ZA78758B - A.c.amplifier having controllable gain - Google Patents

A.c.amplifier having controllable gain

Info

Publication number
ZA78758B
ZA78758B ZA00780758A ZA78758A ZA78758B ZA 78758 B ZA78758 B ZA 78758B ZA 00780758 A ZA00780758 A ZA 00780758A ZA 78758 A ZA78758 A ZA 78758A ZA 78758 B ZA78758 B ZA 78758B
Authority
ZA
South Africa
Prior art keywords
amplifier
controllable gain
controllable
gain
Prior art date
Application number
ZA00780758A
Other languages
English (en)
Inventor
J Wermuth
Original Assignee
Licentia 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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of ZA78758B publication Critical patent/ZA78758B/xx

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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • 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
    • H03G1/0035—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements
    • H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using field-effect transistors [FET]
ZA00780758A 1977-02-22 1978-02-08 A.c.amplifier having controllable gain ZA78758B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772707609 DE2707609A1 (de) 1977-02-22 1977-02-22 In seiner verstaerkung steuerbarer wechselspannungsverstaerker

Publications (1)

Publication Number Publication Date
ZA78758B true ZA78758B (en) 1979-01-31

Family

ID=6001874

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00780758A ZA78758B (en) 1977-02-22 1978-02-08 A.c.amplifier having controllable gain

Country Status (9)

Country Link
US (1) US4216434A (de)
JP (1) JPS53104145A (de)
AT (1) AT365018B (de)
DE (1) DE2707609A1 (de)
FR (1) FR2381416A1 (de)
GB (1) GB1597032A (de)
IT (1) IT1092347B (de)
NO (1) NO780592L (de)
ZA (1) ZA78758B (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2812431A1 (de) * 1978-03-22 1979-09-27 Licentia Gmbh Verstaerker mit veraenderbarem uebertragungsmass
JPS59156007A (ja) * 1983-02-25 1984-09-05 Hitachi Ltd 増幅回路
JPS634225A (ja) * 1986-06-24 1988-01-09 Asahi Optical Co Ltd 電子シャッターカメラの測光アンプ
DE3627056A1 (de) * 1986-08-09 1988-02-18 Thomson Brandt Gmbh Schaltung zur dynamik-kompression oder -expansion in einem nutzsignalweg
DE3642984A1 (de) * 1986-12-17 1988-06-30 Thomson Brandt Gmbh Schaltung zur dynamik-kompression und/oder -expansion eines signals
US4868515A (en) * 1988-10-21 1989-09-19 The United States Of America As Represented By The Secretary Of The Navy Narrow-bandwidth unstable laser resonator
US5138280A (en) * 1991-12-05 1992-08-11 Ford Motor Company Multichannel amplifier with gain matching
US5175508A (en) * 1991-12-05 1992-12-29 Ford Motor Company Voltage-controlled amplifier using operational amplifier
US5412346A (en) * 1993-12-13 1995-05-02 At&T Corp. Variable gain voltage signal amplifier
JPH10290127A (ja) * 1997-04-17 1998-10-27 Rohm Co Ltd 電流／電圧変換ｉｃ及び光電気変換ｉｃ
US6137356A (en) * 1998-02-23 2000-10-24 Canon Kabushiki Kaisha Operational amplifier with means for changing a resistance value of an active feedback element
JP2000101355A (ja) * 1998-09-17 2000-04-07 Fujitsu Ltd 増幅回路及びそれを備えた半導体集積回路
JP3496612B2 (ja) * 2000-02-04 2004-02-16 ヤマハ株式会社 電子ボリューム回路
ITSV20010016A1 (it) * 2001-05-28 2002-11-28 Esaote Spa Amplificatore a guadagno variabile e basso rumore per sengali di ricezione di macchine per il rilevamento di immagini mediante ultrasuoni o
US7224153B2 (en) * 2005-04-26 2007-05-29 Texas Instruments Incorporated Apparatus and method to compensate for effects of load capacitance on power regulator
US7262655B2 (en) * 2005-04-28 2007-08-28 Freescale Semiconductor, Inc. High bandwidth resistor
CN101827924A (zh) * 2007-10-15 2010-09-08 陶氏环球技术公司 用于改进制动系统的润滑性的官能流体组合物
JP5116540B2 (ja) * 2008-04-09 2013-01-09 ルネサスエレクトロニクス株式会社 フィルタ回路及び受信装置
KR102584245B1 (ko) * 2021-06-07 2023-10-05 주식회사 에스이피엔지니어링 스위칭전원용 pwm 제어장치

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3569603A (en) * 1968-08-01 1971-03-09 Hammond Corp Moving formant band-pass amplifier for an electronic musical instrument
DE2013365B2 (de) * 1970-03-20 1972-08-03 Robert Bosch Elektronik Gmbh, 1000 Berlin Und 7000 Stuttgart Mehrstufiger transistorverstaerker fuer schwerhoerigengeraete
US3679986A (en) * 1970-09-04 1972-07-25 Ibm Non-linear feedback gain control and peak detector system

Also Published As

Publication number Publication date
FR2381416A1 (fr) 1978-09-15
US4216434A (en) 1980-08-05
GB1597032A (en) 1981-09-03
DE2707609A1 (de) 1978-08-24
FR2381416B3 (de) 1980-11-28
JPS53104145A (en) 1978-09-11
AT365018B (de) 1981-12-10
NO780592L (no) 1978-08-23
ATA87778A (de) 1981-04-15
IT7819910A0 (it) 1978-02-02
IT1092347B (it) 1985-07-06

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