JP4368920B2 - 積分ノイズ・シェーピングによるデジタルｐｗｍ信号発生器を有する装置および方法 - Google Patents

積分ノイズ・シェーピングによるデジタルｐｗｍ信号発生器を有する装置および方法 Download PDF

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JP4368920B2
JP4368920B2 JP2007513151A JP2007513151A JP4368920B2 JP 4368920 B2 JP4368920 B2 JP 4368920B2 JP 2007513151 A JP2007513151 A JP 2007513151A JP 2007513151 A JP2007513151 A JP 2007513151A JP 4368920 B2 JP4368920 B2 JP 4368920B2
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signal
period
random
duty ratio
digital
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JP2007537664A5 (enExample
JP2007537664A (ja
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ミドヤ、パラブ
ファン、ジン
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NXP USA Inc
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NXP USA Inc
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    • 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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/114—Indexing scheme relating to amplifiers the amplifier comprising means for electro-magnetic interference [EMI] protection
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/264—An operational amplifier based integrator or transistor based integrator 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/372—Noise reduction and elimination in amplifier

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
JP2007513151A 2004-05-14 2005-04-13 積分ノイズ・シェーピングによるデジタルｐｗｍ信号発生器を有する装置および方法 Expired - Fee Related JP4368920B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/845,949 US7130346B2 (en) 2004-05-14 2004-05-14 Method and apparatus having a digital PWM signal generator with integral noise shaping
PCT/US2005/012397 WO2005114838A1 (en) 2004-05-14 2005-04-13 Method and apparatus having a digital pwm signal generator with integral noise shaping

Publications (3)

Publication Number Publication Date
JP2007537664A JP2007537664A (ja) 2007-12-20
JP2007537664A5 JP2007537664A5 (enExample) 2008-05-22
JP4368920B2 true JP4368920B2 (ja) 2009-11-18

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Family Applications (1)

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JP2007513151A Expired - Fee Related JP4368920B2 (ja) 2004-05-14 2005-04-13 積分ノイズ・シェーピングによるデジタルｐｗｍ信号発生器を有する装置および方法

Country Status (4)

Country Link
US (1) US7130346B2 (enExample)
JP (1) JP4368920B2 (enExample)
CN (1) CN1954495B (enExample)
WO (1) WO2005114838A1 (enExample)

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US7342528B2 (en) * 2006-06-15 2008-03-11 Semiconductor Components Industries, L.L.C. Circuit and method for reducing electromagnetic interference
KR100765790B1 (ko) * 2006-06-30 2007-10-12 삼성전자주식회사 모바일 기기의 가변 전원공급 장치 및 방법
US7667552B2 (en) * 2007-04-10 2010-02-23 Freescale Semiconductor, Inc. Discrete dithered frequency pulse width modulation
US7626519B2 (en) 2007-05-30 2009-12-01 Texas Instruments Incorporated Pulse-width modulation of pulse-code modulated signals at selectable or dynamically varying sample rates
JP4985380B2 (ja) * 2007-12-20 2012-07-25 ヤマハ株式会社 信号生成装置およびｄ級増幅装置
US8144760B2 (en) * 2008-02-01 2012-03-27 Micrel, Incorporated Pulse width modulation circuits and methods
US7825726B2 (en) * 2008-10-30 2010-11-02 Freescale Semiconductor, Inc. Digital pulse width modulation for half bridge amplifiers
US7777563B2 (en) * 2008-12-18 2010-08-17 Freescale Semiconductor, Inc. Spread spectrum pulse width modulation method and apparatus
US8278902B2 (en) * 2009-07-15 2012-10-02 Freescale Semiconductor, Inc. DC to DC switching power converter controller using spread spectrum PWM
KR100981734B1 (ko) 2009-09-30 2010-09-10 퓨젼칩스주식회사 비티엘 드라이버용 펄스폭변조신호 발생장치
US9654128B2 (en) 2010-01-05 2017-05-16 Syntropy Systems, Llc Multi-mode sampling/quantization converters
EP2408109A1 (en) * 2010-07-15 2012-01-18 Siemens Aktiengesellschaft Apparatus for providing pulse width modulated control signals to an inverter
EP2432124B1 (en) * 2010-09-21 2016-05-11 Harman Becker Automotive Systems GmbH Pulse width modulator
DE102010047129A1 (de) * 2010-09-30 2012-04-05 Infineon Technologies Ag Verfahren zur Ansteuerung von Lautsprechern
US8217820B2 (en) * 2010-11-04 2012-07-10 Maxim Integrated Products, Inc. Using multi-level pulse width modulated signal for real time noise cancellation
EP2461485B1 (en) 2010-12-01 2013-07-31 Dialog Semiconductor GmbH A device and method for the transmission and reception of high-fidelity audio using a single wire
KR101179413B1 (ko) * 2010-12-24 2012-09-03 삼성전기주식회사 디지털 ｐｗｍ 생성기 및 발광소자 구동 장치
US8558497B2 (en) * 2011-07-15 2013-10-15 Cypress Semiconductor Corporation Reduced electromagnetic interference for pulse-width modulation
US9389628B2 (en) * 2012-04-20 2016-07-12 Intel Deutschland Gmbh Digitally controlled buck-boost regulator having a custom mapping controller
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
US8988049B2 (en) 2013-06-19 2015-03-24 Futurewei Technologies, Inc. Multiple switch power stage control tracking PCM signal input
US9634700B2 (en) 2014-08-11 2017-04-25 Syntropy Systems, Llc Distributed noise shaping apparatus
US9391656B2 (en) * 2014-08-11 2016-07-12 Syntropy Systems, Llc Distributed noise shaping apparatus
US9843317B2 (en) 2014-09-15 2017-12-12 Xiaomi Inc. Method and device for processing PWM data
US9425780B1 (en) * 2015-03-31 2016-08-23 Analog Devices, Inc. Apparatus and methods for anti-aliasing in electronic circuits
CN104852729B (zh) * 2015-04-14 2018-05-11 华为技术有限公司 一种抑制数字时钟的高次谐波干扰的电路和方法
US10020783B2 (en) 2015-07-01 2018-07-10 Bei Electronics Llc Class D amplifier using Fs/4 modulation and envelope tracking power supplies
KR101779698B1 (ko) 2016-02-18 2017-09-18 엘에스산전 주식회사 Pwm 신호의 생성 방법 및 장치
KR102466677B1 (ko) 2017-08-22 2022-11-14 삼성전자주식회사 라이다 및 그 동작방법
CN116988782B (zh) * 2023-08-14 2024-03-26 北京港震科技股份有限公司 一种基于单芯电缆的深井供电与数据传输方法及系统

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US5933453A (en) * 1997-04-29 1999-08-03 Hewlett-Packard Company Delta-sigma pulse width modulator control circuit
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US6351184B1 (en) * 1999-07-29 2002-02-26 Tripath Technology, Inc. Dynamic switching frequency control for a digital switching amplifier
US6414613B1 (en) * 2000-01-05 2002-07-02 Motorola, Inc. Apparatus for noise shaping a pulse width modulation (PWM) signal and method therefor
US6515604B2 (en) * 2000-04-17 2003-02-04 Tripath Technology, Inc. Mixed signal processing unit with improved distortion and noise characteristics
US6545533B2 (en) * 2000-12-18 2003-04-08 Texas Instruments Incorporated Class D audio speaker amplifier circuit with pseudo noise modulation
JP2003079061A (ja) * 2001-08-30 2003-03-14 Yamaha Corp 携帯オーディオ機器用充電器及びオーディオシステム
US6605991B2 (en) * 2001-08-30 2003-08-12 Motorola, Inc. Circuitry for creating a spectral null in a differential output switching amplifier and method therefor
US7071752B2 (en) * 2001-08-31 2006-07-04 Texas Instruments Incorporated Amplifiers
US6587010B2 (en) * 2001-11-27 2003-07-01 Motorola, Inc. Modulated radio frequency signal generation method and modulated signal source
US6549085B1 (en) * 2001-11-27 2003-04-15 Motorola, Inc. Natural sampling method and device for RF pulse-width modulation
US6606044B2 (en) * 2002-01-02 2003-08-12 Motorola, Inc. Method and apparatus for generating a pulse width modulated signal
US7142597B2 (en) * 2002-09-26 2006-11-28 Freescale Semiconductor, Inc. Full bridge integral noise shaping for quantization of pulse width modulation signals

Also Published As

Publication number Publication date
US20050254573A1 (en) 2005-11-17
US7130346B2 (en) 2006-10-31
CN1954495A (zh) 2007-04-25
WO2005114838A1 (en) 2005-12-01
JP2007537664A (ja) 2007-12-20
CN1954495B (zh) 2011-11-09

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