DE69704188D1 - Schaltverstärker mit Zwei-Komparator-Modulation und Gegenkopplung - Google Patents

Schaltverstärker mit Zwei-Komparator-Modulation und Gegenkopplung

Info

Publication number
DE69704188D1
DE69704188D1 DE69704188T DE69704188T DE69704188D1 DE 69704188 D1 DE69704188 D1 DE 69704188D1 DE 69704188 T DE69704188 T DE 69704188T DE 69704188 T DE69704188 T DE 69704188T DE 69704188 D1 DE69704188 D1 DE 69704188D1
Authority
DE
Germany
Prior art keywords
negative feedback
switch amplifier
comparator
modulation
comparator 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
DE69704188T
Other languages
English (en)
Inventor
John K Fogg
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.)
Harris Corp
Original Assignee
Harris Corp
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 Harris Corp filed Critical Harris Corp
Application granted granted Critical
Publication of DE69704188D1 publication Critical patent/DE69704188D1/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
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
    • 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
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE69704188T 1996-09-27 1997-09-23 Schaltverstärker mit Zwei-Komparator-Modulation und Gegenkopplung Expired - Lifetime DE69704188D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/722,354 US5767740A (en) 1996-09-27 1996-09-27 Switching amplifier closed loop dual comparator modulation technique

Publications (1)

Publication Number Publication Date
DE69704188D1 true DE69704188D1 (de) 2001-04-12

Family

ID=24901509

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69704188T Expired - Lifetime DE69704188D1 (de) 1996-09-27 1997-09-23 Schaltverstärker mit Zwei-Komparator-Modulation und Gegenkopplung

Country Status (6)

Country Link
US (1) US5767740A (de)
EP (1) EP0833443B1 (de)
JP (1) JPH10126170A (de)
KR (1) KR19980025038A (de)
DE (1) DE69704188D1 (de)
TW (1) TW348341B (de)

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US5917369A (en) * 1998-02-25 1999-06-29 National Semiconductor Corporation Pulse width modulator with automatic gain control over-voltage modulator and limiter
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US6157252A (en) * 1998-09-09 2000-12-05 The Engineering Consortium, Inc. Battery polarity insensitive integrated circuit amplifier
US6107875A (en) * 1998-10-15 2000-08-22 Intersil Corporation Variable frequency class D modulator with built in soft clipping and frequency limiting
US6108182A (en) * 1998-10-30 2000-08-22 Intersil Corporation Overcurrent sensing circuit and self adjusting blanking
GB2343573A (en) * 1998-11-04 2000-05-10 Applic Solutions Ltd An efficient PWM switched amplifier with variable carrier frequency
CA2380705A1 (en) * 1999-03-29 2000-10-05 Zahid Ansari Method and apparatus for providing pulse width modulation
DE19929841C2 (de) * 1999-06-29 2001-07-12 Jan Quellmann Getakteter Verstärker, insbesondere zur Verstärkung von Audiosignalen
JP3813045B2 (ja) * 2000-02-29 2006-08-23 ローム株式会社 Ｈブリッジドライバ
US6441685B1 (en) * 2000-03-17 2002-08-27 Jl Audio, Inc. Amplifier circuit and method for providing negative feedback thereto
US6404251B1 (en) * 2000-03-27 2002-06-11 Linear Technology Corporation Systems and methods for linearly varying a pulse-width modulation signal with a control signal
US6882219B2 (en) 2000-03-31 2005-04-19 Ling Dynamic Systems High frequency switch-mode power amplifier
GB2360889B (en) * 2000-03-31 2004-04-28 Ling Dynamic Systems High frequency switch-mode power amplifier
JP2002034286A (ja) * 2000-07-17 2002-01-31 Nec Corp Ｈブリッジ型モータ駆動回路
WO2002058229A1 (en) * 2001-01-18 2002-07-25 Dlogix Co., Ltd. Digital power amplifier
US6724305B2 (en) * 2001-05-25 2004-04-20 Golden West Sales Pulse induction silverware detector
US6817900B2 (en) * 2001-07-31 2004-11-16 Yazaki Corporation Electrical connector having terminal locking structure
JP4434557B2 (ja) * 2001-07-31 2010-03-17 ヤマハ株式会社 電力増幅回路
US20030095000A1 (en) * 2001-11-16 2003-05-22 Acoustic Technology, Inc. Apparatus with ultra high output power class D audio amplifier
EP1351380A1 (de) * 2002-04-02 2003-10-08 Dialog Semiconductor GmbH Energiesteuerung für Klasse-D Verstärker
KR100496883B1 (ko) * 2003-02-04 2005-06-23 삼성전자주식회사 전류 제어 피더블유엠 회로 및 이를 포함하는 클래스 디이앰프
US6847257B2 (en) * 2003-05-23 2005-01-25 Maxim Integrated Products, Inc. Efficient minimum pulse spread spectrum modulation for filterless class D amplifiers
JP2005057519A (ja) * 2003-08-05 2005-03-03 Onkyo Corp パルス幅変調回路およびこの回路を備えたスイッチングアンプ
JP2005064661A (ja) * 2003-08-08 2005-03-10 Onkyo Corp パルス幅変調回路およびこの回路を備えたスイッチングアンプ
JP3928728B2 (ja) * 2003-09-19 2007-06-13 ソニー株式会社 デジタルアンプ
JP4566566B2 (ja) * 2004-01-21 2010-10-20 パナソニック株式会社 電力増幅装置
US6998910B2 (en) * 2004-01-22 2006-02-14 Texas Instruments Incorporated Amplifier using delta-sigma modulation
KR20070065375A (ko) * 2004-09-14 2007-06-22 코닌클리즈케 필립스 일렉트로닉스 엔.브이. 펄스폭 변조 장치
ATE521133T1 (de) * 2005-09-28 2011-09-15 Yamaha Corp Klasse d verstärker
US7778324B2 (en) * 2005-11-18 2010-08-17 Harman International Industries, Incorporated System for dynamic time offsetting in interleaved power amplifiers
US7598714B2 (en) * 2006-07-12 2009-10-06 Harman International Industries, Incorporated Amplifier employing interleaved signals for PWM ripple suppression
US7446603B2 (en) * 2006-08-17 2008-11-04 Matsushita Electric Industrial Co., Ltd. Differential input Class D amplifier
WO2008032782A1 (fr) * 2006-09-14 2008-03-20 Nec Corporation Unité d'amplification, procédé de commande de sortie et programme de commande
TWM312857U (en) * 2006-11-20 2007-05-21 Princeton Technology Corp Speaker system of utilizing pulse width modulation signals for saving power consumption
US7705672B1 (en) * 2007-02-12 2010-04-27 Manuel De Jesus Rodriguez Buck converters as power amplifier
JP5022840B2 (ja) * 2007-09-13 2012-09-12 ローム株式会社 増幅装置及びこれを用いた音響機器
KR101169912B1 (ko) 2011-03-15 2012-08-06 주식회사 동부하이텍 대칭 신호 출력 장치 및 증폭기 회로 장치
US8829945B2 (en) 2011-07-05 2014-09-09 Silicon Laboratories Inc. Circuit and method for dynamic biasing of an output stage
US8410851B1 (en) 2011-09-12 2013-04-02 Wen-Hsiung Hsieh Switching amplifier with an inductor
US8228118B1 (en) 2011-09-17 2012-07-24 Wen-Hsiung Hsieh Switching amplifier using capacitor for transmitting energy
US8212613B1 (en) 2011-09-21 2012-07-03 Wen-Hsiung Hsieh Switching amplifier using flyback transformer
KR101272595B1 (ko) * 2011-12-12 2013-06-11 기아자동차주식회사 Ｄｃ 모터용 스위칭 소자 제어 장치 및 방법
TWI499202B (zh) * 2012-06-14 2015-09-01 Princeton Technology Corp 可降低電磁干擾的ｄ類功率放大器及三角波產生器電路
KR101390519B1 (ko) * 2012-06-20 2014-05-27 한양대학교 에리카산학협력단 전동기 드라이브용 다상 인버터
JP6186135B2 (ja) * 2013-02-26 2017-08-23 京セラ株式会社 Ｄ級アンプおよび電子機器
KR20150080683A (ko) * 2014-01-02 2015-07-10 삼성전자주식회사 스위칭 앰프 및 이를 포함하는 음향 기기
CN103883508A (zh) * 2014-04-19 2014-06-25 湖南科技学院 一种电子式气泵自动控制装置

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US3579132A (en) * 1969-11-14 1971-05-18 Ltv Ling Altec Inc Class {37 d{38 {0 linear audio amplifier
JPS5754968B2 (de) * 1974-06-06 1982-11-20
JPS5829646B2 (ja) * 1974-11-02 1983-06-24 ソニー株式会社 パルス幅変調増幅器
JPS6017167B2 (ja) * 1978-05-23 1985-05-01 ソニー株式会社 パルス巾変調信号増幅回路
JPS57170606A (en) * 1981-04-10 1982-10-20 Sony Corp Amplifying circuit for pulse-width-modulated signal
US4403196A (en) * 1981-04-22 1983-09-06 The United States Of America As Represented By The Secretary Of The Air Force Pulse width modulated power amplifier with differential connecting line voltage drop comparators
US4554512A (en) * 1984-08-27 1985-11-19 Aerotech, Inc. Switching amplifier with MOSFET driver circuit
JPH0728181B2 (ja) * 1988-12-28 1995-03-29 パイオニア株式会社 パルス幅変調増幅回路
US5014016A (en) * 1989-04-13 1991-05-07 Beltone Electronics Corporation Switching amplifier
US5115205A (en) * 1990-12-28 1992-05-19 Square D Company AC amplifier with automatic DC compensation
US5160896A (en) * 1992-02-18 1992-11-03 Harman International Industries, Incorporated Class D amplifier
US5410592A (en) * 1993-06-04 1995-04-25 Harris Corporation Class `D` audio speaker amplifier circuit with state variable feedback control
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
JP3132280B2 (ja) * 1994-02-17 2001-02-05 松下電器産業株式会社 Ｄ級電力増幅器
DE19512383A1 (de) * 1995-04-01 1996-10-10 Nokia Deutschland Gmbh Klasse-D-Leistungsverstärker
US5672998A (en) * 1995-08-09 1997-09-30 Harris Corporation Class D amplifier and method

Also Published As

Publication number Publication date
JPH10126170A (ja) 1998-05-15
TW348341B (en) 1998-12-21
KR19980025038A (ko) 1998-07-06
US5767740A (en) 1998-06-16
EP0833443A1 (de) 1998-04-01
EP0833443B1 (de) 2001-03-07

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