SE9701080L - Förstärkningskrets för sändare - Google Patents

Förstärkningskrets för sändare

Info

Publication number
SE9701080L
SE9701080L SE9701080A SE9701080A SE9701080L SE 9701080 L SE9701080 L SE 9701080L SE 9701080 A SE9701080 A SE 9701080A SE 9701080 A SE9701080 A SE 9701080A SE 9701080 L SE9701080 L SE 9701080L
Authority
SE
Sweden
Prior art keywords
signal
agc voltage
amplifying
voltage vagc
variable
Prior art date
Application number
SE9701080A
Other languages
Unknown language ( )
English (en)
Other versions
SE9701080D0 (sv
SE519819C2 (sv
Inventor
Sadao Igarashi
Kazuharu Aoki
Sotoshi Urabe
Original Assignee
Alps Electric Co Ltd
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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Publication of SE9701080D0 publication Critical patent/SE9701080D0/sv
Publication of SE9701080L publication Critical patent/SE9701080L/sv
Publication of SE519819C2 publication Critical patent/SE519819C2/sv

Links

Classifications

    • 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
    • H03G3/3042—Automatic control in amplifiers having semiconductor devices in high-frequency amplifiers or in frequency-changers in modulators, frequency-changers, transmitters or power amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • 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
    • H04B1/02—Transmitters
    • H04B1/04—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transmitters (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Amplifiers (AREA)
SE9701080A 1996-03-29 1997-03-24 Förstärkningskrets, med variabla förstärkningselement och gemensam linjärt varierad AFK-spänning, avsedd för sändare SE519819C2 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07709796A JP3479405B2 (ja) 1996-03-29 1996-03-29 送信機の増幅回路

Publications (3)

Publication Number Publication Date
SE9701080D0 SE9701080D0 (sv) 1997-03-24
SE9701080L true SE9701080L (sv) 1997-09-30
SE519819C2 SE519819C2 (sv) 2003-04-15

Family

ID=13624292

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701080A SE519819C2 (sv) 1996-03-29 1997-03-24 Förstärkningskrets, med variabla förstärkningselement och gemensam linjärt varierad AFK-spänning, avsedd för sändare

Country Status (8)

Country Link
US (1) US5926749A (sv)
JP (1) JP3479405B2 (sv)
KR (1) KR100266505B1 (sv)
CN (1) CN1086863C (sv)
DE (1) DE19713099B4 (sv)
FR (1) FR2746983B1 (sv)
GB (1) GB2311671B (sv)
SE (1) SE519819C2 (sv)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326038A (en) * 1997-06-06 1998-12-09 Nokia Mobile Phones Ltd Signal level balancing in quadrature receiver
US6567647B1 (en) * 1998-03-26 2003-05-20 Ericsson Inc. Low noise radio frequency transceivers including circulators
JP2000031763A (ja) * 1998-07-14 2000-01-28 Fujitsu Ltd 可変利得回路
JP3607097B2 (ja) 1998-10-29 2005-01-05 アルプス電気株式会社 送信回路
FI112741B (sv) 1998-11-26 2003-12-31 Nokia Corp Förfarande och anordning för att sända och mottaga RF-signaler vid olika radiogränssnitt av dataöverföringssystem
US6178313B1 (en) * 1998-12-31 2001-01-23 Nokia Mobile Phones Limited Control of gain and power consumption in a power amplifier
US6341219B1 (en) * 1999-02-05 2002-01-22 Agere Systems Guardian Corp. Single-source automatic power control method and apparatus for frequency-diverse variable-gain stages of a CDMA cellular handset
JP3618055B2 (ja) * 1999-02-05 2005-02-09 富士通株式会社 携帯移動端末および送信装置
JP3592980B2 (ja) 1999-06-29 2004-11-24 株式会社東芝 送信回路及び無線送信装置
JP2001352355A (ja) * 2000-06-08 2001-12-21 Nec Corp ダイレクトコンバージョン受信機及び送受信機
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
JP2002033629A (ja) 2000-07-14 2002-01-31 Nec Corp 利得可変増幅回路、およびそれを備えた端末装置
JP2002076947A (ja) * 2000-08-25 2002-03-15 Sharp Corp 送信機
US6542029B1 (en) * 2000-10-11 2003-04-01 Skyworks Solutions, Inc. Variable-slope variable-gain amplifier
US6657494B2 (en) 2001-09-28 2003-12-02 International Business Machines Corporation Variable gain mixer-amplifier with fixed DC operating voltage level
WO2004057768A1 (ja) * 2002-12-20 2004-07-08 Renesas Technology Corp. 送信回路およびそれを用いた送受信機
KR100546325B1 (ko) * 2003-05-09 2006-01-26 삼성전자주식회사 신호대 잡음비를 최대한 확보하며 최대 이득 부근의 정밀이득 제어로 전력 손실을 감소시키는 자동 이득 제어기,이를 구비한 이동 통신 단말기의 송신 장치 및 그 방법
US7450915B1 (en) * 2003-12-27 2008-11-11 Sequoia Communications Smart transmitter system
JP4752272B2 (ja) * 2005-01-05 2011-08-17 ソニー株式会社 通信装置
JP2011010192A (ja) * 2009-06-29 2011-01-13 Mitsubishi Electric Corp 可変利得増幅器及びそれを用いた移相器
CN104796103A (zh) * 2015-03-30 2015-07-22 苏州锟恩电子科技有限公司 一种可变增益同相放大器装置
CN116137512B (zh) * 2021-11-17 2026-05-05 深圳市中兴微电子技术有限公司 可变增益放大器和发射装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5345250B2 (sv) * 1974-10-02 1978-12-05
US4718116A (en) * 1982-06-01 1988-01-05 Aerotron, Inc. Method and apparatus for receiving a compressed composite signal
JPS60117905A (ja) * 1983-11-30 1985-06-25 Toshiba Corp 差動増幅器
US4816772A (en) * 1988-03-09 1989-03-28 Rockwell International Corporation Wide range linear automatic gain control amplifier
JPH02301308A (ja) * 1989-05-16 1990-12-13 Iwatsu Electric Co Ltd ゲイン可変回路
US5126688A (en) * 1990-03-20 1992-06-30 Oki Electric Co., Ltd. Power amplifying apparatus for wireless transmitter
CA2072582C (en) * 1990-12-20 1996-04-09 Thomas J. Walczak Power control circuitry for a tdma radio frequency transmitter
US5307512A (en) * 1991-06-03 1994-04-26 Motorola, Inc. Power control circuitry for achieving wide dynamic range in a transmitter
US5287555A (en) * 1991-07-22 1994-02-15 Motorola, Inc. Power control circuitry for a TDMA radio frequency transmitter
US5448770A (en) * 1993-04-05 1995-09-05 Motorola, Inc. Temperature-coefficient controlled radio frequency signal detecting circuitry
KR0160687B1 (ko) * 1994-04-29 1999-01-15 김광호 저잡음 증폭기를 갖는 영상신호 수신상치

Also Published As

Publication number Publication date
JP3479405B2 (ja) 2003-12-15
US5926749A (en) 1999-07-20
FR2746983A1 (fr) 1997-10-03
GB2311671A (en) 1997-10-01
CN1086863C (zh) 2002-06-26
KR100266505B1 (ko) 2000-09-15
DE19713099A1 (de) 1997-11-06
DE19713099B4 (de) 2008-02-14
SE9701080D0 (sv) 1997-03-24
FR2746983B1 (fr) 1998-12-31
CN1165430A (zh) 1997-11-19
GB9705725D0 (en) 1997-05-07
JPH09270649A (ja) 1997-10-14
KR970068134A (ko) 1997-10-13
SE519819C2 (sv) 2003-04-15
GB2311671B (en) 2000-07-19

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Legal Events

Date Code Title Description
NUG Patent has lapsed