[go: up one dir, main page]

BR9808608A - Aparelho sem fio móvel e método para controlar o mesmo - Google Patents

Aparelho sem fio móvel e método para controlar o mesmo

Info

Publication number
BR9808608A
BR9808608A BR9808608-1A BR9808608A BR9808608A BR 9808608 A BR9808608 A BR 9808608A BR 9808608 A BR9808608 A BR 9808608A BR 9808608 A BR9808608 A BR 9808608A
Authority
BR
Brazil
Prior art keywords
transmitter
mobile wireless
levels
output force
output
Prior art date
Application number
BR9808608-1A
Other languages
English (en)
Inventor
Steven Sharp
Stewart S Taylor
Ronald R Ruebusch
Sammuel W Hammond
Original Assignee
Triquint Semiconductor 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 Triquint Semiconductor Inc filed Critical Triquint Semiconductor Inc
Publication of BR9808608A publication Critical patent/BR9808608A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • 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
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • 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
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
    • 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
    • H03F1/0261—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A
    • H03F1/0272—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the polarisation voltage or current, e.g. gliding Class A by using a signal derived from the output signal
    • 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
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/18—Indexing scheme relating to amplifiers the bias of the gate of a FET being controlled by a control signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/207—A hybrid coupler being used as power measuring circuit at the output of an amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/411—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising two power stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Amplifiers (AREA)

Abstract

<B> APARELHO SEM FIO MóVEL E MéTODO PARA CONTROLAR O MESMO<D>. Uma voltagem de operação aplicada a um amplificador de força de um transmissor em um transceptor sem fio móvel é dinamicamente controlada de forma a aumentar a eficiência do transmissor em todos os níveis de força de saída. Em uma modalidade, os níveis correntes de polarização dentro do transmissor são também variados para otimizar a eficiência do transmissor em todos os níveis de força de saída. Em uma modalidade preferida, um regulador de comutação altamente eficiente é controlado por um circuito de controle para ajustar a voltagem de operação e/ou a corrente de polarização para o amplificador de força no transmissor. O circuito de controle tem como sua entrada qualquer um entre diversos sinais que refletem a força de saída real do transmissor, a força de saída desejada ou a oscilação de voltagem de saída do transmissor.
BR9808608-1A 1997-04-25 1998-04-08 Aparelho sem fio móvel e método para controlar o mesmo BR9808608A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/843,107 US6148220A (en) 1997-04-25 1997-04-25 Battery life extending technique for mobile wireless applications
PCT/US1998/006870 WO1998049771A1 (en) 1997-04-25 1998-04-08 Battery life extending technique for mobile wireless applications

Publications (1)

Publication Number Publication Date
BR9808608A true BR9808608A (pt) 2000-05-23

Family

ID=25289091

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9808608-1A BR9808608A (pt) 1997-04-25 1998-04-08 Aparelho sem fio móvel e método para controlar o mesmo

Country Status (10)

Country Link
US (3) US6148220A (pt)
EP (1) EP0978163A1 (pt)
JP (1) JP2001522565A (pt)
KR (1) KR20010006525A (pt)
CN (1) CN1252905A (pt)
BR (1) BR9808608A (pt)
CA (1) CA2285236A1 (pt)
IL (1) IL132512A0 (pt)
TW (1) TW374269B (pt)
WO (1) WO1998049771A1 (pt)

Families Citing this family (133)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6148220A (en) 1997-04-25 2000-11-14 Triquint Semiconductor, Inc. Battery life extending technique for mobile wireless applications
US6339361B1 (en) * 1999-06-09 2002-01-15 Conexant Systems, Inc. Power amplifier driver system for wireless handset
JP3607855B2 (ja) * 1999-07-19 2005-01-05 シャープ株式会社 電力増幅器
JP2001094349A (ja) * 1999-08-31 2001-04-06 Samsung Electronics Co Ltd 携帯電話端末用電力増幅器
US6313705B1 (en) 1999-12-20 2001-11-06 Rf Micro Devices, Inc. Bias network for high efficiency RF linear power amplifier
JP3474825B2 (ja) * 2000-03-13 2003-12-08 富士通カンタムデバイス株式会社 高周波電力増幅器および通信装置
JP4610697B2 (ja) * 2000-06-13 2011-01-12 パナソニック株式会社 送信電力制御方法及び無線通信装置
US6259324B1 (en) * 2000-06-23 2001-07-10 International Business Machines Corporation Active bias network circuit for radio frequency amplifier
US6351189B1 (en) * 2000-07-31 2002-02-26 Nokia Networks Oy System and method for auto-bias of an amplifier
US6734724B1 (en) * 2000-10-06 2004-05-11 Tropian, Inc. Power control and modulation of switched-mode power amplifiers with one or more stages
GB0028689D0 (en) * 2000-11-24 2001-01-10 Qualcomm Uk Ltd Amplifier circuit
US6760604B2 (en) * 2001-01-29 2004-07-06 Motorola, Inc. Portable radio transceiver having shared power source for audio and RF amplifiers
TW503345B (en) * 2001-03-26 2002-09-21 Mediatec Inc Power controller
JP3664990B2 (ja) * 2001-04-25 2005-06-29 株式会社東芝 高周波回路及び通信システム
EP1255352A1 (en) * 2001-05-03 2002-11-06 Media Tek Inc. Power controller
US6701138B2 (en) * 2001-06-11 2004-03-02 Rf Micro Devices, Inc. Power amplifier control
US6522202B2 (en) * 2001-06-12 2003-02-18 Telefonaktiebolaget Lm Ericsson (Publ) Current controlled power amplifier
SE519243C2 (sv) * 2001-06-20 2003-02-04 Ericsson Telefon Ab L M Förfarande och anordning för att minska en linjedrivares effektförbrukning
US6535066B1 (en) 2001-06-21 2003-03-18 Cisco Technology, Inc. Dynamic RF amplifier bias control for digital wireless communications devices
US6778018B2 (en) 2001-07-16 2004-08-17 Koninklijke Philips Electronics N.V. Linear power amplifier
US6724252B2 (en) * 2002-02-21 2004-04-20 Rf Micro Devices, Inc. Switched gain amplifier circuit
US6624702B1 (en) * 2002-04-05 2003-09-23 Rf Micro Devices, Inc. Automatic Vcc control for optimum power amplifier efficiency
US7110737B2 (en) * 2002-05-14 2006-09-19 Sony Corporation Audio equipment and control method of audio equipment
US6900697B1 (en) * 2002-05-31 2005-05-31 National Semiconductor Corporation Method and system for providing power management in a radio frequency power amplifier by dynamically adjusting supply and bias conditions
US6977551B2 (en) * 2002-07-19 2005-12-20 Micro Mobio Dual band power amplifier module for wireless communication devices
US20040232982A1 (en) * 2002-07-19 2004-11-25 Ikuroh Ichitsubo RF front-end module for wireless communication devices
US6774718B2 (en) * 2002-07-19 2004-08-10 Micro Mobio Inc. Power amplifier module for wireless communication devices
US7493094B2 (en) * 2005-01-19 2009-02-17 Micro Mobio Corporation Multi-mode power amplifier module for wireless communication devices
US7071783B2 (en) * 2002-07-19 2006-07-04 Micro Mobio Corporation Temperature-compensated power sensing circuit for power amplifiers
JP2004128599A (ja) * 2002-09-30 2004-04-22 Ricoh Co Ltd 演算増幅器及び当該演算増幅器を用いたスピーカアンプ
US7010284B2 (en) 2002-11-06 2006-03-07 Triquint Semiconductor, Inc. Wireless communications device including power detector circuit coupled to sample signal at interior node of amplifier
US20040072554A1 (en) * 2002-10-15 2004-04-15 Triquint Semiconductor, Inc. Automatic-bias amplifier circuit
US6701134B1 (en) 2002-11-05 2004-03-02 Rf Micro Devices, Inc. Increased dynamic range for power amplifiers used with polar modulation
DE10313868B4 (de) * 2003-03-21 2009-11-19 Siemens Ag Katheter zur magnetischen Navigation
KR20050119144A (ko) 2003-03-27 2005-12-20 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 송신기, 송신 방법 및 시스템
US7184799B1 (en) 2003-05-14 2007-02-27 Marvell International Ltd. Method and apparatus for reducing wake up time of a powered down device
US6917244B2 (en) 2003-06-10 2005-07-12 Nokia Corporation Power control for a switching mode power amplifier
US7054597B2 (en) 2003-06-25 2006-05-30 Nokia Corporation Power control for a transmitter
DE10337444A1 (de) * 2003-08-14 2005-03-31 Siemens Ag Vorrichtung und Verfahren zur gleichzeitigen Übertragung von mindestens zwei Mobilfunksignalen
US6927627B2 (en) * 2003-09-22 2005-08-09 Motorola, Inc. Amplifier power control in frequency hopping applications and methods
US7457595B2 (en) 2003-10-10 2008-11-25 Nxp B.V. Power saving in a transmitter
US6888409B1 (en) * 2003-10-17 2005-05-03 Intel Corporation High efficiency RF power amplifier
US7015760B2 (en) * 2003-10-22 2006-03-21 Motorola, Inc. Amplifier control based on load impedance and methods
US7177370B2 (en) 2003-12-17 2007-02-13 Triquint Semiconductor, Inc. Method and architecture for dual-mode linear and saturated power amplifier operation
US20050205986A1 (en) * 2004-03-18 2005-09-22 Ikuroh Ichitsubo Module with integrated active substrate and passive substrate
GB2412797A (en) * 2004-04-02 2005-10-05 Motorola Inc RF power amplifier with feedback-controlled dc supply voltage
US7102442B2 (en) 2004-04-28 2006-09-05 Sony Ericsson Mobile Communications Ab Wireless terminals, methods and computer program products with transmit power amplifier input power regulation
CN101040434B (zh) * 2004-05-05 2010-05-26 奥德拉国际销售有限公司 音频放大器
US7109791B1 (en) 2004-07-09 2006-09-19 Rf Micro Devices, Inc. Tailored collector voltage to minimize variation in AM to PM distortion in a power amplifier
US7254371B2 (en) * 2004-08-16 2007-08-07 Micro-Mobio, Inc. Multi-port multi-band RF switch
KR100714165B1 (ko) * 2004-08-27 2007-05-02 삼성전자주식회사 이동 통신 단말에서의 전압 이득 제어 회로
JP4172589B2 (ja) * 2004-08-31 2008-10-29 シャープ株式会社 消費電力制御装置、高周波通信装置、消費電力制御方法および消費電力制御プログラム
US7190221B2 (en) * 2004-10-22 2007-03-13 Nokia Corporation Method and apparatus for maintaining constant linearity for a power amplifier over varying load conditions
US7327803B2 (en) 2004-10-22 2008-02-05 Parkervision, Inc. Systems and methods for vector power amplification
US7355470B2 (en) 2006-04-24 2008-04-08 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including embodiments for amplifier class transitioning
US7262677B2 (en) * 2004-10-25 2007-08-28 Micro-Mobio, Inc. Frequency filtering circuit for wireless communication devices
US7389090B1 (en) 2004-10-25 2008-06-17 Micro Mobio, Inc. Diplexer circuit for wireless communication devices
US7221225B2 (en) 2004-12-03 2007-05-22 Micro-Mobio Dual band power amplifier module for wireless communication devices
US7580687B2 (en) * 2005-01-19 2009-08-25 Micro Mobio Corporation System-in-package wireless communication device comprising prepackaged power amplifier
US7548111B2 (en) * 2005-01-19 2009-06-16 Micro Mobio Corporation Miniature dual band power amplifier with reserved pins
US7769355B2 (en) 2005-01-19 2010-08-03 Micro Mobio Corporation System-in-package wireless communication device comprising prepackaged power amplifier
US7084702B1 (en) * 2005-01-19 2006-08-01 Micro Mobio Corp. Multi-band power amplifier module for wireless communication devices
US7248080B1 (en) 2005-02-24 2007-07-24 National Semiconductor Corporation Power supply switching at circuit block level to reduce integrated circuit input leakage currents
US7436243B1 (en) 2005-02-24 2008-10-14 National Semiconductor Corporation Integrated circuits with on-chip AC noise suppression
US7539467B1 (en) 2005-02-24 2009-05-26 National Semiconductor Corporation Low leakage IC input structures including slaved standby current shut-off and increased gain for tighter hysteresis
US7342387B1 (en) 2005-02-24 2008-03-11 National Semiconductor Corporation System and method for providing a highly efficient wide bandwidth power supply for a power amplifier
US7676239B1 (en) 2005-02-24 2010-03-09 National Semiconductor Corporation System and method for providing a power controller with flat amplitude and phase response
US7398101B2 (en) * 2005-03-01 2008-07-08 Micrel, Inc. Transmitter power level optimization and error correction technique
KR100697281B1 (ko) * 2005-03-17 2007-03-20 삼성전자주식회사 패키지 저항 변화에 따른 임피던스 부정합과 전압강하를방지할 수 있는 수신 방법 및 장치
US7352159B2 (en) * 2005-04-22 2008-04-01 Dell Products L.P. System and method for managing negative voltage in a power supply overvoltage failure event
US7362168B2 (en) * 2005-05-05 2008-04-22 Audera International Sales Inc. Audio amplifier
JP4750463B2 (ja) 2005-05-11 2011-08-17 ルネサスエレクトロニクス株式会社 高周波電力増幅器およびそれを用いた送信器および移動体通信端末
US7336127B2 (en) * 2005-06-10 2008-02-26 Rf Micro Devices, Inc. Doherty amplifier configuration for a collector controlled power amplifier
US7440731B2 (en) * 2005-07-27 2008-10-21 Freescale Semiconductor, Inc. Power amplifier with VSWR detection and correction feature
US20070063982A1 (en) * 2005-09-19 2007-03-22 Tran Bao Q Integrated rendering of sound and image on a display
US7330071B1 (en) 2005-10-19 2008-02-12 Rf Micro Devices, Inc. High efficiency radio frequency power amplifier having an extended dynamic range
US20130078934A1 (en) 2011-04-08 2013-03-28 Gregory Rawlins Systems and Methods of RF Power Transmission, Modulation, and Amplification
KR100644820B1 (ko) * 2005-10-24 2006-11-14 한국전자통신연구원 구동전압 제어 모듈
US7911272B2 (en) 2007-06-19 2011-03-22 Parkervision, Inc. Systems and methods of RF power transmission, modulation, and amplification, including blended control embodiments
US7477204B2 (en) * 2005-12-30 2009-01-13 Micro-Mobio, Inc. Printed circuit board based smart antenna
CN100517995C (zh) * 2006-03-08 2009-07-22 鸿富锦精密工业（深圳）有限公司 无线收发系统
US7420421B1 (en) * 2006-03-16 2008-09-02 The United States Of America As Represented By The Secretary Of The Navy Open-loop RF transmitter output power control for increased power efficiency
GB2438457B (en) * 2006-03-17 2011-09-14 Nujira Ltd Joint optimisation of supply and bias modulation
US7577409B2 (en) * 2006-04-17 2009-08-18 Tai-Her Yang Load-based voltage control wireless transmission system
US8031804B2 (en) 2006-04-24 2011-10-04 Parkervision, Inc. Systems and methods of RF tower transmission, modulation, and amplification, including embodiments for compensating for waveform distortion
US20070270111A1 (en) * 2006-05-19 2007-11-22 Broadcom Corporation Dual power mode transmitter
KR100765790B1 (ko) * 2006-06-30 2007-10-12 삼성전자주식회사 모바일 기기의 가변 전원공급 장치 및 방법
US7456693B2 (en) 2006-06-30 2008-11-25 Infineon Technologies Ag Regulation of an amplification apparatus
US20080003962A1 (en) * 2006-06-30 2008-01-03 Wai Lim Ngai Method and apparatus for providing adaptive supply voltage control of a power amplifier
US7477108B2 (en) * 2006-07-14 2009-01-13 Micro Mobio, Inc. Thermally distributed integrated power amplifier module
US20080032643A1 (en) * 2006-07-20 2008-02-07 Sierra Wireless, Inc. A Canadian Corp. Methods and apparatus for providing input voltages to power amplifiers
US7459969B2 (en) * 2006-08-11 2008-12-02 Broadcom Corporation Transmitter power amplifier working at different power supplies
US7860467B2 (en) 2006-08-29 2010-12-28 Broadcom Corporation Power control for a dual mode transmitter
JP2008124715A (ja) * 2006-11-10 2008-05-29 Nec Corp 高周波電力増幅器
US7679433B1 (en) 2007-02-02 2010-03-16 National Semiconductor Corporation Circuit and method for RF power amplifier power regulation and modulation envelope tracking
FI20075322A0 (fi) * 2007-05-07 2007-05-07 Nokia Corp Teholähteitä RF-tehovahvistimelle
JP5122864B2 (ja) * 2007-05-21 2013-01-16 ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー Ｒｆコイル駆動回路およびｍｒｉ装置
US7868601B1 (en) 2007-06-15 2011-01-11 National Semiconductor Corporation System and method for controlling a regulator circuit for radio frequency power amplifier biases
WO2008156800A1 (en) 2007-06-19 2008-12-24 Parkervision, Inc. Combiner-less multiple input single output (miso) amplification with blended control
EP2171873B1 (en) * 2007-06-28 2019-05-22 Nokia Technologies Oy Radiated power optimization for a mobile radio transmitter/receiver having an antenna
US8588727B2 (en) * 2008-03-21 2013-11-19 Qualcomm Incorporated Adaptive linearity communication device
US8255009B2 (en) 2008-04-25 2012-08-28 Apple Inc. Radio frequency communications circuitry with power supply voltage and gain control
WO2009145887A1 (en) 2008-05-27 2009-12-03 Parkervision, Inc. Systems and methods of rf power transmission, modulation, and amplification
US8587268B1 (en) * 2008-06-18 2013-11-19 National Semiconductor Corporation System and method for providing an active current assist with analog bypass for a switcher circuit
US7944294B2 (en) * 2008-06-27 2011-05-17 Cambridge Silicon Radio Limited Signal amplification
US8995691B2 (en) * 2008-07-14 2015-03-31 Audera Acoustics Inc. Audio amplifier
WO2010007475A1 (en) * 2008-07-17 2010-01-21 Freescale Semiconductor, Inc. System for monitoring and controlling the power of a radio frequency (rf) signal in a short-range rf transmitter
ES2544975T3 (es) * 2008-08-01 2015-09-07 Arris Group, Inc. Sistema CATV con control adaptativo de potencia
US8331883B2 (en) 2008-10-30 2012-12-11 Apple Inc. Electronic devices with calibrated radio frequency communications circuitry
US8107903B2 (en) * 2008-11-07 2012-01-31 Triquint Semiconductor, Inc. Radio frequency amplification circuit utilizing variable voltage generator
US8116703B2 (en) 2008-12-08 2012-02-14 Apple Inc. Wireless transmitter calibration using device receiver
US8258874B2 (en) * 2008-12-31 2012-09-04 Advanced Energy Industries, Inc. Dual-mode control of a power generator
US8165642B2 (en) 2009-05-13 2012-04-24 Apple Inc. Electronic device with data-rate-dependent power amplifier bias
TWI482429B (zh) * 2009-07-03 2015-04-21 Chi Mei Comm Systems Inc 無線通訊裝置及其功放效率控制模組
JP2011172206A (ja) * 2010-01-21 2011-09-01 Panasonic Corp 高周波電力増幅器及びそれを備える無線通信装置
JP2011160031A (ja) * 2010-01-29 2011-08-18 Ricoh Co Ltd 音声音楽再生装置
US8362649B2 (en) 2010-06-18 2013-01-29 R2 Semiconductor, Inc. Multi-use voltage regulator
CN101938258B (zh) * 2010-08-27 2013-06-05 华为终端有限公司 一种控制射频功率放大器发射信号的方法和装置
US8913970B2 (en) 2010-09-21 2014-12-16 Apple Inc. Wireless transceiver with amplifier bias adjusted based on modulation scheme
CN102420711B (zh) * 2010-09-28 2014-04-30 鸿富锦精密工业（深圳）有限公司 网络通信设备及其侦测负载异常的方法
TWI450509B (zh) * 2010-10-07 2014-08-21 Hon Hai Prec Ind Co Ltd 網路通訊設備及其偵測負載異常的方法
US8738066B2 (en) 2010-10-07 2014-05-27 Apple Inc. Wireless transceiver with amplifier bias adjusted based on modulation scheme and transmit power feedback
TWI430565B (zh) * 2010-12-10 2014-03-11 Novatek Microelectronics Corp 可調適放大電路
CN102158078B (zh) * 2011-01-21 2014-01-01 华为终端有限公司 一种功放供电电路及终端
US8525595B2 (en) 2011-01-27 2013-09-03 Rf Micro Devices, Inc. Vramp limiting using resistors
US8269558B1 (en) 2011-03-01 2012-09-18 National Semiconductor Corporation Power supply controller for a multi-gain step RF power amplifier
JP6174574B2 (ja) 2011-06-02 2017-08-02 パーカーヴィジョン インコーポレイテッド アンテナ制御
US8937987B2 (en) 2011-07-29 2015-01-20 Google Technology Holdings LLC Pulse frequency modulation (PFM) mode lock out for regulators when receive signal quality is low
WO2014159753A1 (en) * 2013-03-14 2014-10-02 Quantance, Inc. Et system with adjustment for noise
GB2517496A (en) * 2013-08-23 2015-02-25 Nujira Ltd Optimisation of envelope tracked power amplifier
EP3047348B1 (en) * 2013-09-17 2025-03-19 Parkervision, Inc. Method for rendering an information bearing function of time
US9602056B2 (en) * 2014-09-19 2017-03-21 Skyworks Solutions, Inc. Amplifier with base current reuse
CN111740710B (zh) * 2020-06-03 2025-04-01 唯捷创芯(天津)电子技术股份有限公司 射频功率放大器、射频前端模块和通信终端

Family Cites Families (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109992A (en) * 1958-01-23 1963-11-05 Collins Radio Co Temperature-stabilized and distortionless diode detector
US3274505A (en) * 1964-02-28 1966-09-20 Tektronix Inc Series transistor circuit with selectively coupled stages
US3374442A (en) * 1965-09-30 1968-03-19 Avco Corp Bias control circuit
GB1467057A (en) * 1973-05-24 1977-03-16 Rca Corp Amplifier with over-current protection
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
US4523155A (en) * 1983-05-04 1985-06-11 Motorola, Inc. Temperature compensated automatic output control circuitry for RF signal power amplifiers with wide dynamic range
US4578648A (en) * 1984-04-16 1986-03-25 Werrbach Donn R Dynamic verification gate circuit
US4636741A (en) * 1985-11-01 1987-01-13 Motorola, Inc. Multi-level power amplifying circuitry for portable radio transceivers
CA1266707A (en) * 1985-12-16 1990-03-13 Steve S. Yang Method of calibrating and equalizing a multi-channel automatic gain control amplifier
US4760347A (en) * 1987-01-20 1988-07-26 Novatel Communications Ltd. Controlled-output amplifier and power detector therefor
JPH02285817A (ja) * 1989-04-27 1990-11-26 Nec Corp 無線送信機
WO1991000653A1 (en) * 1989-06-30 1991-01-10 Nippon Telegraph And Telephone Corporation Linear transmitter
US4994757A (en) * 1989-11-01 1991-02-19 Motorola, Inc. Efficiency improvement of power amplifiers
US5446756A (en) * 1990-03-19 1995-08-29 Celsat America, Inc. Integrated cellular communications system
US5126688A (en) 1990-03-20 1992-06-30 Oki Electric Co., Ltd. Power amplifying apparatus for wireless transmitter
US5182527A (en) * 1990-03-30 1993-01-26 Oki Electric Industry Co., Ltd. Power amplifying apparatus for wireless transmitter
US5030922A (en) 1990-04-03 1991-07-09 Thomson Consumer Electronics, Inc. Supply current compensation circuitry
US5081425A (en) 1990-05-24 1992-01-14 E-Systems, Inc. Vswr adaptive power amplifier system
JPH0440105A (ja) 1990-06-06 1992-02-10 Oki Electric Ind Co Ltd 線形化増幅回路
JPH07118617B2 (ja) 1990-07-19 1995-12-18 沖電気工業株式会社 電力増幅装置及び送信装置
US5129098A (en) * 1990-09-24 1992-07-07 Novatel Communication Ltd. Radio telephone using received signal strength in controlling transmission power
KR960000775B1 (ko) 1990-10-19 1996-01-12 닛본덴기 가부시끼가이샤 고주파 전력 증폭기의 출력레벨 제어회로
US5204613A (en) 1991-05-02 1993-04-20 Wavetek Microwave, Inc. Rf power sensor having improved linearity over greater dynamic range
TW225619B (pt) * 1991-07-19 1994-06-21 Nippon Electric Co
US5192919A (en) * 1991-10-03 1993-03-09 Motorola, Inc. Transmitter having a temperature adjusted power amplifier
US5311143A (en) 1992-07-02 1994-05-10 Motorola, Inc. RF amplifier bias control method and apparatus
US5404586A (en) * 1992-09-29 1995-04-04 Fujitsu Ltd. Transmitter having automatic power controller
WO1994011799A1 (en) 1992-11-10 1994-05-26 Motorola, Inc. Switching regulator and amplifier system
JP3325348B2 (ja) * 1992-12-28 2002-09-17 株式会社東芝 電力増幅装置
JPH06334541A (ja) 1993-05-25 1994-12-02 Sony Corp 無線送信機
US5381115A (en) 1993-08-30 1995-01-10 Hughes Aircraft Company Method and apparatus for regulating output power of signal amplifier
CA2135816C (en) * 1993-11-19 2000-02-15 Takashi Enoki Transmission circuit with improved gain control loop
IT1272933B (it) 1994-01-28 1997-07-01 Fujitsu Ltd Dispositivo a circuito integrato di semiconduttore
US5640691A (en) * 1994-12-19 1997-06-17 Lucent Technologies Inc. Power controller for RF transmitters
US5559471A (en) * 1994-12-21 1996-09-24 Motorola, Inc. Amplifier and biasing circuit therefor
JPH08204587A (ja) * 1995-01-23 1996-08-09 Fujitsu Ltd 携帯電話機
US5608353A (en) 1995-03-29 1997-03-04 Rf Micro Devices, Inc. HBT power amplifier
US5678209A (en) * 1995-03-31 1997-10-14 Lucent Technologies Inc. Transmit power level detection circuit with enhanced gain characteristics
IL117831A0 (en) * 1995-04-21 1996-08-04 Qualcomm Inc Temperature compensated automatic gain control
US5689815A (en) * 1995-05-04 1997-11-18 Oki Telecom, Inc. Saturation prevention system for radio telephone with open and closed loop power control systems
FI101505B1 (fi) 1995-05-10 1998-06-30 Nokia Mobile Phones Ltd Menetelmä suuntakytkimellä toteutetun tehonmittauksen parantamiseksi pienillä tehotasoilla
US5613229A (en) * 1995-05-17 1997-03-18 Motorola, Inc. Voltage and current mode power regulator
US5834977A (en) 1995-10-31 1998-11-10 Sanyo Electric Co., Ltd. Amplifying circuit with power supply switching circuit
JPH09260957A (ja) 1996-01-18 1997-10-03 Fujitsu Ltd 半導体増幅回路
US5892397A (en) 1996-03-29 1999-04-06 Spectrian Adaptive compensation of RF amplifier distortion by injecting predistortion signal derived from respectively different functions of input signal amplitude
US5710519A (en) 1996-03-29 1998-01-20 Spectrian Circuit for automatically biasing RF power transistor by use of on-chip temperature-sensing transistor
JPH1022756A (ja) * 1996-07-04 1998-01-23 Mitsubishi Electric Corp 無線送信機およびその送信制御方法
US5777519A (en) 1996-07-18 1998-07-07 Simopoulos; Anastasios V. High efficiency power amplifier
US5757237A (en) 1996-08-28 1998-05-26 Motorola, Inc. Method for dynamically biasing an amplifier and circuit therefor
JPH10163772A (ja) 1996-10-04 1998-06-19 Sanyo Electric Co Ltd 電力増幅器およびチップキャリヤ
US5892403A (en) 1997-03-18 1999-04-06 Telefonaktiebolaget Lm Ericsson Power interface circuit for a TDMA transmitter
US6148220A (en) 1997-04-25 2000-11-14 Triquint Semiconductor, Inc. Battery life extending technique for mobile wireless applications
US6121842A (en) 1997-05-21 2000-09-19 Raytheon Company Cascode amplifier
DE19732437C1 (de) 1997-07-28 1998-12-24 Siemens Ag Transistor-Verstärkerstufe
US5892396A (en) 1997-07-31 1999-04-06 Motorola, Inc. Method and apparatus for controlling gain of a power amplifier
US6052020A (en) 1997-09-10 2000-04-18 Intel Corporation Low supply voltage sub-bandgap reference
US5990751A (en) 1997-10-16 1999-11-23 Nikon Corporation Method and apparatus for improving power transfer efficiency of an amplifier system
US6163706A (en) 1997-11-18 2000-12-19 Conexant Systems, Inc. Apparatus for and method of improving efficiency of transceivers in radio products
US6049703A (en) 1997-11-28 2000-04-11 Motorola, Inc. Amplifier circuit and method for increasing linearity of the amplifier circuit
KR100272508B1 (ko) 1997-12-12 2000-11-15 김영환 내부전압(vdd) 발생회로
JPH11251849A (ja) 1998-03-04 1999-09-17 Matsushita Electric Ind Co Ltd 高周波電力増幅器
US6064269A (en) 1998-07-31 2000-05-16 Motorola, Inc. Power amplifier with variable input voltage source
US6150872A (en) 1998-08-28 2000-11-21 Lucent Technologies Inc. CMOS bandgap voltage reference
US6239658B1 (en) 1999-08-20 2001-05-29 Prominent Communications Inc. Power consumption control for low noise amplifier
US6242983B1 (en) 1999-11-15 2001-06-05 Industrial Technology Research Institute Control circuit of variable current source in programmable gain amplifier
US6265943B1 (en) 2000-01-27 2001-07-24 Rf Micro Devices, Inc. Integrated RF power sensor that compensates for bias changes
US6362605B1 (en) 2000-08-24 2002-03-26 Sigmatel, Inc. Method and apparatus for providing power to an integrated circuit
US6624702B1 (en) 2002-04-05 2003-09-23 Rf Micro Devices, Inc. Automatic Vcc control for optimum power amplifier efficiency

Also Published As

Publication number Publication date
US6148220A (en) 2000-11-14
WO1998049771A1 (en) 1998-11-05
CA2285236A1 (en) 1998-11-05
US6757526B1 (en) 2004-06-29
US20040192408A1 (en) 2004-09-30
TW374269B (en) 1999-11-11
CN1252905A (zh) 2000-05-10
US7505742B2 (en) 2009-03-17
EP0978163A1 (en) 2000-02-09
IL132512A0 (en) 2001-03-19
JP2001522565A (ja) 2001-11-13
KR20010006525A (ko) 2001-01-26

Similar Documents

Publication Publication Date Title
BR9808608A (pt) Aparelho sem fio móvel e método para controlar o mesmo
BR9713904A (pt) Circuito para controle de potência, e, processo de controle de potência usado por um radiotelefone portátil
CO4340582A1 (es) Metodo y aparatos para conservacion de la energia en un sis- tema de comunicacion
MY133000A (en) Pilot based transmit power control
GB0116424D0 (en) Mechanical device
WO2003056698A3 (en) Power amplifier
BR9911519A (pt) Sistema de armazenagem de energia.
CA2339658A1 (en) Uninterruptible power supply systems, voltage regulators and operating methods employing controlled ferroresonant transformer circuits
AU2002354772A1 (en) Voltage and current source selection system for use in the protection, automation and control of an electric power system
TW200633410A (en) Wireless communication unit and power control system therefor
WO2003055047A3 (en) Dual input voltage adapter system and method
AU2001246573A1 (en) Method and device for decreasing the voltage over a dissipation-type voltage regulator
DK1552319T3 (da) Fremgangsmåde til strömforvaltning i en batteridrevet indretning og batteridrevet indretning
MY127135A (en) Mains frequency synchronous burst mode power supply
JPS6468005A (en) Mosfet incorporating protection function
ATE400922T1 (de) Stromgesteuerter leistungsverstärker
AU1030699A (en) Interface for a lamp operating device
ATE528854T1 (de) Leistungsverstärker mit zwei betriebsarten mit einer gemeinsamen steuereinrichtung
TW336353B (en) Semiconductor circuit
AU4327500A (en) Dual mode power controllers and related methods and radiotelephones
AU4978300A (en) Systems and methods for setting a mode of operation of electronic devices
BR9803545A (pt) Transmissor que possui uma eficiência melhorada adicionada à energia e um rádio que usa o mesmo.
AU2003223286A1 (en) Optically powered and controlled optical switch
ATE474359T1 (de) Doppel-magnetrons mit versorgung durch eine einzige stromversorgung
CA2241585A1 (en) Power supply with re-configurable outputs for different output voltages and method of operation thereof

Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]