KR100976444B1 - 파워 앰프 - Google Patents

파워 앰프 Download PDF

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Publication number
KR100976444B1
KR100976444B1 KR1020037008938A KR20037008938A KR100976444B1 KR 100976444 B1 KR100976444 B1 KR 100976444B1 KR 1020037008938 A KR1020037008938 A KR 1020037008938A KR 20037008938 A KR20037008938 A KR 20037008938A KR 100976444 B1 KR100976444 B1 KR 100976444B1
Authority
KR
South Korea
Prior art keywords
pulse
signal
level
circuit
inverted
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.)
Expired - Fee Related
Application number
KR1020037008938A
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English (en)
Korean (ko)
Other versions
KR20040058096A (ko
Inventor
마스다토시히코
오쿠리카즈노부
Original Assignee
소니 주식회사
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Publication date
Application filed by 소니 주식회사 filed Critical 소니 주식회사
Publication of KR20040058096A publication Critical patent/KR20040058096A/ko
Application granted granted Critical
Publication of KR100976444B1 publication Critical patent/KR100976444B1/ko
Anticipated expiration legal-status Critical
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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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • 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
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • 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
    • H03F3/217—Class D power amplifiers; Switching amplifiers
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • 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
    • H03F3/3023—CMOS common source output SEPP amplifiers with asymmetrical driving of the end stage
    • H03F3/3027—CMOS common source output SEPP amplifiers with asymmetrical driving of the end stage using a common source driving stage, i.e. inverting stage
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)
KR1020037008938A 2001-11-19 2002-11-07 파워 앰프 Expired - Fee Related KR100976444B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2001352922 2001-11-19
JPJP-P-2001-00352922 2001-11-19
JPJP-P-2002-00162437 2002-06-04
JP2002162437A JP3894305B2 (ja) 2001-11-19 2002-06-04 パワーアンプ
PCT/JP2002/011597 WO2003044947A1 (fr) 2001-11-19 2002-11-07 Amplificateur de puissance

Publications (2)

Publication Number Publication Date
KR20040058096A KR20040058096A (ko) 2004-07-03
KR100976444B1 true KR100976444B1 (ko) 2010-08-18

Family

ID=26624594

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020037008938A Expired - Fee Related KR100976444B1 (ko) 2001-11-19 2002-11-07 파워 앰프

Country Status (6)

Country Link
US (1) US6917242B2 (https=)
EP (1) EP1447908B1 (https=)
JP (1) JP3894305B2 (https=)
KR (1) KR100976444B1 (https=)
DE (1) DE60239484D1 (https=)
WO (1) WO2003044947A1 (https=)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3894294B2 (ja) * 2001-11-19 2007-03-14 ソニー株式会社 パワーアンプ
JP4765316B2 (ja) * 2002-07-18 2011-09-07 ソニー株式会社 パワーアンプ装置
US7061312B2 (en) * 2003-03-21 2006-06-13 D2Audio Corporation Systems and methods for providing multi channel pulse width modulated audio with staggered outputs
US7929718B1 (en) 2003-05-12 2011-04-19 D2Audio Corporation Systems and methods for switching and mixing signals in a multi-channel amplifier
JP4154601B2 (ja) * 2003-10-23 2008-09-24 ソニー株式会社 信号変換装置、出力アンプ装置、オーディオ装置および送受信システム
JP4587222B2 (ja) * 2005-11-29 2010-11-24 ローム株式会社 Ｄ級アンプ及びこれを備えた音響機器
JP4950223B2 (ja) * 2006-01-24 2012-06-13 ディー２オーディオ コーポレイション 入力音声信号に超音波信号を加えることによってデジタルアンプの性能を改善するためのシステム及び方法
JP4702296B2 (ja) * 2006-01-30 2011-06-15 ヤマハ株式会社 増幅器
US8174316B2 (en) * 2006-10-18 2012-05-08 Apexone Microelectronics Ltd. Switching amplifier
TWI354439B (en) * 2007-06-04 2011-12-11 Holtek Semiconductor Inc Ac signal producer and method thereof
WO2009031952A1 (en) * 2007-09-04 2009-03-12 Telefonaktiebolaget Lm Ericsson (Publ) Signal modulation for switched mode power amplifiers
JP2009147552A (ja) * 2007-12-12 2009-07-02 Panasonic Corp Ｄ級アンプ
JP5099699B2 (ja) * 2008-05-16 2012-12-19 国立大学法人 名古屋工業大学 パルス幅位置変調信号生成装置
WO2010061513A1 (ja) * 2008-11-28 2010-06-03 三菱電機株式会社 相補型パルス幅変調回路、およびデジタルアナログ変換装置
US7986187B1 (en) * 2010-03-04 2011-07-26 Bose Corporation Versatile audio power amplifier
EP2608403A1 (en) * 2011-12-21 2013-06-26 Alcatel Lucent A method for signal modulation using pulse width modulators
US9559642B2 (en) 2015-01-02 2017-01-31 Logitech Europe, S.A. Audio delivery system having an improved efficiency and extended operation time between recharges or battery replacements
WO2019204999A1 (en) * 2018-04-25 2019-10-31 Huawei Technologies Co., Ltd. Method and apparatus for control of optical phase shifters in an optical device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010101501A (ko) * 1999-01-12 2001-11-14 테크니쉐 유니버시테트 아인드호벤 증폭기 회로
KR20010105877A (ko) * 2000-05-19 2001-11-29 배길훈 자동차용 브레이크 시스템의 솔레노이드 밸브

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269758B1 (de) * 1986-12-01 1991-01-23 Deutsche ITT Industries GmbH Stromumschalter
US5398003A (en) * 1994-03-30 1995-03-14 Apple Computer, Inc. Pulse width modulation speaker amplifier
US5617058A (en) * 1995-11-13 1997-04-01 Apogee Technology, Inc. Digital signal processing for linearization of small input signals to a tri-state power switch
US6104248A (en) * 1998-10-23 2000-08-15 Carver; Robert W. Audio amplifier with tracking power supply utilizing inductive power converters
JP2001185961A (ja) * 1999-12-24 2001-07-06 Alpine Electronics Inc デジタルアンプ
JP4387601B2 (ja) * 2000-02-01 2009-12-16 アルパイン株式会社 デジタルアンプ
JP2002158549A (ja) * 2000-11-17 2002-05-31 Sony Corp デジタルパワーアンプ装置
JP2002158544A (ja) * 2000-11-17 2002-05-31 Sony Corp デジタルパワーアンプ

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010101501A (ko) * 1999-01-12 2001-11-14 테크니쉐 유니버시테트 아인드호벤 증폭기 회로
KR20010105877A (ko) * 2000-05-19 2001-11-29 배길훈 자동차용 브레이크 시스템의 솔레노이드 밸브

Also Published As

Publication number Publication date
JP3894305B2 (ja) 2007-03-22
EP1447908A1 (en) 2004-08-18
EP1447908B1 (en) 2011-03-16
KR20040058096A (ko) 2004-07-03
JP2003218647A (ja) 2003-07-31
US20040263244A1 (en) 2004-12-30
US6917242B2 (en) 2005-07-12
DE60239484D1 (de) 2011-04-28
WO2003044947A1 (fr) 2003-05-30
EP1447908A4 (en) 2006-02-01

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