DE69127340T2 - Pulsbreitenmodulierter linearer Leistungsverstärker - Google Patents

Pulsbreitenmodulierter linearer Leistungsverstärker

Info

Publication number
DE69127340T2
DE69127340T2 DE69127340T DE69127340T DE69127340T2 DE 69127340 T2 DE69127340 T2 DE 69127340T2 DE 69127340 T DE69127340 T DE 69127340T DE 69127340 T DE69127340 T DE 69127340T DE 69127340 T2 DE69127340 T2 DE 69127340T2
Authority
DE
Germany
Prior art keywords
pulse width
power amplifier
width modulated
linear power
modulated linear
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
DE69127340T
Other languages
English (en)
Other versions
DE69127340D1 (de
Inventor
Kenneth Andersson
Dan Baevholm
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.)
Andersson & Baevholm Lab
Original Assignee
Andersson & Baevholm Lab
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 Andersson & Baevholm Lab filed Critical Andersson & Baevholm Lab
Application granted granted Critical
Publication of DE69127340D1 publication Critical patent/DE69127340D1/de
Publication of DE69127340T2 publication Critical patent/DE69127340T2/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
    • 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply converters
    • 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
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0216—Continuous control
    • H03F1/0233—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply
    • H03F1/0238—Continuous control by using a signal derived from the output signal, e.g. bootstrapping the voltage supply using supply converters
    • 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)
DE69127340T 1990-10-26 1991-10-25 Pulsbreitenmodulierter linearer Leistungsverstärker Expired - Lifetime DE69127340T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9003426A SE467331B (sv) 1990-10-26 1990-10-26 Audio-effektfoerstaerkare med pulsbreddsmodulering samt ett audio-effektsteg

Publications (2)

Publication Number Publication Date
DE69127340D1 DE69127340D1 (de) 1997-09-25
DE69127340T2 true DE69127340T2 (de) 1998-02-05

Family

ID=20380752

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127340T Expired - Lifetime DE69127340T2 (de) 1990-10-26 1991-10-25 Pulsbreitenmodulierter linearer Leistungsverstärker

Country Status (4)

Country Link
US (1) US5200711A (de)
EP (1) EP0483094B1 (de)
DE (1) DE69127340T2 (de)
SE (1) SE467331B (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5450036A (en) * 1993-02-23 1995-09-12 Rohm Co., Ltd. Power amplifier circuit for audio signal and audio device using the same
US5424684A (en) * 1993-03-04 1995-06-13 Rohm Co., Ltd. Power amplifier circuit for audio signal and audio device using the same
US5410592A (en) * 1993-06-04 1995-04-25 Harris Corporation Class `D` audio speaker amplifier circuit with state variable feedback control
US5396194A (en) * 1993-11-19 1995-03-07 Carver Corporation Audio frequency power amplifiers
US5508658A (en) * 1994-04-27 1996-04-16 Rohm Co., Ltd. Power amplifier circuit for audio signal and audio device using the same
US5606289A (en) * 1994-06-22 1997-02-25 Carver Corporation Audio frequency power amplifiers with actively damped filter
US5543753A (en) * 1994-06-22 1996-08-06 Carver Corporation Audio frequency power amplifiers with actively damped filter
DE19740137A1 (de) * 1997-09-12 1999-03-18 Alsthom Cge Alcatel Verfahren und Schaltungsanordnung zur Rufwechselspannungserzeugung für elektronische Teilnehmerschaltungen
US5990751A (en) * 1997-10-16 1999-11-23 Nikon Corporation Method and apparatus for improving power transfer efficiency of an amplifier system
ATE328390T1 (de) * 1998-07-24 2006-06-15 Texas Instr Denmark As Verfahren zur reduzierung von nulldurchgangsverzerrungen und rauschen in einem verstärker, verstärker sowie anwendung dieses verfahrens und verstärkers
US6172490B1 (en) * 1999-12-08 2001-01-09 Alcatel Networks Corporation Precise rail tracking method for powering dual voltage integrated circuits
US6825726B2 (en) * 2000-07-12 2004-11-30 Indigo Manufacturing Inc. Power amplifier with multiple power supplies
US6621335B2 (en) * 2001-04-18 2003-09-16 Microsemi Corporation Class D amplifier with passive RC network
US20030095666A1 (en) * 2001-11-16 2003-05-22 Ramage Robert D. Machine for controlling and amplifying a low-level audio signal using a high efficiency class D switching amplifier
US20030095000A1 (en) * 2001-11-16 2003-05-22 Acoustic Technology, Inc. Apparatus with ultra high output power class D audio amplifier
JP3894294B2 (ja) * 2001-11-19 2007-03-14 ソニー株式会社 パワーアンプ
US8036402B2 (en) * 2005-12-15 2011-10-11 Harman International Industries, Incorporated Distortion compensation
GB2446843B (en) 2006-06-30 2011-09-07 Wolfson Microelectronics Plc Amplifier circuit and methods of operation thereof
US7719141B2 (en) * 2006-11-16 2010-05-18 Star Rf, Inc. Electronic switch network
US8362838B2 (en) * 2007-01-19 2013-01-29 Cirrus Logic, Inc. Multi-stage amplifier with multiple sets of fixed and variable voltage rails
US7863841B2 (en) * 2007-06-15 2011-01-04 Paolo Menegoli Class H drive
US7786804B2 (en) * 2008-06-02 2010-08-31 Mediatek Singapore Pte. Ltd. Driving amplifier circuit with digital control and DC offset equalization
DE102008030576B3 (de) * 2008-06-27 2009-12-03 Texas Instruments Deutschland Gmbh Hocheffizienter Präzisionsverstärker
US8754705B2 (en) 2011-08-01 2014-06-17 Crestron Electronics Inc. Audio amplifier power supply with inherent power factor correction
JP5883706B2 (ja) * 2012-03-30 2016-03-15 株式会社ショーワ 相対角度検出装置および電動パワーステアリング装置
US9013239B2 (en) 2012-05-15 2015-04-21 Crestron Electronics Inc. Audio amplifier power supply with inherent power factor correction
US11095264B2 (en) * 2017-12-20 2021-08-17 Dolby Laboratories Licensing Corporation Configurable modal amplifier system

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121239A (en) * 1975-04-17 1976-10-23 Sony Corp An amplification circuit
JPS6115620Y2 (de) * 1976-03-02 1986-05-15
JPS5658303A (en) * 1979-10-18 1981-05-21 Sony Corp Amplifying circuit
JPS5723309A (en) * 1980-07-16 1982-02-06 Sanyo Electric Co Ltd Electric power amplifying circuit of pulse width modulation system
JPS5723310A (en) * 1980-07-17 1982-02-06 Sanyo Electric Co Ltd Electric power amplifier circuit of pulse width modulation system
JPS5732104A (en) * 1980-08-06 1982-02-20 Hitachi Ltd Power-voltage-controlled type amplifier
US4472687A (en) * 1980-12-24 1984-09-18 Tokyo Shibaura Denki Kabushiki Kaisha Audio power amplifier for supplying electric power to a load by switching of power supply voltage
JPS57140008A (en) * 1981-02-20 1982-08-30 Sanyo Electric Co Ltd Power amplifying circuit
JPS5814606A (ja) * 1981-07-18 1983-01-27 Pioneer Electronic Corp 増幅器の電源供給回路
JPS58105606A (ja) * 1981-12-17 1983-06-23 Pioneer Electronic Corp 増幅器の電源供給回路
JPS58119209A (ja) * 1982-01-11 1983-07-15 Hitachi Ltd 電源電圧制御型増幅器
JPS5917710A (ja) * 1982-07-22 1984-01-30 Toshiba Corp 電力増幅器
FR2552600A1 (fr) * 1983-09-27 1985-03-29 Commissariat Energie Atomique Amplificateur de puissance a alimentation asservie
JPH01147907A (ja) * 1987-12-04 1989-06-09 Oki Electric Ind Co Ltd 電力増幅回路
JPH1147907A (ja) * 1997-07-30 1999-02-23 Honda Motor Co Ltd 金属製ビレットの固相率判定方法および装置

Also Published As

Publication number Publication date
SE9003426D0 (sv) 1990-10-26
EP0483094A3 (en) 1992-12-09
EP0483094A2 (de) 1992-04-29
US5200711A (en) 1993-04-06
SE9003426L (sv) 1992-04-27
SE467331B (sv) 1992-06-29
EP0483094B1 (de) 1997-08-20
DE69127340D1 (de) 1997-09-25

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition