DK1406381T3 - Klasse-D forstærker med digital feedback - Google Patents

Klasse-D forstærker med digital feedback

Info

Publication number
DK1406381T3
DK1406381T3 DK02368108T DK02368108T DK1406381T3 DK 1406381 T3 DK1406381 T3 DK 1406381T3 DK 02368108 T DK02368108 T DK 02368108T DK 02368108 T DK02368108 T DK 02368108T DK 1406381 T3 DK1406381 T3 DK 1406381T3
Authority
DK
Denmark
Prior art keywords
class
amplifier
pulse area
digital feedback
pulse
Prior art date
Application number
DK02368108T
Other languages
English (en)
Inventor
Lars Lennartson
Johan Nilson
Horst Knoedgen
Original Assignee
Dialog Semiconductor Gmbh
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 Dialog Semiconductor Gmbh filed Critical Dialog Semiconductor Gmbh
Application granted granted Critical
Publication of DK1406381T3 publication Critical patent/DK1406381T3/da

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
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/322—Continuously compensating for, or preventing, undesired influence of physical parameters
    • 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
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DK02368108T 2002-10-02 2002-10-02 Klasse-D forstærker med digital feedback DK1406381T3 (da)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02368108A EP1406381B1 (en) 2002-10-02 2002-10-02 Class-D amplifier with digital feedback

Publications (1)

Publication Number Publication Date
DK1406381T3 true DK1406381T3 (da) 2009-02-09

Family

ID=31985162

Family Applications (1)

Application Number Title Priority Date Filing Date
DK02368108T DK1406381T3 (da) 2002-10-02 2002-10-02 Klasse-D forstærker med digital feedback

Country Status (7)

Country Link
US (1) US6759899B2 (da)
EP (1) EP1406381B1 (da)
JP (1) JP2004274712A (da)
KR (1) KR20040030377A (da)
AT (1) ATE408929T1 (da)
DE (1) DE60228962D1 (da)
DK (1) DK1406381T3 (da)

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US7676030B2 (en) * 2002-12-10 2010-03-09 Ewi Holdings, Inc. System and method for personal identification number distribution and delivery
US20050229003A1 (en) * 2004-04-09 2005-10-13 Miles Paschini System and method for distributing personal identification numbers over a computer network
US10205721B2 (en) * 2002-12-10 2019-02-12 Ewi Holdings, Inc. System and method for distributing personal identification numbers over a computer network
US7131578B2 (en) 2003-05-28 2006-11-07 Ewi Holdings, Inc. System and method for electronic prepaid account replenishment
US7023267B2 (en) * 2004-02-17 2006-04-04 Prophesi Technologies, Inc. Switching power amplifier using a frequency translating delta sigma modulator
US12260396B2 (en) 2010-01-08 2025-03-25 Blackhawk Network, Inc. System for payment via electronic wallet
US11599873B2 (en) 2010-01-08 2023-03-07 Blackhawk Network, Inc. Systems and methods for proxy card and/or wallet redemption card transactions
US7280644B2 (en) 2004-12-07 2007-10-09 Ewi Holdings, Inc. Transaction processing platform for faciliating electronic distribution of plural prepaid services
US11475436B2 (en) 2010-01-08 2022-10-18 Blackhawk Network, Inc. System and method for providing a security code
US20060045244A1 (en) * 2004-08-24 2006-03-02 Darren New Method and apparatus for receipt printing and information display in a personal identification number delivery system
US7023269B2 (en) 2004-09-08 2006-04-04 Gpe International Limited Digital amplifier and methods for enhancing resolution and dynamic range of a digital amplifier
JP2006238293A (ja) * 2005-02-28 2006-09-07 Yamaha Corp Ｄ級増幅器
US7289050B1 (en) * 2005-06-27 2007-10-30 Qualcomm Incorporated Amplification method and apparatus
KR101001115B1 (ko) * 2005-06-27 2010-12-14 퀄컴 인코포레이티드 각종 증폭 관련 동작을 수행하기 위해 증폭기를 구현 및이용하는 방법 및 장치
US7286009B2 (en) * 2005-12-30 2007-10-23 D2Audio Corporation Digital PWM amplifier with simulation-based feedback
US7576606B2 (en) 2007-07-25 2009-08-18 D2Audio Corporation Digital PWM amplifier having a low delay corrector
US7362254B2 (en) * 2006-01-31 2008-04-22 D2Audio Corporation Systems and methods for minimizing delay in a control path
KR100710509B1 (ko) * 2006-04-11 2007-04-25 남상욱 펄스면적변조를 이용한 고효율 선형 전력증폭기 시스템
US20080000431A1 (en) * 2006-06-29 2008-01-03 Stephen Longo Dog leash assembly
US10296895B2 (en) 2010-01-08 2019-05-21 Blackhawk Network, Inc. System for processing, activating and redeeming value added prepaid cards
US7612608B2 (en) * 2006-08-16 2009-11-03 Intrinsix Corporation Sigma-delta based Class D audio or servo amplifier with load noise shaping
US7605653B2 (en) * 2006-08-16 2009-10-20 Intrinsix Corporation Sigma-delta based class D audio power amplifier with high power efficiency
CN101136616B (zh) * 2006-08-30 2010-12-01 凌浩科技股份有限公司 西格玛-德尔塔型功率放大器及其调变方法
KR100796319B1 (ko) * 2006-10-02 2008-01-21 엘리트 세미컨덕터 메모리 테크놀로지 인코퍼레이티드 하프 스윙 펄스폭 변조를 이용한 ｄ급 오디오 증폭기
DE102006055577B4 (de) * 2006-11-21 2014-03-20 Ihp Gmbh - Innovations For High Performance Microelectronics / Leibniz-Institut Für Innovative Mikroelektronik Sigma-Delta-Modulator mit Rückkopplung für Leistungsverstärker
KR100855685B1 (ko) 2007-04-02 2008-09-03 주식회사 디엠비테크놀로지 다이렉트 디지털 ｄ급 증폭기를 이용한 오디오 시스템
US7728658B2 (en) 2007-07-25 2010-06-01 D2Audio Corporation Low-noise, low-distortion digital PWM amplifier
KR101008930B1 (ko) * 2008-10-09 2011-01-17 박혜은 밤 껍질 탈피 장치
KR20110036371A (ko) 2009-10-01 2011-04-07 삼성전자주식회사 오디오 증폭기
CA2786264A1 (en) 2010-01-08 2011-07-14 Blackhawk Network, Inc. A system for processing, activating and redeeming value added prepaid cards
US10037526B2 (en) 2010-01-08 2018-07-31 Blackhawk Network, Inc. System for payment via electronic wallet
CA2809822C (en) 2010-08-27 2023-09-12 Blackhawk Network, Inc. Prepaid card with savings feature
US8553909B2 (en) 2011-04-29 2013-10-08 Smsc Holdings S.A.R.L. Low-power class D amplifier using multistate analog feedback loops
US11042870B2 (en) 2012-04-04 2021-06-22 Blackhawk Network, Inc. System and method for using intelligent codes to add a stored-value card to an electronic wallet
EP2923325A4 (en) 2012-11-20 2016-08-17 Blackhawk Network Inc SYSTEM AND METHOD FOR USING INTELLIGENT CODES IN CONNECTION WITH MEMORY VALUE CARDS
US10790790B2 (en) * 2017-01-17 2020-09-29 Kapik Inc. Amplifiers with delta-sigma modulators using pulse-density modulations and related processes
US11955935B2 (en) * 2019-08-27 2024-04-09 Panasonic Intellectual Property Management Co., Ltd. Signal processing device and adjusting method

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US5815102A (en) * 1996-06-12 1998-09-29 Audiologic, Incorporated Delta sigma pwm dac to reduce switching
US6084450A (en) * 1997-01-14 2000-07-04 The Regents Of The University Of California PWM controller with one cycle response
US5949282A (en) * 1998-02-25 1999-09-07 National Semiconductor Corporation Class D amplifier no low pass filter feedback with zero phase delay
US6587670B1 (en) * 1998-12-22 2003-07-01 Harris Corporation Dual mode class D amplifiers
US6373334B1 (en) * 2000-06-12 2002-04-16 Cirrus Logic, Inc. Real time correction of a digital PWM amplifier
US6466087B2 (en) * 2000-12-28 2002-10-15 Nokia Mobile Phones, Ltd. Method and apparatus providing digital error correction for a class D power stage
US6381154B1 (en) * 2001-03-16 2002-04-30 Tranh To Nguyen PWM nonlinear controller with a single cycle response and a non resettable integrator

Also Published As

Publication number Publication date
JP2004274712A (ja) 2004-09-30
KR20040030377A (ko) 2004-04-09
ATE408929T1 (de) 2008-10-15
EP1406381B1 (en) 2008-09-17
DE60228962D1 (de) 2008-10-30
EP1406381A1 (en) 2004-04-07
US20040066228A1 (en) 2004-04-08
US6759899B2 (en) 2004-07-06

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