ATE255784T1 - Pulsmodulierterkeistungsverstärker mit verbessertem kaskadiertem steuerungsverfahren - Google Patents

Pulsmodulierterkeistungsverstärker mit verbessertem kaskadiertem steuerungsverfahren

Info

Publication number
ATE255784T1
ATE255784T1 AT97910272T AT97910272T ATE255784T1 AT E255784 T1 ATE255784 T1 AT E255784T1 AT 97910272 T AT97910272 T AT 97910272T AT 97910272 T AT97910272 T AT 97910272T AT E255784 T1 ATE255784 T1 AT E255784T1
Authority
AT
Austria
Prior art keywords
control method
power amplifier
pulse modulated
modulated power
cascaded control
Prior art date
Application number
AT97910272T
Other languages
English (en)
Inventor
Nielsen Karsten
Original Assignee
Bang & Olufsen As
Nielsen Karsten
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 As, Nielsen Karsten filed Critical Bang & Olufsen As
Application granted granted Critical
Publication of ATE255784T1 publication Critical patent/ATE255784T1/de

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)
AT97910272T 1996-10-31 1997-10-31 Pulsmodulierterkeistungsverstärker mit verbessertem kaskadiertem steuerungsverfahren ATE255784T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK121496 1996-10-31
PCT/DK1997/000497 WO1998019391A2 (en) 1996-10-31 1997-10-31 Pulse modulation power amplifier with enhanced cascade control method

Publications (1)

Publication Number Publication Date
ATE255784T1 true ATE255784T1 (de) 2003-12-15

Family

ID=8102265

Family Applications (2)

Application Number Title Priority Date Filing Date
AT03013623T ATE315285T1 (de) 1996-10-31 1997-10-31 Selbst-oszillierender klasse-d verstärker mit verbesserter kaskaden-rückkopplung
AT97910272T ATE255784T1 (de) 1996-10-31 1997-10-31 Pulsmodulierterkeistungsverstärker mit verbessertem kaskadiertem steuerungsverfahren

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT03013623T ATE315285T1 (de) 1996-10-31 1997-10-31 Selbst-oszillierender klasse-d verstärker mit verbesserter kaskaden-rückkopplung

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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US7551022B2 (en) * 2003-10-10 2009-06-23 Tc Electronic A/S Power supply compensation
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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
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
DE69735029D1 (de) 2006-03-30

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