned amplifiers
    • H03G3/10—Manually-operated control in untuned amplifiers having semiconductor devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR7909806A 1978-04-18 1979-04-18 Amplificateur Expired FR2423918B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4561878A JPS54137262A (en) 1978-04-18 1978-04-18 Gain switching type negative feedback amplifier circuit

Publications (2)

Publication Number Publication Date
FR2423918A1 FR2423918A1 (fr) 1979-11-16
FR2423918B1 true FR2423918B1 (fr) 1985-11-08

Family

ID=12724356

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7909806A Expired FR2423918B1 (fr) 1978-04-18 1979-04-18 Amplificateur

Country Status (7)

Country Link
US (1) US4274058A (fr)
JP (1) JPS54137262A (fr)
AU (1) AU525629B2 (fr)
DE (1) DE2915451A1 (fr)
FR (1) FR2423918B1 (fr)
GB (1) GB2019150B (fr)
NL (1) NL7903030A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342003A (en) * 1980-03-17 1982-07-27 Bell Telephone Laboratories, Incorporated Operational amplifier with increased settling speed
JPS5840920U (ja) * 1981-09-11 1983-03-17 ヤマハ株式会社 小信号増幅回路
CA2097109C (fr) * 1992-06-01 2000-01-11 Shozo Kokawa Affichage a cristaux liquides
AU5171000A (en) 1999-05-28 2000-12-18 Broadcom Corporation Slic architecture and interfaces

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366889A (en) * 1964-09-14 1968-01-30 Rca Corp Integrated electrical circuit
US3419809A (en) * 1967-07-17 1968-12-31 United Aircraft Corp Stable d.c. amplifier
US3740659A (en) * 1971-08-27 1973-06-19 Matsushita Electric Ind Co Ltd Ac amplifier system
US4077012A (en) * 1976-01-28 1978-02-28 Nippon Gakki Seizo Kabushiki Kaisha Amplifier devices
DE2711520C3 (de) * 1976-03-16 1979-08-02 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka (Japan) Belastungsschaltung für eine Signalquelle
US4032855A (en) * 1976-10-28 1977-06-28 Advent Corporation Phonograph preamplifier network with infrasonic cutoff response

Also Published As

Publication number Publication date
FR2423918A1 (fr) 1979-11-16
DE2915451A1 (de) 1979-10-31
JPS54137262A (en) 1979-10-24
NL7903030A (nl) 1979-10-22
GB2019150A (en) 1979-10-24
JPS6127927B2 (fr) 1986-06-27
AU4614279A (en) 1979-10-25
US4274058A (en) 1981-06-16
AU525629B2 (en) 1982-11-18
GB2019150B (en) 1982-07-28

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Legal Events

Date Code Title Description
ST Notification of lapse