CN104584424A - 用于音频放大器和稳压电源的脉冲发生电路 - Google Patents

用于音频放大器和稳压电源的脉冲发生电路 Download PDF

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Publication number
CN104584424A
CN104584424A CN201380022922.6A CN201380022922A CN104584424A CN 104584424 A CN104584424 A CN 104584424A CN 201380022922 A CN201380022922 A CN 201380022922A CN 104584424 A CN104584424 A CN 104584424A
Authority
CN
China
Prior art keywords
circuit
signal
comparator
lossy integrator
output
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.)
Pending
Application number
CN201380022922.6A
Other languages
English (en)
Chinese (zh)
Inventor
J·哈蒙德
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.)
Indice Semiconductor Inc
Original Assignee
Indice Semiconductor 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
Priority claimed from AU2012901689A external-priority patent/AU2012901689A0/en
Application filed by Indice Semiconductor Inc filed Critical Indice Semiconductor Inc
Publication of CN104584424A publication Critical patent/CN104584424A/zh
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
    • 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
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/02—Shaping pulses by amplifying
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K7/00—Modulating pulses with a continuously-variable modulating signal
    • H03K7/08—Duration or width modulation ; Duty cycle modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H03K9/08—Demodulating pulses which have been modulated with a continuously-variable signal of duration- or width-mudulated pulses or of duty-cycle modulated pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Amplifiers (AREA)
CN201380022922.6A 2012-04-30 2013-04-30 用于音频放大器和稳压电源的脉冲发生电路 Pending CN104584424A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2012901689A AU2012901689A0 (en) 2012-04-30 A circuit
AU2012901689 2012-04-30
PCT/AU2013/000452 WO2013163691A1 (en) 2012-04-30 2013-04-30 Pulse generating circuit for audio-frequency amplifiers and regulated power supplies

Publications (1)

Publication Number Publication Date
CN104584424A true CN104584424A (zh) 2015-04-29

Family

ID=49514108

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201380022922.6A Pending CN104584424A (zh) 2012-04-30 2013-04-30 用于音频放大器和稳压电源的脉冲发生电路

Country Status (6)

Country Link
US (1) US9444439B2 (https=)
EP (1) EP2845315A4 (https=)
JP (1) JP6219371B2 (https=)
CN (1) CN104584424A (https=)
IN (1) IN2014MN02429A (https=)
WO (1) WO2013163691A1 (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3447708B2 (ja) 2001-03-02 2003-09-16 株式会社小島組 土砂撒き船
DE102015007696B3 (de) * 2015-06-18 2016-12-15 Iie Gmbh & Co. Kg Spannungsquelle für modulierte Gleichspannungen
CN119696527A (zh) 2017-11-10 2025-03-25 思睿逻辑国际半导体有限公司 具有多个独立输出级的d类放大器
EP4600650A3 (en) * 2019-04-05 2025-11-26 Earli Inc. Improved methods and compositions for synthetic biomarkers
JP2023102002A (ja) * 2022-01-11 2023-07-24 厚 佐藤 アナログ変調器及びアナログ変調器を用いたスイッチングアンプ
GB2624053B (en) * 2022-11-07 2024-12-11 Cirrus Logic Int Semiconductor Ltd Voltage supply

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022727A1 (en) * 1998-10-15 2000-04-20 Intersil Corporation Variable frequency class d modulator with built in soft clipping and frequency limiting
US6614297B2 (en) * 2001-07-06 2003-09-02 Texas Instruments Incorporated Modulation scheme for filterless switching amplifiers with reduced EMI
CN101150297A (zh) * 2006-09-18 2008-03-26 晶豪科技股份有限公司 半波式脉冲宽度调制式d类音频放大器
CN101485082A (zh) * 2006-07-07 2009-07-15 Nxp股份有限公司 D类音频放大器

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US5828705A (en) * 1996-02-01 1998-10-27 Kroeger; Brian W. Carrier tracking technique and apparatus having automatic flywheel/tracking/reacquisition control and extended signal to noise ratio
US5838515A (en) * 1996-04-30 1998-11-17 Quantum Corporation PWM/linear driver for disk drive voice coil actuator
US6316992B1 (en) * 1999-07-29 2001-11-13 Tripath Technology, Inc. DC offset calibration for a digital switching amplifier
JP3941443B2 (ja) * 2001-09-27 2007-07-04 ヤマハ株式会社 自走式ｐｗｍ増幅器
US20030214274A1 (en) * 2002-05-14 2003-11-20 Lethellier Patrice R. Multiple-phase power converter having current sharing and high frequency filtering
WO2004049569A1 (en) * 2002-11-22 2004-06-10 Koninklijke Philips Electronics N.V. Pwm generator
US7443105B2 (en) * 2006-06-15 2008-10-28 American Electric Cord, Inc. Ballast circuit for gas discharge lamps
US7492219B1 (en) * 2006-08-10 2009-02-17 Marvell International Ltd. Power efficient amplifier
JP2009060466A (ja) * 2007-08-31 2009-03-19 Kenwood Corp Ｄ級増幅装置
JP5273056B2 (ja) * 2008-02-14 2013-08-28 日本電気株式会社 電力増幅器
NL1035333C2 (nl) * 2008-04-23 2009-10-26 Hypex Electronics B V Werkwijze en stuurschakeling voor het sturen van pulsbreedtemodulatie.
GB2473625A (en) * 2009-09-17 2011-03-23 Powervation Ltd Adaptive analog compensator for a power supply
JP2012060613A (ja) * 2010-09-13 2012-03-22 Uinzu:Kk 自励型発振回路及びｄ級増幅装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000022727A1 (en) * 1998-10-15 2000-04-20 Intersil Corporation Variable frequency class d modulator with built in soft clipping and frequency limiting
US6614297B2 (en) * 2001-07-06 2003-09-02 Texas Instruments Incorporated Modulation scheme for filterless switching amplifiers with reduced EMI
CN101485082A (zh) * 2006-07-07 2009-07-15 Nxp股份有限公司 D类音频放大器
CN101150297A (zh) * 2006-09-18 2008-03-26 晶豪科技股份有限公司 半波式脉冲宽度调制式d类音频放大器

Also Published As

Publication number Publication date
JP6219371B2 (ja) 2017-10-25
WO2013163691A1 (en) 2013-11-07
IN2014MN02429A (https=) 2015-08-14
JP2015515839A (ja) 2015-05-28
EP2845315A4 (en) 2016-06-22
US9444439B2 (en) 2016-09-13
EP2845315A1 (en) 2015-03-11
US20150145582A1 (en) 2015-05-28

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PB01 Publication
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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150429