AT376078B - CIRCUIT ARRANGEMENT WITH A FREQUENCY GEAR CHANGEABLE BY A DC CONTROL VOLTAGE - Google Patents

CIRCUIT ARRANGEMENT WITH A FREQUENCY GEAR CHANGEABLE BY A DC CONTROL VOLTAGE

Info

Publication number
AT376078B
AT376078B AT898778A AT898778A AT376078B AT 376078 B AT376078 B AT 376078B AT 898778 A AT898778 A AT 898778A AT 898778 A AT898778 A AT 898778A AT 376078 B AT376078 B AT 376078B
Authority
AT
Austria
Prior art keywords
control voltage
circuit arrangement
frequency gear
changeable
gear changeable
Prior art date
Application number
AT898778A
Other languages
German (de)
Other versions
ATA898778A (en
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of ATA898778A publication Critical patent/ATA898778A/en
Application granted granted Critical
Publication of AT376078B publication Critical patent/AT376078B/en

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 of the amplifier
    • 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 of the amplifier 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
AT898778A 1977-12-15 1978-12-15 CIRCUIT ARRANGEMENT WITH A FREQUENCY GEAR CHANGEABLE BY A DC CONTROL VOLTAGE AT376078B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772755827 DE2755827A1 (en) 1977-12-15 1977-12-15 CIRCUIT ARRANGEMENT WITH A FREQUENCY RESPONSE THAT CAN BE CHANGED BY A CONTROL VOLTAGE

Publications (2)

Publication Number Publication Date
ATA898778A ATA898778A (en) 1984-02-15
AT376078B true AT376078B (en) 1984-10-10

Family

ID=6026151

Family Applications (1)

Application Number Title Priority Date Filing Date
AT898778A AT376078B (en) 1977-12-15 1978-12-15 CIRCUIT ARRANGEMENT WITH A FREQUENCY GEAR CHANGEABLE BY A DC CONTROL VOLTAGE

Country Status (5)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2465369A1 (en) * 1979-09-13 1981-03-20 Thomson Csf Mixer circuit for volume and tone control circuit - has two parallel connected differential amplifiers responsive to three control signals and providing increased signal=to=noise ratio
DE3026551A1 (en) * 1980-07-12 1982-02-04 Philips Patentverwaltung Gmbh, 2000 Hamburg AMPLIFIER CIRCUIT
US4471320A (en) * 1981-05-27 1984-09-11 Frey Douglas R Voltage controlled element
US4528515A (en) * 1983-02-07 1985-07-09 Tektronix, Inc. High frequency differential amplifier with adjustable damping factor
US4563670A (en) * 1983-12-14 1986-01-07 Tektronix, Inc. High speed multiplying digital to analog converter
ATE49687T1 (en) * 1984-06-07 1990-02-15 Siemens Ag DIFFERENTIAL AMPLIFIER CIRCUIT.

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2262089C3 (en) * 1972-12-19 1975-10-30 Philips Patentverwaltung Gmbh, 2000 Hamburg Circuit arrangement for electronic frequency influencing, in particular electronic sound adjuster

Also Published As

Publication number Publication date
FR2412200A1 (en) 1979-07-13
FR2412200B1 (en) 1984-03-23
GB2010616A (en) 1979-06-27
JPS5489551A (en) 1979-07-16
DE2755827A1 (en) 1979-06-21
ATA898778A (en) 1984-02-15
GB2010616B (en) 1982-04-21

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