CA1035018A - Amplifier with signal level control - Google Patents

Amplifier with signal level control

Info

Publication number
CA1035018A
CA1035018A CA238,478A CA238478A CA1035018A CA 1035018 A CA1035018 A CA 1035018A CA 238478 A CA238478 A CA 238478A CA 1035018 A CA1035018 A CA 1035018A
Authority
CA
Canada
Prior art keywords
amplifier
signal level
level control
control
signal
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
CA238,478A
Other languages
French (fr)
Inventor
Petrie J. Van Der Plaats
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 CA1035018A publication Critical patent/CA1035018A/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
    • 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
    • H03G3/00—Gain control in amplifiers or frequency changers
CA238,478A 1974-10-31 1975-10-28 Amplifier with signal level control Expired CA1035018A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7414217A NL7414217A (en) 1974-10-31 1974-10-31 AMPLIFIER WITH SIGNAL LEVEL CONTROL.

Publications (1)

Publication Number Publication Date
CA1035018A true CA1035018A (en) 1978-07-18

Family

ID=19822367

Family Applications (1)

Application Number Title Priority Date Filing Date
CA238,478A Expired CA1035018A (en) 1974-10-31 1975-10-28 Amplifier with signal level control

Country Status (13)

Country Link
JP (1) JPS5754002B2 (en)
AR (1) AR209120A1 (en)
AU (1) AU500832B2 (en)
BE (1) BE835009A (en)
BR (1) BR7507059A (en)
CA (1) CA1035018A (en)
DE (1) DE2546844C2 (en)
DK (1) DK484475A (en)
FR (1) FR2290087A1 (en)
GB (1) GB1485092A (en)
IT (1) IT1047244B (en)
NL (1) NL7414217A (en)
SE (1) SE416095B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2707870C2 (en) * 1977-02-24 1983-04-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Circuit arrangement for gain control
US4317082A (en) * 1978-11-06 1982-02-23 National Semiconductor Corporation Current mirror circuit
DE3329665A1 (en) * 1983-08-17 1985-03-07 Telefunken electronic GmbH, 7100 Heilbronn CIRCUIT ARRANGEMENT FOR THE AMPLIFICATION OF ELECTRICAL SIGNALS
DE3329663A1 (en) * 1983-08-17 1985-03-07 Telefunken electronic GmbH, 7100 Heilbronn MULTI-STAGE SIGNAL TRANSMISSION SYSTEM
FR2571564A1 (en) * 1984-10-09 1986-04-11 Labo Cent Telecommunicat Integrated circuit delivering an output current whose variation is the inverse of that of the input current, applicable in particular in the field of telephony
WO2004015859A2 (en) * 2002-08-12 2004-02-19 Koninklijke Philips Electronics N.V. Variable gain amplifier with improved control characteristics linearity

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1274672A (en) * 1968-09-27 1972-05-17 Rca Corp Operational amplifier
DE2308835C3 (en) * 1972-03-02 1986-03-27 Sony Corp., Tokio/Tokyo Adjustable amplifier for electrical signals

Also Published As

Publication number Publication date
GB1485092A (en) 1977-09-08
BR7507059A (en) 1976-08-03
AR209120A1 (en) 1977-03-31
FR2290087B1 (en) 1980-07-18
DE2546844A1 (en) 1976-05-06
DE2546844C2 (en) 1981-09-24
BE835009A (en) 1976-04-29
IT1047244B (en) 1980-09-10
NL7414217A (en) 1976-05-04
SE416095B (en) 1980-11-24
AU8594375A (en) 1977-04-28
AU500832B2 (en) 1979-05-31
FR2290087A1 (en) 1976-05-28
JPS5754002B2 (en) 1982-11-16
DK484475A (en) 1976-05-01
SE7512014L (en) 1976-05-03
JPS5168156A (en) 1976-06-12

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