SE448801B - Forsterkare med styrd forsterkning och variabel emitterdegeneration - Google Patents

Forsterkare med styrd forsterkning och variabel emitterdegeneration

Info

Publication number
SE448801B
SE448801B SE8102482A SE8102482A SE448801B SE 448801 B SE448801 B SE 448801B SE 8102482 A SE8102482 A SE 8102482A SE 8102482 A SE8102482 A SE 8102482A SE 448801 B SE448801 B SE 448801B
Authority
SE
Sweden
Prior art keywords
amplifier
gain control
transistor
current
emitter
Prior art date
Application number
SE8102482A
Other languages
English (en)
Swedish (sv)
Other versions
SE8102482L (sv
Inventor
J R Harford
Original Assignee
Rca 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 Rca Corp filed Critical Rca Corp
Publication of SE8102482L publication Critical patent/SE8102482L/
Publication of SE448801B publication Critical patent/SE448801B/sv

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/0082—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using bipolar transistor-type devices

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
SE8102482A 1980-04-23 1981-04-16 Forsterkare med styrd forsterkning och variabel emitterdegeneration SE448801B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/143,035 US4345214A (en) 1980-04-23 1980-04-23 Variable emitter degeneration gain-controlled amplifier

Publications (2)

Publication Number Publication Date
SE8102482L SE8102482L (sv) 1981-10-24
SE448801B true SE448801B (sv) 1987-03-16

Family

ID=22502323

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8102482A SE448801B (sv) 1980-04-23 1981-04-16 Forsterkare med styrd forsterkning och variabel emitterdegeneration

Country Status (23)

Country Link
US (1) US4345214A (fi)
JP (1) JPS56168415A (fi)
KR (1) KR850000733B1 (fi)
AR (1) AR231889A1 (fi)
AT (1) AT383236B (fi)
AU (1) AU542842B2 (fi)
BE (1) BE888511A (fi)
CA (1) CA1170731A (fi)
DD (1) DD158458A5 (fi)
DE (1) DE3116228C2 (fi)
DK (1) DK157966C (fi)
ES (1) ES501552A0 (fi)
FI (1) FI74367C (fi)
FR (1) FR2481541B1 (fi)
GB (1) GB2074410B (fi)
IT (1) IT1194044B (fi)
NL (1) NL190681C (fi)
NZ (1) NZ196874A (fi)
PL (1) PL135040B1 (fi)
PT (1) PT72855B (fi)
SE (1) SE448801B (fi)
SU (1) SU1268118A3 (fi)
ZA (1) ZA812598B (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5952874A (ja) * 1982-09-20 1984-03-27 Toshiba Corp 利得制御回路装置
JP3935948B2 (ja) * 1996-05-09 2007-06-27 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 可制御相互コンダクタンスを有する縮退差動対
JP4054716B2 (ja) * 2003-05-16 2008-03-05 沖電気工業株式会社 可変ゲインアンプ及びａｍ変調信号受信回路及び検波回路
US8611836B2 (en) * 2010-08-25 2013-12-17 Skyworks Solutions, Inc. Amplifier gain adjustment in response to reduced supply voltage
RU2719419C1 (ru) * 2019-12-16 2020-04-17 Открытое акционерное общество "Межгосударственная Корпорация Развития" (ОАО"Межгосударственная Корпорация Развития") Способ автоматической регулировки усиления и устройство его реализующее

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002090A (en) 1958-08-27 1961-09-26 Hazeltine Research Inc Automatic-gain-control system
DE1247405B (de) 1960-06-09 1967-08-17 Telefunken Patent In einem weiten Bereich regelbarer einstufiger Transistorverstaerker
DE1285547B (de) * 1965-04-17 1968-12-19 Te Ka De Fernmeldeapp Gmbh Verfahren zur automatischen Verstaerkungsregelung einer gegengekoppelten Transistor-Verstaerkerstufe in Emitterschaltung
DE1943788A1 (de) * 1969-08-28 1971-03-04 Siemens Ag Schaltungsanordnung fuer eine integrierte Verstaerkerstufe mit gesteuerter Gegenkopplung
US3641450A (en) * 1970-12-15 1972-02-08 Motorola Inc Gain controlled differential amplifier circuit
US3700937A (en) * 1971-07-01 1972-10-24 Branson Instr Submersible ultrasonic transducer assembly
FR2204333A5 (fi) * 1972-10-20 1974-05-17 Thomson Csf
DE2262089C3 (de) 1972-12-19 1975-10-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur elektronischen Frequenzbeeinflussung, insbesondere elektronischer Klangeinsteller
JPS5625815B2 (fi) * 1974-02-14 1981-06-15
NL161318C (nl) 1974-06-17 1980-01-15 Philips Nv Symmetrische inrichting voor het vormen van een regel- bare wisselstroomweerstand.
US4131809A (en) * 1974-06-17 1978-12-26 U.S. Philips Corporation Symmetrical arrangement for forming a variable alternating-current resistance
DE2804142C3 (de) * 1978-01-31 1982-02-11 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zur Kompensation von Verlustströmen, die in einem zur Verstärkungsregelung von integrierten, breitbandigen Differenzverstärkern verwendeten dynamischen Widerstand durch parasitäre Transistoren bedingt sind
US4267518A (en) * 1979-09-13 1981-05-12 Sperry Corporation Gain controllable amplifier stage
US4344043A (en) * 1980-04-23 1982-08-10 Rca Corporation Variable load impedance gain-controlled amplifier

Also Published As

Publication number Publication date
FI74367B (fi) 1987-09-30
ATA182481A (de) 1986-10-15
DK157966C (da) 1990-08-13
PL135040B1 (en) 1985-09-30
FR2481541B1 (fr) 1987-03-20
DK179581A (da) 1981-10-24
FI811188L (fi) 1981-10-24
JPH0121643B2 (fi) 1989-04-21
DK157966B (da) 1990-03-05
KR850000733B1 (ko) 1985-05-23
SE8102482L (sv) 1981-10-24
NZ196874A (en) 1985-02-28
DE3116228C2 (de) 1987-05-14
PT72855B (en) 1982-04-02
JPS56168415A (en) 1981-12-24
IT8120925A0 (it) 1981-04-03
DD158458A5 (de) 1983-01-12
CA1170731A (en) 1984-07-10
KR830005762A (ko) 1983-09-09
US4345214A (en) 1982-08-17
ES8206117A1 (es) 1982-06-16
PL230736A1 (fi) 1981-12-23
NL190681B (nl) 1994-01-17
NL190681C (nl) 1994-06-16
AU542842B2 (en) 1985-03-21
GB2074410A (en) 1981-10-28
GB2074410B (en) 1984-07-25
AR231889A1 (es) 1985-03-29
SU1268118A3 (ru) 1986-10-30
AU6963481A (en) 1981-10-29
PT72855A (en) 1981-05-01
ES501552A0 (es) 1982-06-16
ZA812598B (en) 1982-04-28
IT1194044B (it) 1988-08-31
DE3116228A1 (de) 1982-03-25
NL8101991A (nl) 1981-11-16
BE888511A (fr) 1981-08-17
FI74367C (fi) 1988-01-11
FR2481541A1 (fr) 1981-10-30
AT383236B (de) 1987-06-10

Similar Documents

Publication Publication Date Title
US6429700B1 (en) Driver circuit with output common mode voltage control
US3512096A (en) Transistor circuit having stabilized output d.c. level
US4586000A (en) Transformerless current balanced amplifier
US3497824A (en) Differential amplifier
EP0463857B1 (en) Emitter-grounded amplifier circuit with bias circuit
SE452383B (sv) Forsterkare med styrd forsterkning och med variabel belastningsimpedans
US4791383A (en) High speed current amplifier buffer circuit
US4460873A (en) Active differential output direct current offset voltage compensation circuit for a differential amplifier
US5389892A (en) Input stages for high voltage operational amplifier
KR910003439B1 (ko) 이득 분배 제어용 증폭기
SE448801B (sv) Forsterkare med styrd forsterkning och variabel emitterdegeneration
US4344044A (en) Gain-controlled amplifier utilizing variable emitter degeneration and collector load impedance
GB2297447A (en) Amplifier
US4357578A (en) Complementary differential amplifier
US3421102A (en) Direct coupled temperature compensated amplifier
US3027518A (en) Automatic gain control system
US3376515A (en) Single-ended, push-pull transistor audio amplifier
US4366443A (en) Television intermediate frequency amplifier
US2898411A (en) Gain control circuit for semiconductor amplifiers
US3651420A (en) Variable gain direct coupled amplifier
US5376900A (en) Push-pull output stage for amplifier in integrated circuit form
US3460047A (en) Cascode amplifier output stage having cutoff preventing means
US6492870B2 (en) Class AB, high speed, input stage with base current compensation for fast settling time
US4112387A (en) Bias circuit
JPH04223603A (ja) 演算増幅器

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 8102482-0

Format of ref document f/p: F

NUG Patent has lapsed

Ref document number: 8102482-0

Format of ref document f/p: F