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DE60324847D1 - Selbstschwingender stromkreis - Google Patents

Selbstschwingender stromkreis

Info

Publication number
DE60324847D1
DE60324847D1 DE60324847T DE60324847T DE60324847D1 DE 60324847 D1 DE60324847 D1 DE 60324847D1 DE 60324847 T DE60324847 T DE 60324847T DE 60324847 T DE60324847 T DE 60324847T DE 60324847 D1 DE60324847 D1 DE 60324847D1
Authority
DE
Germany
Prior art keywords
self
swinging circuit
filtering
circuit
swinging
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 - Fee Related
Application number
DE60324847T
Other languages
English (en)
Inventor
Thomas Mansachs Frederiksen
Kim Rishoj Pedersen
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.)
TC Group AS
Original Assignee
TC Group 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 TC Group AS filed Critical TC Group AS
Application granted granted Critical
Publication of DE60324847D1 publication Critical patent/DE60324847D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03F2200/78—A comparator being used in a controlling circuit of an amplifier

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Telephone Function (AREA)
  • Invalid Beds And Related Equipment (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
DE60324847T 2003-06-27 2003-06-27 Selbstschwingender stromkreis Expired - Fee Related DE60324847D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK2003/000447 WO2005002050A1 (en) 2003-06-27 2003-06-27 Self-oscillating power circuit

Publications (1)

Publication Number Publication Date
DE60324847D1 true DE60324847D1 (de) 2009-01-02

Family

ID=33547522

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60324847T Expired - Fee Related DE60324847D1 (de) 2003-06-27 2003-06-27 Selbstschwingender stromkreis

Country Status (6)

Country Link
US (1) US7391258B2 (de)
EP (1) EP1639702B1 (de)
AT (1) ATE415008T1 (de)
AU (1) AU2003236814A1 (de)
DE (1) DE60324847D1 (de)
WO (1) WO2005002050A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060140644A1 (en) * 2004-12-23 2006-06-29 Paolella Arthur C High performance, high efficiency fiber optic link for analog and RF systems
US20090135885A1 (en) * 2005-11-07 2009-05-28 Keystone Semiconductor, Inc. Non-linear feedback control loops as spread spectrum clock generator
US7554390B1 (en) * 2007-12-20 2009-06-30 Texas Instruments Incorporated Method and system for transitioning between operation states in an output system
US8305056B2 (en) * 2008-12-09 2012-11-06 Qualcomm Incorporated Low drop-out voltage regulator with wide bandwidth power supply rejection ratio
EP3231086B1 (de) * 2014-12-08 2020-06-03 Icepower A/S Selbstschwingender verstärker mit schleifenfilter höherer ordnung
WO2018211085A1 (en) * 2017-05-19 2018-11-22 Danmarks Tekniske Universitet A class-d audio amplifier
JP7438124B2 (ja) * 2017-12-07 2024-02-26 ピューリファイ・アーペーエス 増幅器回路
US11258411B2 (en) 2017-12-07 2022-02-22 Purifi Aps Amplifier with an at least second order filter in the control loop
US11082017B2 (en) 2017-12-07 2021-08-03 Purifi Aps Amplifier with a compensator with a network of at least third order
EP3531555A1 (de) * 2018-02-22 2019-08-28 Vestel Elektronik Sanayi ve Ticaret A.S. Verfahren zur unterdrückung von hochfrequenzrauschen bei der ausgabe durch einen klasse-d-verstärker und klasse-d-verstärker
US11575353B2 (en) * 2020-08-25 2023-02-07 Crestron Electronics, Inc. Overpower protection using a power-mirroring resistor
KR102577289B1 (ko) * 2021-08-23 2023-09-12 주식회사 웰랑 낮은 노이즈 및 고조파 왜곡을 갖는 증폭기 및 이를 위한 노이즈 쉐이퍼

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639606A (en) 1979-09-07 1981-04-15 Matsushita Electric Ind Co Ltd Self-excited type d-class amplifier
JPS5967719A (ja) * 1982-10-09 1984-04-17 Nippon Gakki Seizo Kk パルス幅変調回路
JPH0644696B2 (ja) * 1984-07-30 1994-06-08 富士通テン株式会社 パルス幅変調型パワーアンプの復調フィルタ
WO1998019391A2 (en) * 1996-10-31 1998-05-07 Bang & Olufsen A/S Pulse modulation power amplifier with enhanced cascade control method
CN1258393A (zh) * 1998-01-22 2000-06-28 皇家菲利浦电子有限公司 Pwm放大器
US6249182B1 (en) * 1998-11-18 2001-06-19 Intersil Corporation Class D amplifier with bandwidth independent of load impedance
US6909321B2 (en) * 2000-01-03 2005-06-21 Harman International Industries, Incorporated Active isolated-integrator low-pass filter with attenuation poles
JP2002076842A (ja) * 2000-08-30 2002-03-15 Sony Corp フィルタ装置、フィルタ制御方法、及び受信装置
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
SE0104401D0 (sv) * 2001-12-21 2001-12-21 Bang & Olufsen Powerhouse As Syncronized controlled oscillation modulator
SE0203403D0 (sv) * 2002-11-15 2002-11-15 Bang & Olufsen Icepower As Pulse modulated power converter

Also Published As

Publication number Publication date
EP1639702B1 (de) 2008-11-19
US7391258B2 (en) 2008-06-24
WO2005002050A1 (en) 2005-01-06
ATE415008T1 (de) 2008-12-15
EP1639702A1 (de) 2006-03-29
AU2003236814A1 (en) 2005-01-13
US20070216491A1 (en) 2007-09-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee