IT1254375B - Dispositivo e metodo per il controllo a rampa della frequenza e della potenza di amplificatori di potenza, in particolare per radiotelefoni. - Google Patents

Dispositivo e metodo per il controllo a rampa della frequenza e della potenza di amplificatori di potenza, in particolare per radiotelefoni.

Info

Publication number
IT1254375B
IT1254375B ITRM920414A ITRM920414A IT1254375B IT 1254375 B IT1254375 B IT 1254375B IT RM920414 A ITRM920414 A IT RM920414A IT RM920414 A ITRM920414 A IT RM920414A IT 1254375 B IT1254375 B IT 1254375B
Authority
IT
Italy
Prior art keywords
power
signal
radio
frequency
telephones
Prior art date
Application number
ITRM920414A
Other languages
English (en)
Inventor
Alexander W Hietala
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 ITRM920414A0 publication Critical patent/ITRM920414A0/it
Publication of ITRM920414A1 publication Critical patent/ITRM920414A1/it
Application granted granted Critical
Publication of IT1254375B publication Critical patent/IT1254375B/it

Links

Classifications

    • 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

  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Control Of Amplification And Gain Control (AREA)

Abstract

Oggetto dell'invenzione è un dispositivo di controllo per amplificatori di potenza che aumenta il livello di potenza di un am-plificatore di potenza (203) senza un sostanziale treno di impulsi di rumore da frequenza. Il dispositivo di controllo presenta un rivelatore di potenza di uscita a radio frequenza (211) che genera un segnale (229) correlato al livello di potenza dell'amplificatore di potenza (203). Questo segnale (229) viene confrontato (215) con un segnale di riferimento (213) per determinare se l'amplificatore di potenza (203) è attivo. Il segnale (227) generato da questo comparatore (215) viene usato per determinare il livello di tensione del segnale (231) di controllo automatico di uscita (AOC).
ITRM920414A 1991-06-03 1992-06-01 Dispositivo e metodo per il controllo a rampa della frequenza e della potenza di amplificatori di potenza, in particolare per radiotelefoni. IT1254375B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/709,738 US5150075A (en) 1991-06-03 1991-06-03 Power amplifier ramp up method and apparatus

Publications (3)

Publication Number Publication Date
ITRM920414A0 ITRM920414A0 (it) 1992-06-01
ITRM920414A1 ITRM920414A1 (it) 1993-12-01
IT1254375B true IT1254375B (it) 1995-09-14

Family

ID=24851137

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM920414A IT1254375B (it) 1991-06-03 1992-06-01 Dispositivo e metodo per il controllo a rampa della frequenza e della potenza di amplificatori di potenza, in particolare per radiotelefoni.

Country Status (15)

Country Link
US (1) US5150075A (it)
JP (1) JP2910242B2 (it)
KR (1) KR960006635B1 (it)
CN (1) CN1027848C (it)
AU (1) AU643623B2 (it)
CA (1) CA2086673C (it)
DE (2) DE4291719T1 (it)
FI (1) FI109157B (it)
FR (1) FR2677511B1 (it)
GB (1) GB2263027B (it)
HU (1) HU213593B (it)
IT (1) IT1254375B (it)
SE (1) SE515887C2 (it)
UA (1) UA26844C2 (it)
WO (1) WO1992022135A1 (it)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2247793A (en) * 1990-09-06 1992-03-11 Motorola Inc Control of pulse power amplifier rise and fall
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
US5287555A (en) * 1991-07-22 1994-02-15 Motorola, Inc. Power control circuitry for a TDMA radio frequency transmitter
US5276917A (en) * 1991-10-22 1994-01-04 Nokia Mobile Phones Ltd. Transmitter switch-on in a dual-mode mobile phone
US5278519A (en) * 1991-11-13 1994-01-11 Ericsson Ge Mobile Communications Inc. Method and apparatus for controlling RF spectral splatter into adjacent channels when activating an RF transmitter
DE69325844T2 (de) * 1992-04-17 2000-08-31 Ericsson Inc., Research Triangle Park Mobil unterstütztes Weiterreichen mit Kodemultiplex-Vielfachzugriff
FI93159C (fi) * 1992-09-23 1995-02-27 Nokia Mobile Phones Ltd Menetelmä radiopuhelimen radiotaajuusvahvistimen ohjaamiseksi ja menetelmän mukainen ohjausjärjestelmä
GB2273009A (en) * 1992-11-28 1994-06-01 Motorola Gmbh RF Power amplifier ramp control of power level rise and fall
JPH06260864A (ja) * 1993-03-08 1994-09-16 Matsushita Electric Ind Co Ltd 送信出力増幅器
US5448770A (en) * 1993-04-05 1995-09-05 Motorola, Inc. Temperature-coefficient controlled radio frequency signal detecting circuitry
US5412341A (en) * 1993-10-28 1995-05-02 Motorola, Inc. Power control apparatus and method for a radio frequency amplifier
GB2289386B (en) * 1994-04-28 1998-12-30 Motorola Ltd Radio transmitter and method of control of transmit power increase
EP0720287B1 (en) * 1994-12-29 2003-01-15 AT&T Corp. Wide dynamic range power amplifier
JP2571033B2 (ja) * 1994-12-30 1997-01-16 日本電気株式会社 送信電力増幅回路の出力制御回路
US5673001A (en) * 1995-06-07 1997-09-30 Motorola, Inc. Method and apparatus for amplifying a signal
DE19613625C1 (de) * 1996-04-04 1997-07-24 Siemens Ag Verstärkeranordnung mit regelbarer Ausgangsleistung zur Verstärkung eines hochfrequenten Eingangssignals
US5859567A (en) * 1996-09-24 1999-01-12 Motorola, Inc. Power amplifier circuit with temperature compensating level shifter
US6223056B1 (en) * 1997-12-31 2001-04-24 Samsung Electronics Co., Ltd. Systems and methods for dynamically controlling a variable power amplifier
US6154664A (en) * 1998-06-24 2000-11-28 Conexant System, Inc. Dual band cellular phone with two power amplifiers and power control circuit therefore
FR2781323B1 (fr) * 1998-07-16 2000-08-18 Alsthom Cge Alcatel Procede de transmission dans des fenetres successives
US6169886B1 (en) * 1998-11-02 2001-01-02 Motorola, Inc. Power amplifier control according to a delayed waveform suitable for use in a communication device
JP2001016116A (ja) * 1999-07-02 2001-01-19 Nec Corp 携帯無線機
DE69917767T2 (de) * 1999-07-20 2005-06-02 Stmicroelectronics S.R.L., Agrate Brianza Empfängerteil eines Telephons
US6278327B1 (en) * 1999-08-13 2001-08-21 Xilinx, Inc. Negative voltage detector
US6307429B1 (en) 2000-01-12 2001-10-23 National Semiconductor Corporation Extended power ramp table for power amplifier control loop
US6476677B1 (en) * 2000-08-30 2002-11-05 Skyworks Solutions, Inc. Power amplifier saturation detection and compensation
EP1239603B1 (en) * 2001-03-09 2010-06-23 Semiconductor Components Industries, LLC Power amplifier driver and method of using it
FR2824433B1 (fr) * 2001-05-07 2003-08-01 Cit Alcatel Dispositif de regulation du controle de la puissance d'un emetteur
US6710651B2 (en) * 2001-10-22 2004-03-23 Kyocera Wireless Corp. Systems and methods for controlling output power in a communication device
US7071776B2 (en) * 2001-10-22 2006-07-04 Kyocera Wireless Corp. Systems and methods for controlling output power in a communication device
US6744313B2 (en) 2002-05-02 2004-06-01 Semiconductor Components Industries, L.L.C. Power amplifier driver and method of using
CN100488040C (zh) * 2002-10-16 2009-05-13 卡西欧计算机株式会社 无线电波接收设备、无线电波时钟以及转发器
DE10250612B4 (de) 2002-10-30 2014-01-16 Advanced Micro Devices, Inc. Automatische Leistungspegelsteuerschaltung für ein Sende/Empfangselement
US7129787B1 (en) 2003-04-18 2006-10-31 Broadcom Corporation Systems and methods for ramping power amplifier output power
US7268990B1 (en) 2003-05-15 2007-09-11 Marvell International Ltd. Power amplifier protection
US7068985B2 (en) * 2003-05-19 2006-06-27 Sony Ericsson Mobile Communication Ab Radio transmitters with temperature compensated power control profiles and methods of operating same
KR100604823B1 (ko) * 2003-07-11 2006-07-26 삼성전자주식회사 Ｇｓｍ과 ｇｐｒｓ 송신기의 전력 램핑 제어기 및 그 제어방법
US7512386B2 (en) * 2003-08-29 2009-03-31 Nokia Corporation Method and apparatus providing integrated load matching using adaptive power amplifier compensation
ATE338376T1 (de) * 2003-10-31 2006-09-15 Freescale Semiconductor Inc Sättigungsdetektion eines leistungsverstärkers und betrieb bei maximaler leistung
US20050119025A1 (en) * 2003-12-02 2005-06-02 Rishi Mohindra Serial digital interface for wireless network radios and baseband integrated circuits
US20050118977A1 (en) * 2003-12-02 2005-06-02 Drogi Serge F. Method, apparatus, and systems for digital radio communication systems
US20050117663A1 (en) * 2003-12-02 2005-06-02 Serge Drogi Chip set for digital audio satellite radio receivers
JP4139800B2 (ja) * 2004-08-24 2008-08-27 松下電器産業株式会社 Ａｇｃ回路
CN100421491C (zh) * 2004-10-11 2008-09-24 英华达(上海)电子有限公司 减小gsm终端设备发射杂散频谱的方法
US7567530B2 (en) * 2004-12-06 2009-07-28 Pantech Co., Ltd. Method of converting communication channel in mobile communication terminal
DE602004032064D1 (de) * 2004-12-23 2011-05-12 Freescale Semiconductor Inc Drahtlose kommunikationseinheit und leistungsregelsystem dafür
US8014737B2 (en) * 2004-12-23 2011-09-06 Freescale Semiconductor, Inc. Power control system for a wireless communication unit
US7148749B2 (en) * 2005-01-31 2006-12-12 Freescale Semiconductor, Inc. Closed loop power control with high dynamic range
US7738594B2 (en) * 2006-06-30 2010-06-15 Intel Corporation Method to maintain RF power amplifier linearity in varying load VSWR conditions without isolator
US8121561B2 (en) * 2009-01-07 2012-02-21 Texas Instruments Incorporated Power tuning system and method for power amplifier
US8463209B1 (en) 2009-07-27 2013-06-11 Rf Micro Devices, Inc. Pre-charge of a power amplifier pedestal voltage
US9100033B2 (en) 2013-12-20 2015-08-04 Motorola Solutions, Inc. Systems and methods for using a digital power amplifier controller (DPAC) having foward-loop correction and feedback-loop correction
CN110687959A (zh) * 2019-08-15 2020-01-14 鹤壁天海电子信息系统有限公司 功率控制装置及其控制电路、积分比较器以及方法
CN112290986A (zh) * 2020-10-29 2021-01-29 太仓市同维电子有限公司 一种信号放大装置及信号自动调节放大方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5832801B2 (ja) * 1976-02-10 1983-07-15 ヤマハ株式会社 電力増幅器
US4367443A (en) * 1980-01-17 1983-01-04 Motorola, Inc. Radio frequency signal power amplifier
US4451801A (en) * 1981-08-24 1984-05-29 National Semiconductor Corporation Wideband linear carrier current amplifier
JPS5999851A (ja) * 1982-11-29 1984-06-08 Nec Corp 信号制御回路
JPS59128837A (ja) * 1983-01-14 1984-07-25 Nec Corp バ−スト信号用自動利得制御回路
US4594558A (en) * 1985-04-12 1986-06-10 Genrad, Inc. High-switching-speed d.c. amplifier with input-offset current compensation
US4602218A (en) * 1985-04-30 1986-07-22 Motorola, Inc. Automatic output control circuitry for RF power amplifiers with wide dynamic range
GB8826918D0 (en) * 1988-11-17 1988-12-21 Motorola Inc Power amplifier for radio frequency signal
GB2233515B (en) * 1989-06-20 1993-12-15 Technophone Ltd Levelling control circuit
GB2233517B (en) * 1989-06-26 1994-04-06 Orbitel Mobile Communications Transmitter power control for radio telephone system
US4985686A (en) * 1989-12-04 1991-01-15 Motorola, Inc. Active load impedance control system for radio frequency power amplifiers
FI87028C (fi) * 1989-12-22 1992-11-10 Nokia Mobile Phones Ltd Metod foer att reglera effekt hos en spaenningsstyrd effektfoerstaerkare och koppling foer anvaendning i metoden
US5043672A (en) * 1990-03-26 1991-08-27 Novatel Communications Ltd. Power detector utilizing bias voltage divider for precision control of an amplifier
GB2247793A (en) * 1990-09-06 1992-03-11 Motorola Inc Control of pulse power amplifier rise and fall
US5278994A (en) * 1991-06-03 1994-01-11 Motorola, Inc. Power amplifier saturation detection and correction method and apparatus

Also Published As

Publication number Publication date
CN1067536A (zh) 1992-12-30
SE9300254L (sv) 1993-01-28
FI930306L (fi) 1993-01-26
CA2086673A1 (en) 1992-12-04
UA26844C2 (uk) 1999-12-29
HU9300279D0 (en) 1993-05-28
FR2677511A1 (fr) 1992-12-11
FI930306A0 (fi) 1993-01-26
SE515887C2 (sv) 2001-10-22
ITRM920414A0 (it) 1992-06-01
KR960006635B1 (ko) 1996-05-22
US5150075A (en) 1992-09-22
AU643623B2 (en) 1993-11-18
FR2677511B1 (fr) 1997-06-06
CN1027848C (zh) 1995-03-08
CA2086673C (en) 1996-09-17
AU1892592A (en) 1993-01-08
DE4291719C2 (de) 1996-04-18
GB2263027A (en) 1993-07-07
FI109157B (fi) 2002-05-31
JPH06500681A (ja) 1994-01-20
WO1992022135A1 (en) 1992-12-10
GB2263027B (en) 1995-07-19
GB9302132D0 (en) 1993-04-21
HUT72782A (en) 1996-05-28
JP2910242B2 (ja) 1999-06-23
DE4291719T1 (it) 1993-07-15
SE9300254D0 (sv) 1993-01-28
ITRM920414A1 (it) 1993-12-01
HU213593B (en) 1997-08-28

Similar Documents

Publication Publication Date Title
IT1254375B (it) Dispositivo e metodo per il controllo a rampa della frequenza e della potenza di amplificatori di potenza, in particolare per radiotelefoni.
IT1254374B (it) Dispositivo e metodo per la rivelazione e la correzione della saturazione di amplificatori di potenza.
KR920009061A (ko) 고주파 전력 증폭기의 출력 레벨 제어회로
EP0058703A1 (en) DEVICE FOR INCREASING THE DYNAMIC RANGE ON THE INPUT STAGE OF A RECEIVER IN A FIBER OPTIC INFORMATION TRANSMISSION SYSTEM.
US4360928A (en) Non-interfering on-line receiver test system
JPS649325A (en) Light waveform observing instrument
MY115672A (en) Primary color video signal output circuit
EP0921402A3 (en) Electro-optic sampling oscilloscope
EP0227248A3 (en) Apparatus for indicating proper compensation of an adjustable frequency compensation network
JPS5691543A (en) Optical signal receiver
SU1654845A1 (ru) Устройство дл определени распределений веро тностей амплитуд импульсных сигналов
SU898335A2 (ru) Автокомпенсационный преобразователь импульсных сигналов
SU582577A1 (ru) Устройство дл приема самосинхронизирующихс импульсных последовательностей
SU898368A2 (ru) Устройство след щей блокировки аппаратуры акустического каротажа
SU900430A1 (ru) Пиковый детектор
SU1370623A1 (ru) Устройство дл измерени интенсивности шумового сигнала
SU726670A1 (ru) Устройство дл приема самосинхронизирующихс импульсных последовательностей
NL7806906A (en) Line transmission with temporary dispersion smoothing - derives binary sign or amplitude signals from received signals with binary error component
SU1394403A1 (ru) Усилитель
KR930004313Y1 (ko) 수신신호의 자동이득 조절장치
SU441678A1 (ru) Устройство дл измерени интенсивности шумового сигнала на фоне импульсных помех
SU995356A1 (ru) Преобразователь биимпульсного сигнала в двоичный сигнал
SU1239673A1 (ru) Устройство дл электроразведки
RU1841050C (ru) Измеритель импульсный свч мощности
SU943607A1 (ru) Устройство дл измерени малых уровней сверхвысокочастотных сигналов