ATE548796T1 - Digital-pwm-verstärker mit auf simulation basierender rückkopplung - Google Patents

Digital-pwm-verstärker mit auf simulation basierender rückkopplung

Info

Publication number
ATE548796T1
ATE548796T1 AT06846841T AT06846841T ATE548796T1 AT E548796 T1 ATE548796 T1 AT E548796T1 AT 06846841 T AT06846841 T AT 06846841T AT 06846841 T AT06846841 T AT 06846841T AT E548796 T1 ATE548796 T1 AT E548796T1
Authority
AT
Austria
Prior art keywords
plant
adc
digital
audio signal
based feedback
Prior art date
Application number
AT06846841T
Other languages
English (en)
Inventor
Jack Andersen
Peter Craven
Michael Kost
Daniel Chieng
Larry Hand
Wilson Taylor
Original Assignee
D2Audio 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 D2Audio Corp filed Critical D2Audio Corp
Application granted granted Critical
Publication of ATE548796T1 publication Critical patent/ATE548796T1/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
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
AT06846841T 2005-12-30 2006-12-28 Digital-pwm-verstärker mit auf simulation basierender rückkopplung ATE548796T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/324,132 US7286009B2 (en) 2005-12-30 2005-12-30 Digital PWM amplifier with simulation-based feedback
PCT/US2006/062687 WO2007079396A2 (en) 2005-12-30 2006-12-28 Digital pwm amplifier with simulation-based feedback

Publications (1)

Publication Number Publication Date
ATE548796T1 true ATE548796T1 (de) 2012-03-15

Family

ID=37401002

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06846841T ATE548796T1 (de) 2005-12-30 2006-12-28 Digital-pwm-verstärker mit auf simulation basierender rückkopplung

Country Status (6)

Country Link
US (1) US7286009B2 (de)
EP (1) EP1972055B1 (de)
JP (1) JP5139321B2 (de)
CN (1) CN101390287B (de)
AT (1) ATE548796T1 (de)
WO (1) WO2007079396A2 (de)

Families Citing this family (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2483378A1 (en) * 2004-10-01 2006-04-01 Aleksandar Prodic A digital controller for dc-dc switching converters that allows operation at ultra-high constant switching frequencies
US7576606B2 (en) * 2007-07-25 2009-08-18 D2Audio Corporation Digital PWM amplifier having a low delay corrector
JP4878376B2 (ja) * 2006-01-31 2012-02-15 ディー２オーディオ コーポレイション パルス幅変調の非対称的な信号レベルに係るシステム及び方法
US7362254B2 (en) * 2006-01-31 2008-04-22 D2Audio Corporation Systems and methods for minimizing delay in a control path
US8644396B2 (en) 2006-04-18 2014-02-04 Qualcomm Incorporated Waveform encoding for wireless applications
US7576605B2 (en) * 2006-04-20 2009-08-18 Qualcomm Incorporated Low power output stage
TWI405444B (zh) 2006-04-26 2013-08-11 Qualcomm Inc 用於無線通訊之方法、電子裝置、電腦程式產品、耳機、手錶、醫療裝置及感測器
US8406794B2 (en) 2006-04-26 2013-03-26 Qualcomm Incorporated Methods and apparatuses of initiating communication in wireless networks
US8289159B2 (en) 2006-04-26 2012-10-16 Qualcomm Incorporated Wireless localization apparatus and method
US7822800B2 (en) * 2006-05-19 2010-10-26 Camco Produktions-Und Vertriebs Gmbh Fur Beschallungs-Und Beleuchtungsanlagen Apparatus and method for performing a calculation operation
KR100728041B1 (ko) * 2006-06-23 2007-06-14 삼성전자주식회사 디지털 ｐｗｍ 신호를 저장 재생하는 오디오 시스템 및 그방법
US7388430B2 (en) * 2006-06-27 2008-06-17 Lucent Technologies Inc. Enhanced digital predistortion
US7576604B2 (en) * 2006-12-15 2009-08-18 Bin Xu All-digital class-D audio amplifier
US7391346B1 (en) * 2007-02-05 2008-06-24 Sigmatel, Inc. Switching amplifier system and method
US7728658B2 (en) * 2007-07-25 2010-06-01 D2Audio Corporation Low-noise, low-distortion digital PWM amplifier
US8369782B1 (en) 2007-08-13 2013-02-05 Marvell International Ltd. Bluetooth wideband scan mode
US8577305B1 (en) 2007-09-21 2013-11-05 Marvell International Ltd. Circuits and methods for generating oscillating signals
US8279796B1 (en) * 2007-11-16 2012-10-02 Bnsf Railway Company Multiple-channel software defined radios and systems using the same
WO2009072071A1 (en) * 2007-12-07 2009-06-11 Nxp B.V. Transmitter comprising a pulse width pulse position modulator and method thereof
US8588705B1 (en) 2007-12-11 2013-11-19 Marvell International Ltd. System and method of determining Power over Ethernet impairment
WO2009142718A2 (en) * 2008-05-21 2009-11-26 Silicon Laboratories Inc. Predictive feedback compensation for pwm switching amplifiers
JP5343276B2 (ja) 2008-06-16 2013-11-13 マーベル ワールド トレード リミテッド 近距離無線通信
US8600324B1 (en) 2008-06-27 2013-12-03 Marvell International Ltd Circuit and method for adjusting a digitally controlled oscillator
US8472968B1 (en) 2008-08-11 2013-06-25 Marvell International Ltd. Location-based detection of interference in cellular communications systems
US20100063786A1 (en) * 2008-09-11 2010-03-11 Harke Michael C Co-Simulation Process
US8374233B2 (en) 2008-09-25 2013-02-12 Intel Mobile Communications GmbH IQ-modulation system and method for switched amplifiers
US9288764B1 (en) 2008-12-31 2016-03-15 Marvell International Ltd. Discovery-phase power conservation
US8392495B2 (en) * 2009-02-09 2013-03-05 Associated Universities, Inc. Reflectionless filters
US8472427B1 (en) 2009-04-06 2013-06-25 Marvell International Ltd. Packet exchange arbitration for coexisting radios
JP5423266B2 (ja) * 2009-09-14 2014-02-19 富士電機株式会社 デジタル制御スイッチング電源装置
US9066369B1 (en) 2009-09-16 2015-06-23 Marvell International Ltd. Coexisting radio communication
CN102044966B (zh) * 2009-10-26 2013-01-09 立锜科技股份有限公司 具有自适应电压位置控制的电源转换器控制电路及其控制方法
US8767771B1 (en) 2010-05-11 2014-07-01 Marvell International Ltd. Wakeup beacons for mesh networks
CN103069714B (zh) 2010-08-13 2016-05-04 皇家飞利浦电子股份有限公司 切换模式的供电设备和方法
CN103026618B (zh) * 2010-08-30 2015-07-29 松下电器产业株式会社 放大装置
US8817662B2 (en) 2010-10-20 2014-08-26 Marvell World Trade Ltd. Pre-association discovery
EP2633621B1 (de) * 2010-10-27 2017-08-30 Merus Audio ApS Audioverstärker mit mehrstufiger pulsweitenmodulation
US8750278B1 (en) 2011-05-26 2014-06-10 Marvell International Ltd. Method and apparatus for off-channel device invitation
US8983557B1 (en) 2011-06-30 2015-03-17 Marvell International Ltd. Reducing power consumption of a multi-antenna transceiver
US9125216B1 (en) 2011-09-28 2015-09-01 Marvell International Ltd. Method and apparatus for avoiding interference among multiple radios
US9215708B2 (en) 2012-02-07 2015-12-15 Marvell World Trade Ltd. Method and apparatus for multi-network communication
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
US8964427B2 (en) * 2012-06-29 2015-02-24 Rockwell Automation Technologies, Inc. Adaptive online filter for DC offset elimination
US9450649B2 (en) 2012-07-02 2016-09-20 Marvell World Trade Ltd. Shaping near-field transmission signals
CN102832887B (zh) * 2012-09-11 2015-07-29 电子科技大学 高保真d类音频放大器
CN103151997A (zh) * 2013-03-18 2013-06-12 成都龙腾中远信息技术有限公司 高保真功率放大器
JP6221518B2 (ja) 2013-05-24 2017-11-01 富士通株式会社 電力増幅装置、送信機および電力増幅装置制御方法
TWI488020B (zh) * 2013-06-25 2015-06-11 Univ Shu Te Power system modeling method
CN107078708B (zh) 2014-06-25 2021-02-09 联合大学公司 子网络增强型无反射滤波器拓扑
US9407238B2 (en) * 2014-08-28 2016-08-02 Qualcomm Technologies International, Ltd. Devices and methods for pulse-width modulation
GB2550243B (en) * 2014-08-29 2018-03-21 Cirrus Logic Int Semiconductor Ltd Class D amplifier circuit
US9431973B2 (en) * 2014-09-08 2016-08-30 Qualcomm Technologies International, Ltd. Pulse-width modulation generator
US9923540B2 (en) 2014-11-05 2018-03-20 Associated Universities, Inc. Transmission line reflectionless filters
KR102378853B1 (ko) * 2014-12-03 2022-03-24 엠큐에이 리미티드 고해상도 오디오의 사전-응답 주파수에서 그룹 딜레이를 갖는 비선형 필터
CN104702290A (zh) * 2014-12-30 2015-06-10 上海贝岭股份有限公司 低噪声过采样模数转换器
US10324169B2 (en) * 2015-04-06 2019-06-18 The United States Of America As Represented By The Secretary Of The Navy. Digital compensation for amplifier-induced instability
US10263592B2 (en) 2015-10-30 2019-04-16 Associated Universities, Inc. Optimal response reflectionless filters
US10530321B2 (en) 2015-10-30 2020-01-07 Associated Universities, Inc. Deep rejection reflectionless filters
US10374577B2 (en) 2015-10-30 2019-08-06 Associated Universities, Inc. Optimal response reflectionless filters
US10069662B2 (en) * 2015-11-10 2018-09-04 Infineon Technologies Ag Mixed analog-digital pulse-width modulator
US10367430B2 (en) 2016-01-11 2019-07-30 Infineon Technologies Ag System and method for a variable flow transducer
NL2016605B1 (en) * 2016-04-14 2017-11-02 Axign B V Digital audio converter and amplifier controller.
WO2018176190A1 (zh) * 2017-03-27 2018-10-04 华为技术有限公司 数字功率放大器
CN107911779B (zh) * 2017-11-10 2020-10-23 佛山市柯博明珠数码电子有限公司 一种数字信号驱动的扬声器系统
US10555269B2 (en) 2017-11-24 2020-02-04 Mediatek Inc. Amplifier circuit having controllable output stage
US10587232B2 (en) * 2018-05-17 2020-03-10 Cirrus Logic, Inc. Class D amplifiers
US10608630B1 (en) * 2018-06-26 2020-03-31 Xilinx, Inc. Method of increased supply rejection on single-ended complementary metal-oxide-semiconductor (CMOS) switches
CN109217827B (zh) * 2018-08-31 2022-07-01 南京矽力微电子技术有限公司 D类功率放大器及其补偿方法和数字信号处理装置
US10985951B2 (en) 2019-03-15 2021-04-20 The Research Foundation for the State University Integrating Volterra series model and deep neural networks to equalize nonlinear power amplifiers
US11275057B2 (en) 2019-04-03 2022-03-15 Infineon Technologies Ag Photoacoustic sensor valve
US11424724B2 (en) 2019-12-31 2022-08-23 Taiwan Semiconductor Manufacturing Company, Ltd. Ampilfier with VCO-based ADC
CN113390404B (zh) * 2021-08-18 2021-11-23 浙江航天润博测控技术有限公司 一种光纤陀螺用闭环控制方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6191653B1 (en) * 1998-11-18 2001-02-20 Ericsson Inc. Circuit and method for linearizing amplitude modulation in a power amplifier
US6373334B1 (en) * 2000-06-12 2002-04-16 Cirrus Logic, Inc. Real time correction of a digital PWM amplifier
US6593806B1 (en) * 2001-08-10 2003-07-15 Cirrus Logic, Inc. Circuits and methods for compensating switched mode amplifiers
DE60228962D1 (de) * 2002-10-02 2008-10-30 Dialog Semiconductor Gmbh Klasse-D-Verstärker mit digitaler Rückkopplung
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
JP2006093766A (ja) * 2004-09-21 2006-04-06 Matsushita Electric Ind Co Ltd ディジタル音声再生装置

Also Published As

Publication number Publication date
JP2009522881A (ja) 2009-06-11
EP1972055B1 (de) 2012-03-07
EP1972055A2 (de) 2008-09-24
WO2007079396A2 (en) 2007-07-12
US20070152750A1 (en) 2007-07-05
EP1972055A4 (de) 2009-11-11
CN101390287A (zh) 2009-03-18
CN101390287B (zh) 2012-08-15
US7286009B2 (en) 2007-10-23
WO2007079396A3 (en) 2008-10-16
JP5139321B2 (ja) 2013-02-06

Similar Documents

Publication Publication Date Title
ATE548796T1 (de) Digital-pwm-verstärker mit auf simulation basierender rückkopplung
MX2016007280A (es) Metodo y aparato para implementar un sistema de altavoz digital basado en modulación ?-s multibit.
ATE522980T1 (de) Sigma-delta-modulation mit offset
TW200705830A (en) Third order sigma-delta modulator
EP1503495A3 (de) Digitales vorwärtsgekoppeltes System
ATE528852T1 (de) Getakteter linearverstärker für basisbandsignalverstärkung
ATE425581T1 (de) Klasse-d verstärker
JP2012519415A5 (de)
ATE366483T1 (de) Umwandlung eines pcm-signals in ein gleichmässig pulsbreitenmoduliertes signal
WO2008029091A3 (en) Switching amplifier
EP1932308A4 (de) Verstärkersystem mit analoger polynomischer vorverzerrung mit sub-nyquist-digitalanpassung
WO2007124422A3 (en) Low power output stage
TW200644410A (en) Amplifier and method for switching amplifier
ATE413757T1 (de) Empfänger und verfahren mit ausgleich von leitungsungleichheiten
GB0521411D0 (en) A sampling module and a method of sampling one or more analogue characteristics of a power transmission system
TW200735526A (en) Class-D amplifier and method therefor
WO2006030363A3 (en) Arrangement for pulse-width modulating an input signal
WO2008092033A8 (en) Method and apparatus for producing triangular waveform with low audio band noise content
GB201300863D0 (en) Solid state audio power amplifier
ATE467316T1 (de) Räumlich robuste audiovorkompensierung
WO2004102790A3 (en) Digital switching power amplifier
DE502007006264D1 (de) Vorrichtung zur geräuschunterdrückung bei einem audiosignal
ATE343253T1 (de) Pulsmodulator und verfahren zur pulsmodulation
HRP20090384T1 (en) Method for controlling an eer power amplifier for digital transmission
ATE542324T1 (de) Audioprozessor