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MX2008001325A - Metodo y aparato para llevar a cabo conmutacion baja en un amplificador de clase d. - Google Patents

Metodo y aparato para llevar a cabo conmutacion baja en un amplificador de clase d.

Info

Publication number
MX2008001325A
MX2008001325A MX2008001325A MX2008001325A MX2008001325A MX 2008001325 A MX2008001325 A MX 2008001325A MX 2008001325 A MX2008001325 A MX 2008001325A MX 2008001325 A MX2008001325 A MX 2008001325A MX 2008001325 A MX2008001325 A MX 2008001325A
Authority
MX
Mexico
Prior art keywords
ripple
output
class
amplifier
switching
Prior art date
Application number
MX2008001325A
Other languages
English (en)
Inventor
Eric Mendenhall
Original Assignee
Rgb Systems 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 Rgb Systems Inc filed Critical Rgb Systems Inc
Publication of MX2008001325A publication Critical patent/MX2008001325A/es

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
    • 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
    • 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
    • H03F2200/459—Ripple reduction circuitry being used in an amplifying circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Electronic Switches (AREA)

Abstract

Las perdidas de conmutacion de amplificadores de clase D se reducen al evaluar el inductor de salida para proporcionar una amplitud de ondulacion mayor que la magnitud de la corriente de carga. La amplitud de ondulacion mayor resulta en este caso en corriente de inductor negativa en carga. La conmutacion en este caso de corriente de inductor negativa reduce al minimo la energia disipada. Un circuito de inductor acoplado se adiciona para conducir la ondulacion lejos del condensador de salida.
MX2008001325A 2005-07-28 2006-07-28 Metodo y aparato para llevar a cabo conmutacion baja en un amplificador de clase d. MX2008001325A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70424105P 2005-07-28 2005-07-28
PCT/US2006/029595 WO2007016428A2 (en) 2005-07-28 2006-07-28 Method and apparatus for implementing soft switching in a class d amplifier

Publications (1)

Publication Number Publication Date
MX2008001325A true MX2008001325A (es) 2008-03-18

Family

ID=37709246

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2008001325A MX2008001325A (es) 2005-07-28 2006-07-28 Metodo y aparato para llevar a cabo conmutacion baja en un amplificador de clase d.

Country Status (6)

Country Link
EP (1) EP1913688B1 (es)
JP (1) JP2009507403A (es)
CN (1) CN101385237B (es)
CA (1) CA2616220A1 (es)
MX (1) MX2008001325A (es)
WO (1) WO2007016428A2 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010213114A (ja) * 2009-03-11 2010-09-24 Yamaha Corp Ｄ級増幅回路
CN101714853B (zh) * 2009-11-20 2012-12-12 恩平市西特尔电子科技有限公司 一种双极性软开关pwm功率放大器
FR3055173B1 (fr) * 2016-08-22 2019-08-16 Devialet Dispositif d'amplification comprenant un circuit de compensation
EP3821532B1 (en) 2018-07-10 2025-08-27 Bose Corporation Self-boosting amplifier
JP7283151B2 (ja) * 2019-03-18 2023-05-30 日本電気株式会社 電力増幅器
IT202000015232A1 (it) * 2020-06-24 2021-12-24 St Microelectronics Srl Convertitore a commutazione
JP7710787B2 (ja) * 2021-06-02 2025-07-22 日本無線株式会社 電力増幅器および物標探知装置
US12034420B2 (en) * 2021-09-30 2024-07-09 Texas Instruments Incorporated Switching amplifier having linear transition totem pole modulation

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571551A (en) * 1984-02-28 1986-02-18 Washington Innovative Technology, Inc. Flyback modulated switching power amplifier
JP2784783B2 (ja) * 1989-01-31 1998-08-06 ソニー株式会社 フイルタ回路
IT1291783B1 (it) * 1997-02-21 1999-01-21 Claudio Lastrucci Un filtro di ricostruzione per l'eliminazione del residuo di commutazione in un sistema a commutazione o simile
IT1291341B1 (it) * 1997-05-09 1999-01-07 Elettronica 97 Di Ing Giovanni Dispositivo di riduzione della componente di ripple del segnale alimentato ad un carico da un amplificatore di potenza switching
US5963086A (en) * 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
US6232833B1 (en) * 1998-11-18 2001-05-15 Intersil Corporation Low noise low distortion class D amplifier
EP1014397A1 (en) * 1998-12-15 2000-06-28 Alcatel High leakage inductor for a switched power converter
US6304137B1 (en) * 1999-12-23 2001-10-16 Red Chip Company Limited Output stage for high power class D amplifiers
US6462962B1 (en) * 2000-09-08 2002-10-08 Slobodan Cuk Lossless switching DC-to-DC converter
US6639815B1 (en) * 2002-05-04 2003-10-28 Jeff Gucyski Precision switching power amplifier comprising instantaneously interruptible power source
JP2004297551A (ja) * 2003-03-27 2004-10-21 Tdk Corp ノイズフィルタ装置及びスイッチング電源装置
JP4415371B2 (ja) * 2003-08-05 2010-02-17 横河電機株式会社 スイッチング電源
JP4067475B2 (ja) * 2003-08-21 2008-03-26 シャープ株式会社 信号増幅出力装置
CN1322659C (zh) * 2004-07-16 2007-06-20 中国科学院上海光学精密机械研究所 低功率半导体激光器驱动电源

Also Published As

Publication number Publication date
EP1913688A2 (en) 2008-04-23
CN101385237B (zh) 2012-12-12
HK1126901A1 (en) 2009-09-11
EP1913688B1 (en) 2015-09-09
EP1913688A4 (en) 2009-12-16
WO2007016428A2 (en) 2007-02-08
WO2007016428A3 (en) 2007-04-26
JP2009507403A (ja) 2009-02-19
CN101385237A (zh) 2009-03-11
CA2616220A1 (en) 2007-02-08

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