DK0935846T3 - Pulsmodulations-effektforstærker med forstærket kaskadestyringsmetode - Google Patents

Pulsmodulations-effektforstærker med forstærket kaskadestyringsmetode

Info

Publication number
DK0935846T3
DK0935846T3 DK97910272T DK97910272T DK0935846T3 DK 0935846 T3 DK0935846 T3 DK 0935846T3 DK 97910272 T DK97910272 T DK 97910272T DK 97910272 T DK97910272 T DK 97910272T DK 0935846 T3 DK0935846 T3 DK 0935846T3
Authority
DK
Denmark
Prior art keywords
pulse modulation
control method
power amplifier
modulation power
cascade control
Prior art date
Application number
DK97910272T
Other languages
Danish (da)
English (en)
Inventor
Karsten Nielsen
Original Assignee
Karsten Nielsen
Bang & 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 Karsten Nielsen, Bang & Olufsen As filed Critical Karsten Nielsen
Application granted granted Critical
Publication of DK0935846T3 publication Critical patent/DK0935846T3/da

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)
DK97910272T 1996-10-31 1997-10-31 Pulsmodulations-effektforstærker med forstærket kaskadestyringsmetode DK0935846T3 (da)

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
DK0935846T3 true DK0935846T3 (da) 2004-03-22

Family

ID=8102265

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97910272T DK0935846T3 (da) 1996-10-31 1997-10-31 Pulsmodulations-effektforstærker med forstærket kaskadestyringsmetode

Country Status (13)

Country Link
US (1) US6297692B1 (ja)
EP (2) EP0935846B1 (ja)
JP (1) JP3346579B2 (ja)
KR (1) KR100394846B1 (ja)
CN (1) CN1123115C (ja)
AT (2) ATE315285T1 (ja)
AU (1) AU734813B2 (ja)
CA (1) CA2271041C (ja)
DE (2) DE69735029T2 (ja)
DK (1) DK0935846T3 (ja)
ES (1) ES2212082T3 (ja)
PT (1) PT935846E (ja)
WO (1) WO1998019391A2 (ja)

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KR101445721B1 (ko) * 2008-02-01 2014-09-26 삼성전자 주식회사 멀티 페이즈 클럭신호를 이용한 고속 다단 증폭기 및증폭기의 세틀링 방법
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KR20100008749A (ko) * 2008-07-16 2010-01-26 삼성전자주식회사 스위칭 파워 증폭 장치 및 그 제어 방법
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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
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US11258411B2 (en) 2017-12-07 2022-02-22 Purifi Aps Amplifier with an at least second order filter in the control loop
EP3721552A1 (en) * 2017-12-07 2020-10-14 Purifi ApS Amplifier circuit
ES2963490T3 (es) * 2017-12-07 2024-03-27 Purifi Aps Un amplificador con compensador con una red de al menos tercer orden
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Also Published As

Publication number Publication date
DE69735029T2 (de) 2006-09-14
CA2271041A1 (en) 1998-05-07
CN1123115C (zh) 2003-10-01
AU4772897A (en) 1998-05-22
ES2212082T3 (es) 2004-07-16
EP1376858A1 (en) 2004-01-02
CA2271041C (en) 2003-03-18
DE69735029D1 (de) 2006-03-30
ATE315285T1 (de) 2006-02-15
US6297692B1 (en) 2001-10-02
KR20000052932A (ko) 2000-08-25
PT935846E (pt) 2004-04-30
JP2001503575A (ja) 2001-03-13
WO1998019391A3 (en) 1998-07-23
EP1376858B1 (en) 2006-01-04
JP3346579B2 (ja) 2002-11-18
DE69726592D1 (de) 2004-01-15
WO1998019391A2 (en) 1998-05-07
CN1235711A (zh) 1999-11-17
EP0935846A2 (en) 1999-08-18
DE69726592T2 (de) 2004-11-11
KR100394846B1 (ko) 2003-08-19
AU734813B2 (en) 2001-06-21
ATE255784T1 (de) 2003-12-15
EP0935846B1 (en) 2003-12-03

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