JP2008511247A - 増幅器装置及び方法 - Google Patents

増幅器装置及び方法 Download PDF

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Publication number
JP2008511247A
JP2008511247A JP2007529784A JP2007529784A JP2008511247A JP 2008511247 A JP2008511247 A JP 2008511247A JP 2007529784 A JP2007529784 A JP 2007529784A JP 2007529784 A JP2007529784 A JP 2007529784A JP 2008511247 A JP2008511247 A JP 2008511247A
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Japan
Prior art keywords
amplifier
signal
load
output
class
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Pending
Application number
JP2007529784A
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English (en)
Japanese (ja)
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JP2008511247A5 (https=
Inventor
潤 牧野
ブン・ジェー・ティン
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Creative Technology Ltd
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Creative Technology Ltd
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Publication date
Application filed by Creative Technology Ltd filed Critical Creative Technology Ltd
Publication of JP2008511247A publication Critical patent/JP2008511247A/ja
Publication of JP2008511247A5 publication Critical patent/JP2008511247A5/ja
Pending legal-status Critical Current

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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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP2007529784A 2004-08-26 2005-08-22 増幅器装置及び方法 Pending JP2008511247A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
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
JP2008511247A true JP2008511247A (ja) 2008-04-10
JP2008511247A5 JP2008511247A5 (https=) 2008-09-04

Family

ID=35942253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007529784A Pending JP2008511247A (ja) 2004-08-26 2005-08-22 増幅器装置及び方法

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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
JP2000049613A (ja) * 1998-07-31 2000-02-18 Sharp Corp ディジタルスイッチングアンプ
JP2000295049A (ja) * 1998-03-10 2000-10-20 Sharp Corp ディジタルスイッチングアンプ
US20020089316A1 (en) * 2000-11-30 2002-07-11 Gang Liu High-efficiency H-bridge circuit and method using switched and linear stages
JP2002539660A (ja) * 1999-03-09 2002-11-19 トリパス テクノロジー インコーポレイテッド 混合信号出力のノイズシェーピングのための方法および装置
JP2003101357A (ja) * 2001-09-21 2003-04-04 Yamaha Corp Ｄ級増幅器

Family Cites Families (11)

* 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
US5115203A (en) * 1990-06-25 1992-05-19 Rockwell International Corporation Digital power amplifier
KR100226226B1 (ko) 1997-02-24 1999-10-15 윤덕용 혼합형 증폭기
KR20000002541A (ko) * 1998-06-22 2000-01-15 김덕중 오디오 전원 증폭기
DE69934966T2 (de) * 1999-01-28 2007-11-08 Alcatel Lucent Leistungsverstärkervorrichtung
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
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 (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
JP2000295049A (ja) * 1998-03-10 2000-10-20 Sharp Corp ディジタルスイッチングアンプ
JP2000049613A (ja) * 1998-07-31 2000-02-18 Sharp Corp ディジタルスイッチングアンプ
JP2002539660A (ja) * 1999-03-09 2002-11-19 トリパス テクノロジー インコーポレイテッド 混合信号出力のノイズシェーピングのための方法および装置
US20020089316A1 (en) * 2000-11-30 2002-07-11 Gang Liu High-efficiency H-bridge circuit and method using switched and linear stages
JP2003101357A (ja) * 2001-09-21 2003-04-04 Yamaha Corp Ｄ級増幅器

Also Published As

Publication number Publication date
TWI365600B (en) 2012-06-01
KR101236690B1 (ko) 2013-02-22
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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