GB1474205A - Differential amplifiers with gain control means - Google Patents

Differential amplifiers with gain control means

Info

Publication number
GB1474205A
GB1474205A GB3457374A GB3457374A GB1474205A GB 1474205 A GB1474205 A GB 1474205A GB 3457374 A GB3457374 A GB 3457374A GB 3457374 A GB3457374 A GB 3457374A GB 1474205 A GB1474205 A GB 1474205A
Authority
GB
United Kingdom
Prior art keywords
gain control
transistor
control means
differential amplifiers
aug
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
GB3457374A
Other languages
English (en)
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 GB1474205A publication Critical patent/GB1474205A/en
Expired 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
    • 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
    • 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 in emitter-coupled or cascode amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3052—Automatic control in amplifiers having semiconductor devices in bandpass amplifiers (H.F. or I.F.) or in frequency-changers used in a (super)heterodyne receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
  • Processing Of Color Television Signals (AREA)
GB3457374A 1973-08-08 1974-08-06 Differential amplifiers with gain control means Expired GB1474205A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1973093337U JPS5329082Y2 (enExample) 1973-08-08 1973-08-08

Publications (1)

Publication Number Publication Date
GB1474205A true GB1474205A (en) 1977-05-18

Family

ID=14079440

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3457374A Expired GB1474205A (en) 1973-08-08 1974-08-06 Differential amplifiers with gain control means

Country Status (8)

Country Link
US (1) US3900801A (enExample)
JP (1) JPS5329082Y2 (enExample)
CA (1) CA1022631A (enExample)
DE (1) DE2438219A1 (enExample)
FR (1) FR2240571B1 (enExample)
GB (1) GB1474205A (enExample)
IT (1) IT1019814B (enExample)
NL (1) NL7410580A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58685B2 (ja) * 1975-03-05 1983-01-07 株式会社東芝 Ａｇｃ カイロ
DE2908741C2 (de) * 1979-03-06 1983-07-14 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt HF-Breitbandverstärker
US4528516A (en) * 1983-08-01 1985-07-09 Tektronix, Inc. Differential amplifier with dynamic thermal balancing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538448A (en) * 1968-01-17 1970-11-03 Rca Corp Gain controlled amplifier
US3641450A (en) * 1970-12-15 1972-02-08 Motorola Inc Gain controlled differential amplifier circuit

Also Published As

Publication number Publication date
US3900801A (en) 1975-08-19
IT1019814B (it) 1977-11-30
FR2240571B1 (enExample) 1978-12-29
DE2438219A1 (de) 1975-02-20
CA1022631A (en) 1977-12-13
JPS5040145U (enExample) 1975-04-24
JPS5329082Y2 (enExample) 1978-07-21
FR2240571A1 (enExample) 1975-03-07
NL7410580A (nl) 1975-02-11

Similar Documents

Publication Publication Date Title
GB1434971A (en) Gain control circuit
GB1382483A (en) Electronic signal amplifier
GB1364233A (en) High performance solid state amplifier
ES402652A1 (es) Un circuito de amplificador.
GB1271355A (en) Transistor variable gain circuits
GB1181124A (en) Gain Controlled Amplifier
GB1473299A (en) Feedback amplifier
ES397069A1 (es) Perfeccionamientos en detectores sincronos.
GB1469990A (en) Gain control circuit
GB1459773A (en) Gain control circuit
GB1288880A (enExample)
GB1460569A (en) Amplifier having constant current consumption
GB1139744A (en) Improvements in or relating to differential amplifiers employing transistors
GB1480389A (en) Amplifier circuits
GB1198100A (en) Signal Amplifying Arrangement
GB899905A (en) Deflection amplifier
GB1372794A (en) Automatic gain control circuits
GB763819A (en) Improvements in or relating to transistor amplifiers
GB876994A (en) Improvements in or relating to negative feedback circuits
GB1070661A (en) Automatic gain control arrangements in transistor amplifiers
GB1111571A (en) Differential current amplifier
GB1459774A (en) Gain control circuit
GB1143461A (en) Automatic gain control system
GB1276752A (en) A variable attenuation amplifier
GB1044461A (en) Improvements in and relating to transistor amplifiers

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee