DE969352C - Transistorverstaerker mit regelbarer Verstaerkung - Google Patents

Transistorverstaerker mit regelbarer Verstaerkung

Info

Publication number
DE969352C
DE969352C DEN10618A DEN0010618A DE969352C DE 969352 C DE969352 C DE 969352C DE N10618 A DEN10618 A DE N10618A DE N0010618 A DEN0010618 A DE N0010618A DE 969352 C DE969352 C DE 969352C
Authority
DE
Germany
Prior art keywords
transistor
impedance
control current
amplifier
circuit
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
DEN10618A
Other languages
German (de)
English (en)
Inventor
Johannes Wilhelmus Ma Adrianus
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE969352C publication Critical patent/DE969352C/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/20—Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers
    • H03G9/24—Combinations of two or more types of control, e.g. gain control and tone control in frequency-selective amplifiers having semiconductor devices

Landscapes

  • Amplifiers (AREA)
DEN10618A 1954-05-11 1955-05-08 Transistorverstaerker mit regelbarer Verstaerkung Expired DE969352C (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL331070X 1954-05-11

Publications (1)

Publication Number Publication Date
DE969352C true DE969352C (de) 1958-05-22

Family

ID=19784372

Family Applications (1)

Application Number Title Priority Date Filing Date
DEN10618A Expired DE969352C (de) 1954-05-11 1955-05-08 Transistorverstaerker mit regelbarer Verstaerkung

Country Status (5)

Country Link
BE (1) BE538059A (xx)
CH (1) CH331070A (xx)
DE (1) DE969352C (xx)
GB (1) GB768987A (xx)
NL (2) NL187486B (xx)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145236B (de) * 1958-12-15 1963-03-14 Telefunken Patent Schaltungsanordnung zur selbsttaetigen Verstaerkungsregelung von Hoch- oder Zwischenfrequenzverstaerkern mit Transistoren oberhalb eines Schwellenwertes
DE1204286B (de) * 1961-03-23 1965-11-04 Telefunken Patent Selektiver regelbarer Transistorverstaerker
DE1267286B (de) * 1959-03-05 1968-05-02 Philips Nv Empfangsschaltung mit Verstaerkungsregelung
DE2259675A1 (de) * 1972-12-06 1974-06-12 Bosch Elektronik Gmbh Hochfrequenzverstaerker

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1145236B (de) * 1958-12-15 1963-03-14 Telefunken Patent Schaltungsanordnung zur selbsttaetigen Verstaerkungsregelung von Hoch- oder Zwischenfrequenzverstaerkern mit Transistoren oberhalb eines Schwellenwertes
DE1267286B (de) * 1959-03-05 1968-05-02 Philips Nv Empfangsschaltung mit Verstaerkungsregelung
DE1204286B (de) * 1961-03-23 1965-11-04 Telefunken Patent Selektiver regelbarer Transistorverstaerker
DE2259675A1 (de) * 1972-12-06 1974-06-12 Bosch Elektronik Gmbh Hochfrequenzverstaerker

Also Published As

Publication number Publication date
BE538059A (xx)
NL187486B (nl)
NL85795C (xx)
CH331070A (de) 1958-06-30
GB768987A (en) 1957-02-27

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