CN102844982B - 单电源d类放大器 - Google Patents

单电源d类放大器 Download PDF

Info

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
Authority
CN
China
Prior art keywords
coupled
node
switch
comparator
mode
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.)
Active
Application number
CN201080065931.XA
Other languages
English (en)
Chinese (zh)
Other versions
CN102844982A (zh
Inventor
B·E·富瑞特
D·J·白德文
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments 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 Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of CN102844982A publication Critical patent/CN102844982A/zh
Application granted granted Critical
Publication of CN102844982B publication Critical patent/CN102844982B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 (enExample)
JP (1) JP5858981B2 (enExample)
CN (1) CN102844982B (enExample)
WO (1) WO2011126527A1 (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9515617B2 (en) 2010-10-27 2016-12-06 Merus Audio Aps Audio amplifier using multi-level pulse width modulation
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
JP6336504B2 (ja) * 2015-03-31 2018-06-06 スカイワークス ソリューションズ, インコーポレイテッドSkyworks Solutions, Inc. 多重帯域電力増幅器
US11684950B2 (en) 2020-08-13 2023-06-27 Cirrus Logic, Inc. Driver circuitry and operation
US11606642B2 (en) 2020-08-13 2023-03-14 Cirrus Logic, Inc. Driver circuits
US11277129B2 (en) 2020-08-13 2022-03-15 Cirrus Logic, Inc. Driver circuitry and operation
US11990896B2 (en) 2020-08-13 2024-05-21 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

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN1805274A (zh) * 2005-01-12 2006-07-19 Qsc音频产品公司 带有稳压电源的多通道、多功率d类放大器
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
CN101443999B (zh) * 2006-05-15 2012-07-25 旭化成电子材料元件株式会社 驱动装置、驱动方法及信息设备
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
WO2009142718A2 (en) * 2008-05-21 2009-11-26 Silicon Laboratories Inc. Predictive feedback compensation for pwm switching amplifiers
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
US8008969B1 (en) 2011-08-30
JP5858981B2 (ja) 2016-02-10
CN102844982A (zh) 2012-12-26
WO2011126527A1 (en) 2011-10-13

Similar Documents

Publication Publication Date Title
CN102844982B (zh) 单电源d类放大器
US10284090B2 (en) Combined boost converter and power converter
US10848061B2 (en) Switching power converter
US7714661B2 (en) Single supply direct drive amplifier
US8638170B2 (en) Single supply headphone driver/charge pump combination
TWI356583B (en) Audio power amplifier
CN102204086B (zh) 耳机放大器电路及其供电方法、和便携式电子设备
CN107070423B (zh) 用于实现d类放大器的高输出信号摆幅的方法及设备
TWI382654B (zh) 驅動放大電路與其驅動方法
US8330541B2 (en) Multilevel class-D amplifier
CN107623495A (zh) 低噪声电路
CN102611398A (zh) 具有开关式电荷泵单元的半导体集成电路及其操作方法
US10659887B2 (en) High efficiency transducer driver
CN101385238B (zh) D类放大器及其方法
US20080129370A1 (en) Control circuit and method for a switching amplifier
CN111211749B (zh) 功率放大装置以及音频装置
CN106059507A (zh) D类放大器和抑制d类放大器噪声的方法
CN101771401B (zh) 振荡器电路
WO2014132953A1 (ja) Ｄ級アンプおよび電子機器
CN202535324U (zh) 开关电路
Hänsler et al. Design Considerations for a Digital Input MEMS Speaker Audio Amplifier with Energy Recovery
CN113141163B (zh) D类功率放大器电路
CN209881739U (zh) 一种在调制级减小相位失真的pwm功率放大器
CN102006021A (zh) 变频d类放大器及控制方法,与应用锯齿波产生器及方法
JP3619491B2 (ja) 超音波診断装置の送信回路

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant