DE69223219D1 - Durch eine Steuerspannung regelbarer Verstärker mit einem Operationsverstärker - Google Patents
Durch eine Steuerspannung regelbarer Verstärker mit einem OperationsverstärkerInfo
- Publication number
- DE69223219D1 DE69223219D1 DE69223219T DE69223219T DE69223219D1 DE 69223219 D1 DE69223219 D1 DE 69223219D1 DE 69223219 T DE69223219 T DE 69223219T DE 69223219 T DE69223219 T DE 69223219T DE 69223219 D1 DE69223219 D1 DE 69223219D1
- Authority
- DE
- Germany
- Prior art keywords
- amplifier
- control voltage
- controllable
- operational amplifier
- operational
- 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 - Fee Related
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
- H03G1/007—Circuits characterised by the type of controlling devices operated by a controlling current or voltage signal using continuously variable impedance elements using FET type devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/802,686 US5175508A (en) | 1991-12-05 | 1991-12-05 | Voltage-controlled amplifier using operational amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69223219D1 true DE69223219D1 (de) | 1998-01-02 |
DE69223219T2 DE69223219T2 (de) | 1998-03-26 |
Family
ID=25184429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69223219T Expired - Fee Related DE69223219T2 (de) | 1991-12-05 | 1992-10-22 | Durch eine Steuerspannung regelbarer Verstärker mit einem Operationsverstärker |
Country Status (3)
Country | Link |
---|---|
US (1) | US5175508A (de) |
EP (1) | EP0545536B1 (de) |
DE (1) | DE69223219T2 (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5469510A (en) * | 1993-06-28 | 1995-11-21 | Ford Motor Company | Arbitration adjustment for acoustic reproduction systems |
JPH10150334A (ja) * | 1996-11-19 | 1998-06-02 | Sanyo Electric Co Ltd | 電力増幅装置 |
JPH1168488A (ja) * | 1997-08-26 | 1999-03-09 | Nippon Precision Circuits Kk | 可変増幅利得回路および可変減衰利得回路 |
US6081603A (en) * | 1997-09-08 | 2000-06-27 | Information Storage Devices, Inc. | Method and apparatus for automatic gain control using a linear limiter circuit with voltage controlled resistors as a variable element |
US6084467A (en) * | 1998-10-30 | 2000-07-04 | Texas Instruments Incorporated | Analog amplifier clipping circuit |
US6388525B1 (en) * | 2001-01-29 | 2002-05-14 | National Semiconductor Corporation | Amplifier with controllable variable signal gain |
US6577198B1 (en) * | 2002-03-21 | 2003-06-10 | Anadigics, Inc. | Active power splitter with impedance matching |
DE602004009781T2 (de) * | 2003-04-16 | 2008-08-28 | Nxp B.V. | Verfahren zur regelung eines verstärkers mit variabler verstärkung und elektronische schaltung |
US7236054B2 (en) * | 2004-01-28 | 2007-06-26 | Silicon Storage Technology, Inc. | Multi-operational amplifier system |
JP4932369B2 (ja) * | 2006-07-27 | 2012-05-16 | ローム株式会社 | 音声信号増幅回路およびそれを用いたオーディオ装置ならびにボリウム切換方法 |
US8217809B2 (en) * | 2010-06-22 | 2012-07-10 | Microsoft Corporation | Low power sensing via resistive sensor matrix |
TWI486755B (zh) * | 2012-06-22 | 2015-06-01 | Askey Computer Corp | 電源供應模式切換電路及方法 |
US20170063306A1 (en) * | 2015-08-27 | 2017-03-02 | Qualcomm Incorporated | Gate induced drain leakage reduction |
CN108154887B (zh) * | 2017-12-26 | 2021-03-12 | 上海展扬通信技术有限公司 | 一种信息处理方法、装置及终端 |
CN111490739B (zh) * | 2019-01-25 | 2023-09-26 | 杭州海康威视数字技术股份有限公司 | 一种放大音频信号的装置以及设备 |
JP7494076B2 (ja) * | 2020-09-24 | 2024-06-03 | 株式会社東芝 | 信号処理回路 |
GB2613981B (en) * | 2023-03-03 | 2024-02-21 | Hilight Semiconductor Ltd | Opto-electronic assemblies |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3451006A (en) * | 1967-05-29 | 1969-06-17 | Honeywell Inc | Variable gain amplifiers |
US3539936A (en) * | 1968-02-09 | 1970-11-10 | Du Pont | Automatic range changing circuit |
US3652791A (en) * | 1969-01-08 | 1972-03-28 | Xerox Corp | Circuitry for distinguishing between background and intelligence areas on a document |
US3581223A (en) * | 1969-04-30 | 1971-05-25 | Hc Electronics Inc | Fast response dynamic gain control circuit |
US3679986A (en) * | 1970-09-04 | 1972-07-25 | Ibm | Non-linear feedback gain control and peak detector system |
US3868948A (en) * | 1972-08-16 | 1975-03-04 | Parke Davis & Co | Multiple channel electrocardiograph |
JPS5323161B2 (de) * | 1973-08-27 | 1978-07-13 | ||
US3860883A (en) * | 1974-03-22 | 1975-01-14 | Illinois Tool Works | Magnetically operated electronic gain control |
US4070632A (en) * | 1976-09-22 | 1978-01-24 | Tuttle John R | Discrete-gain output limiter |
DE2707609A1 (de) * | 1977-02-22 | 1978-08-24 | Licentia Gmbh | In seiner verstaerkung steuerbarer wechselspannungsverstaerker |
US4181896A (en) * | 1977-08-06 | 1980-01-01 | Licentia Patent-Verwaltungs-G.M.B.H | Device for optional dynamic compression or expansion |
SE417884B (sv) * | 1980-01-03 | 1981-04-13 | Dan Rutger Weinholt | Koppling for att vid amplitudreglering av en analogsignal genom omkoppling i ett resistansnet minimera storningar och distorsion av den analoga signalen |
CA1266707A (en) * | 1985-12-16 | 1990-03-13 | Steve S. Yang | Method of calibrating and equalizing a multi-channel automatic gain control amplifier |
JPH03608A (ja) * | 1989-05-16 | 1991-01-07 | Ibaraki Seiki Kk | 包装機の回転動力制御装置 |
-
1991
- 1991-12-05 US US07/802,686 patent/US5175508A/en not_active Expired - Fee Related
-
1992
- 1992-10-22 DE DE69223219T patent/DE69223219T2/de not_active Expired - Fee Related
- 1992-10-22 EP EP92309665A patent/EP0545536B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0545536A1 (de) | 1993-06-09 |
US5175508A (en) | 1992-12-29 |
DE69223219T2 (de) | 1998-03-26 |
EP0545536B1 (de) | 1997-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |