BR9405621A - Processo para estabilizar ganho de um circuito de controle em dispositivo de comunicação e dispositivo de comunicação - Google Patents

Processo para estabilizar ganho de um circuito de controle em dispositivo de comunicação e dispositivo de comunicação

Info

Publication number
BR9405621A
BR9405621A BR9405621-8A BR9405621A BR9405621A BR 9405621 A BR9405621 A BR 9405621A BR 9405621 A BR9405621 A BR 9405621A BR 9405621 A BR9405621 A BR 9405621A
Authority
BR
Brazil
Prior art keywords
gain
communication device
control circuit
stabilizing control
circuit gain
Prior art date
Application number
BR9405621-8A
Other languages
English (en)
Inventor
Kevin J Holoubek
Richard J Keniuk
Paul R Bontrager
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of BR9405621A publication Critical patent/BR9405621A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/52—TPC using AGC [Automatic Gain Control] circuits or 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
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • 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
    • H03G3/3036—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H03G3/3047—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers for intermittent signals, e.g. burst signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Transceivers (AREA)

Abstract

Um circuito de estabilização de ganho efetua ajustes de tempo discreto para a trajetória de ganho para frente do amplificador Rf (210, 212, 214, 302, 216, 218) de um sistema de controle de (300) baseado em uma medição do ganho no circuito de controle. A estabilização do ganho do amplificador RF (210, 214, 216) permite que o circuito de controle de transmissor permaneça em funcionamento em condições variadas de ganho que são prevalecentes nas etapas (210, 214, 216) da trajetória de ganho de aplificador RF (210, 212, 214, 302, 216, 218). Os efeitos das mudanças de ganho dentro das etapas (210, 214, 216) devido a variações de parte a parte e efeitos de temperatura são minimizados ou eliminados por esta ajustagem de ganho.
BR9405621-8A 1993-09-30 1994-09-02 Processo para estabilizar ganho de um circuito de controle em dispositivo de comunicação e dispositivo de comunicação BR9405621A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/129,276 US5590418A (en) 1993-09-30 1993-09-30 Method and apparatus for stabilizing the gain of a control loop in a communication device
PCT/US1994/009896 WO1995009489A1 (en) 1993-09-30 1994-09-02 Method and apparatus for stabilizing the gain of a control loop in a communication device

Publications (1)

Publication Number Publication Date
BR9405621A true BR9405621A (pt) 1999-09-08

Family

ID=22439253

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9405621-8A BR9405621A (pt) 1993-09-30 1994-09-02 Processo para estabilizar ganho de um circuito de controle em dispositivo de comunicação e dispositivo de comunicação

Country Status (8)

Country Link
US (1) US5590418A (pt)
JP (1) JP3245863B2 (pt)
BR (1) BR9405621A (pt)
CA (1) CA2148600C (pt)
DE (1) DE4497317T1 (pt)
FI (1) FI952634A (pt)
SE (1) SE516075C2 (pt)
WO (1) WO1995009489A1 (pt)

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US5748678A (en) * 1995-07-13 1998-05-05 Motorola, Inc. Radio communications apparatus
GB2309342B (en) * 1996-01-18 2000-08-23 Motorola Israel Ltd Linear transmitter and method of operation
JP2996170B2 (ja) * 1996-03-21 1999-12-27 日本電気株式会社 利得制御回路
US5898912A (en) * 1996-07-01 1999-04-27 Motorola, Inc. Direct current (DC) offset compensation method and apparatus
SE520227C2 (sv) * 1997-04-18 2003-06-10 Ericsson Telefon Ab L M Effektförstärkarkrets, samt förfarande för reglering och användning av en sådan krets
US6259682B1 (en) * 1997-11-25 2001-07-10 Uniden America Corporation Closed loop transmitter with improved stability and accuracy over a wide range of power levels having means for maintaining constant loop gain
US6131013A (en) * 1998-01-30 2000-10-10 Motorola, Inc. Method and apparatus for performing targeted interference suppression
US6449462B1 (en) * 1998-02-27 2002-09-10 Telefonaktiebolaget L M Ericsson (Publ) Method and system for quality-based power control in cellular communications systems
JP3712160B2 (ja) * 1998-04-17 2005-11-02 松下電器産業株式会社 無線装置、無線装置における送信電力制御方法および記録媒体
US6385173B1 (en) * 1999-02-16 2002-05-07 Telefonaktiebolaget L M Ericsson (Publ) Adaptive control of telecommunications systems with measurements of varying time-delays
US6507732B1 (en) * 1999-09-14 2003-01-14 Lucent Technologies Inc. Dynamic path gain compensation for radios in wireless communication systems
US6721368B1 (en) 2000-03-04 2004-04-13 Qualcomm Incorporated Transmitter architectures for communications systems
EP1158666A1 (en) * 2000-05-25 2001-11-28 Lucent Technologies Inc. Circuit arrangement and method for discrete-time regulation of the output power of a transmission device
US20040198261A1 (en) * 2002-06-28 2004-10-07 Wei Xiong Method of self-calibration in a wireless transmitter
US6831506B1 (en) * 2003-09-17 2004-12-14 Rf Micro Devices, Inc. Reconfigurable filter architecture
US7120402B2 (en) * 2004-03-01 2006-10-10 Motorola, Inc. Method and apparatus for a high performance and high dynamic range baseband power control system
DE102006050124B3 (de) * 2006-10-25 2008-07-03 Eads Deutschland Gmbh Regelschaltung
US7979039B2 (en) * 2007-09-24 2011-07-12 Intel Corporation Pre-distorting a transmitted signal for offset cancellation
US8787851B2 (en) * 2012-07-10 2014-07-22 Huawei Device Co., Ltd. System and method for quickly power amplifier control
US11843410B2 (en) * 2022-03-23 2023-12-12 L3Harris Technologies, Inc. Joint stepped overlapping hysteresis gain control

Family Cites Families (20)

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Publication number Priority date Publication date Assignee Title
SU550594A1 (ru) * 1971-07-27 1977-03-15 Институт Электродинамики И Институт Электросварки Им.Е.О.Патона Ан Украинской Сср Устройство дл уравновешивающего преобразовани сигналов
GB2098819A (en) * 1981-05-20 1982-11-24 Philips Electronic Associated Gain stabilization in a total power radiometer
US4403255A (en) * 1981-11-24 1983-09-06 Rca Corporation FM/TV Automatic gain control system
US4502021A (en) * 1983-03-31 1985-02-26 Storage Technology Corporation Constant bandwidth automatic gain control system
SU1123094A1 (ru) * 1983-04-21 1984-11-07 Предприятие П/Я А-1178 Усилитель частотно-манипулированных сигналов со стабилизацией коэффициента усилени
US4625240A (en) * 1984-07-25 1986-11-25 Eeco, Inc. Adaptive automatic gain control
EP0213224B1 (en) * 1985-08-28 1990-04-11 International Business Machines Corporation Method for rapid gain acquisition in a modem receiver
JPS62216511A (ja) * 1986-03-18 1987-09-24 Nec Corp 自動利得制御装置
US4910467A (en) * 1988-11-02 1990-03-20 Motorola, Inc. Method and apparatus for decoding a quadrature modulated signal
US5065351A (en) * 1989-03-30 1991-11-12 Eastman Kodak Company Stabilization and calibration of precision electronic circuit component
JP2743492B2 (ja) * 1989-07-05 1998-04-22 松下電器産業株式会社 送信出力電力制御装置
US5187809A (en) * 1990-08-24 1993-02-16 Motorola, Inc. Dual mode automatic gain control
JP2834304B2 (ja) * 1990-10-19 1998-12-09 松下電器産業株式会社 線形電力増幅回路
KR960000775B1 (ko) * 1990-10-19 1996-01-12 닛본덴기 가부시끼가이샤 고주파 전력 증폭기의 출력레벨 제어회로
JP2703667B2 (ja) * 1991-01-10 1998-01-26 三菱電機株式会社 電力増幅装置
JPH056943U (ja) * 1991-02-28 1993-01-29 株式会社東芝 ゲインコントロール回路
US5339454A (en) * 1991-08-05 1994-08-16 Ford Motor Company Automatic gain control for RF amplifier
US5303394A (en) * 1991-08-09 1994-04-12 Rockwell International Feedback stabilized Q multiplier filter circuit
US5323329A (en) * 1991-12-23 1994-06-21 Eni, Div. Of Astec America, Inc. Digitally assisted power levelling circuit for rf power generator
SE470035B (sv) * 1992-03-17 1993-10-25 Ericsson Ge Mobile Communicat Anordning för eliminering av offsetfel i en effektreglerkrets för ett pulsat sändarslutsteg

Also Published As

Publication number Publication date
JPH08504074A (ja) 1996-04-30
CA2148600C (en) 2000-07-11
SE9501929L (sv) 1995-07-10
FI952634A0 (fi) 1995-05-30
JP3245863B2 (ja) 2002-01-15
FI952634A (fi) 1995-05-30
SE9501929D0 (sv) 1995-05-24
US5590418A (en) 1996-12-31
SE516075C2 (sv) 2001-11-12
WO1995009489A1 (en) 1995-04-06
DE4497317T1 (de) 1995-11-23

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