CN104871427B - 多级放大器 - Google Patents

多级放大器 Download PDF

Info

Publication number
CN104871427B
CN104871427B CN201380066206.8A CN201380066206A CN104871427B CN 104871427 B CN104871427 B CN 104871427B CN 201380066206 A CN201380066206 A CN 201380066206A CN 104871427 B CN104871427 B CN 104871427B
Authority
CN
China
Prior art keywords
transistor
output
voltage
channel transistor
stage
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN201380066206.8A
Other languages
English (en)
Chinese (zh)
Other versions
CN104871427A (zh
Inventor
V·翰纳瑟卡兰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
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 CN104871427A publication Critical patent/CN104871427A/zh
Application granted granted Critical
Publication of CN104871427B publication Critical patent/CN104871427B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
    • H03F3/3001—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor with field-effect transistors
    • H03F3/3022—CMOS common source output SEPP 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
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
    • H03F3/45183—Long tailed pairs
    • 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
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/408—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising three power stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/513—Indexing scheme relating to amplifiers the amplifier being made for low supply voltages

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CN201380066206.8A 2012-12-19 2013-12-19 多级放大器 Active CN104871427B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/720,884 US9035699B2 (en) 2012-12-19 2012-12-19 Multi-stage amplifier
US13/720,884 2012-12-19
PCT/US2013/076748 WO2014100512A1 (en) 2012-12-19 2013-12-19 Multi-stage amplifier

Publications (2)

Publication Number Publication Date
CN104871427A CN104871427A (zh) 2015-08-26
CN104871427B true CN104871427B (zh) 2018-04-27

Family

ID=49920687

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380066206.8A Active CN104871427B (zh) 2012-12-19 2013-12-19 多级放大器

Country Status (6)

Country Link
US (1) US9035699B2 (enExample)
EP (1) EP2936676A1 (enExample)
JP (1) JP6324992B2 (enExample)
KR (1) KR20150096736A (enExample)
CN (1) CN104871427B (enExample)
WO (1) WO2014100512A1 (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9438189B2 (en) * 2012-07-26 2016-09-06 Qualcomm Incorporated Low voltage multi-stage amplifier
US9467098B2 (en) * 2014-06-25 2016-10-11 Qualcomm Incorporated Slew rate control boost circuits and methods
US9602056B2 (en) 2014-09-19 2017-03-21 Skyworks Solutions, Inc. Amplifier with base current reuse
US9473120B1 (en) 2015-05-18 2016-10-18 Qualcomm Incorporated High-speed AC-coupled inverter-based buffer with replica biasing
US10048490B2 (en) * 2015-08-18 2018-08-14 Ricoh Company, Ltd. Drive system, video device, image projection device, and drive control method
JP6805568B2 (ja) * 2015-08-18 2020-12-23 株式会社リコー 駆動システム、画像投影装置および駆動制御方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101507105A (zh) * 2006-08-21 2009-08-12 美国思睿逻辑有限公司 控制可选电压音频功率放大器输出级的方法和装置
US7733178B1 (en) * 2007-10-24 2010-06-08 Fairchild Semiconductor Corporation High efficiency audio amplifier
US20120206203A1 (en) * 2011-02-16 2012-08-16 Carmine Cozzolino Dynamic current boost in class ab amplifier for low distortion

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7557658B2 (en) 2004-07-07 2009-07-07 Texas Instruments Incorporated Low voltage amplifier having a class-AB control circuit
US7295074B2 (en) * 2005-03-31 2007-11-13 Beceem Communications Inc. Doherty power amplifier with phase compensation
FR2904739A1 (fr) * 2006-08-04 2008-02-08 St Microelectronics Nv Compensation d'un amplificateur comportant au moins deux etages de gain
JP5522818B2 (ja) * 2007-12-18 2014-06-18 フリースケール セミコンダクター インコーポレイテッド 増幅回路
US7683715B2 (en) 2008-06-27 2010-03-23 Texas Instruments Incorporated Feedback biasing technique for a stage of an amplifier that uses a feedback control loop having low gain
EP2154783B1 (en) 2008-08-14 2012-10-03 STMicroelectronics (Grenoble) SAS Amplifying circuit
US7872531B1 (en) 2009-10-16 2011-01-18 Qualcomm, Incorporated Amplifier bias techniques
GB2484475A (en) 2010-10-11 2012-04-18 Toshiba Res Europ Ltd A power supply modulator for an RF amplifier, using a current-output class G amplifier
FR2966304B1 (fr) 2010-10-18 2013-06-28 St Microelectronics Grenoble 2 Etage de sortie classe ab
US8649744B2 (en) * 2011-09-08 2014-02-11 Alcatel Lucent Radio-frequency transmitter, such as for broadcasting and cellular base stations
US9438189B2 (en) * 2012-07-26 2016-09-06 Qualcomm Incorporated Low voltage multi-stage amplifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101507105A (zh) * 2006-08-21 2009-08-12 美国思睿逻辑有限公司 控制可选电压音频功率放大器输出级的方法和装置
US7733178B1 (en) * 2007-10-24 2010-06-08 Fairchild Semiconductor Corporation High efficiency audio amplifier
US20120206203A1 (en) * 2011-02-16 2012-08-16 Carmine Cozzolino Dynamic current boost in class ab amplifier for low distortion

Also Published As

Publication number Publication date
JP2016501502A (ja) 2016-01-18
US20140167860A1 (en) 2014-06-19
CN104871427A (zh) 2015-08-26
WO2014100512A1 (en) 2014-06-26
JP6324992B2 (ja) 2018-05-16
US9035699B2 (en) 2015-05-19
EP2936676A1 (en) 2015-10-28
KR20150096736A (ko) 2015-08-25

Similar Documents

Publication Publication Date Title
CN104871427B (zh) 多级放大器
KR101670477B1 (ko) 클래스 ab 오디오 증폭기 출력단 전압 보호 방법 및 장치
US7068103B2 (en) Operational transconductance amplifier input driver for class D audio amplifiers
US8035443B2 (en) Amplifier with gain expansion stage
US8279004B2 (en) System for driver amplifier
US8766722B2 (en) Quiescent control circuit for providing control current for an amplifier
US20100134186A1 (en) Low power operational amplifier
US9602070B2 (en) Power amplifying device
EP2489122B1 (en) Amplifier bias techniques
CN102195569A (zh) 功率放大器的共源共栅晶体管的正负反馈的系统和方法
CN203660996U (zh) 高速高增益全差分运算放大器
US7368984B2 (en) Switching class A-B amplifier
CN103346743A (zh) 高速高增益全差分运算放大器
CN100542019C (zh) 运算放大器的输出级电路
CN112187196B (zh) D类功放和电子设备
Abdelfattah Efficient Low Power Headphone Driver
JPH0964657A (ja) プッシュプル電力増幅器

Legal Events

Date Code Title Description
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant