DE2438219A1 - Differenzverstaerker mit verstaerkungsregelung - Google Patents

Differenzverstaerker mit verstaerkungsregelung

Info

Publication number
DE2438219A1
DE2438219A1 DE2438219A DE2438219A DE2438219A1 DE 2438219 A1 DE2438219 A1 DE 2438219A1 DE 2438219 A DE2438219 A DE 2438219A DE 2438219 A DE2438219 A DE 2438219A DE 2438219 A1 DE2438219 A1 DE 2438219A1
Authority
DE
Germany
Prior art keywords
control
transistor
signal
differential amplifier
base
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.)
Withdrawn
Application number
DE2438219A
Other languages
German (de)
English (en)
Inventor
Hiroshi Furuno
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 DE2438219A1 publication Critical patent/DE2438219A1/de
Withdrawn legal-status Critical Current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)
DE2438219A 1973-08-08 1974-08-08 Differenzverstaerker mit verstaerkungsregelung Withdrawn DE2438219A1 (de)

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
DE2438219A1 true DE2438219A1 (de) 1975-02-20

Family

ID=14079440

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2438219A Withdrawn DE2438219A1 (de) 1973-08-08 1974-08-08 Differenzverstaerker mit verstaerkungsregelung

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
CA1022631A (en) 1977-12-13
JPS5040145U (enExample) 1975-04-24
GB1474205A (en) 1977-05-18
JPS5329082Y2 (enExample) 1978-07-21
FR2240571A1 (enExample) 1975-03-07
NL7410580A (nl) 1975-02-11

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8139 Disposal/non-payment of the annual fee