FR2851700B1 - Circuit de modulation d'impulsions en largeur commande par courant et amplificateur en classe d comprenant ce circuit - Google Patents

Circuit de modulation d'impulsions en largeur commande par courant et amplificateur en classe d comprenant ce circuit

Info

Publication number
FR2851700B1
FR2851700B1 FR0400914A FR0400914A FR2851700B1 FR 2851700 B1 FR2851700 B1 FR 2851700B1 FR 0400914 A FR0400914 A FR 0400914A FR 0400914 A FR0400914 A FR 0400914A FR 2851700 B1 FR2851700 B1 FR 2851700B1
Authority
FR
France
Prior art keywords
circuit
amplifier
class
current control
pulse modulation
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
FR0400914A
Other languages
English (en)
Other versions
FR2851700A1 (fr
Inventor
Jong Haeng Lee
Jeong In Lee
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
Original Assignee
Samsung Electronics 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
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of FR2851700A1 publication Critical patent/FR2851700A1/fr
Application granted granted Critical
Publication of FR2851700B1 publication Critical patent/FR2851700B1/fr
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
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
    • 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
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • 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
    • H03F3/2178—Class D power amplifiers; Switching amplifiers using more than one switch or switching amplifier in parallel or in series
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • 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)
  • Multimedia (AREA)
  • Amplifiers (AREA)
FR0400914A 2003-02-04 2004-01-30 Circuit de modulation d'impulsions en largeur commande par courant et amplificateur en classe d comprenant ce circuit Expired - Lifetime FR2851700B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR10-2003-0006875A KR100496883B1 (ko) 2003-02-04 2003-02-04 전류 제어 피더블유엠 회로 및 이를 포함하는 클래스 디이앰프

Publications (2)

Publication Number Publication Date
FR2851700A1 FR2851700A1 (fr) 2004-08-27
FR2851700B1 true FR2851700B1 (fr) 2006-05-12

Family

ID=36144647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0400914A Expired - Lifetime FR2851700B1 (fr) 2003-02-04 2004-01-30 Circuit de modulation d'impulsions en largeur commande par courant et amplificateur en classe d comprenant ce circuit

Country Status (3)

Country Link
US (2) US6998894B2 (fr)
KR (1) KR100496883B1 (fr)
FR (1) FR2851700B1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4622423B2 (ja) * 2004-09-29 2011-02-02 日本テキサス・インスツルメンツ株式会社 パルス幅変調信号発生回路
JP4424546B2 (ja) * 2005-01-13 2010-03-03 Ｏｋｉセミコンダクタ株式会社 パルス幅変調回路
JP4623286B2 (ja) * 2005-03-25 2011-02-02 日本電気株式会社 デューティ調整回路
US8465291B2 (en) 2006-01-27 2013-06-18 Zimmer Dental, Inc Dental patient models
TWI336166B (en) * 2006-02-20 2011-01-11 Realtek Semiconductor Corp Digital amplifier and thereof method
US7411427B1 (en) * 2006-07-28 2008-08-12 Zilog, Inc. Clock input filter circuit
JP4100455B1 (ja) * 2007-01-22 2008-06-11 オンキヨー株式会社 パルス幅変調回路及びそれを用いたスイッチングアンプ
US7705672B1 (en) * 2007-02-12 2010-04-27 Manuel De Jesus Rodriguez Buck converters as power amplifier
KR100935440B1 (ko) * 2007-05-09 2010-01-06 삼성전자주식회사 데이터 옵셋의 제어를 통해 전류 소모량을 개선한 ｐｗｍ방식의 데이터 처리 장치 및 그 방법
US20090274321A1 (en) * 2008-04-30 2009-11-05 Lear Corporation Audio amplifier and technique for power efficiency thereof
JP2010081189A (ja) * 2008-09-25 2010-04-08 Oki Semiconductor Co Ltd 信号処理装置
TWI396954B (zh) * 2009-11-11 2013-05-21 Richtek Technology Corp 用於變頻式電壓調節器的頻率控制電路及方法
JP5625437B2 (ja) * 2010-03-30 2014-11-19 セイコーエプソン株式会社 手術機器
WO2011161911A1 (fr) 2010-06-25 2011-12-29 パナソニック株式会社 Appareil amplificateur
WO2012033655A1 (fr) * 2010-09-10 2012-03-15 Marvell World Trade Ltd Réduction des interférences électromagnétiques pour les systèmes à commutation de signaux
US8237371B2 (en) * 2010-10-29 2012-08-07 O2 Micro, Inc Differential driving circuit for powering a light source
JP5482885B1 (ja) * 2012-12-28 2014-05-07 オンキヨー株式会社 パルス幅変調回路及びスイッチングアンプ
CN109727447B (zh) * 2016-06-15 2021-09-07 湖南工业大学 机车速度检测信号过滤方法
KR102534116B1 (ko) * 2017-12-21 2023-05-19 삼성디스플레이 주식회사 Dc-dc 컨버터, 이를 포함하는 표시 장치
US10771020B1 (en) * 2019-02-15 2020-09-08 Fluke Corporation Class D transconductance amplifier

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1379848A (en) * 1972-07-25 1975-01-08 Peak Technologies Ltd Patient monitoring
JPS5967719A (ja) * 1982-10-09 1984-04-17 Nippon Gakki Seizo Kk パルス幅変調回路
IT1215247B (it) * 1985-03-13 1990-01-31 Ates Componenti Elettron Dispositivo e procedimento per azzerare un segnale di uscita in un amplificatore a commutazione.
DE4205989C2 (de) * 1992-02-27 1994-12-22 Mannesmann Kienzle Gmbh Schaltungsanordnung für einen Geber
GB2268647B (en) * 1992-07-02 1996-04-10 Motorola Inc Voltage controlled oscillator
DE4408442A1 (de) * 1994-03-12 1995-09-14 Telefunken Microelectron Schaltungsanordnung zum Regeln der Drehzahl eines elektrischen Motors
US5498989A (en) * 1994-04-19 1996-03-12 Xilinx, Inc. Integrated circuit one shot with extended length output pulse
US5907254A (en) * 1996-02-05 1999-05-25 Chang; Theodore H. Reshaping periodic waveforms to a selected duty cycle
US5805020A (en) * 1996-06-27 1998-09-08 Harris Corporation Silent start class D amplifier
US5767740A (en) * 1996-09-27 1998-06-16 Harris Corporation Switching amplifier closed loop dual comparator modulation technique
US5949282A (en) * 1998-02-25 1999-09-07 National Semiconductor Corporation Class D amplifier no low pass filter feedback with zero phase delay
US6707320B2 (en) * 2001-11-30 2004-03-16 Sun Microsystems, Inc. Clock detect indicator
US6819154B2 (en) * 2003-02-03 2004-11-16 Intersil Americas Inc. Constant deadtime control in a feed forward enabled pulse width modulator controller

Also Published As

Publication number Publication date
US20040201407A1 (en) 2004-10-14
KR100496883B1 (ko) 2005-06-23
FR2851700A1 (fr) 2004-08-27
US7151404B2 (en) 2006-12-19
US6998894B2 (en) 2006-02-14
US20060077005A1 (en) 2006-04-13
KR20040070695A (ko) 2004-08-11

Similar Documents

Publication Publication Date Title
FR2851700B1 (fr) Circuit de modulation d'impulsions en largeur commande par courant et amplificateur en classe d comprenant ce circuit
NO20001058D0 (no) Tilbakekoplingstyrt lavspent strømkrets
DE60106924D1 (de) Abgasreinigungsvorrichtung
DE60015881D1 (de) Niedrigspannungs elektrochirurgisches Gerät
DE60216774D1 (de) Abgasreinigungsvorrichtung
DE69833126D1 (de) Betätigungsvorrichtung
DE69942955D1 (de) Vorrichtung zur Pulsbreitenmodulationssteuerung mit Standby-Modus
FR2863114B1 (fr) Dispositif d'alimentation electrique continue
DE60013521D1 (de) Feldemissionsvorrichtung
FR2796341B1 (fr) Dispositif de commande
DE60131510D1 (de) Abgasreinigungsvorrichtung
DE59807292D1 (de) Schaltungsvorrichtung zur Stromregelung
DE59914005D1 (de) Schaltvorrichtung
DE59813694D1 (de) Spannungsregelschaltung
FR2855665B1 (fr) Dispositif de commande de generateur
FR2813360B1 (fr) Dispositif de commande
FR2792108B1 (fr) Electroaimant a courant continu
DE60043550D1 (de) Impulsbreitensteuerschaltung
DE69803341D1 (de) Speicherkondensator-Ladestromeinstellungsvorrichtung
ATA65398A (de) Steuervorrichtung
DE60024784D1 (de) Feldemissionsanordnung
FR2860538B1 (fr) Dispositif de commande d'ouverture d'ouvrant
FR2856850B1 (fr) Dispositif d'alimentation electrique
FR2814007B1 (fr) Oscillateur commande en tension
DE60217802D1 (de) Durch niedrige Spannung gesteuertes Mikroschaltbauelement

Legal Events

Date Code Title Description
PLFP Fee payment

Year of fee payment: 13

PLFP Fee payment

Year of fee payment: 14

PLFP Fee payment

Year of fee payment: 15

PLFP Fee payment

Year of fee payment: 17

PLFP Fee payment

Year of fee payment: 18

PLFP Fee payment

Year of fee payment: 19

PLFP Fee payment

Year of fee payment: 20