CN105122640B - 用于ab类放大器的输出级 - Google Patents

用于ab类放大器的输出级 Download PDF

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Publication number
CN105122640B
CN105122640B CN201480020192.0A CN201480020192A CN105122640B CN 105122640 B CN105122640 B CN 105122640B CN 201480020192 A CN201480020192 A CN 201480020192A CN 105122640 B CN105122640 B CN 105122640B
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China
Prior art keywords
current
output
input
transistor
transistors
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CN201480020192.0A
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English (en)
Chinese (zh)
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CN105122640A (zh
Inventor
M·威尔森
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TDK Electronics AG
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Epcos AG
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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
    • 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
    • H03F3/3028—CMOS common source output SEPP amplifiers with symmetrical driving of the end stage
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
    • H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
    • 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
    • H03F3/34—DC amplifiers in which all stages are DC-coupled
    • H03F3/343—DC amplifiers in which all stages are DC-coupled with semiconductor devices only
    • H03F3/345—DC amplifiers in which all stages are DC-coupled with semiconductor devices only with field-effect devices
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/252—Multiple switches coupled in the input circuit of an amplifier are controlled by a circuit, e.g. feedback circuitry being controlling the switch

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CN201480020192.0A 2013-04-11 2014-04-11 用于ab类放大器的输出级 Active CN105122640B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB13066212 2013-04-11
GB1306621.2A GB2512916A (en) 2013-04-11 2013-04-11 Output stage for class AB amplifier
PCT/EP2014/057429 WO2014167114A1 (en) 2013-04-11 2014-04-11 Output stage for class ab amplifier

Publications (2)

Publication Number Publication Date
CN105122640A CN105122640A (zh) 2015-12-02
CN105122640B true CN105122640B (zh) 2018-06-22

Family

ID=48537120

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201480020192.0A Active CN105122640B (zh) 2013-04-11 2014-04-11 用于ab类放大器的输出级

Country Status (7)

Country Link
US (1) US9819309B2 (enExample)
EP (1) EP2974009B1 (enExample)
JP (1) JP6470736B2 (enExample)
KR (1) KR102234881B1 (enExample)
CN (1) CN105122640B (enExample)
GB (1) GB2512916A (enExample)
WO (1) WO2014167114A1 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107834986B (zh) * 2017-11-21 2020-04-03 中国地质大学（北京） 单级ab类运算跨导放大器及模拟电路
JP7480473B2 (ja) * 2019-03-22 2024-05-10 ヤマハ株式会社 増幅回路
DE102022109563B3 (de) * 2022-04-20 2023-08-03 It'is Foundation Differentielle Strompufferschaltung und Stromquelle mit einer Solchen

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611180A (en) * 1985-01-09 1986-09-09 Crown International, Inc. Grounded bridge amplifier protection through transistor thermo protection
US5140282A (en) * 1990-04-27 1992-08-18 U.S. Philips Corporation Current amplifier arrangement
US5659266A (en) * 1996-01-16 1997-08-19 National Semiconductor Corporation Low volatage output stage with improved output drive
EP0790704A1 (en) * 1996-02-15 1997-08-20 Matsushita Electric Industrial Co., Ltd. Operational amplifier
US6466093B1 (en) * 2000-09-19 2002-10-15 Texas Instruments Incorporated Low voltage low thd CMOS audio (power) amplifier
US6501334B1 (en) * 2000-11-13 2002-12-31 Texas Instruments Incorporated Actively biased class AB output stage with low quiescent power, high output current drive and wide output voltage swing
CN1411140A (zh) * 2001-09-25 2003-04-16 义隆电子股份有限公司 可低电压工作的运算放大器
US6583669B1 (en) * 2002-04-08 2003-06-24 National Semiconductor Corporation Apparatus and method for a compact class AB turn-around stage with low noise, low offset, and low power consumption
CN1845452A (zh) * 2005-04-07 2006-10-11 恩益禧电子股份有限公司 具有较小偏移的运算放大器
CN101110575A (zh) * 2007-07-03 2008-01-23 华为技术有限公司 输出级电路、功率放大电路及电信号的处理方法
CN102624340A (zh) * 2011-01-25 2012-08-01 精工电子有限公司 输出电路

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5718107A (en) * 1980-07-09 1982-01-29 Nippon Gakki Seizo Kk Amplifying circuit
US5162753A (en) * 1991-11-27 1992-11-10 At&T Bell Laboratories Amplifier arrangement for use as a line driver
JP2762333B2 (ja) * 1992-12-22 1998-06-04 ローム株式会社 増幅回路及び信号増幅ｉｃ
JP3414899B2 (ja) * 1995-07-31 2003-06-09 ローム株式会社 オーディオ信号増幅回路およびこれを用いた音響機器
JPH09186577A (ja) * 1996-01-05 1997-07-15 Kawasaki Steel Corp 出力バッファ回路
US5856749A (en) * 1996-11-01 1999-01-05 Burr-Brown Corporation Stable output bias current circuitry and method for low-impedance CMOS output stage
US6188284B1 (en) * 1999-04-23 2001-02-13 Lucent Technologies Inc. Distributed gain line driver amplifier including improved linearity
JP3528725B2 (ja) * 1999-12-01 2004-05-24 ヤマハ株式会社 電力増幅回路
JP3535836B2 (ja) * 2001-02-09 2004-06-07 Ｎｅｃエレクトロニクス株式会社 電力増幅回路
US6433637B1 (en) * 2001-03-23 2002-08-13 National Semiconductor Corporation Single cell rail-to-rail input/output operational amplifier
JP4443889B2 (ja) * 2003-10-14 2010-03-31 旭化成エレクトロニクス株式会社 差動増幅器
TWI323556B (en) * 2006-07-28 2010-04-11 Realtek Semiconductor Corp Hybrid output stage circuit and related method thereof
DE102018111042A1 (de) 2018-05-08 2019-11-14 Hema Maschinen- Und Apparateschutz Gmbh Längenvariable Schutzabdeckung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611180A (en) * 1985-01-09 1986-09-09 Crown International, Inc. Grounded bridge amplifier protection through transistor thermo protection
US5140282A (en) * 1990-04-27 1992-08-18 U.S. Philips Corporation Current amplifier arrangement
US5659266A (en) * 1996-01-16 1997-08-19 National Semiconductor Corporation Low volatage output stage with improved output drive
EP0790704A1 (en) * 1996-02-15 1997-08-20 Matsushita Electric Industrial Co., Ltd. Operational amplifier
US6466093B1 (en) * 2000-09-19 2002-10-15 Texas Instruments Incorporated Low voltage low thd CMOS audio (power) amplifier
US6501334B1 (en) * 2000-11-13 2002-12-31 Texas Instruments Incorporated Actively biased class AB output stage with low quiescent power, high output current drive and wide output voltage swing
CN1411140A (zh) * 2001-09-25 2003-04-16 义隆电子股份有限公司 可低电压工作的运算放大器
US6583669B1 (en) * 2002-04-08 2003-06-24 National Semiconductor Corporation Apparatus and method for a compact class AB turn-around stage with low noise, low offset, and low power consumption
CN1845452A (zh) * 2005-04-07 2006-10-11 恩益禧电子股份有限公司 具有较小偏移的运算放大器
CN101110575A (zh) * 2007-07-03 2008-01-23 华为技术有限公司 输出级电路、功率放大电路及电信号的处理方法
CN102624340A (zh) * 2011-01-25 2012-08-01 精工电子有限公司 输出电路

Also Published As

Publication number Publication date
GB201306621D0 (en) 2013-05-29
CN105122640A (zh) 2015-12-02
US20160036387A1 (en) 2016-02-04
WO2014167114A1 (en) 2014-10-16
KR102234881B1 (ko) 2021-03-31
JP2016516374A (ja) 2016-06-02
JP6470736B2 (ja) 2019-02-13
GB2512916A (en) 2014-10-15
EP2974009A1 (en) 2016-01-20
US9819309B2 (en) 2017-11-14
EP2974009B1 (en) 2017-06-28
KR20150140795A (ko) 2015-12-16

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