CN102844982B - 单电源d类放大器 - Google Patents

单电源d类放大器 Download PDF

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Publication number
CN102844982B
CN102844982B CN201080065931.XA CN201080065931A CN102844982B CN 102844982 B CN102844982 B CN 102844982B CN 201080065931 A CN201080065931 A CN 201080065931A CN 102844982 B CN102844982 B CN 102844982B
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CN
China
Prior art keywords
coupled
node
switch
comparator
mode
Prior art date
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Active
Application number
CN201080065931.XA
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English (en)
Chinese (zh)
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CN102844982A (zh
Inventor
B·E·富瑞特
D·J·白德文
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Texas Instruments Inc
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Texas Instruments Inc
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Publication date
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Publication of CN102844982A publication Critical patent/CN102844982A/zh
Application granted granted Critical
Publication of CN102844982B publication Critical patent/CN102844982B/zh
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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/005—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements using switched capacitors, e.g. dynamic amplifiers; using switched capacitors as resistors in differential 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/45—Differential amplifiers
    • H03F3/45071—Differential amplifiers with semiconductor devices only
    • H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
    • H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/408—Indexing scheme relating to amplifiers the output amplifying stage of an amplifier comprising three power stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45512—Indexing scheme relating to differential amplifiers the FBC comprising one or more capacitors, not being switched capacitors, and being coupled between the LC and the IC
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45528—Indexing scheme relating to differential amplifiers the FBC comprising one or more passive resistors and being coupled between the LC and the IC
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45544—Indexing scheme relating to differential amplifiers the IC comprising one or more capacitors, e.g. coupling capacitors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
    • H03F2203/45—Indexing scheme relating to differential amplifiers
    • H03F2203/45594—Indexing scheme relating to differential amplifiers the IC comprising one or more resistors, which are not biasing resistor

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
CN201080065931.XA 2010-03-30 2010-12-21 单电源d类放大器 Active CN102844982B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12/750,494 US8008969B1 (en) 2010-03-30 2010-03-30 Single supply class-D amplifier
US12/750,494 2010-03-30
PCT/US2010/061522 WO2011126527A1 (en) 2010-03-30 2010-12-21 Single supply class-d amplifier

Publications (2)

Publication Number Publication Date
CN102844982A CN102844982A (zh) 2012-12-26
CN102844982B true CN102844982B (zh) 2016-02-24

Family

ID=44486277

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201080065931.XA Active CN102844982B (zh) 2010-03-30 2010-12-21 单电源d类放大器

Country Status (4)

Country Link
US (1) US8008969B1 (https=)
JP (1) JP5858981B2 (https=)
CN (1) CN102844982B (https=)
WO (1) WO2011126527A1 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103329431B (zh) 2010-10-27 2016-09-14 梅鲁斯音频有限公司 使用多电平脉冲宽度调制的音频放大器
CN104348427B (zh) * 2013-07-29 2017-11-24 安凯(广州)微电子技术有限公司 一种d类音频功放电路、功率放大器及音频播放装置
US9654068B2 (en) * 2015-03-13 2017-05-16 Elite Semiconductor Memory Technology Inc. Quaternary/ternary modulation selecting circuit and associated method
US9882587B2 (en) * 2015-03-31 2018-01-30 Skyworks Solutions, Inc. Multi-band power amplifier
US11606642B2 (en) 2020-08-13 2023-03-14 Cirrus Logic, Inc. Driver circuits
US11684950B2 (en) 2020-08-13 2023-06-27 Cirrus Logic, Inc. Driver circuitry and operation
US11990896B2 (en) 2020-08-13 2024-05-21 Cirrus Logic Inc. Driver circuitry and operation
US11277129B2 (en) 2020-08-13 2022-03-15 Cirrus Logic, Inc. Driver circuitry and operation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200976571Y (zh) * 2006-12-04 2007-11-14 普诚科技股份有限公司 以单电源来推动的音讯放大器
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
CN101213739A (zh) * 2007-05-09 2008-07-02 埃派克森微电子有限公司 开关放大器及其调制方法
US20100007387A1 (en) * 2008-07-14 2010-01-14 Elite Semiconductor Memory Technology Inc. Triangular wave generating circuit having synchronization with external clock

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US5963086A (en) * 1997-08-08 1999-10-05 Velodyne Acoustics, Inc. Class D amplifier with switching control
US6753729B2 (en) 2000-01-06 2004-06-22 Mitek Corporation Self-oscillating variable frequency closed loop Class D amplifier
US6320460B1 (en) 2000-05-30 2001-11-20 Ivan Meszlenyi Class D amplifier
US7279964B2 (en) * 2003-07-30 2007-10-09 Siemens Aktiengesellschaft Drive circuit, device, and method for suppressing noise, and use
US7279967B2 (en) * 2005-01-12 2007-10-09 Qsc Audio Products, Inc. Multi-channel, multi-power class D amplifier with regulated power supply
JP4791740B2 (ja) 2005-03-14 2011-10-12 旭化成エレクトロニクス株式会社 デジタルスイッチングアンプ
US7400191B2 (en) 2006-04-07 2008-07-15 Manuel De Jesus Rodriguez Switching power amplifier
CN101443998B (zh) * 2006-05-15 2011-05-04 旭化成电子材料元件株式会社 驱动装置
US7339425B2 (en) * 2006-08-03 2008-03-04 Elite Semiconductor Memory Technology, Inc. Class-D audio amplifier with half-swing pulse-width-modulation
JP2008048305A (ja) * 2006-08-21 2008-02-28 Elite Semiconductor Memory Technology Inc ハーフスイングパルス幅変調を備えたｄ級音響増幅器
US7518442B1 (en) * 2006-10-10 2009-04-14 National Semiconductor Corporation Circuit and method for suppressing switching and supply-related errors in a PWM power stage by instantaneous per-pulse feedback
US7551028B1 (en) * 2006-12-11 2009-06-23 Marvell International Ltd. Signal generators for current-mode three-level digital amplifiers
US7633336B2 (en) * 2007-08-24 2009-12-15 Texas Instruments Incorporated Audio amplifier and methods of generating audio signals
DE112009001227T5 (de) * 2008-05-21 2011-04-07 Silicon Laboratories, Inc., Austin Prädiktive Rückkopplungskompensation für PWM-Schaltverstärker
JP2010213114A (ja) * 2009-03-11 2010-09-24 Yamaha Corp Ｄ級増幅回路

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN200976571Y (zh) * 2006-12-04 2007-11-14 普诚科技股份有限公司 以单电源来推动的音讯放大器
CN101213739A (zh) * 2007-05-09 2008-07-02 埃派克森微电子有限公司 开关放大器及其调制方法
US20100007387A1 (en) * 2008-07-14 2010-01-14 Elite Semiconductor Memory Technology Inc. Triangular wave generating circuit having synchronization with external clock

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
《2.5W低噪声CMOS D类音频功放设计》;黄武康 等;《固体电子学研究与进展》;20100331;第30卷(第1期);第108-113页、第154页 *

Also Published As

Publication number Publication date
JP2013524624A (ja) 2013-06-17
CN102844982A (zh) 2012-12-26
JP5858981B2 (ja) 2016-02-10
WO2011126527A1 (en) 2011-10-13
US8008969B1 (en) 2011-08-30

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