DE60201856D1 - Klasse-D Verstärker - Google Patents

Klasse-D Verstärker

Info

Publication number
DE60201856D1
DE60201856D1 DE60201856T DE60201856T DE60201856D1 DE 60201856 D1 DE60201856 D1 DE 60201856D1 DE 60201856 T DE60201856 T DE 60201856T DE 60201856 T DE60201856 T DE 60201856T DE 60201856 D1 DE60201856 D1 DE 60201856D1
Authority
DE
Germany
Prior art keywords
amplifier
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 - Fee Related
Application number
DE60201856T
Other languages
English (en)
Other versions
DE60201856T2 (de
Inventor
Jun Honda
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
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 Pioneer Corp filed Critical Pioneer Corp
Publication of DE60201856D1 publication Critical patent/DE60201856D1/de
Application granted granted Critical
Publication of DE60201856T2 publication Critical patent/DE60201856T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/165—Equalizers; Volume or gain control in limited frequency bands
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
DE60201856T 2001-03-30 2002-03-25 Klasse-D Verstärker Expired - Fee Related DE60201856T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001099096A JP2002299968A (ja) 2001-03-30 2001-03-30 Ｄ級アンプ
JP2001099096 2001-03-30

Publications (2)

Publication Number Publication Date
DE60201856D1 true DE60201856D1 (de) 2004-12-16
DE60201856T2 DE60201856T2 (de) 2005-11-03

Family

ID=18952685

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60201856T Expired - Fee Related DE60201856T2 (de) 2001-03-30 2002-03-25 Klasse-D Verstärker

Country Status (4)

Country Link
US (1) US6897725B2 (de)
EP (1) EP1253711B1 (de)
JP (1) JP2002299968A (de)
DE (1) DE60201856T2 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT411415B (de) * 2001-12-11 2003-12-29 Bier Guenther Ing Verfahren und vorrichtung zur erzeugung einer einem eingangs-datenstrom folgenden wechselspannung
JP4201752B2 (ja) 2004-09-21 2008-12-24 ローム株式会社 オーディオパワーアンプｉｃ
JP2006121529A (ja) * 2004-10-22 2006-05-11 Pioneer Electronic Corp Ｄ級増幅装置、増幅制御プログラム及び情報記録媒体
US7167515B2 (en) * 2004-10-27 2007-01-23 Jl Audio, Inc. Method and system for equalization of a replacement load
JP2006180198A (ja) * 2004-12-22 2006-07-06 Alpine Electronics Inc デジタルアンプ搭載装置
EP2048896B1 (de) * 2007-10-12 2011-12-21 STMicroelectronics Srl Verfahren und Schaltung zum Testen eines Hochfrequenzlautsprechers eines Lautsprechersystems
JP2008125134A (ja) * 2008-02-12 2008-05-29 Seiko Epson Corp 半導体装置
JP2010081189A (ja) * 2008-09-25 2010-04-08 Oki Semiconductor Co Ltd 信号処理装置
JP5237081B2 (ja) * 2008-12-24 2013-07-17 日本電信電話株式会社 光学特性測定装置
US8305246B2 (en) * 2009-11-05 2012-11-06 Taiwan Semiconductor Manufacturing Company, Ltd. Amplifier with digital input and digital PWM control loop
JP5625437B2 (ja) * 2010-03-30 2014-11-19 セイコーエプソン株式会社 手術機器
JP6021418B2 (ja) * 2012-05-07 2016-11-09 三菱電機株式会社 電磁駆動型アクチュエータの速度制御装置及び方法、並びに速度検出装置及び方法
US9247365B1 (en) * 2013-02-14 2016-01-26 Google Inc. Impedance sensing for speaker characteristic information
EP2797075B1 (de) * 2013-04-26 2018-09-12 Eberspächer Exhaust Technology GmbH & Co. KG System zur Beeinflussung von Abgasgeräuschen, Motorgeräuschen und/oder Ansauggeräuschen
IT201700014710A1 (it) * 2017-02-10 2018-08-10 St Microelectronics Srl Generatore di tensione a forma d'onda triangolare e relativo circuito amplificatore in classe d

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8203428A (nl) * 1982-09-02 1984-04-02 Philips Nv Inrichting voor het omzetten van een elektrisch signaal in een akoestisch signaal.
JPS59183510A (ja) * 1983-04-02 1984-10-18 Hitachi Ltd 歪補正回路
FR2692092B1 (fr) * 1992-06-05 1994-07-22 Thomson Csf Dispositif de traitement et de precorrection d'un signal audiofrequence avant son amplification dans une chaine d'amplification d'un emetteur a modulation d'amplitude.
US5606289A (en) * 1994-06-22 1997-02-25 Carver Corporation Audio frequency power amplifiers with actively damped filter
US5973368A (en) * 1996-06-05 1999-10-26 Pearce; Lawrence G. Monolithic class D amplifier
US6016075A (en) * 1997-06-04 2000-01-18 Lord Corporation Class-D amplifier input structure
JP2000138542A (ja) * 1998-10-30 2000-05-16 Sony Corp オーディオ信号処理装置
US6229389B1 (en) * 1998-11-18 2001-05-08 Intersil Corporation Class D modulator with peak current limit and load impedance sensing circuits
JP3348036B2 (ja) * 1999-03-16 2002-11-20 シャープ株式会社 デジタルスイッチング増幅器
US6362683B1 (en) * 1999-07-29 2002-03-26 Tripath Technology, Inc. Break-before-make distortion compensation for a digital amplifier
US6414560B2 (en) * 2000-03-03 2002-07-02 Tripath Technology, Inc. Loop delay compensation for a digital power amplifier
US6441685B1 (en) * 2000-03-17 2002-08-27 Jl Audio, Inc. Amplifier circuit and method for providing negative feedback thereto
EP1293038B1 (de) * 2000-05-25 2009-04-15 Nxp B.V. Pwm-begrenzungsanordnung
US6420930B1 (en) * 2000-07-12 2002-07-16 Monolithic Power Systems, Inc. Class D audio amplifier
US6476673B2 (en) * 2000-07-12 2002-11-05 Monolithic Power Systems, Inc. Class D audio amplifier

Also Published As

Publication number Publication date
JP2002299968A (ja) 2002-10-11
DE60201856T2 (de) 2005-11-03
US6897725B2 (en) 2005-05-24
US20020149426A1 (en) 2002-10-17
EP1253711A2 (de) 2002-10-30
EP1253711B1 (de) 2004-11-10
EP1253711A3 (de) 2003-12-17

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee