FR2797360B1 - Circuit d'amplification de puissance avec ajustement d'alimentation pour le controle de la puissance de la voie alternee et adjacente - Google Patents

Circuit d'amplification de puissance avec ajustement d'alimentation pour le controle de la puissance de la voie alternee et adjacente

Info

Publication number
FR2797360B1
FR2797360B1 FR0009161A FR0009161A FR2797360B1 FR 2797360 B1 FR2797360 B1 FR 2797360B1 FR 0009161 A FR0009161 A FR 0009161A FR 0009161 A FR0009161 A FR 0009161A FR 2797360 B1 FR2797360 B1 FR 2797360B1
Authority
FR
France
Prior art keywords
power
adjacent
amplifier circuit
adjustment
adjacent track
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
FR0009161A
Other languages
English (en)
Other versions
FR2797360A1 (fr
Inventor
Armin Klomsdorf
William Paul Alberth Jr
Luke Winkelmann
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.)
Motorola Mobility LLC
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 FR2797360A1 publication Critical patent/FR2797360A1/fr
Application granted granted Critical
Publication of FR2797360B1 publication Critical patent/FR2797360B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
  • Transmitters (AREA)
  • Control Of Amplification And Gain Control (AREA)
FR0009161A 1999-07-22 2000-07-13 Circuit d'amplification de puissance avec ajustement d'alimentation pour le controle de la puissance de la voie alternee et adjacente Expired - Fee Related FR2797360B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/358,884 US6160449A (en) 1999-07-22 1999-07-22 Power amplifying circuit with load adjust for control of adjacent and alternate channel power

Publications (2)

Publication Number Publication Date
FR2797360A1 FR2797360A1 (fr) 2001-02-09
FR2797360B1 true FR2797360B1 (fr) 2003-10-31

Family

ID=23411447

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0009161A Expired - Fee Related FR2797360B1 (fr) 1999-07-22 2000-07-13 Circuit d'amplification de puissance avec ajustement d'alimentation pour le controle de la puissance de la voie alternee et adjacente

Country Status (8)

Country Link
US (1) US6160449A (fr)
JP (1) JP4611496B2 (fr)
KR (1) KR100372856B1 (fr)
CN (1) CN1185788C (fr)
BR (1) BR0003788B1 (fr)
DE (1) DE10035060B4 (fr)
FR (1) FR2797360B1 (fr)
GB (1) GB2352897B (fr)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6525605B2 (en) * 1998-08-19 2003-02-25 Harris Corporation Power amplifier system having frequency and amplifier failure compensation
US6556814B1 (en) * 1999-07-22 2003-04-29 Motorola, Inc. Memory-based amplifier load adjust system
US6349216B1 (en) * 1999-07-22 2002-02-19 Motorola, Inc. Load envelope following amplifier system
US6738601B1 (en) * 1999-10-21 2004-05-18 Broadcom Corporation Adaptive radio transceiver with floating MOSFET capacitors
US7555263B1 (en) 1999-10-21 2009-06-30 Broadcom Corporation Adaptive radio transceiver
US6856199B2 (en) * 2000-10-10 2005-02-15 California Institute Of Technology Reconfigurable distributed active transformers
GB2368737B (en) * 2000-10-31 2004-11-10 Roke Manor Research Method and apparatus for controlling an amplifier
US6504426B2 (en) 2001-03-28 2003-01-07 Guy Picha Methods and systems for power amplifying of signals
JP4061197B2 (ja) * 2001-04-06 2008-03-12 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 送信器の効率を向上させるための方法及び装置
ATE424654T1 (de) * 2001-04-06 2009-03-15 Ericsson Telefon Ab L M Methode und einrichtung zur verbesserung des wirkungsgrades in einem sender
US6680652B2 (en) * 2001-08-06 2004-01-20 Rf Micro Devices, Inc. Load switching for transmissions with different peak-to-average power ratios
US7362818B1 (en) * 2001-08-30 2008-04-22 Nortel Networks Limited Amplitude and phase comparator for microwave power amplifier
US7113033B2 (en) * 2002-01-31 2006-09-26 Qualcomm Incorporated Variable impedance load for a variable gain radio frequency amplifier
US6642797B1 (en) * 2002-04-25 2003-11-04 Agere Systems, Inc. Normalization methods for automatic requency compensation in bluetooth applications
FI20020990A (fi) * 2002-05-27 2003-11-28 Nokia Corp Menetelmä signaalin tehon säätämiseksi radiojärjestelmän lähettimessä ja radiojärjestelmän lähetin
DE60226317T2 (de) * 2002-08-01 2009-06-25 Telefonaktiebolaget Lm Ericsson (Publ) Schaltung für leistungsverstärker
US6977562B2 (en) * 2002-09-19 2005-12-20 Agilent Technologies, Inc. Self-tuned matching network for high efficient power amplifiers
ATE506538T1 (de) 2002-10-09 2011-05-15 Abbott Diabetes Care Inc Kraftstoffzufuhrvorrichtung, system und verfahren
US7727181B2 (en) * 2002-10-09 2010-06-01 Abbott Diabetes Care Inc. Fluid delivery device with autocalibration
US7993108B2 (en) 2002-10-09 2011-08-09 Abbott Diabetes Care Inc. Variable volume, shape memory actuated insulin dispensing pump
US6794935B2 (en) 2002-10-17 2004-09-21 Motorola Inc. Power amplification circuit and method for supplying power at a plurality of desired power output levels
DE10260291A1 (de) * 2002-12-20 2004-07-01 Siemens Ag Elektronische Schaltung zur Informantionsübertragung
GB2398648B (en) 2003-02-19 2005-11-09 Nujira Ltd Power supply stage for an amplifier
FI115935B (fi) * 2003-02-25 2005-08-15 Nokia Corp Menetelmä ja laite tehovahvistimen ominaisuuksien säätämiseksi
US7679407B2 (en) * 2003-04-28 2010-03-16 Abbott Diabetes Care Inc. Method and apparatus for providing peak detection circuitry for data communication systems
US8071028B2 (en) * 2003-06-12 2011-12-06 Abbott Diabetes Care Inc. Method and apparatus for providing power management in data communication systems
US7202747B2 (en) * 2003-08-05 2007-04-10 Agile Materials And Technologies, Inc. Self-tuning variable impedance circuit for impedance matching of power amplifiers
US7215972B2 (en) * 2003-12-09 2007-05-08 Freescale Semiconductor, Inc. Adaptive transmit power control system
US8521204B2 (en) * 2004-09-30 2013-08-27 Motorola Mobility Llc Signal configuration based transmitter adjustment in wireless communication devices
US7706467B2 (en) 2004-12-17 2010-04-27 Andrew Llc Transmitter with an envelope tracking power amplifier utilizing digital predistortion of the signal envelope
US7148749B2 (en) * 2005-01-31 2006-12-12 Freescale Semiconductor, Inc. Closed loop power control with high dynamic range
US20060199553A1 (en) * 2005-03-07 2006-09-07 Andrew Corporation Integrated transceiver with envelope tracking
US20060224141A1 (en) 2005-03-21 2006-10-05 Abbott Diabetes Care, Inc. Method and system for providing integrated medication infusion and analyte monitoring system
US7346317B2 (en) * 2005-04-04 2008-03-18 Freescale Semiconductor, Inc. Dynamic gain and phase compensation for power amplifier load switching
US7768408B2 (en) 2005-05-17 2010-08-03 Abbott Diabetes Care Inc. Method and system for providing data management in data monitoring system
US8611835B2 (en) * 2005-05-20 2013-12-17 Qualcomm Incorporated Method and apparatus for sensing the envelope of high level multi frequency band RF signals
US7620437B2 (en) 2005-06-03 2009-11-17 Abbott Diabetes Care Inc. Method and apparatus for providing rechargeable power in data monitoring and management systems
US20060280261A1 (en) * 2005-06-10 2006-12-14 M/A-Com Eurotec Bv. System and method for controlling power output from a power amplifier
US7756561B2 (en) 2005-09-30 2010-07-13 Abbott Diabetes Care Inc. Method and apparatus for providing rechargeable power in data monitoring and management systems
JP2007104280A (ja) * 2005-10-04 2007-04-19 Nec Electronics Corp 高周波電力増幅回路
US7583190B2 (en) 2005-10-31 2009-09-01 Abbott Diabetes Care Inc. Method and apparatus for providing data communication in data monitoring and management systems
KR101229353B1 (ko) * 2005-11-03 2013-02-05 엘지전자 주식회사 휴대용 단말기 및 그의 파워앰프 정합방법
US8107902B2 (en) * 2005-11-28 2012-01-31 Paragon Communications Ltd. Method and apparatus for optimizing current consumption of amplifiers with power control
US8145251B2 (en) 2006-01-23 2012-03-27 Motorola Mobility, Inc. Power control in schedulable wireless communication terminal
US20070173260A1 (en) * 2006-01-23 2007-07-26 Love Robert T Wireless communication network scheduling
US7634240B2 (en) * 2006-01-31 2009-12-15 Motorola, Inc. Method and apparatus for controlling a supply voltage to a power amplifier
US8344966B2 (en) 2006-01-31 2013-01-01 Abbott Diabetes Care Inc. Method and system for providing a fault tolerant display unit in an electronic device
CN101461132B (zh) * 2006-06-09 2011-08-03 艾利森电话股份有限公司 具有负载补偿的高效率线性功率放大器
US7546817B2 (en) * 2006-07-21 2009-06-16 Radio Systems Corporation Animal containment transmitter system
US20080025254A1 (en) * 2006-07-25 2008-01-31 Motorola Inc Spectrum emission level variation in schedulable wireless communication terminal
US9622190B2 (en) 2006-07-25 2017-04-11 Google Technology Holdings LLC Spectrum emission level variation in schedulable wireless communication terminal
US8579853B2 (en) 2006-10-31 2013-11-12 Abbott Diabetes Care Inc. Infusion devices and methods
WO2008090721A1 (fr) * 2007-01-24 2008-07-31 Nec Corporation Amplificateur de puissance
EP2097920B1 (fr) * 2007-07-23 2017-08-09 TRUMPF Hüttinger GmbH + Co. KG Dispositif d'alimentation en plasma
US8068797B2 (en) * 2007-09-28 2011-11-29 Freescale Semiconductor, Inc. Gain control methods for wireless devices and transmitters
US8275151B2 (en) * 2007-12-19 2012-09-25 Agere Systems Inc. Speakerphone using adaptive phase rotation
TW200932194A (en) * 2008-01-29 2009-08-01 Univ Nat Taiwan A feed-forward automatic-gain control amplifier (FFAGCA) for biomedical application
US7768353B2 (en) 2008-06-13 2010-08-03 Samsung Electro-Mechanics Company, Ltd. Systems and methods for switching mode power amplifier control
WO2010020833A1 (fr) * 2008-08-20 2010-02-25 Freescale Semiconductor, Inc. Unité de communication sans fil, circuit intégré et procédé de commande de puissance d'un amplificateur de puissance associé
WO2010035065A1 (fr) * 2008-09-24 2010-04-01 Freescale Semiconductor, Inc. Unité de communication sans fil, circuit intégré et procédé de commande de puissance d'un amplificateur de puissance associé
US8140027B2 (en) * 2008-10-16 2012-03-20 Texas Instruments Incorporated Automatic frequency tuning system and method for an FM-band transmit power amplifier
CN101404638B (zh) * 2008-11-10 2011-04-20 华为技术有限公司 一种提高正交频分复用发信机效率的方法和装置
US8560082B2 (en) 2009-01-30 2013-10-15 Abbott Diabetes Care Inc. Computerized determination of insulin pump therapy parameters using real time and retrospective data processing
US8270921B2 (en) * 2009-04-27 2012-09-18 Csr Technology Inc. Systems and methods for tuning an antenna for a frequency modulation transceiver
WO2010129375A1 (fr) 2009-04-28 2010-11-11 Abbott Diabetes Care Inc. Analyse d'un algorithme en boucle fermée pour contrôle du glucose dans le sang
EP4276652A3 (fr) 2009-07-23 2024-01-31 Abbott Diabetes Care, Inc. Gestion en temps réel de données relatives à la régulation physiologique des taux de glucose
CN102577107B (zh) 2009-10-06 2015-06-10 富士通株式会社 PAPR(Peak-to-Average Power Ratio)确定装置以及通信装置
US8416023B2 (en) * 2010-06-08 2013-04-09 Nxp B.V. System and method for compensating for changes in an output impedance of a power amplifier
US9565655B2 (en) 2011-04-13 2017-02-07 Google Technology Holdings LLC Method and apparatus to detect the transmission bandwidth configuration of a channel in connection with reducing interference between channels in wireless communication systems
US8934500B2 (en) 2011-04-13 2015-01-13 Motorola Mobility Llc Method and apparatus using two radio access technologies for scheduling resources in wireless communication systems
JP5336554B2 (ja) * 2011-06-21 2013-11-06 日本電信電話株式会社 自動利得調整回路
WO2013002388A1 (fr) * 2011-06-30 2013-01-03 日本電信電話株式会社 Circuit d'ajustement automatique du gain
US9641131B2 (en) 2011-11-22 2017-05-02 Andrew Wireless Systems Gmbh Adaptive supply voltage for a power amplifier
US8874052B2 (en) 2012-11-15 2014-10-28 Motorola Mobility Llc Method and apparatus for improving efficiency and distortion leakage in a wireless power amplifier
US8804873B1 (en) * 2013-02-13 2014-08-12 Crestcom, Inc. Communication system and method with PAPR; and backoff configured for equilibrium
CN103281278B (zh) * 2013-04-24 2017-03-22 东莞宇龙通信科技有限公司 Lte通信发射系统、接收系统及通信终端
KR102094469B1 (ko) 2013-12-10 2020-03-27 삼성전자주식회사 디지털-아날로그 변환 장치 및 방법
KR102188059B1 (ko) 2013-12-23 2020-12-07 삼성전자 주식회사 Ldo 레귤레이터, 전원 관리 시스템 및 ldo 전압 제어 방법
US20150236877A1 (en) * 2014-02-14 2015-08-20 Mediatek Inc. Methods and apparatus for envelope tracking system
US9520907B2 (en) 2014-02-16 2016-12-13 Mediatek Inc. Methods and apparatus for envelope tracking system
CN105654014B (zh) * 2015-12-30 2018-02-02 广州中大微电子有限公司 一种可兼容高低速信号解调的射频信号解调电路
KR102483640B1 (ko) * 2016-07-04 2023-01-02 삼성전자주식회사 주파수 보정 방법 및 장치
KR102554150B1 (ko) * 2016-11-21 2023-07-12 삼성전자주식회사 수신기
US11848653B2 (en) * 2018-05-18 2023-12-19 Macom Technology Solutions Holdings, Inc. Method and apparatus to speed convergence and control behavior of digital control loop
US10901009B2 (en) * 2019-02-21 2021-01-26 Shenzhen GOODIX Technology Co., Ltd. Power detector for radiofrequency power amplifier circuits
US20220214385A1 (en) * 2021-01-04 2022-07-07 Molex CVS Bochum GmbH Methods and systems of power detection

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041395A (en) * 1976-08-02 1977-08-09 Integral Engineering & Manufacturing Corporation Transmitter performance monitor and antenna matching system
US4147985A (en) * 1977-07-29 1979-04-03 Rogers Noel A Low level modulation system for a radio transmitter
US4165493A (en) * 1978-04-17 1979-08-21 Rockwell International Corporation Protected amplifier apparatus
US4348644A (en) * 1979-09-14 1982-09-07 Nippon Gakki Seizo Kabushiki Kaisha Power amplifying circuit with changing means for supply voltage
US4370622A (en) * 1981-03-23 1983-01-25 Rockwell International Corporation IMD Limiter
IT1138380B (it) * 1981-05-21 1986-09-17 Innocenti Santeustacchio Spa Laminatoio reversibile di limitata potenzialita'particolarmente per la laminazione a caldo di acciai speciali e di metalli non ferrosi
US4356458A (en) * 1981-08-31 1982-10-26 Harry H. Leveen Automatic impedance matching apparatus
US4442407A (en) * 1982-06-11 1984-04-10 The United States Of America As Represented By The Secretary Of The Army Two loop automatic level control for power amplifier
US4546313A (en) * 1983-03-14 1985-10-08 The United States Of America As Represented By The United States Department Of Energy Peak power ratio generator
US4647871A (en) * 1985-11-22 1987-03-03 Motorola, Inc. Adaptive impedance mismatch detector system
US4827219A (en) * 1988-01-07 1989-05-02 The Regents Of The University Of California Remotely adjustable MRI RF coil impedance matching circuit with mutualy coupled resonators
JPH01201244A (ja) * 1988-02-08 1989-08-14 Toshiba Corp Ｍｒｉ装置のインピーダンス自動調整装置
FR2644647B1 (fr) * 1989-03-15 1991-05-24 Alcatel Transmission Oscillateur hyperfrequence commande en tension
US4924191A (en) * 1989-04-18 1990-05-08 Erbtec Engineering, Inc. Amplifier having digital bias control apparatus
US5170496A (en) * 1989-06-22 1992-12-08 Texas Instruments Deutschland Gmbh Circuit arrangement for matching the resonant frequency of an antenna resonant circuit to the output frequency of a transmitter output stage
CA2035455C (fr) * 1989-06-30 1995-08-22 Kouji Chiba Emetteur lineaire
FR2652969A1 (fr) * 1989-10-06 1991-04-12 Philips Electronique Lab Dispositif de predistorsion pour systeme de transmission numerique.
US4994757A (en) * 1989-11-01 1991-02-19 Motorola, Inc. Efficiency improvement of power amplifiers
US4985686A (en) * 1989-12-04 1991-01-15 Motorola, Inc. Active load impedance control system for radio frequency power amplifiers
JPH03198407A (ja) * 1989-12-26 1991-08-29 Mitsubishi Electric Corp 線形増幅器
US5276912A (en) * 1990-02-06 1994-01-04 Motorola, Inc. Radio frequency power amplifier having variable output power
JP2647730B2 (ja) * 1990-06-01 1997-08-27 ソニー株式会社 移動電話装置
US5060294A (en) * 1990-07-05 1991-10-22 Motorola, Inc. Dual mode power amplifier for radiotelephone
JP3086512B2 (ja) * 1990-11-14 2000-09-11 エリクソン−ジーイー モービル コミュニケーションズ ホールディング インコーポレイテッド 送信機及びその電力増幅回路
EP0563125A4 (en) * 1990-12-17 1997-02-26 Motorola Inc Dynamically biased amplifier
US5195045A (en) * 1991-02-27 1993-03-16 Astec America, Inc. Automatic impedance matching apparatus and method
US5220276A (en) * 1991-06-11 1993-06-15 Keithley Corporation Crest factor measurement device
JP2723702B2 (ja) * 1991-07-31 1998-03-09 日本電気株式会社 線形補償回路
US5428828A (en) * 1992-08-28 1995-06-27 Thomson Consumer Electronics, Inc. Television receiver tuning circuit
US5300894A (en) * 1992-10-20 1994-04-05 At&T Bell Laboratories Circuitry for minimizing peak power in an amplifier carrying a plurality of signals of differing frequencies
US5302914A (en) * 1992-10-20 1994-04-12 At&T Bell Laboratories Method and apparatus for reducing the peak-to-average power in multi-carrier RF communication systems
IT1256225B (it) * 1992-12-23 1995-11-29 Sits Soc It Telecom Siemens Procedimento e circuito per la compensazione adattativa delle distorsioni di guadagno di un amplificatore alle microonde con linearizzatore
US5420536A (en) * 1993-03-16 1995-05-30 Victoria University Of Technology Linearized power amplifier
US5351016A (en) * 1993-05-28 1994-09-27 Ericsson Ge Mobile Communications Inc. Adaptively self-correcting modulation system and method
US5339041A (en) * 1993-07-06 1994-08-16 The Boeing Company High efficiency power amplifier
JPH0746064A (ja) * 1993-07-29 1995-02-14 Nec Corp 負荷整合回路可変型高効率マイクロ波増幅器
US5564086A (en) * 1993-11-29 1996-10-08 Motorola, Inc. Method and apparatus for enhancing an operating characteristic of a radio transmitter
US5483680A (en) * 1994-01-07 1996-01-09 Harris Corporation Tuning method for automatic antenna couplers
JPH07240638A (ja) * 1994-03-01 1995-09-12 Sumitomo Electric Ind Ltd 高周波増幅器
US5589796A (en) * 1994-11-01 1996-12-31 Motorola, Inc Method and apparatus for increasing amplifier efficiency
US5640691A (en) * 1994-12-19 1997-06-17 Lucent Technologies Inc. Power controller for RF transmitters
US5673001A (en) * 1995-06-07 1997-09-30 Motorola, Inc. Method and apparatus for amplifying a signal
US5742201A (en) * 1996-01-30 1998-04-21 Spectrian Polar envelope correction mechanism for enhancing linearity of RF/microwave power amplifier
US6112059A (en) * 1997-11-12 2000-08-29 Motorola, Inc. Off-channel leakage power monitor apparatus and method
JPH11220338A (ja) * 1998-01-30 1999-08-10 Matsushita Electric Ind Co Ltd 高周波電力増幅器
JP2000004173A (ja) * 1998-06-17 2000-01-07 Denso Corp デジタル送信機の歪検出方法及び装置

Also Published As

Publication number Publication date
DE10035060A1 (de) 2001-04-12
BR0003788B1 (pt) 2013-02-19
GB2352897B (en) 2001-09-05
DE10035060B4 (de) 2005-06-23
US6160449A (en) 2000-12-12
KR100372856B1 (ko) 2003-02-19
GB2352897A (en) 2001-02-07
GB0017436D0 (en) 2000-08-30
JP4611496B2 (ja) 2011-01-12
FR2797360A1 (fr) 2001-02-09
CN1185788C (zh) 2005-01-19
BR0003788A (pt) 2001-03-13
KR20010015391A (ko) 2001-02-26
JP2001068940A (ja) 2001-03-16
CN1282143A (zh) 2001-01-31

Similar Documents

Publication Publication Date Title
FR2797360B1 (fr) Circuit d'amplification de puissance avec ajustement d'alimentation pour le controle de la puissance de la voie alternee et adjacente
FR2797361B1 (fr) Circuit d'amplification de puissance avec ajustement d'alimentation pour controler la puissance de la voie alternee et adjacente
DE60034301D1 (de) Vorwärtsgekoppelter Verstärker und Steuerschaltung dafür
DE69834258D1 (de) Klass- d-verstärker mit schaltungssteuerung
GB9814400D0 (en) Amplifier circuitry
DE19881110T1 (de) Leistungsverstärker mit geringer Verzerrung
HK1035080A1 (en) Amplifier with adjustable bias current
SG98369A1 (en) Power amplifier
AU2001292643A1 (en) Power amplifier circuitry and method
GB9705618D0 (en) Multistag evariablel gain amplifier circuit
FI19992242A (fi) Feedforward-vahvistinjärjestelmä
NO980890D0 (no) Kontroll av trafikk og transport
IL138612A0 (en) Wide-dynamic-range variable- gain amplifier
IL129270A0 (en) Class "d" amplifier
FR2753284B1 (fr) Amplificateur optique et procede d'amplification optique
GB2365635B (en) Low-noise amplifier with switched gain and method
SG80090A1 (en) Power amplifier arrangement
DE69909067D1 (de) Verstärker mit verstärkungssteuerung, verstärker mit variabler verstärkung und verstärker mit automatischer verstärkungsregelung
DE60040859D1 (de) Optischer verstaerker und optisches verstärkungsverfahren
NO994745D0 (no) Effektforsterkingssystem med intelligent styring av forsterkermoduler
GB9827232D0 (en) Automatic gain control amplifier control circuit
EP1425852A4 (fr) Verification et reglage du courant de repos traversant les transistors d'un amplificateur de puissance rf
GB0029419D0 (en) Power amplifier control circuit
DE69718122D1 (de) Verstärkungsregelungsschaltung und Verstärkungsregelungsverfahren
FR2680291B1 (fr) Amplificateur de puissance a transistors mesfet et son bloc d'alimentation, notamment pour l'amplification de signaux hyperfrequences a bord d'un stallite.

Legal Events

Date Code Title Description
TP Transmission of property

Owner name: MOTOROLA MOBILITY, INC., US

Effective date: 20110912

PLFP Fee payment

Year of fee payment: 16

ST Notification of lapse

Effective date: 20170331