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 circuitInfo
- 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
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)
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)
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)
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 |
-
2003
- 2003-02-04 KR KR10-2003-0006875A patent/KR100496883B1/ko active IP Right Grant
-
2004
- 2004-01-30 FR FR0400914A patent/FR2851700B1/fr not_active Expired - Lifetime
- 2004-02-04 US US10/771,475 patent/US6998894B2/en not_active Expired - Lifetime
-
2005
- 2005-11-23 US US11/286,089 patent/US7151404B2/en not_active Expired - Fee Related
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 |
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Legal Events
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PLFP | Fee payment |
Year of fee payment: 13 |
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Year of fee payment: 14 |
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Year of fee payment: 15 |
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Year of fee payment: 17 |
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Year of fee payment: 18 |
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Year of fee payment: 19 |
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PLFP | Fee payment |
Year of fee payment: 20 |