CN1124680C - 高动态范围可变增益放大器 - Google Patents

高动态范围可变增益放大器 Download PDF

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Publication number
CN1124680C
CN1124680C CN97181532A CN97181532A CN1124680C CN 1124680 C CN1124680 C CN 1124680C CN 97181532 A CN97181532 A CN 97181532A CN 97181532 A CN97181532 A CN 97181532A CN 1124680 C CN1124680 C CN 1124680C
Authority
CN
China
Prior art keywords
amplifier
current
input stage
input
signal
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
Application number
CN97181532A
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English (en)
Chinese (zh)
Other versions
CN1245598A (zh
Inventor
S·S·古坎瓦尔
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.)
Qualcomm Inc
Original Assignee
Qualcomm Inc
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
Priority claimed from US08/789,108 external-priority patent/US5880631A/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CN1245598A publication Critical patent/CN1245598A/zh
Application granted granted Critical
Publication of CN1124680C publication Critical patent/CN1124680C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • 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)
CN97181532A 1997-01-27 1997-12-19 高动态范围可变增益放大器 Expired - Fee Related CN1124680C (zh)

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 (en) 1997-01-27 1997-12-19 High dynamic range variable gain amplifier

Publications (2)

Publication Number Publication Date
CN1245598A CN1245598A (zh) 2000-02-23
CN1124680C true CN1124680C (zh) 2003-10-15

Family

ID=25146617

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97181532A Expired - Fee Related CN1124680C (zh) 1997-01-27 1997-12-19 高动态范围可变增益放大器

Country Status (9)

Country Link
JP (4) JP4135988B2 (xx)
KR (2) KR100572187B1 (xx)
CN (1) CN1124680C (xx)
AU (1) AU732076B2 (xx)
BR (1) BR9714291A (xx)
CA (1) CA2274529C (xx)
HK (1) HK1023861A1 (xx)
RU (1) RU2209504C2 (xx)
WO (1) WO1998033272A1 (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
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 (en) 2005-11-23 2007-05-31 Nxp B.V. A monotonic variable gain amplifier and an automatic gain control circuit
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 (en) * 2011-01-04 2015-12-16 ams AG Amplifier with non-linear current mirror
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)

* Cited by examiner, † Cited by third party
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 (en) * 1993-06-30 1997-09-03 STMicroelectronics S.r.l. Variable gain amplifier
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

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
KR20060002023A (ko) 2006-01-06
HK1023861A1 (en) 2000-09-22
WO1998033272A1 (en) 1998-07-30
CA2274529C (en) 2004-07-27
RU2209504C2 (ru) 2003-07-27
CA2274529A1 (en) 1998-07-30
BR9714291A (pt) 2000-04-25

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C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP03 "change of name, title or address"

Address after: Holy land, California, Egypt

Patentee after: Qualcomm Inc.

Address before: Holy land, California, Egypt

Patentee before: Qualcomm Inc.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20031015

Termination date: 20111219