JPS55147816A - Variable gain amplifier - Google Patents
Variable gain amplifierInfo
- Publication number
- JPS55147816A JPS55147816A JP5576279A JP5576279A JPS55147816A JP S55147816 A JPS55147816 A JP S55147816A JP 5576279 A JP5576279 A JP 5576279A JP 5576279 A JP5576279 A JP 5576279A JP S55147816 A JPS55147816 A JP S55147816A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- switch
- input
- terminal
- capacitor
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 abstract 3
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G3/00—Gain control in amplifiers or frequency changers
-
- 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
- H03G1/0088—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using discontinuously variable devices, e.g. switch-operated
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5576279A JPS55147816A (en) | 1979-05-09 | 1979-05-09 | Variable gain amplifier |
US06/146,273 US4396890A (en) | 1979-05-09 | 1980-05-05 | Variable gain amplifier |
DE19803017669 DE3017669A1 (de) | 1979-05-09 | 1980-05-08 | Regelverstaerker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5576279A JPS55147816A (en) | 1979-05-09 | 1979-05-09 | Variable gain amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55147816A true JPS55147816A (en) | 1980-11-18 |
JPS6230529B2 JPS6230529B2 (ja) | 1987-07-02 |
Family
ID=13007852
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5576279A Granted JPS55147816A (en) | 1979-05-09 | 1979-05-09 | Variable gain amplifier |
Country Status (3)
Country | Link |
---|---|
US (1) | US4396890A (ja) |
JP (1) | JPS55147816A (ja) |
DE (1) | DE3017669A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57125507A (en) * | 1981-01-28 | 1982-08-04 | Advantest Corp | Direct current amplifier |
JPS57210708A (en) * | 1981-06-22 | 1982-12-24 | Hitachi Ltd | Variable gain amplifier |
US7982506B2 (en) | 2007-06-05 | 2011-07-19 | Nec Corporation | Voltage-current converter and filter circuit using same |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4441080A (en) * | 1981-12-17 | 1984-04-03 | Bell Telephone Laboratories, Incorporated | Amplifier with controlled gain |
JPS58121809A (ja) * | 1982-01-14 | 1983-07-20 | Toshiba Corp | 増幅回路 |
US4577097A (en) * | 1982-09-03 | 1986-03-18 | The Babcock & Wilcox Company | Three-mode analog controller with remote tuning |
US4516041A (en) * | 1982-11-22 | 1985-05-07 | Sony Corporation | Voltage controlled variable capacitor |
US5233309A (en) * | 1992-01-09 | 1993-08-03 | Analog Devices, Inc. | Programmable gain amplifier |
US5543759A (en) * | 1995-04-07 | 1996-08-06 | Digital Lab Studios, Llc | Audio amplification circuits |
US6031421A (en) * | 1998-07-22 | 2000-02-29 | Mcewan; Thomas E. | Controlled gain amplifier with variable control exponent |
US6906595B2 (en) * | 2003-08-30 | 2005-06-14 | Lsi Logic Corporation | Variable gain current feedback amplifier |
US7545210B2 (en) * | 2006-09-07 | 2009-06-09 | National Semiconductor Corporation | Gain adjustment for programmable gain amplifiers |
US7920026B2 (en) * | 2008-04-07 | 2011-04-05 | National Semiconductor Corporation | Amplifier output stage with extended operating range and reduced quiescent current |
DE102010012269B4 (de) * | 2010-03-22 | 2012-10-04 | Austriamicrosystems Ag | Differenzverstärker und Verfahren zum Betreiben eines Differenzverstärkers |
KR102362727B1 (ko) * | 2014-12-18 | 2022-02-15 | 엘지이노텍 주식회사 | 맥박 측정 장치 및 이를 이용한 컴퓨팅 장치 |
US9692378B2 (en) | 2015-11-20 | 2017-06-27 | Texas Instruments Incorporated | Programmable gain amplifier with analog gain trim using interpolation |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3794931A (en) * | 1972-10-10 | 1974-02-26 | Us Army | Electronic gain control |
JPS4924337A (ja) * | 1972-06-27 | 1974-03-04 | ||
JPS53110577A (en) * | 1977-03-09 | 1978-09-27 | Hitachi Ltd | Time-voltage converting circuit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2109514A6 (ja) * | 1969-06-20 | 1972-05-26 | Anvar | |
DE2546067C2 (de) * | 1975-10-15 | 1983-05-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verstärker mit steuerbarem Übertragungsmaß und umschaltbarer Steuerkennlinie |
DE2530144C3 (de) * | 1975-07-05 | 1981-11-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verstärker mit veränderbarem Übertragungsmaß |
DE2542745C2 (de) * | 1975-09-25 | 1983-06-09 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verstärker mit veränderbarem Übertragungsmaß, insbesondere für ein Kompander-System |
FR2352438A1 (fr) * | 1976-05-21 | 1977-12-16 | Thomson Csf | Dispositif amplificateur stabilise en continu, et systeme de detection electromagnetique comportant un tel dispositif |
-
1979
- 1979-05-09 JP JP5576279A patent/JPS55147816A/ja active Granted
-
1980
- 1980-05-05 US US06/146,273 patent/US4396890A/en not_active Expired - Lifetime
- 1980-05-08 DE DE19803017669 patent/DE3017669A1/de active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4924337A (ja) * | 1972-06-27 | 1974-03-04 | ||
US3794931A (en) * | 1972-10-10 | 1974-02-26 | Us Army | Electronic gain control |
JPS53110577A (en) * | 1977-03-09 | 1978-09-27 | Hitachi Ltd | Time-voltage converting circuit |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57125507A (en) * | 1981-01-28 | 1982-08-04 | Advantest Corp | Direct current amplifier |
JPS57210708A (en) * | 1981-06-22 | 1982-12-24 | Hitachi Ltd | Variable gain amplifier |
US7982506B2 (en) | 2007-06-05 | 2011-07-19 | Nec Corporation | Voltage-current converter and filter circuit using same |
Also Published As
Publication number | Publication date |
---|---|
US4396890A (en) | 1983-08-02 |
DE3017669C2 (ja) | 1987-01-29 |
JPS6230529B2 (ja) | 1987-07-02 |
DE3017669A1 (de) | 1980-11-13 |
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