FR1209160A - Transistor amplifier with electronic amplification control - Google Patents

Transistor amplifier with electronic amplification control

Info

Publication number
FR1209160A
FR1209160A FR1209160DA FR1209160A FR 1209160 A FR1209160 A FR 1209160A FR 1209160D A FR1209160D A FR 1209160DA FR 1209160 A FR1209160 A FR 1209160A
Authority
FR
France
Prior art keywords
transistor amplifier
amplification control
electronic amplification
electronic
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
Other languages
French (fr)
Inventor
Walter Guggenbuehl
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.)
Rheinmetall Air Defence AG
Original Assignee
Contraves AG
Oerlikon Contraves AG
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 Contraves AG, Oerlikon Contraves AG filed Critical Contraves AG
Application granted granted Critical
Publication of FR1209160A publication Critical patent/FR1209160A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03F1/347—Negative-feedback-circuit arrangements with or without positive feedback using transformers
    • 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
    • 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
    • H03G3/3063—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 using at least one transistor as controlling device, the transistor being used as a variable impedance device

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
FR1209160D 1957-05-24 1958-05-23 Transistor amplifier with electronic amplification control Expired FR1209160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1209160X 1957-05-24

Publications (1)

Publication Number Publication Date
FR1209160A true FR1209160A (en) 1960-02-29

Family

ID=4563117

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1209160D Expired FR1209160A (en) 1957-05-24 1958-05-23 Transistor amplifier with electronic amplification control

Country Status (4)

Country Link
BE (1) BE567879A (en)
CH (1) CH350993A (en)
DE (1) DE1071136B (en)
FR (1) FR1209160A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL105186C (en) * 1958-12-12
DE1247405B (en) * 1960-06-09 1967-08-17 Telefunken Patent Single-stage transistor amplifier that can be regulated over a wide range
DE1132975B (en) * 1960-11-23 1962-07-12 Wolfgang Assmann G M B H Control circuit for transistorized amplifiers
DE1276737B (en) * 1966-03-01 1968-09-05 Graetz Kommanditgesellschaft Circuit arrangement for up and down regulation of a two-stage transistor amplifier
US3412340A (en) * 1966-03-03 1968-11-19 Bendix Corp Variable attenuation circuit

Also Published As

Publication number Publication date
DE1071136B (en)
CH350993A (en) 1960-12-31
BE567879A (en)

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