JP2011188447A5 - - Google Patents

Download PDF

Info

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
Authority
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)
Other versions
JP5388362B2 (ja
JP2011188447A (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 CN201180013478.2A priority patent/CN102792586B/zh
Priority to PCT/JP2011/000670 priority patent/WO2011111298A1/ja
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

Links

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
CN201180013478.2A CN102792586B (zh) 2010-03-11 2011-02-07 数字放大器
PCT/JP2011/000670 WO2011111298A1 (ja) 2010-03-11 2011-02-07 デジタルアンプ
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 (https=) 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 (https=)
JP (1) JP5388362B2 (https=)
CN (1) CN102792586B (https=)
WO (1) WO2011111298A1 (https=)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
JP6765035B2 (ja) 2014-12-24 2020-10-07 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
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
US10256777B2 (en) 2016-02-29 2019-04-09 Qualcomm Incorporated Audio amplifiers
US20170250654A1 (en) * 2016-02-29 2017-08-31 Qualcomm Incorporated Dynamic dead time management
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
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
US11189315B2 (en) 2018-03-28 2021-11-30 Panasonic Intellectual Property Management Co., Ltd. Audio processing device
US11552602B2 (en) * 2020-05-13 2023-01-10 Mediatek Inc. Class-D amplifier with high dynamic range

Family Cites Families (21)

* Cited by examiner, † Cited by third party
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
US6924700B2 (en) 2002-10-03 2005-08-02 Mitsubishi Denki Kabushiki Kaisha Class D amplifier
CN100468960C (zh) * 2003-11-26 2009-03-11 雅马哈株式会社 D类放大器
US20070279101A1 (en) 2004-04-21 2007-12-06 Takeshi Onodera Signal Output Circuit, Audio Signal Output Apparatus Using The Same, And Electronic Device
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
TWI361559B (en) * 2005-03-07 2012-04-01 Monolithic Power Systems Inc Audio amplifier with high power and high efficiency
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

Similar Documents

Publication Publication Date Title
JP2011188447A5 (https=)
JP5388362B2 (ja) デジタルアンプ
TW200746600A (en) Switching control circuit
WO2007092233A3 (en) Rf power amplifier controller circuit
WO2004027983A3 (en) Saturated power amplifier with selectable and variable output power levels
WO2014110289A3 (en) Programmably configured switchmode audio amplifier
WO2008019122A3 (en) Startup and shutdown click noise elimination for class d amplifier
JP5430438B2 (ja) デジタルアンプ
JP2010246115A5 (https=)
WO2012148077A3 (en) Digital condenser microphone having preamplifier with variable input impedance and method of controlling variable input impedance of preamplifier
US8643434B2 (en) Adjustable gain audio power amplifying circuit
WO2005060672A3 (en) Gate control circuit with soft start/stop function
EP1985014A4 (en) PULSE WIDTH MODULE WITH FEEDBACK / FEEDFORWARD PROTECTION
JP2018133892A5 (https=)
JP2011171967A5 (https=)
US20160006402A1 (en) Edge correction to mitigate total harmonic distortion in class d amplifier
WO2009040950A1 (ja) 音信号制御装置
JP2014187944A5 (https=)
JP2010087811A (ja) 音声出力装置
US20130187715A1 (en) Amplifier
FI20045263A7 (fi) Luokan DE ajovahvistin pietsosähköisiä toimilaitteita varten
TW200744316A (en) Control circuit of switching mode of charge pump and the method thereof
JP2017518573A5 (https=)
JP6475516B2 (ja) 圧力制御装置
JP2010118761A (ja) 音声出力装置