IL156052A0 - Amplifier circuit - Google Patents

Amplifier circuit

Info

Publication number
IL156052A0
IL156052A0 IL15605201A IL15605201A IL156052A0 IL 156052 A0 IL156052 A0 IL 156052A0 IL 15605201 A IL15605201 A IL 15605201A IL 15605201 A IL15605201 A IL 15605201A IL 156052 A0 IL156052 A0 IL 156052A0
Authority
IL
Israel
Prior art keywords
amplifier circuit
amplifier
circuit
Prior art date
Application number
IL15605201A
Other languages
English (en)
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 IL156052A0 publication Critical patent/IL156052A0/xx

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)
IL15605201A 2000-11-24 2001-11-23 Amplifier circuit IL156052A0 (en)

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
IL156052A0 true IL156052A0 (en) 2003-12-23

Family

ID=9903818

Family Applications (1)

Application Number Title Priority Date Filing Date
IL15605201A IL156052A0 (en) 2000-11-24 2001-11-23 Amplifier circuit

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
US8107902B2 (en) * 2005-11-28 2012-01-31 Paragon Communications 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
GB0028689D0 (en) 2001-01-10
JP2004515101A (ja) 2004-05-20
AU2002223882A1 (en) 2002-06-03
WO2002043240A1 (en) 2002-05-30
JP2009296633A (ja) 2009-12-17
BR0115599A (pt) 2003-09-02
CN100347951C (zh) 2007-11-07
CN1488189A (zh) 2004-04-07
CA2429740A1 (en) 2002-05-30
EP1348254A1 (en) 2003-10-01
US20040113695A1 (en) 2004-06-17
US7196584B2 (en) 2007-03-27
EP1348254B1 (en) 2014-11-05
JP5155265B2 (ja) 2013-03-06

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