KR102234881B1 - 클래스 ab 증폭기에 대한 출력 스테이지 - Google Patents

클래스 ab 증폭기에 대한 출력 스테이지 Download PDF

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KR102234881B1
KR102234881B1 KR1020157032094A KR20157032094A KR102234881B1 KR 102234881 B1 KR102234881 B1 KR 102234881B1 KR 1020157032094 A KR1020157032094 A KR 1020157032094A KR 20157032094 A KR20157032094 A KR 20157032094A KR 102234881 B1 KR102234881 B1 KR 102234881B1
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South Korea
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input
output
transistors
current
class
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Korean (ko)
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KR20150140795A (ko
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마틴 윌슨
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스냅트랙 인코포레이티드
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    • 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

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
KR1020157032094A 2013-04-11 2014-04-11 클래스 ab 증폭기에 대한 출력 스테이지 Active KR102234881B1 (ko)

Applications Claiming Priority (3)

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

Publications (2)

Publication Number Publication Date
KR20150140795A KR20150140795A (ko) 2015-12-16
KR102234881B1 true KR102234881B1 (ko) 2021-03-31

Family

ID=48537120

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020157032094A Active KR102234881B1 (ko) 2013-04-11 2014-04-11 클래스 ab 증폭기에 대한 출력 스테이지

Country Status (7)

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

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

Family Cites Families (24)

* 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
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
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
US5659266A (en) 1996-01-16 1997-08-19 National Semiconductor Corporation Low volatage output stage with improved output drive
KR970063903A (ko) * 1996-02-15 1997-09-12 모리시다 요이치 연산증폭기
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
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
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
CN1173464C (zh) * 2001-09-25 2004-10-27 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
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
JP4789136B2 (ja) 2005-04-07 2011-10-12 ルネサスエレクトロニクス株式会社 演算増幅器
TWI323556B (en) * 2006-07-28 2010-04-11 Realtek Semiconductor Corp Hybrid output stage circuit and related method thereof
CN100578924C (zh) 2007-07-03 2010-01-06 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
JP5606345B2 (ja) * 2011-01-25 2014-10-15 セイコーインスツル株式会社 出力回路
DE102018111042A1 (de) 2018-05-08 2019-11-14 Hema Maschinen- Und Apparateschutz Gmbh Längenvariable Schutzabdeckung

Also Published As

Publication number Publication date
GB201306621D0 (en) 2013-05-29
EP2974009B1 (en) 2017-06-28
JP6470736B2 (ja) 2019-02-13
JP2016516374A (ja) 2016-06-02
CN105122640B (zh) 2018-06-22
WO2014167114A1 (en) 2014-10-16
EP2974009A1 (en) 2016-01-20
US20160036387A1 (en) 2016-02-04
KR20150140795A (ko) 2015-12-16
GB2512916A (en) 2014-10-15
US9819309B2 (en) 2017-11-14
CN105122640A (zh) 2015-12-02

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