DE69735029D1 - Selbst-oszillierender Klasse-D Verstärker mit verbesserter Kaskaden-Rückkopplung - Google Patents

Selbst-oszillierender Klasse-D Verstärker mit verbesserter Kaskaden-Rückkopplung

Info

Publication number
DE69735029D1
DE69735029D1 DE69735029T DE69735029T DE69735029D1 DE 69735029 D1 DE69735029 D1 DE 69735029D1 DE 69735029 T DE69735029 T DE 69735029T DE 69735029 T DE69735029 T DE 69735029T DE 69735029 D1 DE69735029 D1 DE 69735029D1
Authority
DE
Germany
Prior art keywords
self
amplifier
oscillating
cascade feedback
oscillating 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.)
Expired - Lifetime
Application number
DE69735029T
Other languages
English (en)
Other versions
DE69735029T2 (de
Inventor
Karsten Nielsen
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.)
Bang and Olufsen AS
Original Assignee
Bang and Olufsen 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 and Olufsen AS filed Critical Bang and Olufsen AS
Application granted granted Critical
Publication of DE69735029D1 publication Critical patent/DE69735029D1/de
Publication of DE69735029T2 publication Critical patent/DE69735029T2/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
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/083—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements in transistor amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE69735029T 1996-10-31 1997-10-31 Selbst-oszillierender Klasse-D Verstärker mit verbesserter Kaskaden-Rückkopplung Expired - Lifetime DE69735029T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK121496 1996-10-31
DK121496 1996-10-31

Publications (2)

Publication Number Publication Date
DE69735029D1 true DE69735029D1 (de) 2006-03-30
DE69735029T2 DE69735029T2 (de) 2006-09-14

Family

ID=8102265

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69726592T Expired - Lifetime DE69726592T2 (de) 1996-10-31 1997-10-31 Pulsmodulierterkeistungsverstärker mit verbessertem kaskadiertem steuerungsverfahren
DE69735029T Expired - Lifetime DE69735029T2 (de) 1996-10-31 1997-10-31 Selbst-oszillierender Klasse-D Verstärker mit verbesserter Kaskaden-Rückkopplung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69726592T Expired - Lifetime DE69726592T2 (de) 1996-10-31 1997-10-31 Pulsmodulierterkeistungsverstärker mit verbessertem kaskadiertem steuerungsverfahren

Country Status (13)

Country Link
US (1) US6297692B1 (de)
EP (2) EP0935846B1 (de)
JP (1) JP3346579B2 (de)
KR (1) KR100394846B1 (de)
CN (1) CN1123115C (de)
AT (2) ATE315285T1 (de)
AU (1) AU734813B2 (de)
CA (1) CA2271041C (de)
DE (2) DE69726592T2 (de)
DK (1) DK0935846T3 (de)
ES (1) ES2212082T3 (de)
PT (1) PT935846E (de)
WO (1) WO1998019391A2 (de)

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US7911324B2 (en) * 2001-02-16 2011-03-22 Automotive Technologies International, Inc. Method and system for obtaining information about RFID-equipped objects
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US6362702B1 (en) 2000-09-29 2002-03-26 Bang & Olufsen Powerhouse A/S Controlled self-oscillation modulator and power conversion system using such a modulator
US6975843B2 (en) * 2000-12-21 2005-12-13 Telefonaktiebolaget L M Ericsson (Publ) Method and an arrangement relating to telecommunications systems
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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
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AT411415B (de) 2001-12-11 2003-12-29 Bier Guenther Ing Verfahren und vorrichtung zur erzeugung einer einem eingangs-datenstrom folgenden wechselspannung
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JP3776392B2 (ja) * 2002-10-03 2006-05-17 三菱電機株式会社 Ｄ級増幅器
US6924700B2 (en) * 2002-10-03 2005-08-02 Mitsubishi Denki Kabushiki Kaisha Class D amplifier
SE0203403D0 (sv) * 2002-11-15 2002-11-15 Bang & Olufsen Icepower As Pulse modulated power converter
US7365598B2 (en) 2003-05-09 2008-04-29 Danmarks Tekniske Universitet Global loop integrating modulator
US7002406B2 (en) 2003-05-16 2006-02-21 Texas Instruments Incorporated Loop filter for class D amplifiers
DE60324847D1 (de) * 2003-06-27 2009-01-02 Tc Group As Selbstschwingender stromkreis
US7551022B2 (en) * 2003-10-10 2009-06-23 Tc Electronic A/S Power supply compensation
US20060044057A1 (en) * 2004-08-26 2006-03-02 Rahmi Hezar Class-D amplifier having high order loop filtering
US20090072902A1 (en) * 2004-10-27 2009-03-19 Extraordinary Technology Pty Ltd Low distortion class-d amplifier
US20060115280A1 (en) * 2004-11-30 2006-06-01 Chang Jae J Optical link bandwidth improvement
MY138040A (en) * 2005-02-17 2009-04-30 Tube Amp Sdn Bhd Apparatus for providing amplification with multi-feedback path
WO2007025548A1 (en) * 2005-09-01 2007-03-08 Danmarks Tekniske Universitet A self-oscillating modulator
US8036402B2 (en) 2005-12-15 2011-10-11 Harman International Industries, Incorporated Distortion compensation
EP1830464A1 (de) * 2006-03-01 2007-09-05 Danmarks Tekniske Universitet Digitaler selbst oszillierender Modulator
WO2007098766A1 (en) * 2006-03-01 2007-09-07 Danmarks Teknishe Universitet Digital self-oscillating modulator
JP5313697B2 (ja) * 2006-03-03 2013-10-09 バング アンド オルフセン アイスパワー アクティーゼルスカブ 自励発振増幅システム
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US7400191B2 (en) 2006-04-07 2008-07-15 Manuel De Jesus Rodriguez Switching power amplifier
DE102006026906B4 (de) * 2006-06-09 2011-02-10 Infineon Technologies Ag Schaltung und Verfahren zur Pulsweitenmodulation mittels synchronisierter, selbstoszillierender Pulsweitenmodulatoren
WO2008006367A1 (en) * 2006-07-11 2008-01-17 The Tc Group A/S A high-mode self-oscillating pulse modulator
EP2070190B1 (de) * 2006-09-28 2011-09-07 Pascal A/S Gesteuerter Stromwandler
US7576604B2 (en) 2006-12-15 2009-08-18 Bin Xu All-digital class-D audio amplifier
US7705672B1 (en) 2007-02-12 2010-04-27 Manuel De Jesus Rodriguez Buck converters as power amplifier
FR2915036B1 (fr) * 2007-04-13 2009-07-03 Anagram Technologies Dispositif de modulation de signaux en largeurs d'impulsions a trois niveaux et amplificateur numerique mettant en oeuvre un tel dispositif.
KR101445721B1 (ko) * 2008-02-01 2014-09-26 삼성전자 주식회사 멀티 페이즈 클럭신호를 이용한 고속 다단 증폭기 및증폭기의 세틀링 방법
US7598895B1 (en) * 2008-04-01 2009-10-06 Silicon Laboratories, Inc. System and method of altering a PWM carrier power spectrum
US7701307B2 (en) * 2008-04-01 2010-04-20 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
US7791521B2 (en) * 2008-04-01 2010-09-07 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
KR20100008749A (ko) 2008-07-16 2010-01-26 삼성전자주식회사 스위칭 파워 증폭 장치 및 그 제어 방법
US8130128B2 (en) 2010-03-30 2012-03-06 Silicon Laboratores Inc. System and method for generating shaped noise
JP5355496B2 (ja) * 2010-05-24 2013-11-27 三菱電機株式会社 バイアス制御増幅器
KR101802333B1 (ko) * 2011-10-17 2017-12-29 삼성전자주식회사 오디오 신호 출력 방법 및 그에 따른 오디오 신호 처리 장치
US10038411B2 (en) * 2016-10-31 2018-07-31 Rgb Systems, Inc. Method and apparatus for distortion reduction in a class D amplifier
US10110181B2 (en) * 2016-12-30 2018-10-23 Texas Instruments Incorporated Class-D amplifier with post filter feedback loop
EP3416285B1 (de) 2017-06-16 2021-06-02 ICEpower a/s Selbstschwingendes verstärkersystem
KR20200095531A (ko) * 2017-12-07 2020-08-10 퓨리파이 에이피에스 적어도 3차의 네트워크를 갖는 보상기를 갖는 증폭기
KR20200096278A (ko) * 2017-12-07 2020-08-11 퓨리파이 에이피에스 증폭기 회로
ES2963491T3 (es) 2017-12-07 2024-03-27 Purifi Aps Un amplificador con al menos un filtro de segundo orden en el bucle de control
US11190148B2 (en) * 2020-01-02 2021-11-30 Cirrus Logic, Inc. Minimizing idle channel noise in a class-D pulse width modulation amplifier
US11128270B1 (en) 2020-05-21 2021-09-21 Qsc, Llc Class-D amplifier with nested feedback loops
EP4102717A1 (de) 2021-06-08 2022-12-14 ICEpower a/s Selbstoszillierender audioverstärker der klasse d mit spannungsbegrenzungsschaltung
DE102022116446A1 (de) 2022-07-01 2024-01-04 Sennheiser Electronic Gmbh & Co. Kg Lautsprecher-Leistungsverstärker und Lautsprecher

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Also Published As

Publication number Publication date
DE69735029T2 (de) 2006-09-14
PT935846E (pt) 2004-04-30
KR20000052932A (ko) 2000-08-25
ES2212082T3 (es) 2004-07-16
WO1998019391A3 (en) 1998-07-23
CA2271041A1 (en) 1998-05-07
US6297692B1 (en) 2001-10-02
JP2001503575A (ja) 2001-03-13
CN1235711A (zh) 1999-11-17
DE69726592T2 (de) 2004-11-11
ATE315285T1 (de) 2006-02-15
WO1998019391A2 (en) 1998-05-07
DE69726592D1 (de) 2004-01-15
ATE255784T1 (de) 2003-12-15
DK0935846T3 (da) 2004-03-22
EP0935846A2 (de) 1999-08-18
KR100394846B1 (ko) 2003-08-19
EP1376858B1 (de) 2006-01-04
AU734813B2 (en) 2001-06-21
AU4772897A (en) 1998-05-22
EP0935846B1 (de) 2003-12-03
CN1123115C (zh) 2003-10-01
CA2271041C (en) 2003-03-18
JP3346579B2 (ja) 2002-11-18
EP1376858A1 (de) 2004-01-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Representative=s name: LE-SATTLER, A., LEBENSMITTELCHEM., PAT.-ANW., 4479