DE102004022354B4 - Schaltung zur Erzeugung pulsweitenmodulierter Signale - Google Patents

Schaltung zur Erzeugung pulsweitenmodulierter Signale Download PDF

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Publication number
DE102004022354B4
DE102004022354B4 DE200410022354 DE102004022354A DE102004022354B4 DE 102004022354 B4 DE102004022354 B4 DE 102004022354B4 DE 200410022354 DE200410022354 DE 200410022354 DE 102004022354 A DE102004022354 A DE 102004022354A DE 102004022354 B4 DE102004022354 B4 DE 102004022354B4
Authority
DE
Germany
Prior art keywords
signal
pulse
pulse width
circuit
reduced
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 - Lifetime
Application number
DE200410022354
Other languages
German (de)
English (en)
Other versions
DE102004022354A1 (de
Inventor
Il-Joong Kim
Goog-Chun Cho
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Digital and Analog Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Digital and Analog Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1020030028174A external-priority patent/KR100604815B1/ko
Application filed by Samsung Electronics Co Ltd, Digital and Analog Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of DE102004022354A1 publication Critical patent/DE102004022354A1/de
Application granted granted Critical
Publication of DE102004022354B4 publication Critical patent/DE102004022354B4/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/305—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in case of switching on or off of a power supply
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE200410022354 2003-05-02 2004-04-29 Schaltung zur Erzeugung pulsweitenmodulierter Signale Expired - Lifetime DE102004022354B4 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2003-0028174 2003-05-02
KR1020030028174A KR100604815B1 (ko) 2003-05-02 2003-05-02 신호 발생장치 및 신호 발생방법
KR03-28174 2003-05-02
US10/672,839 US6987418B2 (en) 2003-05-02 2003-09-26 Sound signal generating apparatus and method for reducing pop noise
US10/672,839 2003-09-26
US10/672839 2003-09-26

Publications (2)

Publication Number Publication Date
DE102004022354A1 DE102004022354A1 (de) 2004-11-25
DE102004022354B4 true DE102004022354B4 (de) 2010-04-01

Family

ID=33422285

Family Applications (1)

Application Number Title Priority Date Filing Date
DE200410022354 Expired - Lifetime DE102004022354B4 (de) 2003-05-02 2004-04-29 Schaltung zur Erzeugung pulsweitenmodulierter Signale

Country Status (4)

Country Link
JP (1) JP2004336765A (nl)
CN (1) CN1607721A (nl)
DE (1) DE102004022354B4 (nl)
NL (1) NL1026088C2 (nl)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100618408B1 (ko) * 2005-05-17 2006-08-31 (주)펄서스 테크놀러지 디지털 앰프용 펄스 폭 변조기, 디지털 앰프의 팝 노이즈감소 방법 및 디지털 앰프
JP2007166190A (ja) * 2005-12-13 2007-06-28 Matsushita Electric Ind Co Ltd Ｄ級アンプ
JP4513021B2 (ja) 2005-12-28 2010-07-28 ソニー株式会社 ディジタルアンプ装置及びディジタルアンプ装置のミュート方法
JP5056360B2 (ja) * 2006-11-15 2012-10-24 セイコーエプソン株式会社 Ｄ級アンプの制御回路および液体噴射装置、印刷装置
JP5230139B2 (ja) 2007-08-07 2013-07-10 セミコンダクター・コンポーネンツ・インダストリーズ・リミテッド・ライアビリティ・カンパニー 音声信号処理装置
JP5026488B2 (ja) 2008-10-28 2012-09-12 旭化成エレクトロニクス株式会社 Ｐｗｍ信号生成回路、ｄ級増幅器及びその駆動方法
JP5776237B2 (ja) * 2011-03-17 2015-09-09 セイコーエプソン株式会社 容量性負荷駆動回路および流体噴射装置
CN103379411A (zh) * 2012-04-13 2013-10-30 立锜科技股份有限公司 降低音频系统启动或关闭时的瞬变信号的控制装置及方法
EP2658117B1 (en) * 2012-04-27 2014-08-20 Nxp B.V. Pop-noise reducing method for adjusting switching frequency or phase in a class-D amplifier
US9473861B1 (en) * 2015-09-16 2016-10-18 Semiconductor Components Industries, Llc Method of forming a semiconductor device and structure therefor
JP7119681B2 (ja) * 2018-07-16 2022-08-17 株式会社デンソー 信号伝達装置及び駆動装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0817371A1 (en) * 1996-06-27 1998-01-07 Harris Corporation Silent start class D amplifier
DE10255352B3 (de) * 2002-11-27 2004-02-12 Infineon Technologies Ag Verfahren und Vorrichtung zur Korrektur von Signalverzerrungen in einer Verstärkereinrichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0666592B2 (ja) * 1989-11-30 1994-08-24 株式会社東芝 電力増幅装置
JPH04281606A (ja) * 1991-03-11 1992-10-07 Matsushita Electric Ind Co Ltd パルス幅変調増幅器
JP2843728B2 (ja) * 1992-12-25 1999-01-06 株式会社ケンウッド パルス幅変調増幅回路
JP4003257B2 (ja) * 1997-07-02 2007-11-07 松下電器産業株式会社 パルス幅変調オーディオアンプ
JPH11346120A (ja) * 1998-03-31 1999-12-14 Matsushita Electric Ind Co Ltd 高効率電力増幅装置
US6118336A (en) * 1998-10-30 2000-09-12 Intersil Corporation Start-up circuit for self oscillating class D modulator
US6362683B1 (en) * 1999-07-29 2002-03-26 Tripath Technology, Inc. Break-before-make distortion compensation for a digital amplifier
EP1184973B1 (en) * 2000-08-29 2007-06-06 STMicroelectronics S.r.l. Power amplification equipment
JP2002344250A (ja) * 2001-05-14 2002-11-29 Victor Co Of Japan Ltd オーディオ用ｍｏｓ・ｆｅｔ電力増幅回路

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0817371A1 (en) * 1996-06-27 1998-01-07 Harris Corporation Silent start class D amplifier
DE10255352B3 (de) * 2002-11-27 2004-02-12 Infineon Technologies Ag Verfahren und Vorrichtung zur Korrektur von Signalverzerrungen in einer Verstärkereinrichtung

Also Published As

Publication number Publication date
NL1026088C2 (nl) 2005-04-07
JP2004336765A (ja) 2004-11-25
NL1026088A1 (nl) 2004-11-03
CN1607721A (zh) 2005-04-20
DE102004022354A1 (de) 2004-11-25

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8364 No opposition during term of opposition
R071 Expiry of right