KR101236690B1 - 증폭기 장치 및 방법 - Google Patents

증폭기 장치 및 방법 Download PDF

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Publication number
KR101236690B1
KR101236690B1 KR1020077006543A KR20077006543A KR101236690B1 KR 101236690 B1 KR101236690 B1 KR 101236690B1 KR 1020077006543 A KR1020077006543 A KR 1020077006543A KR 20077006543 A KR20077006543 A KR 20077006543A KR 101236690 B1 KR101236690 B1 KR 101236690B1
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KR
South Korea
Prior art keywords
amplifier
load
output
input signal
class
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Expired - Fee Related
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KR1020077006543A
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English (en)
Korean (ko)
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KR20070046937A (ko
Inventor
준 마키노
분기 팅
Original Assignee
크리에이티브 테크놀로지 엘티디
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Publication of KR20070046937A publication Critical patent/KR20070046937A/ko
Application granted granted Critical
Publication of KR101236690B1 publication Critical patent/KR101236690B1/ko
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    • 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
    • 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
    • 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
    • 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
    • H03F3/211—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only using a combination of several 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
    • H03F3/45475—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
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/511—Many discrete supply voltages or currents or voltage levels can be chosen by a control signal in an IC-block amplifier circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/78—A comparator being used in a controlling circuit of an amplifier

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
KR1020077006543A 2004-08-26 2005-08-22 증폭기 장치 및 방법 Expired - Fee Related KR101236690B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/927,351 2004-08-26
US10/927,351 US7106135B2 (en) 2004-08-26 2004-08-26 Amplifier system and method
PCT/SG2005/000286 WO2006022596A1 (en) 2004-08-26 2005-08-22 An amplifier apparatus and method

Publications (2)

Publication Number Publication Date
KR20070046937A KR20070046937A (ko) 2007-05-03
KR101236690B1 true KR101236690B1 (ko) 2013-02-22

Family

ID=35942253

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020077006543A Expired - Fee Related KR101236690B1 (ko) 2004-08-26 2005-08-22 증폭기 장치 및 방법

Country Status (8)

Country Link
US (1) US7106135B2 (https=)
EP (1) EP1787386A4 (https=)
JP (1) JP2008511247A (https=)
KR (1) KR101236690B1 (https=)
CN (1) CN100525076C (https=)
AU (1) AU2005275555B2 (https=)
TW (1) TWI365600B (https=)
WO (1) WO2006022596A1 (https=)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7408414B2 (en) * 2006-03-21 2008-08-05 Leadis Technology, Inc. Distributed class G type amplifier switching method
US7522433B2 (en) * 2006-03-21 2009-04-21 Fairchild Semiconductor Corporation Efficient voltage rail generation
US20070285176A1 (en) * 2006-03-21 2007-12-13 Leadis Technology, Inc. Phase-Slipping Phase-Locked Loop
US20070236295A1 (en) * 2006-03-21 2007-10-11 Leadis Technology, Inc. FM Power Amplifier With Antenna Power Control
US8081785B2 (en) * 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation High efficiency converter providing switching amplifier bias
US7498880B2 (en) * 2006-03-21 2009-03-03 Leadis Technology, Inc. Class L amplifier
US8081777B2 (en) 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation Volume-based adaptive biasing
US8179372B1 (en) 2007-10-01 2012-05-15 Integrated Device Technology, Inc. Electronic display with array context-sensitive search (ACS) technology
US7733178B1 (en) 2007-10-24 2010-06-08 Fairchild Semiconductor Corporation High efficiency audio amplifier
US7750732B1 (en) 2007-12-04 2010-07-06 Fairchild Semiconductor Corporation Adaptive rail amplifier (ARA) technology
US8514015B2 (en) 2008-12-10 2013-08-20 Qualcomm, Incorporated Amplifier with programmable off voltage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000002541A (ko) * 1998-06-22 2000-01-15 김덕중 오디오 전원 증폭기

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3319175A (en) 1964-07-27 1967-05-09 Hugh L Dryden Electronic amplifier with power supply switching
US3585517A (en) 1968-05-01 1971-06-15 Westinghouse Electric Corp High-efficiency power amplifier
JPS51121239A (en) 1975-04-17 1976-10-23 Sony Corp An amplification circuit
JPS59212006A (ja) * 1983-05-18 1984-11-30 Nippon Gakki Seizo Kk 増幅器
JPS61234106A (ja) * 1986-01-29 1986-10-18 Nippon Gakki Seizo Kk 電力増幅器
JPH01137706A (ja) * 1987-11-25 1989-05-30 Nec Corp パルスステップ音声増幅器
US5115203A (en) * 1990-06-25 1992-05-19 Rockwell International Corporation Digital power amplifier
US5329245A (en) * 1993-06-28 1994-07-12 The United States Of America As Represented By The Secretary Of The Navy Hybrid high power amplifier
KR100226226B1 (ko) 1997-02-24 1999-10-15 윤덕용 혼합형 증폭기
JP3369503B2 (ja) * 1998-03-10 2003-01-20 シャープ株式会社 ディジタルスイッチングアンプ
JP3514978B2 (ja) * 1998-07-31 2004-04-05 シャープ株式会社 ディジタルスイッチングアンプ
DE69934966T2 (de) * 1999-01-28 2007-11-08 Alcatel Lucent Leistungsverstärkervorrichtung
US6229390B1 (en) * 1999-03-09 2001-05-08 Tripath Technology, Inc. Methods and apparatus for noise shaping a mixed signal power output
US6373340B1 (en) 2000-08-14 2002-04-16 K. S. Waves, Ltd. High-efficiency audio power amplifier
US6496059B1 (en) 2000-11-17 2002-12-17 Tranh T. Nguyen Clas-N amplifer
US6486643B2 (en) * 2000-11-30 2002-11-26 Analog Technologies, Inc. High-efficiency H-bridge circuit using switched and linear stages
JP3820947B2 (ja) * 2001-09-21 2006-09-13 ヤマハ株式会社 Ｄ級増幅器
DE60334600D1 (de) * 2002-12-17 2010-12-02 Ask Ind Spa Audioleistungsverstärker
JP4072765B2 (ja) * 2003-05-12 2008-04-09 日本ビクター株式会社 電力増幅回路

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000002541A (ko) * 1998-06-22 2000-01-15 김덕중 오디오 전원 증폭기

Also Published As

Publication number Publication date
JP2008511247A (ja) 2008-04-10
TWI365600B (en) 2012-06-01
AU2005275555B2 (en) 2010-06-17
EP1787386A4 (en) 2009-02-18
HK1089003A1 (zh) 2006-11-17
US20060044063A1 (en) 2006-03-02
CN1741370A (zh) 2006-03-01
WO2006022596A1 (en) 2006-03-02
KR20070046937A (ko) 2007-05-03
AU2005275555A1 (en) 2006-03-02
TW200618458A (en) 2006-06-01
CN100525076C (zh) 2009-08-05
EP1787386A1 (en) 2007-05-23
US7106135B2 (en) 2006-09-12

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