SE9901094D0 - Effektförstärkare med låg distorsion - Google Patents

Effektförstärkare med låg distorsion

Info

Publication number
SE9901094D0
SE9901094D0 SE9901094A SE9901094A SE9901094D0 SE 9901094 D0 SE9901094 D0 SE 9901094D0 SE 9901094 A SE9901094 A SE 9901094A SE 9901094 A SE9901094 A SE 9901094A SE 9901094 D0 SE9901094 D0 SE 9901094D0
Authority
SE
Sweden
Prior art keywords
amplifier
envelope
power amplifier
bandwidth
low distortion
Prior art date
Application number
SE9901094A
Other languages
English (en)
Other versions
SE523585C2 (sv
SE9901094L (sv
Inventor
Ronald Gene Myers
Eugene Bernard Sigmon
Robert Michael Jackson
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 SE9901094D0 publication Critical patent/SE9901094D0/sv
Publication of SE9901094L publication Critical patent/SE9901094L/sv
Publication of SE523585C2 publication Critical patent/SE523585C2/sv

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
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
SE9901094A 1997-07-25 1999-03-25 Effektförstärkare med låg distorsion SE523585C2 (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/900,584 US5886572A (en) 1997-07-25 1997-07-25 Method and apparatus for reducing distortion in a power amplifier
PCT/US1998/008556 WO1999005783A1 (en) 1997-07-25 1998-04-28 Low distortion power amplifier

Publications (3)

Publication Number Publication Date
SE9901094D0 true SE9901094D0 (sv) 1999-03-25
SE9901094L SE9901094L (sv) 1999-03-25
SE523585C2 SE523585C2 (sv) 2004-05-04

Family

ID=25412754

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9901094A SE523585C2 (sv) 1997-07-25 1999-03-25 Effektförstärkare med låg distorsion

Country Status (11)

Country Link
US (1) US5886572A (sv)
JP (1) JP2002500846A (sv)
CN (1) CN1234922A (sv)
CA (1) CA2266739A1 (sv)
DE (1) DE19881110T1 (sv)
FI (1) FI990600A (sv)
FR (1) FR2766637B1 (sv)
GB (1) GB2331881B (sv)
SE (1) SE523585C2 (sv)
TW (1) TW432781B (sv)
WO (1) WO1999005783A1 (sv)

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FR2837647B1 (fr) * 2002-03-25 2006-11-24 Canon Kk Emetteur sans fil a consommation de puissance reduite
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JP4199185B2 (ja) * 2004-03-01 2008-12-17 パナソニック株式会社 送信装置及び無線通信装置
JP4536468B2 (ja) * 2004-09-21 2010-09-01 パナソニック株式会社 Ｅ級増幅器、及びｅｅｒ変調増幅装置
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US20070018718A1 (en) * 2005-06-20 2007-01-25 National Sun Yat-Sen University Microwave transmitter and the method for increasing envelope bandwidth
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US7917106B2 (en) * 2006-02-03 2011-03-29 Quantance, Inc. RF power amplifier controller circuit including calibrated phase control loop
US8093946B2 (en) 2006-03-17 2012-01-10 Nujira Limited Joint optimisation of supply and bias modulation
CN101442294B (zh) * 2007-11-23 2011-11-09 瑞昱半导体股份有限公司 放大电路及其改良线性度的方法
CA2668264A1 (en) 2008-06-05 2009-12-05 Raytheon Canada Limited Linearizing technique for power amplifiers
GB2495306B (en) * 2011-10-05 2015-06-24 Nujira Ltd Envelope tracking push-pull or differential power amplifier
JP5624569B2 (ja) 2012-02-17 2014-11-12 株式会社東芝 電力増幅装置
WO2013136860A1 (ja) * 2012-03-12 2013-09-19 日本電気株式会社 送信装置および送信方法
GB2519361B (en) * 2013-10-21 2015-09-16 Nujira Ltd Reduced bandwidth of signal in an envelope path for envelope tracking system
WO2015088857A1 (en) * 2013-12-09 2015-06-18 Marvell World Trade Ltd. Power amplifier with wide band am-am feedback and digital pre-distortion
CN104836574B (zh) * 2015-04-30 2018-03-30 中国科学院微电子研究所 一种自动对齐的包络跟踪功率放大器结构
CN104836536B (zh) * 2015-04-30 2018-09-04 中国科学院微电子研究所 一种基于负反馈的功率放大器结构
US20180054172A1 (en) * 2015-07-27 2018-02-22 Skyworks Solutions, Inc. Devices and methods related to adjusting power provided to power amplifiers
KR102454810B1 (ko) * 2017-05-26 2022-10-13 삼성전기주식회사 옵셋 제거 기능을 갖는 엔벨로프-추적 전류 바이어스 회로
US10505498B2 (en) * 2017-10-24 2019-12-10 Samsung Electro-Mechanics Co., Ltd. Envelope tracking bias circuit and power amplifying device
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CN109813952A (zh) * 2018-12-12 2019-05-28 珠海亿智电子科技有限公司 一种包络检测电路
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Also Published As

Publication number Publication date
GB2331881A (en) 1999-06-02
FI990600A0 (sv) 1999-03-17
SE523585C2 (sv) 2004-05-04
TW432781B (en) 2001-05-01
CN1234922A (zh) 1999-11-10
WO1999005783A1 (en) 1999-02-04
JP2002500846A (ja) 2002-01-08
DE19881110T1 (de) 1999-08-05
FI990600A (sv) 1999-03-17
FR2766637B1 (fr) 2002-10-25
GB2331881B (en) 2002-03-20
FR2766637A1 (fr) 1999-01-29
CA2266739A1 (en) 1999-02-04
GB9905805D0 (en) 1999-05-05
SE9901094L (sv) 1999-03-25
US5886572A (en) 1999-03-23

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