CA2274529C - Amplificateur a gain variable a plage dynamique elevee - Google Patents
Amplificateur a gain variable a plage dynamique elevee Download PDFInfo
- Publication number
- CA2274529C CA2274529C CA002274529A CA2274529A CA2274529C CA 2274529 C CA2274529 C CA 2274529C CA 002274529 A CA002274529 A CA 002274529A CA 2274529 A CA2274529 A CA 2274529A CA 2274529 C CA2274529 C CA 2274529C
- Authority
- CA
- Canada
- Prior art keywords
- amplifier
- current
- coupled
- transconductance
- input stage
- 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
- 230000007850 degeneration Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 14
- 230000005669 field effect Effects 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 description 10
- 230000001413 cellular effect Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 230000003321 amplification Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
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- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
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- 239000000758 substrate Substances 0.000 description 1
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
- H03G1/0017—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
- H03G3/20—Automatic control
- H03G3/30—Automatic control in amplifiers having semiconductor devices
Landscapes
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
Abstract
Cet amplificateur à gain variable (100) multi-étages, à plage dynamique élevée et à basse puissance comporte un étage d'entrée (120) monté en cascade avec un ou plusieurs étages d'amplificateurs de courant (160A, 160B), ce qui autorise une maîtrise indépendante du gain de chaque étage (120). L'étage d'entrée (120) peut être constitué d'un amplificateur à transconductance variable (227) utilisant une contre-réaction variable d'émetteur. L'amplificateur de courant (160A, 160B) peut être constitué d'un circuit Darlington différentiel (510) couplé à un amplificateur cascode différentiel (520). L'amplificateur à transconductance variable (227) convertit un signal de tension d'entrée en signal de courant. L'amplificateur à gain variable (100) de l'invention est conçu pour opérer efficacement à faible puissance.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/789,108 US5880631A (en) | 1996-02-28 | 1997-01-27 | High dynamic range variable gain amplifier |
US789,108 | 1997-01-27 | ||
PCT/US1997/023657 WO1998033272A1 (fr) | 1997-01-27 | 1997-12-19 | Amplificateur a gain variable a plage dynamique elevee |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2274529A1 CA2274529A1 (fr) | 1998-07-30 |
CA2274529C true CA2274529C (fr) | 2004-07-27 |
Family
ID=25146617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002274529A Expired - Fee Related CA2274529C (fr) | 1997-01-27 | 1997-12-19 | Amplificateur a gain variable a plage dynamique elevee |
Country Status (9)
Country | Link |
---|---|
JP (4) | JP4135988B2 (fr) |
KR (2) | KR100572187B1 (fr) |
CN (1) | CN1124680C (fr) |
AU (1) | AU732076B2 (fr) |
BR (1) | BR9714291A (fr) |
CA (1) | CA2274529C (fr) |
HK (1) | HK1023861A1 (fr) |
RU (1) | RU2209504C2 (fr) |
WO (1) | WO1998033272A1 (fr) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357913A (en) * | 1999-12-24 | 2001-07-04 | Ericsson Telefon Ab L M | Conditioning a gain control signal so that an output is dB linear |
CN1741375B (zh) * | 2004-08-26 | 2010-10-27 | 瑞昱半导体股份有限公司 | 可动态调整供给电压的放大电路 |
ATE460772T1 (de) * | 2005-04-19 | 2010-03-15 | Alcatel Lucent | Analog-multiplizierer |
US7397306B2 (en) * | 2005-11-02 | 2008-07-08 | Marvell World Trade Ltd. | High-bandwidth high-gain amplifier |
WO2007060625A1 (fr) | 2005-11-23 | 2007-05-31 | Nxp B.V. | Amplificateur a gain a variation monotone et circuit de commande automatique de gain |
CN101350605B (zh) * | 2008-09-12 | 2011-09-28 | 东南大学 | 带有最小增益控制的改进型双极型可变增益放大器 |
US7944311B1 (en) * | 2009-12-17 | 2011-05-17 | Samsung Electro-Mechanics Company, Ltd. | Feedback biasing for cascode amplifiers |
EP2472723B1 (fr) * | 2011-01-04 | 2015-12-16 | ams AG | Amplificateur doté d'un miroir de courant non linéaire |
CN103051298B (zh) * | 2011-10-17 | 2016-07-06 | 中国科学院微电子研究所 | 可编程增益放大电路和可编程增益放大器 |
US9071136B2 (en) * | 2012-03-30 | 2015-06-30 | Qualcomm Incorporated | System and method for suppression of peaking in an external LC filter of a buck regulator |
RU2534972C1 (ru) * | 2013-04-12 | 2014-12-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ФГБОУ ВПО "ЮРГУЭС") | Широкополосный неинвертирующий усилитель с малым уровнем нелинейных искажений и шумов |
RU2519348C1 (ru) * | 2013-05-14 | 2014-06-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Южно-Российский государственный университет экономики и сервиса" (ФГБОУ ВПО "ЮРГУЭС") | Управляемый усилитель и смеситель аналоговых сигналов на базе дифференциального каскада дарлингтона |
CN103647532A (zh) * | 2013-11-26 | 2014-03-19 | 苏州贝克微电子有限公司 | 一种低电压,折叠式电流信号调制器 |
CN105353295A (zh) * | 2015-12-01 | 2016-02-24 | 无锡比迅科技有限公司 | 一种运放增益测量电路 |
RU2614345C1 (ru) * | 2015-12-21 | 2017-03-24 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Поволжский государственный технологический университет" | Способ расширения динамического диапазона в радиотехнических системах |
US9735738B2 (en) * | 2016-01-06 | 2017-08-15 | Analog Devices Global | Low-voltage low-power variable gain amplifier |
CN110289822A (zh) * | 2019-06-27 | 2019-09-27 | 电子科技大学 | 一种宽频带大动态自动增益电路 |
RU2771479C1 (ru) * | 2021-05-12 | 2022-05-04 | Общество с ограниченной ответственностью "ТРИУМФ АУДИО" | Симметричный усилитель с обратной связью |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2937316B2 (ja) * | 1987-08-28 | 1999-08-23 | 株式会社東芝 | Fm変調器 |
JPH077891B2 (ja) * | 1988-01-09 | 1995-01-30 | ローム株式会社 | 電子ボリューム回路 |
JPH0281505A (ja) * | 1988-09-19 | 1990-03-22 | Hitachi Ltd | 可変利得増幅器 |
US5157350A (en) * | 1991-10-31 | 1992-10-20 | Harvey Rubens | Analog multipliers |
JPH05218764A (ja) * | 1992-02-03 | 1993-08-27 | Hitachi Ltd | 電子ボリューム |
DE69229731T2 (de) * | 1992-09-16 | 1999-12-23 | St Microelectronics Srl | Von dem Eingangssignal dynamisch gesteuerter Transkonduktanz-Differenzverstärker |
EP0632583B1 (fr) * | 1993-06-30 | 1997-09-03 | STMicroelectronics S.r.l. | Amplificateur à gain réglable |
US5469115A (en) * | 1994-04-28 | 1995-11-21 | Qualcomm Incorporated | Method and apparatus for automatic gain control in a digital receiver |
JPH08130428A (ja) * | 1994-10-28 | 1996-05-21 | Sony Corp | 可変利得増幅器 |
-
1997
- 1997-12-19 KR KR1019997006627A patent/KR100572187B1/ko not_active IP Right Cessation
- 1997-12-19 CN CN97181532A patent/CN1124680C/zh not_active Expired - Fee Related
- 1997-12-19 JP JP53197498A patent/JP4135988B2/ja not_active Expired - Fee Related
- 1997-12-19 CA CA002274529A patent/CA2274529C/fr not_active Expired - Fee Related
- 1997-12-19 WO PCT/US1997/023657 patent/WO1998033272A1/fr not_active Application Discontinuation
- 1997-12-19 AU AU57132/98A patent/AU732076B2/en not_active Ceased
- 1997-12-19 BR BR9714291-3A patent/BR9714291A/pt not_active IP Right Cessation
- 1997-12-19 KR KR1020057022889A patent/KR100654112B1/ko not_active IP Right Cessation
- 1997-12-19 RU RU99118581/09A patent/RU2209504C2/ru not_active IP Right Cessation
-
2000
- 2000-05-12 HK HK00102848A patent/HK1023861A1/xx not_active IP Right Cessation
-
2007
- 2007-08-17 JP JP2007212947A patent/JP2008005538A/ja not_active Withdrawn
-
2008
- 2008-03-18 JP JP2008069493A patent/JP2008182755A/ja active Pending
-
2009
- 2009-10-30 JP JP2009251325A patent/JP2010051011A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
KR20000070394A (ko) | 2000-11-25 |
JP2001509345A (ja) | 2001-07-10 |
KR100654112B1 (ko) | 2006-12-05 |
JP2008182755A (ja) | 2008-08-07 |
JP4135988B2 (ja) | 2008-08-20 |
CN1245598A (zh) | 2000-02-23 |
AU732076B2 (en) | 2001-04-12 |
JP2010051011A (ja) | 2010-03-04 |
KR100572187B1 (ko) | 2006-04-18 |
JP2008005538A (ja) | 2008-01-10 |
AU5713298A (en) | 1998-08-18 |
CN1124680C (zh) | 2003-10-15 |
KR20060002023A (ko) | 2006-01-06 |
HK1023861A1 (en) | 2000-09-22 |
WO1998033272A1 (fr) | 1998-07-30 |
RU2209504C2 (ru) | 2003-07-27 |
CA2274529A1 (fr) | 1998-07-30 |
BR9714291A (pt) | 2000-04-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20121219 |