JP2011188447A5 - - Google Patents

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Publication number
JP2011188447A5
JP2011188447A5 JP2010054643A JP2010054643A JP2011188447A5 JP 2011188447 A5 JP2011188447 A5 JP 2011188447A5 JP 2010054643 A JP2010054643 A JP 2010054643A JP 2010054643 A JP2010054643 A JP 2010054643A JP 2011188447 A5 JP2011188447 A5 JP 2011188447A5
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JP
Japan
Prior art keywords
unit
digital amplifier
signal
input signal
switching
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.)
Granted
Application number
JP2010054643A
Other languages
English (en)
Japanese (ja)
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JP2011188447A (ja
JP5388362B2 (ja
Filing date
Publication date
Priority claimed from JP2010054643A external-priority patent/JP5388362B2/ja
Priority to JP2010054643A priority Critical patent/JP5388362B2/ja
Application filed filed Critical
Priority to US13/583,447 priority patent/US8975956B2/en
Priority to PCT/JP2011/000670 priority patent/WO2011111298A1/ja
Priority to CN201180013478.2A priority patent/CN102792586B/zh
Publication of JP2011188447A publication Critical patent/JP2011188447A/ja
Publication of JP2011188447A5 publication Critical patent/JP2011188447A5/ja
Publication of JP5388362B2 publication Critical patent/JP5388362B2/ja
Application granted granted Critical
Priority to US14/540,296 priority patent/US9083283B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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JP2010054643A 2010-03-11 2010-03-11 デジタルアンプ Expired - Fee Related JP5388362B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2010054643A JP5388362B2 (ja) 2010-03-11 2010-03-11 デジタルアンプ
US13/583,447 US8975956B2 (en) 2010-03-11 2011-02-07 Digital amplifier
PCT/JP2011/000670 WO2011111298A1 (ja) 2010-03-11 2011-02-07 デジタルアンプ
CN201180013478.2A CN102792586B (zh) 2010-03-11 2011-02-07 数字放大器
US14/540,296 US9083283B2 (en) 2010-03-11 2014-11-13 Digital amplifier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2010054643A JP5388362B2 (ja) 2010-03-11 2010-03-11 デジタルアンプ

Publications (3)

Publication Number Publication Date
JP2011188447A JP2011188447A (ja) 2011-09-22
JP2011188447A5 true JP2011188447A5 (cg-RX-API-DMAC10.html) 2013-01-10
JP5388362B2 JP5388362B2 (ja) 2014-01-15

Family

ID=44563136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2010054643A Expired - Fee Related JP5388362B2 (ja) 2010-03-11 2010-03-11 デジタルアンプ

Country Status (4)

Country Link
US (2) US8975956B2 (cg-RX-API-DMAC10.html)
JP (1) JP5388362B2 (cg-RX-API-DMAC10.html)
CN (1) CN102792586B (cg-RX-API-DMAC10.html)
WO (1) WO2011111298A1 (cg-RX-API-DMAC10.html)

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* Cited by examiner, † Cited by third party
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JP5454560B2 (ja) * 2011-12-06 2014-03-26 オンキヨー株式会社 スイッチングアンプ
US8981844B2 (en) * 2013-01-10 2015-03-17 Analog Devices Global Narrow voltage range multi-level output pulse modulated amplifier with one-bit hysteresis quantizer
JP6222980B2 (ja) * 2013-05-09 2017-11-01 キヤノン株式会社 音響装置及び電子機器
JP6461510B2 (ja) * 2014-08-06 2019-01-30 ローム株式会社 オーディオアンプ用の電源回路、電子機器、オーディオアンプへの電源電圧の供給方法
WO2016103696A1 (ja) 2014-12-24 2016-06-30 パナソニックＩｐマネジメント株式会社 音声信号増幅装置、電源装置、及び電源制御方法
JP6397811B2 (ja) * 2015-12-18 2018-09-26 株式会社東芝 半導体集積回路及び高周波アンテナスイッチ
US10218312B2 (en) 2016-02-29 2019-02-26 Qualcomm Incorporated Dynamic volume management in audio amplifiers
US20170250654A1 (en) * 2016-02-29 2017-08-31 Qualcomm Incorporated Dynamic dead time management
US10256777B2 (en) 2016-02-29 2019-04-09 Qualcomm Incorporated Audio amplifiers
US11088662B2 (en) * 2017-07-13 2021-08-10 Sharp Kabushiki Kaisha Digital amplifier and output device
CN107994877B (zh) * 2017-11-10 2021-08-27 矽恩微电子(厦门)有限公司 一种低辐射干扰，高效率，线性度高，鲁棒性的d类音频放大器的功率管驱动器
EP3779988A4 (en) 2018-03-28 2021-05-19 Panasonic Intellectual Property Management Co., Ltd. VOICE PROCESSING DEVICE
US11552602B2 (en) * 2020-05-13 2023-01-10 Mediatek Inc. Class-D amplifier with high dynamic range

Family Cites Families (21)

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Publication number Priority date Publication date Assignee Title
JPH09148851A (ja) * 1995-11-17 1997-06-06 Matsushita Electric Ind Co Ltd オーディオ用スイッチング電源
JPH10303657A (ja) * 1997-04-28 1998-11-13 Nec Corp Ｐｗｍ駆動装置
JP2004072707A (ja) * 2002-06-13 2004-03-04 Sony Corp パワーアンプ装置
JP3499236B1 (ja) 2002-08-28 2004-02-23 株式会社フライングモール ディジタル電力増幅器
JP4111845B2 (ja) * 2003-02-28 2008-07-02 三菱電機株式会社 Ｄ級増幅器
CN1277351C (zh) 2002-10-03 2006-09-27 三菱电机株式会社 D类放大器
CN100468960C (zh) * 2003-11-26 2009-03-11 雅马哈株式会社 D类放大器
WO2005104349A1 (ja) * 2004-04-21 2005-11-03 Rohm Co., Ltd 信号出力回路、それを用いたオーディオ信号出力装置、電子機器
JP2005341327A (ja) * 2004-05-28 2005-12-08 Victor Co Of Japan Ltd 電力増幅装置
JP4421949B2 (ja) * 2004-06-07 2010-02-24 アルパイン株式会社 デジタルアンプ
KR100617960B1 (ko) 2005-02-24 2006-08-30 삼성전자주식회사 자가 발진형 펄스 폭 변조회로 및 펄스 폭 변조 방법
CN1835393B (zh) * 2005-03-07 2010-10-13 美国芯源系统股份有限公司 高效大功率的音频放大器及其控制方法
JP2007088926A (ja) * 2005-09-22 2007-04-05 Victor Co Of Japan Ltd Ｄクラスアンプ
TWI329983B (en) * 2006-11-27 2010-09-01 Realtek Semiconductor Corp Methods for controlling power stage of power amplifier and related apparatuses
US8022756B2 (en) * 2007-05-15 2011-09-20 Qualcomm, Incorporated Output circuits with class D amplifier
JP2009033430A (ja) * 2007-07-26 2009-02-12 Denso Corp ディジタルアンプ
JP4978409B2 (ja) * 2007-10-03 2012-07-18 パナソニック株式会社 デジタル増幅装置
JP4885831B2 (ja) * 2007-11-29 2012-02-29 シャープ株式会社 Δς変調装置、遮断方法、プログラム、および、記録媒体
US7825726B2 (en) * 2008-10-30 2010-11-02 Freescale Semiconductor, Inc. Digital pulse width modulation for half bridge amplifiers
US8330538B2 (en) * 2009-11-11 2012-12-11 Amazing Microelectronic Corp. Self-oscillating audio amplifier and method for restraining the improved self-oscillating audio amplifier
US20130089161A1 (en) * 2011-10-06 2013-04-11 Douglas E. Heineman Low-Power Modulation in an Amplifier

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