AU500832B2 - Amplifier with gain control - Google Patents

Amplifier with gain control

Info

Publication number: AU500832B2
Authority: AU; Australia
Prior art keywords: amplifier; gain control; gain; control
Prior art date: 1974-10-31
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

AU85943/75A

Other versions

AU8594375A (en

Inventor

P. J Vander 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.)

1974-10-31

Filing date

1975-10-23

Publication date

1979-05-31

1975-10-23 Application filed by Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV

1977-04-28 Publication of AU8594375A publication Critical patent/AU8594375A/en

1979-05-31 Application granted granted Critical

1979-05-31 Publication of AU500832B2 publication Critical patent/AU500832B2/en

Status Expired legal-status Critical Current

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

AU85943/75A 1974-10-31 1975-10-23 Amplifier with gain control Expired AU500832B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NLNL7414217		1974-10-31
NL7414217A NL7414217A (en)	1974-10-31	1974-10-31	AMPLIFIER WITH SIGNAL LEVEL CONTROL.

Publications (2)

Publication Number	Publication Date
AU8594375A AU8594375A (en)	1977-04-28
AU500832B2 true AU500832B2 (en)	1979-05-31

Family

ID=19822367

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU85943/75A Expired AU500832B2 (en)	1974-10-31	1975-10-23	Amplifier with gain 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
DE3329663A1 (en) *	1983-08-17	1985-03-07	Telefunken electronic GmbH, 7100 Heilbronn	MULTI-STAGE SIGNAL TRANSMISSION SYSTEM
DE3329665A1 (en) *	1983-08-17	1985-03-07	Telefunken electronic GmbH, 7100 Heilbronn	CIRCUIT ARRANGEMENT FOR THE AMPLIFICATION OF ELECTRICAL SIGNALS
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
KR20050035271A (en) *	2002-08-12	2005-04-15	코닌클리즈케 필립스 일렉트로닉스 엔.브이.	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

1974
- 1974-10-31 NL NL7414217A patent/NL7414217A/en not_active Application Discontinuation
1975
- 1975-10-18 DE DE2546844A patent/DE2546844C2/en not_active Expired
- 1975-10-23 AU AU85943/75A patent/AU500832B2/en not_active Expired
- 1975-10-28 GB GB44360/75A patent/GB1485092A/en not_active Expired
- 1975-10-28 DK DK484475A patent/DK484475A/en unknown
- 1975-10-28 IT IT69665/75A patent/IT1047244B/en active
- 1975-10-28 JP JP50128993A patent/JPS5754002B2/ja not_active Expired
- 1975-10-28 CA CA238,478A patent/CA1035018A/en not_active Expired
- 1975-10-28 SE SE7512014A patent/SE416095B/en unknown
- 1975-10-29 AR AR260999D patent/AR209120A1/en active
- 1975-10-29 BR BR7507059*A patent/BR7507059A/en unknown
- 1975-10-29 BE BE161374A patent/BE835009A/en not_active IP Right Cessation
- 1975-10-30 FR FR7533155A patent/FR2290087A1/en active Granted

Also Published As

Publication number	Publication date
NL7414217A (en)	1976-05-04
SE416095B (en)	1980-11-24
BE835009A (en)	1976-04-29
JPS5168156A (en)	1976-06-12
DE2546844C2 (en)	1981-09-24
FR2290087B1 (en)	1980-07-18
AR209120A1 (en)	1977-03-31
FR2290087A1 (en)	1976-05-28
DK484475A (en)	1976-05-01
JPS5754002B2 (en)	1982-11-16
SE7512014L (en)	1976-05-03
IT1047244B (en)	1980-09-10
DE2546844A1 (en)	1976-05-06
BR7507059A (en)	1976-08-03
CA1035018A (en)	1978-07-18
AU8594375A (en)	1977-04-28
GB1485092A (en)	1977-09-08

Publication	Publication Date	Title
CA1027191A (en)	1978-02-28	Current amplifier
CA1029849A (en)	1978-04-18	Class d amplifiers
JPS5344155A (en)	1978-04-20	Gain control amplifier
CA1033422A (en)	1978-06-20	Push-pull amplifier
AU504018B2 (en)	1979-09-27	Pwm amplifier
AU504019B2 (en)	1979-09-27	Feedback amplifier
CA1025955A (en)	1978-02-07	Gain control circuit
AU506319B2 (en)	1979-12-20	Pwm amplifier
CA1033022A (en)	1978-06-13	Feedback amplifier
AU511763B2 (en)	1980-09-04	Gain control
CA1022246A (en)	1977-12-06	Amplifier arrangement
CA1033020A (en)	1978-06-13	Current amplifier
AU500832B2 (en)	1979-05-31	Amplifier with gain control
AU497506B2 (en)	1978-12-14	Amplifier
AU463055B2 (en)	1975-07-17	A variable gain amplifier
CA1023015A (en)	1977-12-20	Class ab-dual push-pull amplifier
AU7732475A (en)	1976-07-15	Multi-channel gain control
CA1027646A (en)	1978-03-07	Amplifier with fallsafe predetermined gain
AU501782B2 (en)	1979-06-28	Integrated amplifier
CA1022631A (en)	1977-12-13	Gain controlled differential amplifier
AU470064B2 (en)	1976-03-04	Amplifier gain control
HU171994B (en)	1978-05-28	Gain control arrangement with integrated operational amplifier
CA1002617A (en)	1976-12-28	Control circuit for use with amplifier
AU474178B2 (en)	1975-09-18	Amplifier arrangement
AU488682B2 (en)	1977-01-06	Amplifier