DE2755827A1 - Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang - Google Patents

Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang

Info

Publication number
DE2755827A1
DE2755827A1 DE19772755827 DE2755827A DE2755827A1 DE 2755827 A1 DE2755827 A1 DE 2755827A1 DE 19772755827 DE19772755827 DE 19772755827 DE 2755827 A DE2755827 A DE 2755827A DE 2755827 A1 DE2755827 A1 DE 2755827A1
Authority
DE
Germany
Prior art keywords
transistor
emitter
transistors
common
resistor
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Withdrawn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
DE19772755827
Other languages
German (de)
English (en)
Inventor
Wilfried Ing Grad Aschermann
Gerhard Ing Grad Jonkuhn
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.)
Philips Intellectual Property and Standards GmbH
Original Assignee
Philips Patentverwaltung GmbH
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 Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Priority to DE19772755827 priority Critical patent/DE2755827A1/de
Priority to JP15382478A priority patent/JPS5489551A/ja
Priority to GB7848607A priority patent/GB2010616B/en
Priority to AT898778A priority patent/AT376078B/de
Priority to FR7835356A priority patent/FR2412200A1/fr
Publication of DE2755827A1 publication Critical patent/DE2755827A1/de
Withdrawn legal-status Critical Current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
    • H03G1/0017—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
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/14—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control
    • H03G9/16—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for gain control and tone control incorporating negative feedback

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Networks Using Active Elements (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
DE19772755827 1977-12-15 1977-12-15 Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang Withdrawn DE2755827A1 (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE19772755827 DE2755827A1 (de) 1977-12-15 1977-12-15 Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang
JP15382478A JPS5489551A (en) 1977-12-15 1978-12-14 Circuit for responding to frequency by varying according to dc control voltage
GB7848607A GB2010616B (en) 1977-12-15 1978-12-14 Circuit arrangement having a variable frequency response
AT898778A AT376078B (de) 1977-12-15 1978-12-15 Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang
FR7835356A FR2412200A1 (fr) 1977-12-15 1978-12-15 Dispositif de commutation dont la caracteristique de frequence peut etre variee a l'aide d'une tension continue de commande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772755827 DE2755827A1 (de) 1977-12-15 1977-12-15 Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang

Publications (1)

Publication Number Publication Date
DE2755827A1 true DE2755827A1 (de) 1979-06-21

Family

ID=6026151

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772755827 Withdrawn DE2755827A1 (de) 1977-12-15 1977-12-15 Schaltungsanordnung mit einem durch eine steuergleichspannung veraenderbaren frequenzgang

Country Status (5)

Country Link
JP (1) JPS5489551A (enExample)
AT (1) AT376078B (enExample)
DE (1) DE2755827A1 (enExample)
FR (1) FR2412200A1 (enExample)
GB (1) GB2010616B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026551A1 (de) * 1980-07-12 1982-02-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Verstaerkerschaltung
US4437070A (en) 1980-02-29 1984-03-13 U.S. Philips Corporation Amplifier arrangement whose overall gain is controllable by means of a control voltage
US4471320A (en) * 1981-05-27 1984-09-11 Frey Douglas R Voltage controlled element
EP0118166A1 (en) * 1983-02-07 1984-09-12 Tektronix, Inc. High frequency differential amplifier with adjustable damping factor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465369A1 (fr) * 1979-09-13 1981-03-20 Thomson Csf Circuit melangeur et circuit de commande de volume et de tonalite de signal a frequence sonore utilisant un circuit melangeur
US4563670A (en) * 1983-12-14 1986-01-07 Tektronix, Inc. High speed multiplying digital to analog converter
DE3575506D1 (de) * 1984-06-07 1990-02-22 Siemens Ag Differenzverstaerkerschaltung.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262089A1 (de) * 1972-12-19 1974-07-11 Philips Patentverwaltung Schaltungsanordnung zur elektronischen frequenzgangbeeinflussung, insbesondere elektronischer klangeinsteller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262089A1 (de) * 1972-12-19 1974-07-11 Philips Patentverwaltung Schaltungsanordnung zur elektronischen frequenzgangbeeinflussung, insbesondere elektronischer klangeinsteller

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4437070A (en) 1980-02-29 1984-03-13 U.S. Philips Corporation Amplifier arrangement whose overall gain is controllable by means of a control voltage
DE3026551A1 (de) * 1980-07-12 1982-02-04 Philips Patentverwaltung Gmbh, 2000 Hamburg Verstaerkerschaltung
US4471320A (en) * 1981-05-27 1984-09-11 Frey Douglas R Voltage controlled element
EP0118166A1 (en) * 1983-02-07 1984-09-12 Tektronix, Inc. High frequency differential amplifier with adjustable damping factor

Also Published As

Publication number Publication date
AT376078B (de) 1984-10-10
FR2412200B1 (enExample) 1984-03-23
GB2010616B (en) 1982-04-21
ATA898778A (de) 1984-02-15
FR2412200A1 (fr) 1979-07-13
JPS5489551A (en) 1979-07-16
GB2010616A (en) 1979-06-27

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Legal Events

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