BR9714291A - Amplificador de ganho variável de elevada faixa dinâmica - Google Patents

Amplificador de ganho variável de elevada faixa dinâmica

Info

Publication number
BR9714291A
BR9714291A BR9714291-3A BR9714291A BR9714291A BR 9714291 A BR9714291 A BR 9714291A BR 9714291 A BR9714291 A BR 9714291A BR 9714291 A BR9714291 A BR 9714291A
Authority
BR
Brazil
Prior art keywords
amplifier
variable gain
high dynamic
gain amplifier
stage
Prior art date
Application number
BR9714291-3A
Other languages
English (en)
Portuguese (pt)
Inventor
Sahota S Gurkanwal
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 BR9714291A publication Critical patent/BR9714291A/pt

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
    • H03G1/0017—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)
BR9714291-3A 1997-01-27 1997-12-19 Amplificador de ganho variável de elevada faixa dinâmica BR9714291A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/789,108 US5880631A (en) 1996-02-28 1997-01-27 High dynamic range variable gain amplifier
PCT/US1997/023657 WO1998033272A1 (fr) 1997-01-27 1997-12-19 Amplificateur a gain variable a plage dynamique elevee

Publications (1)

Publication Number Publication Date
BR9714291A true BR9714291A (pt) 2000-04-25

Family

ID=25146617

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9714291-3A BR9714291A (pt) 1997-01-27 1997-12-19 Amplificador de ganho variável de elevada faixa dinâmica

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)

* 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
EP1715579B1 (fr) * 2005-04-19 2010-03-10 Alcatel Lucent Multiplicateur analogique
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)

* 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
EP0587965B1 (fr) * 1992-09-16 1999-08-04 STMicroelectronics S.r.l. Etage à transconductance différentiel à commande dynamique par l'amplitude du signal d'entrée
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

Also Published As

Publication number Publication date
JP2010051011A (ja) 2010-03-04
CA2274529A1 (fr) 1998-07-30
JP2008005538A (ja) 2008-01-10
RU2209504C2 (ru) 2003-07-27
JP2001509345A (ja) 2001-07-10
KR100572187B1 (ko) 2006-04-18
KR100654112B1 (ko) 2006-12-05
AU5713298A (en) 1998-08-18
CN1124680C (zh) 2003-10-15
CN1245598A (zh) 2000-02-23
KR20060002023A (ko) 2006-01-06
WO1998033272A1 (fr) 1998-07-30
HK1023861A1 (en) 2000-09-22
KR20000070394A (ko) 2000-11-25
CA2274529C (fr) 2004-07-27
JP4135988B2 (ja) 2008-08-20
AU732076B2 (en) 2001-04-12
JP2008182755A (ja) 2008-08-07

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Legal Events

Date Code Title Description
B08F Application fees: dismissal - article 86 of industrial property law
B08G Application fees: restoration
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
B09A Decision: intention to grant
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 06/05/2008, OBSERVADAS AS CONDICOES LEGAIS.

B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 14A E 15A ANUIDADE(S), CONFORME ART. 87 DA LPI 9.279.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)