BR0115599A - Circuito de amplificador - Google Patents

Circuito de amplificador

Info

Publication number
BR0115599A
BR0115599A BR0115599-7A BR0115599A BR0115599A BR 0115599 A BR0115599 A BR 0115599A BR 0115599 A BR0115599 A BR 0115599A BR 0115599 A BR0115599 A BR 0115599A
Authority
BR
Brazil
Prior art keywords
power
amplifier
control circuit
circuit
power control
Prior art date
Application number
BR0115599-7A
Other languages
English (en)
Inventor
Mark Harris
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
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR0115599A publication Critical patent/BR0115599A/pt

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

"CIRCUITO DE AMPLIFICADOR". Trata-se de um circuito de amplificador (11) compreende um amplificador (12), um indicador de potência desejada (15), um circuito de controle de potência (14) e um circuito de medição de potência (13). O amplificador (12) amplifica um sinal de entrada, de modo a se produzir um sinal de saída, e tem uma entrada para controlar uma corrente de fornecimento (I) e uma entrada para receber uma voltagem de fornecimento (V) e a corrente de fornecimento (I), para acionamento do amplificador. O circuito de controle de potência calcula e aplica valores tanto para uma voltagem de fornecimento (V) quanto para uma corrente de fornecimento (I), de acordo com qualquer um de uma série de níveis de potência desejados, de modo a se acionar o amplificador com a máxima eficácia dentro de uma ampla faixa de níveis de potência. O circuito de controle de potência pode compreender ainda um circuito de controle de potência, pelo que o ajuste da potência de saída pode ser também efetuado de acordo com uma medição da potência de saída e de um nível desejado de potência de saída.
BR0115599-7A 2000-11-24 2001-11-23 Circuito de amplificador BR0115599A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0028689.8A GB0028689D0 (en) 2000-11-24 2000-11-24 Amplifier circuit
PCT/GB2001/005182 WO2002043240A1 (en) 2000-11-24 2001-11-23 Amplifier circuit

Publications (1)

Publication Number Publication Date
BR0115599A true BR0115599A (pt) 2003-09-02

Family

ID=9903818

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0115599-7A BR0115599A (pt) 2000-11-24 2001-11-23 Circuito de amplificador

Country Status (10)

Country Link
US (1) US7196584B2 (pt)
EP (1) EP1348254B1 (pt)
JP (2) JP2004515101A (pt)
CN (1) CN100347951C (pt)
AU (1) AU2002223882A1 (pt)
BR (1) BR0115599A (pt)
CA (1) CA2429740A1 (pt)
GB (1) GB0028689D0 (pt)
IL (1) IL156052A0 (pt)
WO (1) WO2002043240A1 (pt)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6725021B1 (en) * 2002-06-20 2004-04-20 Motorola, Inc. Method for tuning an envelope tracking amplification system
GB2393595B (en) 2002-09-26 2007-04-04 Qualcomm A transmitter and a method of calibrating power in signals output from a transmitter
US7221907B2 (en) 2003-02-12 2007-05-22 The Boeing Company On orbit variable power high power amplifiers for a satellite communications system
US8024055B1 (en) 2004-05-15 2011-09-20 Sonos, Inc. Method and system for controlling amplifiers
FI119575B (fi) 2004-06-29 2008-12-31 Esju Oy Teholähde ja menetelmä säätää käyttötehoa
GB2425418B (en) * 2005-04-22 2007-09-19 Motorola Inc Amplifier circuit and rf transmitter incorporating the circuit
DE102005061572B4 (de) * 2005-06-28 2008-05-29 Infineon Technologies Ag Leistungsverstärkeranordnung, insbesondere für den Mobilfunk, und Verfahren zum Ermitteln eines Performanceparameters
US7443244B2 (en) * 2005-07-14 2008-10-28 Motorola, Inc. Method and apparatus for controlling a power amplifier supply voltage
GB2446351B (en) 2005-11-28 2011-07-20 Paragon Comm Ltd Method and apparatus for optimizing current consumption of amplifiers with power control
US8258872B1 (en) 2007-06-11 2012-09-04 Sonos, Inc. Multi-tier power supply for audio amplifiers
GB0715254D0 (en) * 2007-08-03 2007-09-12 Wolfson Ltd Amplifier circuit
US8378746B2 (en) * 2008-07-11 2013-02-19 Integrated Device Technology, Inc Voltage-mode line driving circuit having adaptive impedance matching
US9166533B2 (en) 2009-07-30 2015-10-20 Qualcomm Incorporated Bias current monitor and control mechanism for amplifiers
US8816775B2 (en) * 2012-09-13 2014-08-26 Freescale Semiconductor, Inc. Quiescent current determination using in-package voltage measurements
US9136809B2 (en) 2012-11-30 2015-09-15 Qualcomm Incorporated Digital bias adjustment in a variable supply radio frequency power amplifier
CN103248328B (zh) * 2013-05-15 2017-05-24 海能达通信股份有限公司 一种功率放大器和使用方法
US9244516B2 (en) 2013-09-30 2016-01-26 Sonos, Inc. Media playback system using standby mode in a mesh network

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0669002B2 (ja) * 1986-05-23 1994-08-31 日本電信電話株式会社 高周波増幅器
US5081425A (en) * 1990-05-24 1992-01-14 E-Systems, Inc. Vswr adaptive power amplifier system
US5642378A (en) * 1994-11-17 1997-06-24 Denheyer; Brian John Dual mode analog and digital cellular phone
GB2345211B (en) * 1995-05-25 2000-08-09 Motorola Gmbh Programming means for setting optimal bias voltages
US5710523A (en) * 1996-01-16 1998-01-20 Trw Inc. Low noise-low distortion hemt low noise amplifier (LNA) with monolithic tunable HBT active feedback
GB2316561B (en) * 1996-08-22 2001-01-03 Motorola Ltd Improved power amplifier and related method
JPH10242770A (ja) * 1997-02-28 1998-09-11 Akita Denshi Kk 増幅回路の制御方法、増幅回路、増幅回路モジュール、携帯電話機
US6148220A (en) * 1997-04-25 2000-11-14 Triquint Semiconductor, Inc. Battery life extending technique for mobile wireless applications
JPH10322144A (ja) * 1997-05-16 1998-12-04 Matsushita Electric Ind Co Ltd 電力増幅器及びその調整方法
DE19732437C1 (de) * 1997-07-28 1998-12-24 Siemens Ag Transistor-Verstärkerstufe
US5977883A (en) * 1997-07-30 1999-11-02 Leonard; William H. Traffic light control apparatus for emergency vehicles
US6025754A (en) * 1997-11-03 2000-02-15 Harris Corporation Envelope modulated amplifier bias control and method
US6223056B1 (en) * 1997-12-31 2001-04-24 Samsung Electronics Co., Ltd. Systems and methods for dynamically controlling a variable power amplifier
US6081161A (en) * 1998-05-18 2000-06-27 Omnipoint Corporation Amplifier with dynamatically adaptable supply voltage
JP3314724B2 (ja) * 1998-06-02 2002-08-12 日本電気株式会社 電力増幅回路および電力自動制御方法
US6327462B1 (en) * 1998-12-29 2001-12-04 Conexant Systems, Inc. System and method for dynamically varying operational parameters of an amplifier
US6043707A (en) * 1999-01-07 2000-03-28 Motorola, Inc. Method and apparatus for operating a radio-frequency power amplifier as a variable-class linear amplifier
US6198347B1 (en) * 1999-07-29 2001-03-06 Tropian, Inc. Driving circuits for switch mode RF power amplifiers
US6630867B2 (en) * 2000-02-24 2003-10-07 Skyworks Solutions, Inc. Power amplifier with provisions for varying operating voltage based upon power amplifier output power
JP2002151982A (ja) * 2000-11-15 2002-05-24 Hitachi Ltd 高周波電力増幅回路及び無線通信機並びに無線通信システム
US6614309B1 (en) * 2002-02-21 2003-09-02 Ericsson Inc. Dynamic bias controller for power amplifier circuits
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
US6897730B2 (en) * 2003-03-04 2005-05-24 Silicon Laboratories Inc. Method and apparatus for controlling the output power of a power amplifier

Also Published As

Publication number Publication date
JP2009296633A (ja) 2009-12-17
GB0028689D0 (en) 2001-01-10
US7196584B2 (en) 2007-03-27
CN100347951C (zh) 2007-11-07
EP1348254B1 (en) 2014-11-05
CA2429740A1 (en) 2002-05-30
JP2004515101A (ja) 2004-05-20
JP5155265B2 (ja) 2013-03-06
US20040113695A1 (en) 2004-06-17
WO2002043240A1 (en) 2002-05-30
AU2002223882A1 (en) 2002-06-03
IL156052A0 (en) 2003-12-23
EP1348254A1 (en) 2003-10-01
CN1488189A (zh) 2004-04-07

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFIRO O PEDIDO DE ACORDO COM O ARTIGO 8O COMBINADO COM ARTIGO 13 DA LPI.

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: MANTIDO O INDEFERIMENTO UMA VEZ QUE NAO FOI APRESENTADO RECURSO DENTRO DO PRAZO LEGAL.