DE602004004230D1 - Klasse-D Verstärker - Google Patents

Klasse-D Verstärker

Info

Publication number
DE602004004230D1
DE602004004230D1 DE602004004230T DE602004004230T DE602004004230D1 DE 602004004230 D1 DE602004004230 D1 DE 602004004230D1 DE 602004004230 T DE602004004230 T DE 602004004230T DE 602004004230 T DE602004004230 T DE 602004004230T DE 602004004230 D1 DE602004004230 D1 DE 602004004230D1
Authority
DE
Germany
Prior art keywords
amplifier
class
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.)
Active
Application number
DE602004004230T
Other languages
English (en)
Other versions
DE602004004230T2 (de
Inventor
Sehat Sutardja
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.)
Marvell World Trade Ltd
Original Assignee
Marvell World Trade 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 Marvell World Trade Ltd filed Critical Marvell World Trade Ltd
Publication of DE602004004230D1 publication Critical patent/DE602004004230D1/de
Application granted granted Critical
Publication of DE602004004230T2 publication Critical patent/DE602004004230T2/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • H03F3/20—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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/421—Multiple switches coupled in the output circuit of an amplifier are controlled by a 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
DE602004004230T 2003-11-06 2004-05-14 Klasse-D Verstärker Active DE602004004230T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US703135 2003-11-06
US10/703,135 US7190224B2 (en) 2003-11-06 2003-11-06 Class D amplifier

Publications (2)

Publication Number Publication Date
DE602004004230D1 true DE602004004230D1 (de) 2007-02-22
DE602004004230T2 DE602004004230T2 (de) 2007-11-15

Family

ID=34435561

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602004004230T Active DE602004004230T2 (de) 2003-11-06 2004-05-14 Klasse-D Verstärker

Country Status (6)

Country Link
US (5) US7190224B2 (de)
EP (1) EP1530286B1 (de)
JP (1) JP4015648B2 (de)
CN (1) CN100508372C (de)
DE (1) DE602004004230T2 (de)
TW (1) TWI337805B (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7190224B2 (en) * 2003-11-06 2007-03-13 Marvell World Trade Ltd. Class D amplifier
JP2006211523A (ja) * 2005-01-31 2006-08-10 Asahi Kasei Microsystems Kk デジタルスイッチング回路
EP2365117B1 (de) 2005-07-28 2014-12-31 Nanocomp Technologies, Inc. Vorrichtung und Verfahren zum Formen und Erhalten von Nanofaservlies
US7279973B1 (en) * 2005-09-23 2007-10-09 Ami Semiconductor Belgium Bvba H-bridge utilizing intermediate switching phase(s)
JP4585970B2 (ja) * 2006-01-05 2010-11-24 Ｏｋｉセミコンダクタ株式会社 パルス幅変調装置
US8284963B2 (en) * 2007-09-11 2012-10-09 Texas Instruments Incorporated Method and apparatus for diminishing mismatch effects between switched signals
US7791521B2 (en) * 2008-04-01 2010-09-07 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
US7701307B2 (en) * 2008-04-01 2010-04-20 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
US7598895B1 (en) * 2008-04-01 2009-10-06 Silicon Laboratories, Inc. System and method of altering a PWM carrier power spectrum
GB2459304B (en) * 2008-04-18 2013-02-20 Nujira Ltd Improved pulse width modulation
US8995691B2 (en) 2008-07-14 2015-03-31 Audera Acoustics Inc. Audio amplifier
US7746123B2 (en) * 2008-09-09 2010-06-29 Texas Instruments Incorporated Switching system with reduced EMI
US8269475B2 (en) * 2009-02-17 2012-09-18 Texas Instruments Incorporated Class DH amplifier
US8130128B2 (en) 2010-03-30 2012-03-06 Silicon Laboratores Inc. System and method for generating shaped noise
TWI429192B (zh) * 2010-06-14 2014-03-01 Upi Semiconductor Corp 功率放大器及具有功率放大器的處理裝置
WO2012116720A1 (en) 2011-02-28 2012-09-07 Widex A/S Hearing aid with an h-bridge output stage and a method of driving an output stage
DE102011115503A1 (de) * 2011-10-11 2013-04-11 Astrium Gmbh Messung des Ausgangstroms einer Verstärkerschaltung
CN102545855B (zh) * 2012-01-17 2017-04-05 南京航空航天大学 基于闭环控制的功率开关管驱动方法及系统
DE102015212232B4 (de) * 2015-06-30 2020-03-05 TRUMPF Hüttinger GmbH + Co. KG Leistungscombiner zur Kopplung von Hochfrequenzsignalen und Leistungscombineranordnung mit einem solchen Leistungscombiner
US10033366B2 (en) * 2016-12-22 2018-07-24 Silanna Asia Pte Ltd Minimum pulse-width assurance
JP6819776B2 (ja) * 2017-05-19 2021-01-27 ヤマハ株式会社 音響処理装置および音響処理装置の制御方法

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56136008A (en) 1980-03-28 1981-10-23 Pioneer Electronic Corp Pulse-width modulating and amplifying circuit
US4404511A (en) * 1980-10-23 1983-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Motor power factor controller with a reduced voltage starter
US4584566A (en) * 1984-12-21 1986-04-22 Honeywell Inc. Analog to digital converter
US4791341A (en) * 1988-01-19 1988-12-13 General Electric Company Speed reducing control system for a polyphase electric motor
GB2247793A (en) * 1990-09-06 1992-03-11 Motorola Inc Control of pulse power amplifier rise and fall
US5077539A (en) 1990-12-26 1991-12-31 Apogee Technology, Inc. Switching amplifier
US5204809A (en) 1992-04-03 1993-04-20 International Business Machines Corporation H-driver DC-to-DC converter utilizing mutual inductance
US5479134A (en) * 1993-09-20 1995-12-26 Rohm Co., Ltd. Power amplifier circuit for audio signal and audio device using the same
US5479337A (en) * 1993-11-30 1995-12-26 Kaiser Aerospace And Electronics Corporation Very low power loss amplifier for analog signals utilizing constant-frequency zero-voltage-switching multi-resonant converter
US5841313A (en) * 1995-08-30 1998-11-24 Cherry Semiconductor Corporation Switch with programmable delay
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
EP1028524B1 (de) * 1999-02-11 2004-08-18 STMicroelectronics S.r.l. PWM Leistungsverstärker mit digitalem Eingang
US6049473A (en) * 1999-02-11 2000-04-11 Delta Electronics, Inc. Harmonic-injection control technique for three-phase, discontinuous-conduction-mode, high-power-factor boost rectifiers with improved line-transient response
US6430220B1 (en) * 2000-09-19 2002-08-06 Apogee Technology Inc. Distortion reduction method and apparatus for linearization of digital pulse width modulation by efficient calculation
US6348781B1 (en) * 2000-12-11 2002-02-19 Motorola, Inc. Buck or boost power converter
US6362986B1 (en) 2001-03-22 2002-03-26 Volterra, Inc. Voltage converter with coupled inductive windings, and associated methods
US7200187B2 (en) * 2001-07-26 2007-04-03 O'brien Thomas J Modulator for digital amplifier
FR2829653A1 (fr) * 2001-09-07 2003-03-14 St Microelectronics Sa Dispositif d'alimentation a decoupage adapte pour les faibles consommations de courant, et telephone cellulaire dote d'un tel dispositif
US6552607B1 (en) * 2001-11-12 2003-04-22 Apogee Technology Inc. Time division multiplexed PWM amplifier
KR100435182B1 (ko) * 2002-02-05 2004-06-09 주식회사 디지털앤아날로그 Ｐｗｍ 부궤환에 의한 디지털 ｐｗｍ 입력 ｄ급 음향 증폭기
CA2414965A1 (en) * 2002-12-23 2004-06-23 Alan Bayko Amplifier
US7002406B2 (en) * 2003-05-16 2006-02-21 Texas Instruments Incorporated Loop filter for class D amplifiers
US6847257B2 (en) * 2003-05-23 2005-01-25 Maxim Integrated Products, Inc. Efficient minimum pulse spread spectrum modulation for filterless class D amplifiers
US7378904B2 (en) * 2003-10-15 2008-05-27 Texas Instruments Incorporated Soft transitions between muted and unmuted states in class D audio amplifiers
US7190224B2 (en) 2003-11-06 2007-03-13 Marvell World Trade Ltd. Class D amplifier
US7298209B1 (en) 2003-11-06 2007-11-20 Marvell World Trade Ltd. Class D amplifier
KR100588334B1 (ko) * 2005-03-29 2006-06-09 삼성전자주식회사 슈도 슈미트 트리거 회로를 이용한 디시-디시 컨버터 및펄스 폭 변조방법
US7262658B2 (en) * 2005-07-29 2007-08-28 Texas Instruments Incorporated Class-D amplifier system

Also Published As

Publication number Publication date
TWI337805B (en) 2011-02-21
US20090102556A1 (en) 2009-04-23
US7190224B2 (en) 2007-03-13
US7884670B2 (en) 2011-02-08
US20050099231A1 (en) 2005-05-12
TW200516842A (en) 2005-05-16
CN100508372C (zh) 2009-07-01
EP1530286A1 (de) 2005-05-11
EP1530286B1 (de) 2007-01-10
US7242248B1 (en) 2007-07-10
CN1614882A (zh) 2005-05-11
US20100111331A1 (en) 2010-05-06
US7646240B2 (en) 2010-01-12
US7468631B1 (en) 2008-12-23
DE602004004230T2 (de) 2007-11-15
JP4015648B2 (ja) 2007-11-28
JP2005143077A (ja) 2005-06-02

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