ATE425581T1 - Klasse-d verstärker - Google Patents

Klasse-d verstärker

Info

Publication number
ATE425581T1
ATE425581T1 AT06005431T AT06005431T ATE425581T1 AT E425581 T1 ATE425581 T1 AT E425581T1 AT 06005431 T AT06005431 T AT 06005431T AT 06005431 T AT06005431 T AT 06005431T AT E425581 T1 ATE425581 T1 AT E425581T1
Authority
AT
Austria
Prior art keywords
analog
output
pass filter
low pass
amplifier
Prior art date
Application number
AT06005431T
Other languages
English (en)
Inventor
Morito Morishima
Original Assignee
Yamaha 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 Yamaha Corp filed Critical Yamaha Corp
Application granted granted Critical
Publication of ATE425581T1 publication Critical patent/ATE425581T1/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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/331—Sigma delta modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AT06005431T 2005-03-18 2006-03-16 Klasse-d verstärker ATE425581T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2005079062 2005-03-18
JP2005298562 2005-10-13
JP2006054716A JP4802765B2 (ja) 2005-03-18 2006-03-01 Ｄ級増幅器

Publications (1)

Publication Number Publication Date
ATE425581T1 true ATE425581T1 (de) 2009-03-15

Family

ID=36499145

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06005431T ATE425581T1 (de) 2005-03-18 2006-03-16 Klasse-d verstärker

Country Status (6)

Country Link
US (2) US7538607B2 (de)
EP (1) EP1703635B1 (de)
JP (1) JP4802765B2 (de)
CN (1) CN1835395B (de)
AT (1) ATE425581T1 (de)
DE (1) DE602006005529D1 (de)

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US8406794B2 (en) 2006-04-26 2013-03-26 Qualcomm Incorporated Methods and apparatuses of initiating communication in wireless networks
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JP5430025B2 (ja) * 2009-06-29 2014-02-26 パナソニック株式会社 Ｄ級増幅装置
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GB2490930A (en) * 2011-05-19 2012-11-21 Warwick Audio Technologies Ltd A switching amplifier arrangement providing both signal drive and a high bias voltage for an electrostatic loudspeaker
US8773197B2 (en) * 2011-11-22 2014-07-08 Ess Technology, Inc. Distortion correction in class-D amplifiers
US8717096B2 (en) * 2012-02-17 2014-05-06 NeoEnergy Microelectronics, Inc. Switching amplifier system and method for suppressing signal distortion thereof
US8576003B2 (en) * 2012-03-02 2013-11-05 Taiwan Semiconductor Manufacturing Co., Ltd. Cascaded class D amplifier with improved linearity
DE102012104488A1 (de) 2012-05-24 2013-11-28 Hochschule für angewandte Wissenschaften München Geschalteter Verstärker für variable Versorgungsspannung
US8766713B2 (en) * 2012-05-31 2014-07-01 Qualcomm Incorporated Switching amplifier with embedded harmonic rejection filter
JP2013031204A (ja) * 2012-09-12 2013-02-07 Renesas Electronics Corp Ｐｗｍアンプ
EP2790321A1 (de) * 2013-04-09 2014-10-15 Alcatel Lucent Verfahren zur Signalverstärkung in einer Verstärkervorrichtung, Computerprogrammprodukt, Vorrichtung zur Speicherung digitaler Daten, Verstärkervorrichtung, Sendervorrichtung, Netzwerkknoten und Fahrzeug dafür
TWI532329B (zh) * 2013-11-12 2016-05-01 聯詠科技股份有限公司 載波信號偵測裝置、觸控偵測裝置及其偵測方法
WO2015125195A1 (ja) 2014-02-18 2015-08-27 パナソニックＩｐマネジメント株式会社 オーディオ信号増幅装置
US10256777B2 (en) * 2016-02-29 2019-04-09 Qualcomm Incorporated Audio amplifiers
US10218312B2 (en) 2016-02-29 2019-02-26 Qualcomm Incorporated Dynamic volume management in audio amplifiers
WO2019012934A1 (ja) * 2017-07-13 2019-01-17 シャープ株式会社 デジタルアンプおよび出力装置
EP3567722A1 (de) * 2018-05-09 2019-11-13 ams AG Klasse-d-verstärker und verfahren zur erzeugung eines treibersignals
CN108718187A (zh) * 2018-05-20 2018-10-30 广州市尚科仪器科技有限公司 一种新型噪声信号发生器
CN111371419B (zh) * 2018-12-25 2024-05-31 华润微集成电路(无锡)有限公司 数字功放电路结构和方法
JP7411411B2 (ja) * 2019-12-27 2024-01-11 ローランド株式会社 楽音信号の増幅器
GB2595312B (en) 2020-05-21 2023-07-26 Cirrus Logic Int Semiconductor Ltd Time encoding modulator circuitry
JP7516302B2 (ja) * 2021-03-24 2024-07-16 株式会社東芝 アイソレータ
CN113783534B (zh) * 2021-09-15 2022-05-17 武汉市聚芯微电子有限责任公司 反馈型音频功率放大电路、音频放大装置及电子装置
CN114400980B (zh) * 2021-12-23 2025-12-16 国网山东省电力公司营销服务中心(计量中心) 一种基于波形预失真的闭环反馈放大电路及其工作方法
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EP4723456A1 (de) * 2024-10-07 2026-04-08 STMicroelectronics International N.V. Schaltung zur driftdetektion in elektrischen signalfiltern, entsprechende vorrichtung und verfahren

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US6373334B1 (en) * 2000-06-12 2002-04-16 Cirrus Logic, Inc. Real time correction of a digital PWM amplifier
US6466087B2 (en) * 2000-12-28 2002-10-15 Nokia Mobile Phones, Ltd. Method and apparatus providing digital error correction for a class D power stage
JP2002325460A (ja) * 2001-04-26 2002-11-08 Sony Corp Ｐｗｍ変調方法及びｐｗｍ変調装置
US6504427B2 (en) * 2001-05-31 2003-01-07 Motorola, Inc. Switching amplifier having digital correction and method therefor
WO2003005570A1 (en) * 2001-07-03 2003-01-16 Niigata Seimitsu Co., Ltd. Audio reproducing device and method, audio amplifier, and integrated circuit for audio amplifier
JP2003110376A (ja) * 2001-09-28 2003-04-11 Sony Corp 信号増幅装置
JP2003249825A (ja) * 2002-02-22 2003-09-05 Mitsubishi Electric Corp デルタシグマ変調を用いるｄ級増幅器
JP2004128662A (ja) * 2002-09-30 2004-04-22 Denon Ltd デジタルアンプ
JP2004214998A (ja) * 2003-01-06 2004-07-29 Denon Ltd デジタルアンプ
CN1525639A (zh) * 2003-02-26 2004-09-01 李相前 一种低失真d类放大器
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JP4148077B2 (ja) * 2003-09-10 2008-09-10 沖電気工業株式会社 Ｄ級信号増幅回路
JP4561459B2 (ja) * 2004-04-30 2010-10-13 ヤマハ株式会社 Ｄ級増幅器
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Also Published As

Publication number Publication date
EP1703635B1 (de) 2009-03-11
JP2007135177A (ja) 2007-05-31
US7538607B2 (en) 2009-05-26
EP1703635A1 (de) 2006-09-20
DE602006005529D1 (de) 2009-04-23
CN1835395A (zh) 2006-09-20
CN1835395B (zh) 2010-05-26
US20090102557A1 (en) 2009-04-23
US20060208794A1 (en) 2006-09-21
JP4802765B2 (ja) 2011-10-26
US7586370B2 (en) 2009-09-08

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