DE60213659D1 - Zeitlich gemultiplexter pwm-verstärker - Google Patents

Zeitlich gemultiplexter pwm-verstärker

Info

Publication number
DE60213659D1
DE60213659D1 DE60213659T DE60213659T DE60213659D1 DE 60213659 D1 DE60213659 D1 DE 60213659D1 DE 60213659 T DE60213659 T DE 60213659T DE 60213659 T DE60213659 T DE 60213659T DE 60213659 D1 DE60213659 D1 DE 60213659D1
Authority
DE
Germany
Prior art keywords
channel
common conductor
signal
pwm amplifier
common
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
DE60213659T
Other languages
English (en)
Other versions
DE60213659T2 (de
Inventor
S Danielson
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.)
Apogee Technology Inc
Original Assignee
Apogee Technology Inc
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 Apogee Technology Inc filed Critical Apogee Technology Inc
Application granted granted Critical
Publication of DE60213659D1 publication Critical patent/DE60213659D1/de
Publication of DE60213659T2 publication Critical patent/DE60213659T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
    • 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
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3264—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers
    • 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
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
DE60213659T 2001-11-12 2002-10-11 Zeitlich gemultiplexter pwm-verstärker Expired - Fee Related DE60213659T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/054,144 US6552607B1 (en) 2001-11-12 2001-11-12 Time division multiplexed PWM amplifier
US54144 2001-11-12
PCT/US2002/032515 WO2003043184A1 (en) 2001-11-12 2002-10-11 Time division multiplexed pwm amplifier

Publications (2)

Publication Number Publication Date
DE60213659D1 true DE60213659D1 (de) 2006-09-14
DE60213659T2 DE60213659T2 (de) 2007-07-26

Family

ID=21989039

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60213659T Expired - Fee Related DE60213659T2 (de) 2001-11-12 2002-10-11 Zeitlich gemultiplexter pwm-verstärker

Country Status (6)

Country Link
US (1) US6552607B1 (de)
EP (1) EP1456942B1 (de)
JP (2) JP4185456B2 (de)
AT (1) ATE335303T1 (de)
DE (1) DE60213659T2 (de)
WO (1) WO2003043184A1 (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006520159A (ja) * 2003-03-10 2006-08-31 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ ３状態ｄ級増幅器
US7145300B2 (en) * 2003-05-05 2006-12-05 International Rectifier Corporation Multi-axis AC servo control system and method
EP1487100A1 (de) * 2003-06-09 2004-12-15 STMicroelectronics S.r.l. Mehrkanal-Leistungsverstärker mit kanalunabhängigem selbstkonfigurierendem Ausgang in Eintaktanordnung oder in Brückenanordnung, insbesondere für Audioanwendungen
EP1496611A1 (de) * 2003-07-09 2005-01-12 STMicroelectronics S.r.l. Selbstkonfigurierender Mehrkanal-Leistungsverstärker in Eintaktanordnung oder in Brückenanordnung, insbesondere für Audioanwendungen
US7298209B1 (en) 2003-11-06 2007-11-20 Marvell World Trade Ltd. Class D amplifier
US7190224B2 (en) 2003-11-06 2007-03-13 Marvell World Trade Ltd. Class D amplifier
WO2005101650A1 (en) * 2004-04-14 2005-10-27 Gpe International Ltd. Digital amplifier and methods for enhancing resolution and dynamic range of a digital amplifier
ATE387750T1 (de) * 2004-05-28 2008-03-15 Tc Electronic As Impulsbreitenmodulatorsystem
DE102004037856B4 (de) * 2004-08-04 2006-05-04 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Sprachkonferenzvorrichtung, Sprachkonferenzsystem und Verfahren zur Realisierung einer Sprachkonferenz
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
JP2007166190A (ja) * 2005-12-13 2007-06-28 Matsushita Electric Ind Co Ltd Ｄ級アンプ
US8081785B2 (en) * 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation High efficiency converter providing switching amplifier bias
US8081777B2 (en) * 2006-03-21 2011-12-20 Fairchild Semiconductor Corporation Volume-based adaptive biasing
KR100626987B1 (ko) * 2006-06-19 2006-09-22 (주)유비아이사운드 헤드폰 드라이버 및 헤드폰 드라이버 구동방법
US7391346B1 (en) 2007-02-05 2008-06-24 Sigmatel, Inc. Switching amplifier system and method
JP4865667B2 (ja) * 2007-10-09 2012-02-01 旭化成エレクトロニクス株式会社 スピーカ用駆動装置及びスイッチングアンプ
WO2009063277A1 (en) * 2007-11-16 2009-05-22 Freescale Semiconductor, Inc. Amplifier circuit audio circuit and electronic device
US7701307B2 (en) * 2008-04-01 2010-04-20 Silicon Laboratories, Inc. System and method of changing a PWM power spectrum
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
US7986102B2 (en) * 2008-09-12 2011-07-26 General Electric Company Adjustable color solid state lighting
US8130128B2 (en) 2010-03-30 2012-03-06 Silicon Laboratores Inc. System and method for generating shaped noise
EP2393202B1 (de) * 2010-06-02 2014-10-15 Dialog Semiconductor B.V. Dreiweg-Audiotreiber und Verfahren zur Herstellung eines Dreiweg-Audioantriebssignals
JP5507698B2 (ja) 2010-09-24 2014-05-28 日本曹達株式会社 末端アクリル変性ポリブタジエン又は末端アクリル変性水素添加ポリブタジエンの製造方法及びそれらを含有する組成物
US10146732B2 (en) * 2013-01-22 2018-12-04 Apple Inc. Time-division multiplexed data bus interface
US10587232B2 (en) 2018-05-17 2020-03-10 Cirrus Logic, Inc. Class D amplifiers
CN110545082B (zh) * 2018-05-28 2023-06-16 晶豪科技股份有限公司 音频放大器的调制选择电路

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119883A (en) * 1980-02-26 1981-09-19 Citizen Watch Co Ltd Sound timepiece
JPS5936422A (ja) * 1982-08-24 1984-02-28 Sanyo Electric Co Ltd スピ−カ駆動用ｄ／ａ変換器
JPS59107699A (ja) * 1982-12-13 1984-06-21 Toshiba Corp ステレオ再生装置
DE3416494A1 (de) * 1984-05-04 1985-11-07 Standard Elektrik Lorenz Ag, 7000 Stuttgart Wiedergabeanordnung fuer tonsignale
IT1241387B (it) * 1990-12-28 1994-01-10 Sgs Thomson Microelectronics Stadio amplificatore del tipo a doppio ponte per due segnali di ingresso, in particolare per applicazioni stereo
EP0613242B1 (de) * 1993-02-24 1997-10-29 STMicroelectronics S.r.l. Selbstkonfigurierbarer Doppelbrückenverstärker
US5382915A (en) * 1993-07-06 1995-01-17 Motorola, Inc. Pulsewidth-modulated amplifier having analog mode
EP0706260B1 (de) * 1994-10-07 2002-01-16 STMicroelectronics S.r.l. Brückenverstärker mit hohem Wirkungsgrad
DE19525411A1 (de) * 1995-07-12 1997-01-16 Philips Patentverwaltung Signalverstärker
GB2310577A (en) * 1996-02-24 1997-08-27 Ford Motor Co Automatic switching amplifier
JP2002532933A (ja) * 1998-12-08 2002-10-02 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 信号を増幅する装置
US6294957B1 (en) * 2000-01-21 2001-09-25 Harris Corporation RF power amplifier having synchronous RF drive
JP2001244756A (ja) * 2000-03-01 2001-09-07 Nippon Columbia Co Ltd 電力増幅器

Also Published As

Publication number Publication date
EP1456942A4 (de) 2005-07-27
DE60213659T2 (de) 2007-07-26
JP5032386B2 (ja) 2012-09-26
US6552607B1 (en) 2003-04-22
ATE335303T1 (de) 2006-08-15
JP2008187747A (ja) 2008-08-14
WO2003043184A1 (en) 2003-05-22
EP1456942A1 (de) 2004-09-15
EP1456942B1 (de) 2006-08-02
JP4185456B2 (ja) 2008-11-26
JP2005510107A (ja) 2005-04-14

Similar Documents

Publication Publication Date Title
DE60213659D1 (de) Zeitlich gemultiplexter pwm-verstärker
WO2004059848A3 (en) Modulation of a digital input signal using a digital signal modulator and signal splitting
TW240300B (en) Apparatus and method for integrating bus master ownership of local bus load by plural data transceivers
ATE264569T1 (de) Pegelverschiebungsschaltung
ATE279811T1 (de) Pulzreferiertes steuerverfahren für verbesserte leistungsverstärkung eines pulsmodulierten signals
WO2002086678A3 (en) Power management system and method
ATE435536T1 (de) Sende- und empfangssysteme und zugehörige verfahren für serielle hochgeschwindigkeitsdaten
AU2003295568A1 (en) Digital signal to pulse converter
TW200605015A (en) Gate driving portion and display device having the same
CA2273151A1 (en) Efficient parallel-stage power amplifier
CA2402704A1 (en) System and method of producing direct audio from a power supply
ATE75355T1 (de) Optischer empfaenger.
BR9815314A (pt) Transdutor para transformação de séries de dados sintáticos
ATE250823T1 (de) Aufwärtswandlerverstärker in brückenschaltung
SE9902629L (sv) Balunkrets
ATE105982T1 (de) Verteilter symmetrischer verstärker.
DE60013139D1 (de) System zur signalübertragung über stromversorgungsleitungen
DE60002757D1 (de) Leistungsverstärker
DE69011919D1 (de) Ausgangsstufe für einen Operationsverstärker.
ATE386546T1 (de) Stabilisierte ölige zubereitung von tobicillin (beta-lactam-antibiotika)
TW429673B (en) Differential amplifying circuit and load driving circuit
ATE527749T1 (de) Frequenzumsetzer unter verwendung von unterdrückung der trägerselbstmischung
DE3886622D1 (de) Integrierte komplementäre Gegentakt-B-Endstufe.
NO924363D0 (no) Stabilisert telefoni-kombinator
DE69303063D1 (de) Gegentaktausgangsstufe für integrierten Verstärker

Legal Events

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