DE69919500D1 - PWM Leistungsverstärker mit digitalem Eingang - Google Patents

PWM Leistungsverstärker mit digitalem Eingang

Info

Publication number
DE69919500D1
DE69919500D1 DE69919500T DE69919500T DE69919500D1 DE 69919500 D1 DE69919500 D1 DE 69919500D1 DE 69919500 T DE69919500 T DE 69919500T DE 69919500 T DE69919500 T DE 69919500T DE 69919500 D1 DE69919500 D1 DE 69919500D1
Authority
DE
Germany
Prior art keywords
power amplifier
digital input
pwm power
pwm
digital
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.)
Expired - Fee Related
Application number
DE69919500T
Other languages
English (en)
Other versions
DE69919500T2 (de
Inventor
Edoardo Botti
Antonio Grosso
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
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 STMicroelectronics SRL filed Critical STMicroelectronics SRL
Application granted granted Critical
Publication of DE69919500D1 publication Critical patent/DE69919500D1/de
Publication of DE69919500T2 publication Critical patent/DE69919500T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/68—Digital/analogue converters with conversions of different sensitivity, i.e. one conversion relating to the more significant digital bits and another conversion to the less significant bits
    • 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
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval
    • H03M1/822—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation
    • H03M1/825—Digital/analogue converters with intermediate conversion to time interval using pulse width modulation by comparing the input signal with a digital ramp signal

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE69919500T 1999-02-11 1999-02-11 PWM Leistungsverstärker mit digitalem Eingang Expired - Fee Related DE69919500T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99830073A EP1028524B1 (de) 1999-02-11 1999-02-11 PWM Leistungsverstärker mit digitalem Eingang

Publications (2)

Publication Number Publication Date
DE69919500D1 true DE69919500D1 (de) 2004-09-23
DE69919500T2 DE69919500T2 (de) 2005-09-08

Family

ID=8243274

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69919500T Expired - Fee Related DE69919500T2 (de) 1999-02-11 1999-02-11 PWM Leistungsverstärker mit digitalem Eingang

Country Status (4)

Country Link
US (1) US6594309B1 (de)
EP (1) EP1028524B1 (de)
JP (1) JP2000244257A (de)
DE (1) DE69919500T2 (de)

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KR100554066B1 (ko) * 2001-08-17 2006-02-22 (주)펄서스 테크놀러지 가변 평균 스위칭 주파수를 갖는 펄스폭 변조 방식 오디오증폭기
SE0104403D0 (sv) * 2001-12-21 2001-12-21 Bang & Olufsen Powerhouse As Attenuation control for digital power converters
KR100435182B1 (ko) * 2002-02-05 2004-06-09 주식회사 디지털앤아날로그 Ｐｗｍ 부궤환에 의한 디지털 ｐｗｍ 입력 ｄ급 음향 증폭기
KR100906427B1 (ko) * 2002-08-08 2009-07-09 엘지전자 주식회사 멀티 채널 펄스 폭 변조기에서의 채널별 온/오프제어장치
KR100932501B1 (ko) * 2002-08-06 2009-12-17 엘지전자 주식회사 멀티 채널 펄스 폭 변조기에서의 채널별 게인 조절장치
KR100538361B1 (ko) * 2002-08-10 2005-12-21 엘지전자 주식회사 멀티 채널 펄스 폭 변조기에서의 노이즈 제거장치
US7580532B2 (en) 2002-08-06 2009-08-25 Lg Electronics Inc. Multi-channel pulse width modulation apparatus
US7142597B2 (en) * 2002-09-26 2006-11-28 Freescale Semiconductor, Inc. Full bridge integral noise shaping for quantization of pulse width modulation signals
EP1418667A1 (de) * 2002-11-07 2004-05-12 Dialog Semiconductor GmbH Klasse-D Verstärker mit mehrfachen Ebenen durch drei Ausgangsniveaus
US20040223545A1 (en) * 2003-03-04 2004-11-11 Lee Ying Lau Multi-level pulse width modulation in digital system
US20040189502A1 (en) * 2003-03-04 2004-09-30 Lee Ying Lau Multi-level pulse width modulation in digital system
US7259704B2 (en) 2003-03-28 2007-08-21 Ess Technology, Inc. System and method for compensating for error in a sigma delta circuit
US7058464B2 (en) * 2003-07-17 2006-06-06 Ess Technology, Inc. Device and method for signal processing
WO2005018089A1 (en) * 2003-08-18 2005-02-24 Koninklijke Philips Electronics N. V. Audio power amplifier
US7515072B2 (en) 2003-09-25 2009-04-07 International Rectifier Corporation Method and apparatus for converting PCM to PWM
US7190224B2 (en) * 2003-11-06 2007-03-13 Marvell World Trade Ltd. Class D amplifier
CN1310427C (zh) * 2004-02-25 2007-04-11 凌阳科技股份有限公司 脉波宽度调变电路与方法
US7130346B2 (en) * 2004-05-14 2006-10-31 Freescale Semiconductor, Inc. Method and apparatus having a digital PWM signal generator with integral noise shaping
KR100810322B1 (ko) * 2004-10-29 2008-03-07 삼성전자주식회사 이동 통신용 고효율 전력 증폭 장치 및 방법
US7138935B1 (en) 2005-09-26 2006-11-21 Ess Technology, Inc. Low noise digital to signal interval converter with audio applications
US7570693B2 (en) * 2005-09-26 2009-08-04 Ess Technology, Inc. Low noise digital to pulse width modulated converter with audio applications
US7116257B1 (en) 2005-09-26 2006-10-03 Ess Technology, Inc. Low noise digital to analog converter with audio applications
US7492219B1 (en) 2006-08-10 2009-02-17 Marvell International Ltd. Power efficient amplifier
US7724161B1 (en) 2006-12-12 2010-05-25 Marvell International Ltd. Truncation for three-level digital amplifier
JP4793294B2 (ja) * 2007-03-16 2011-10-12 ヤマハ株式会社 デジタル入力型ｄ級増幅器
WO2009043017A1 (en) * 2007-09-27 2009-04-02 Nanoamp Solutions, Inc. (Cayman) A transmitter for multiple standards
US7598895B1 (en) * 2008-04-01 2009-10-06 Silicon Laboratories, Inc. System and method of altering a PWM carrier power spectrum
US7791521B2 (en) * 2008-04-01 2010-09-07 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
US7701307B2 (en) * 2008-04-01 2010-04-20 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
EP2128990B1 (de) * 2008-05-28 2013-03-06 Siemens Aktiengesellschaft Verfahren und Schaltung zur Umwandlung eines N-bit-Digitalwerts in einen Analogwert
US8130128B2 (en) 2010-03-30 2012-03-06 Silicon Laboratores Inc. System and method for generating shaped noise
US8217820B2 (en) 2010-11-04 2012-07-10 Maxim Integrated Products, Inc. Using multi-level pulse width modulated signal for real time noise cancellation
EP2693632B1 (de) * 2011-03-28 2018-03-07 Panasonic Intellectual Property Management Co., Ltd. Verstärker und audiovorrichtung mit dem verstärker
US8570202B2 (en) 2012-02-03 2013-10-29 Sigear Europe Sarl Digital-to-analog converter implementing hybrid conversion architecture
JP2013172293A (ja) * 2012-02-21 2013-09-02 Cri Middleware Co Ltd アナログ信号生成方法、アナログ信号生成装置、およびプログラム
US9705485B1 (en) * 2015-07-13 2017-07-11 Marvell Israel (M.I.S.L) Ltd High-resolution current and method for generating a current
EP3211800B1 (de) 2016-02-25 2019-10-16 Huawei Technologies Co., Ltd. Signalverarbeitungsanordnung für einen sender
US10848176B1 (en) * 2019-10-01 2020-11-24 Raytheon Company Digital delta-sigma modulator with non-recursive computation of residues

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Publication number Priority date Publication date Assignee Title
CA1289666C (en) * 1983-10-25 1991-09-24 Masashi Takeda Digital-to-analog converting system
EP0216536B1 (de) * 1985-08-29 1992-11-11 Canon Kabushiki Kaisha Bildverarbeitungsvorrichtung
US4673887A (en) * 1986-01-03 1987-06-16 Honeywell Inc. Digital driver for fixed power amplifier
US4683439A (en) * 1986-01-09 1987-07-28 Honeywell Inc. Digitally driven switching power amplifier system
JPH02214224A (ja) * 1989-02-14 1990-08-27 Sony Corp ディジタル・アナログ変換器
JPH0421215A (ja) * 1990-05-16 1992-01-24 Sony Corp デジタル・アナログ変換器
JPH06245290A (ja) * 1992-11-12 1994-09-02 At & T Global Inf Solutions Internatl Inc パーソナルコンピューターにおける音声発生の方法および装置
US5406284A (en) * 1992-12-31 1995-04-11 Monolith Technologies Corporation Methods and apparatus for the quantization and analog conversion of digital signals
US5959501A (en) * 1998-01-14 1999-09-28 Harris Corporation Class D amplifier with scaled clock and related methods
US6014055A (en) * 1998-02-06 2000-01-11 Intersil Corporation Class D amplifier with reduced clock requirement and related methods

Also Published As

Publication number Publication date
JP2000244257A (ja) 2000-09-08
EP1028524A1 (de) 2000-08-16
US6594309B1 (en) 2003-07-15
DE69919500T2 (de) 2005-09-08
EP1028524B1 (de) 2004-08-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee