+

WO2008105073A1 - 送信装置 - Google Patents

送信装置 Download PDF

Info

Publication number
WO2008105073A1
WO2008105073A1 PCT/JP2007/053649 JP2007053649W WO2008105073A1 WO 2008105073 A1 WO2008105073 A1 WO 2008105073A1 JP 2007053649 W JP2007053649 W JP 2007053649W WO 2008105073 A1 WO2008105073 A1 WO 2008105073A1
Authority
WO
WIPO (PCT)
Prior art keywords
signal
envelope signal
envelope
pulse width
amplifier
Prior art date
Application number
PCT/JP2007/053649
Other languages
English (en)
French (fr)
Inventor
Hitomaro Tougou
Shinji Ookawa
Tsutomu Hibino
Shiro Masumoto
Original Assignee
Panasonic Corporation
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 Panasonic Corporation filed Critical Panasonic Corporation
Priority to PCT/JP2007/053649 priority Critical patent/WO2008105073A1/ja
Publication of WO2008105073A1 publication Critical patent/WO2008105073A1/ja

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
    • 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
    • H03F1/0244—Stepped control
    • H03F1/025—Stepped control by using a signal derived from the input signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/102—A non-specified detector of a signal envelope being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/432—Two or more amplifiers of different type are coupled in parallel at the input or output, e.g. a class D and a linear amplifier, a class B and a class A amplifier

Landscapes

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

Abstract

　送信信号のエンベロープ信号に基づく電源電圧を電力増幅器の電源端子に供給し、電力増幅器によって広ダイナミックレンジ信号についても高効率かつ低歪で増幅することができる送信装置。この装置において、エンベロープ信号の信号レベルに応じて、エンベロープ信号を、基準レベル以下の第１のエンベロープ信号区間の信号と、基準レベルより大きい第２のエンベロープ信号区間の信号とに分離するレベル分離器と、第１のエンベロープ信号区間のエンベロープ信号をパルス幅変調するパルス幅変調器と、第２のエンベロープ信号区間のエンベロープ信号を線形増幅する増幅器と、パルス幅変調信号に基づきスイッチング動作し、パルス幅変調信号を増幅するトランジスタと、電力増幅器の電源端子に供給される、増幅器の出力信号とトランジスタの出力信号との合成信号、又は合成前のトランジスタの出力信号を平滑化する平滑回路と、を有する。
PCT/JP2007/053649 2007-02-27 2007-02-27 送信装置 WO2008105073A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/053649 WO2008105073A1 (ja) 2007-02-27 2007-02-27 送信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/053649 WO2008105073A1 (ja) 2007-02-27 2007-02-27 送信装置

Publications (1)

Publication Number Publication Date
WO2008105073A1 true WO2008105073A1 (ja) 2008-09-04

Family

ID=39720919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/053649 WO2008105073A1 (ja) 2007-02-27 2007-02-27 送信装置

Country Status (1)

Country Link
WO (1) WO2008105073A1 (ja)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010089971A1 (ja) * 2009-02-05 2010-08-12 日本電気株式会社 電力増幅器及び電力増幅方法
WO2011013420A1 (ja) * 2009-07-31 2011-02-03 日本電気株式会社 電力増幅装置、電力増幅方法および記憶媒体
JP2011249892A (ja) * 2010-05-24 2011-12-08 Mitsubishi Electric Corp バイアス制御増幅器
GB2482738A (en) * 2010-08-13 2012-02-15 Nujira Ltd Envelope tracked power supply
JP5287999B2 (ja) * 2009-11-17 2013-09-11 日本電気株式会社 増幅装置
EP2704319A1 (en) * 2012-08-28 2014-03-05 Samsung Electronics Co., Ltd Audio device and output method thereof
JP2016505230A (ja) * 2013-02-01 2016-02-18 スナップトラック・インコーポレーテッド 包絡線追跡変調器の線形増幅器の改善された効率
CN113839627A (zh) * 2020-06-24 2021-12-24 中兴通讯股份有限公司 包络放大器、包络跟踪功率放大器以及信号处理方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000049542A (ja) * 1998-07-31 2000-02-18 Roland Corp 増幅回路
JP2003500873A (ja) * 1999-05-17 2003-01-07 エリクソン インコーポレイテッド 振幅波形の高低周波数部分を別々に増幅する電力変調装置及び方法
JP2005020696A (ja) * 2003-06-24 2005-01-20 Northrop Grumman Corp マルチモード増幅システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000049542A (ja) * 1998-07-31 2000-02-18 Roland Corp 増幅回路
JP2003500873A (ja) * 1999-05-17 2003-01-07 エリクソン インコーポレイテッド 振幅波形の高低周波数部分を別々に増幅する電力変調装置及び方法
JP2005020696A (ja) * 2003-06-24 2005-01-20 Northrop Grumman Corp マルチモード増幅システム

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110279180A1 (en) * 2009-02-05 2011-11-17 Nec Corporation Power amplifier and power amplifying method
WO2010089971A1 (ja) * 2009-02-05 2010-08-12 日本電気株式会社 電力増幅器及び電力増幅方法
US8620240B2 (en) 2009-02-05 2013-12-31 Nec Corporation Power amplifier and power amplifying method
CN102308474B (zh) * 2009-02-05 2015-08-26 日本电气株式会社 功率放大器和功率放大方法
JP5516423B2 (ja) * 2009-02-05 2014-06-11 日本電気株式会社 電力増幅器及び電力増幅方法
JP5533870B2 (ja) * 2009-07-31 2014-06-25 日本電気株式会社 電力増幅装置および方法
WO2011013420A1 (ja) * 2009-07-31 2011-02-03 日本電気株式会社 電力増幅装置、電力増幅方法および記憶媒体
US8594589B2 (en) 2009-07-31 2013-11-26 Nec Corporation Power amplifier, power amplification method, and storage medium
JP5287999B2 (ja) * 2009-11-17 2013-09-11 日本電気株式会社 増幅装置
JP2011249892A (ja) * 2010-05-24 2011-12-08 Mitsubishi Electric Corp バイアス制御増幅器
GB2482738A (en) * 2010-08-13 2012-02-15 Nujira Ltd Envelope tracked power supply
GB2482738B (en) * 2010-08-13 2015-05-13 Nujira Ltd Switch mode power supply for envelope tracking
US9391510B2 (en) 2010-08-13 2016-07-12 Snaptrack, Inc. Switch mode power supply for envelope tracking
EP2704319A1 (en) * 2012-08-28 2014-03-05 Samsung Electronics Co., Ltd Audio device and output method thereof
US9484876B2 (en) 2012-08-28 2016-11-01 Samsung Electronics Co., Ltd. Control of a switched mode power supply and linear power supply for an audio device
JP2016505230A (ja) * 2013-02-01 2016-02-18 スナップトラック・インコーポレーテッド 包絡線追跡変調器の線形増幅器の改善された効率
CN113839627A (zh) * 2020-06-24 2021-12-24 中兴通讯股份有限公司 包络放大器、包络跟踪功率放大器以及信号处理方法
EP4156511A4 (en) * 2020-06-24 2024-05-29 ZTE Corporation ENVELOPE AMPLIFIERS, ENVELOPE TRACKING POWER AMPLIFIERS AND SIGNAL PROCESSING METHODS

Similar Documents

Publication Publication Date Title
WO2008105073A1 (ja) 送信装置
WO2007123792A3 (en) Switching power amplifier
WO2010008226A3 (en) Switching power amplifier and method of controlling the same
WO2008112041A3 (en) Power supply providing ultrafast modulation of output voltage
TW200518535A (en) High performance modulator architecture for the outphasing rf amplifier
WO2009060652A1 (ja) 電力増幅器およびこれを備える電波送信機
WO2008090721A1 (ja) 電力増幅器
KR101800726B1 (ko) 전력 증폭기의 효율을 개선하기 위한 장치 및 방법
WO2009082582A3 (en) Method and apparatus for direct digital to radio frequency conversion
WO2004102788A3 (en) Rf amplifier employing active load linearization
TW200603534A (en) Radio frequency low noise amplifier with automatic gain control
EP2582041A3 (en) Apparatus and Method for Interleaving Switching in Power Amplifier
GB2442924A (en) A method and apparatus for increasing the efficiency of low power amplifiers
TW200703884A (en) Miller-compensated amplifier
WO2008088025A1 (ja) 増幅回路及び無線通信装置
WO2006062831A3 (en) Voltage clamp for improved transient performance of a collector voltage controlled power amplifier
ATE525801T1 (de) Schaltkreis mit einem leistungsverstärker und verstärkungsverfahren
WO2009139814A3 (en) Modified distributed amplifier to improve low frequency efficiency and noise figure
WO2009123568A8 (en) High efficiency linear transmitter
HK1099417A1 (en) A power multiplier system and method
WO2015145097A1 (en) Amplifier circuitry for envelope modulators, envelope modulators incorporating said amplifier circuitry and method of modulating a signal envelope
CN103477555B (zh) 效率优化的多尔蒂放大器
JP2009206675A (ja) 電力増幅器
WO2009041097A1 (ja) 電力増幅回路ならびにそれを用いた送信機および無線通信機
CN102355204B (zh) 一种音频功放自动切换电路及功放芯片

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07737451

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 07737451

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: JP

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载