SE0302681D0 - Method for pulse area modulation - Google Patents

Method for pulse area modulation

Info

Publication number
SE0302681D0
SE0302681D0 SE0302681A SE0302681A SE0302681D0 SE 0302681 D0 SE0302681 D0 SE 0302681D0 SE 0302681 A SE0302681 A SE 0302681A SE 0302681 A SE0302681 A SE 0302681A SE 0302681 D0 SE0302681 D0 SE 0302681D0
Authority
SE
Sweden
Prior art keywords
sub
pulse
pulse modulated
voltage
amplifier
Prior art date
Application number
SE0302681A
Other languages
English (en)
Swedish (sv)
Inventor
Lars Michael Fenger
Karsten Nielsen
Original Assignee
Bang & Olufsen Icepower As
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 Bang & Olufsen Icepower As filed Critical Bang & Olufsen Icepower As
Priority to SE0302681A priority Critical patent/SE0302681D0/xx
Publication of SE0302681D0 publication Critical patent/SE0302681D0/xx
Priority to JP2006530749A priority patent/JP2007508731A/ja
Priority to US10/570,324 priority patent/US7321262B2/en
Priority to CNA2004800290348A priority patent/CN1864324A/zh
Priority to PCT/IB2004/003267 priority patent/WO2005036731A2/fr
Priority to KR1020067006545A priority patent/KR20060120002A/ko
Priority to EP04769576A priority patent/EP1671420A2/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • 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
    • 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
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • 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)
SE0302681A 2003-10-09 2003-10-09 Method for pulse area modulation SE0302681D0 (sv)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE0302681A SE0302681D0 (sv) 2003-10-09 2003-10-09 Method for pulse area modulation
JP2006530749A JP2007508731A (ja) 2003-10-09 2004-10-07 電力変換システム
US10/570,324 US7321262B2 (en) 2003-10-09 2004-10-07 Power conversion system
CNA2004800290348A CN1864324A (zh) 2003-10-09 2004-10-07 功率转换系统
PCT/IB2004/003267 WO2005036731A2 (fr) 2003-10-09 2004-10-07 Systeme convertisseur de puissance
KR1020067006545A KR20060120002A (ko) 2003-10-09 2004-10-07 전력 변환 시스템
EP04769576A EP1671420A2 (fr) 2003-10-09 2004-10-07 Systeme convertisseur de puissance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0302681A SE0302681D0 (sv) 2003-10-09 2003-10-09 Method for pulse area modulation

Publications (1)

Publication Number Publication Date
SE0302681D0 true SE0302681D0 (sv) 2003-10-09

Family

ID=29398701

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0302681A SE0302681D0 (sv) 2003-10-09 2003-10-09 Method for pulse area modulation

Country Status (7)

Country Link
US (1) US7321262B2 (fr)
EP (1) EP1671420A2 (fr)
JP (1) JP2007508731A (fr)
KR (1) KR20060120002A (fr)
CN (1) CN1864324A (fr)
SE (1) SE0302681D0 (fr)
WO (1) WO2005036731A2 (fr)

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FR2890258B1 (fr) * 2005-08-30 2007-10-12 Thales Sa Dispositif et procede pour amplifier des signaux rf impulsionnels
KR100710509B1 (ko) * 2006-04-11 2007-04-25 남상욱 펄스면적변조를 이용한 고효율 선형 전력증폭기 시스템
US7852150B1 (en) * 2007-12-20 2010-12-14 The Tc Group A/S Switching amplifier driven by a controlled power supply
US8995691B2 (en) 2008-07-14 2015-03-31 Audera Acoustics Inc. Audio amplifier
US8280070B2 (en) * 2008-08-20 2012-10-02 Siemens Industry, Inc. Arrangement and method for communicating audio and DC signals
WO2011083758A1 (fr) * 2010-01-07 2011-07-14 パナソニック株式会社 Dispositif amplificateur
US8384478B2 (en) * 2010-03-04 2013-02-26 Bose Corporation Versatile audio power amplifier
US8350537B2 (en) * 2010-03-04 2013-01-08 Bose Corporation Power supply transient response improving
US7986187B1 (en) * 2010-03-04 2011-07-26 Bose Corporation Versatile audio power amplifier
CN102959858B (zh) 2010-06-25 2015-09-02 松下知识产权经营株式会社 放大装置
CN103078515A (zh) 2011-10-25 2013-05-01 通用电气公司 谐振电源、变换器控制器、磁共振成像系统及控制方法
CN103076580B (zh) 2011-10-25 2016-02-03 通用电气公司 梯度放大器、逆变器控制器、磁共振成像系统及控制方法
CN103078510B (zh) 2011-10-25 2015-11-25 通用电气公司 谐振电源、磁共振成像系统及控制方法
US9839967B2 (en) 2011-11-08 2017-12-12 Lincoln Global, Inc. System and method for real-time computation and reporting of welding machine performance and metrics
DE102012104488A1 (de) * 2012-05-24 2013-11-28 Hochschule für angewandte Wissenschaften München Geschalteter Verstärker für variable Versorgungsspannung
US9319495B2 (en) 2013-08-06 2016-04-19 Aura Semiconductor Pvt. Ltd Power amplifier providing high efficiency
CN103607176B (zh) * 2013-10-21 2017-05-24 梁秀红 音频功放供电电路控制方法及音频功放供电电路及音频功放电路
US9520919B2 (en) * 2014-01-30 2016-12-13 Simmonds Precision Products, Inc. Magnetic wireless ground data link for aircraft health monitoring
US20160142832A1 (en) * 2014-11-19 2016-05-19 Martin Evert Gustaf Hillbratt Signal Amplifier
US9559642B2 (en) 2015-01-02 2017-01-31 Logitech Europe, S.A. Audio delivery system having an improved efficiency and extended operation time between recharges or battery replacements
US10516374B2 (en) * 2016-03-08 2019-12-24 Panasonic Intellectual Property Management Co., Ltd. Class-D amplifier and audio playback apparatus

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Publication number Priority date Publication date Assignee Title
US3900823A (en) * 1973-03-28 1975-08-19 Nathan O Sokal Amplifying and processing apparatus for modulated carrier signals
US5075634A (en) * 1990-11-23 1991-12-24 Blade Technologies Inc. Composite bridge amplifier
AU5667194A (en) * 1992-11-10 1994-06-08 Motorola, Inc. Switching regulator and amplifier system
DK0732004T3 (da) * 1993-11-30 1999-02-15 Crown Int Switch-mode-strømforsyning til en effektforstærker
US5898340A (en) 1996-11-20 1999-04-27 Chatterjee; Manjirnath A. High power efficiency audio amplifier with digital audio and volume inputs
US5998340A (en) * 1997-03-07 1999-12-07 Hitachi Maxell, Ltd. Lubricant and magnetic recording medium using the same
US6388514B1 (en) * 1998-12-23 2002-05-14 International Rectifier Corporation Class D high voltage amplifier system with adaptive power supply
WO2000070754A1 (fr) * 1999-05-19 2000-11-23 Jam Technologies, Llc Technique de reduction de distorsion, destinee a un suramplificateur inductif
US6198347B1 (en) * 1999-07-29 2001-03-06 Tropian, Inc. Driving circuits for switch mode RF power amplifiers
US6816016B2 (en) * 2000-08-10 2004-11-09 Tropian, Inc. High-efficiency modulating RF amplifier
US6373340B1 (en) 2000-08-14 2002-04-16 K. S. Waves, Ltd. High-efficiency audio power amplifier
US6496059B1 (en) * 2000-11-17 2002-12-17 Tranh T. Nguyen Clas-N amplifer
SE0104403D0 (sv) * 2001-12-21 2001-12-21 Bang & Olufsen Powerhouse As Attenuation control for digital power converters
US6765436B1 (en) * 2002-09-04 2004-07-20 Cirrus Logic, Inc. Power supply based audio compression for digital audio amplifier
JP4445304B2 (ja) * 2004-03-26 2010-04-07 オンキヨー株式会社 スイッチングアンプ

Also Published As

Publication number Publication date
US20070109044A1 (en) 2007-05-17
CN1864324A (zh) 2006-11-15
EP1671420A2 (fr) 2006-06-21
JP2007508731A (ja) 2007-04-05
KR20060120002A (ko) 2006-11-24
WO2005036731A3 (fr) 2005-06-16
WO2005036731A2 (fr) 2005-04-21
US7321262B2 (en) 2008-01-22

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