ATE548797T1 - Vorrichtung und verfahren zur steuerung einer gleichtaktspannung von schaltverstärkern - Google Patents

Vorrichtung und verfahren zur steuerung einer gleichtaktspannung von schaltverstärkern

Info

Publication number
ATE548797T1
ATE548797T1 AT07862006T AT07862006T ATE548797T1 AT E548797 T1 ATE548797 T1 AT E548797T1 AT 07862006 T AT07862006 T AT 07862006T AT 07862006 T AT07862006 T AT 07862006T AT E548797 T1 ATE548797 T1 AT E548797T1
Authority
AT
Austria
Prior art keywords
common
error
signal
control signals
mode voltage
Prior art date
Application number
AT07862006T
Other languages
English (en)
Inventor
Atsushi Matamura
Original Assignee
Analog Devices 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 Analog Devices Inc filed Critical Analog Devices Inc
Application granted granted Critical
Publication of ATE548797T1 publication Critical patent/ATE548797T1/de

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
    • H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AT07862006T 2006-11-15 2007-11-14 Vorrichtung und verfahren zur steuerung einer gleichtaktspannung von schaltverstärkern ATE548797T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/599,840 US7772924B2 (en) 2006-11-15 2006-11-15 Apparatus and method for controlling a common-mode voltage of switching amplifiers
PCT/US2007/023893 WO2008060556A2 (en) 2006-11-15 2007-11-14 Apparatus and method for controlling a common-mode voltage of switching amplifiers

Publications (1)

Publication Number Publication Date
ATE548797T1 true ATE548797T1 (de) 2012-03-15

Family

ID=39368653

Family Applications (1)

Application Number Title Priority Date Filing Date
AT07862006T ATE548797T1 (de) 2006-11-15 2007-11-14 Vorrichtung und verfahren zur steuerung einer gleichtaktspannung von schaltverstärkern

Country Status (5)

Country Link
US (2) US7772924B2 (de)
EP (1) EP2089967B1 (de)
CN (1) CN101573865B (de)
AT (1) ATE548797T1 (de)
WO (1) WO2008060556A2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7772924B2 (en) * 2006-11-15 2010-08-10 Analog Devices, Inc. Apparatus and method for controlling a common-mode voltage of switching amplifiers
US7969242B2 (en) * 2008-07-24 2011-06-28 Qualcomm Incorporated Switching power amplifier for quantized signals
RU2562935C2 (ru) * 2010-06-17 2015-09-10 Конинклейке Филипс Электроникс Н.В. Источник питания градиентной катушки и система магнитно-резонансной визуализации
US8854132B2 (en) * 2011-11-11 2014-10-07 Wolfson Microelectronics Plc Amplifier circuit
US8456337B1 (en) * 2012-04-10 2013-06-04 Freescale Semiconductor, Inc. System to interface analog-to-digital converters to inputs with arbitrary common-modes
JP6422278B2 (ja) 2014-09-19 2018-11-14 ルネサスエレクトロニクス株式会社 電力制御回路
US9473851B2 (en) * 2014-12-22 2016-10-18 Qualcomm Incorporated Speaker protection circuit with improved accuracy
US9742366B2 (en) * 2015-07-14 2017-08-22 Qualcomm Incorporated Differential class-D amplifier
US10027294B2 (en) * 2015-09-11 2018-07-17 Mediatek Inc. Class-D amplifier with pulse-width modulation common-mode control and associated method for performing class-D amplification
US10338613B2 (en) * 2016-03-02 2019-07-02 Triune Systems, L.L.C. Circuits and methods for providing power and data communication in isolated system architectures
CN106712606A (zh) * 2016-11-29 2017-05-24 株洲麦格米特电气有限责任公司 一种送丝机调速系统的控制方法
US10396779B2 (en) * 2017-05-31 2019-08-27 Texas Instruments Incorporated Ground switching for speaker current sense
CN113615089B (zh) * 2019-03-22 2025-08-15 索尤若驱动有限及两合公司 用于转换差分输入信号的开关装置和具有开关装置的系统
WO2021058623A1 (en) * 2019-09-24 2021-04-01 Analog Devices International Unlimited Company Method and apparatus for setting a stable operating point and emi control of a h-bridge output stage
US11374542B2 (en) * 2020-02-24 2022-06-28 Qualcomm Incorporated Enhancing speaker protection accuracy
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
US11684950B2 (en) 2020-08-13 2023-06-27 Cirrus Logic, Inc. Driver circuitry and operation
CN116539949A (zh) * 2023-07-04 2023-08-04 杰华特微电子股份有限公司 H桥电路的电流检测装置、检测方法及开关电路

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5343382A (en) * 1993-04-05 1994-08-30 Delco Electronics Corp. Adaptive current control
US5410592A (en) * 1993-06-04 1995-04-25 Harris Corporation Class `D` audio speaker amplifier circuit with state variable feedback control
JP3988065B2 (ja) * 1999-05-18 2007-10-10 株式会社デンソー 直流モータ駆動装置および電動パワーステアリング制御装置
US6735302B1 (en) 1999-05-28 2004-05-11 Broadcom Corporation DSP based SLIC architecture with current-sensing voltage synthesis impedance matching and DC feed control
US6472933B2 (en) * 1999-09-27 2002-10-29 Waytech Investment Co., Ltd. Switching amplifier incorporating return-to-zero quaternary power switch
US6211728B1 (en) * 1999-11-16 2001-04-03 Texas Instruments Incorporated Modulation scheme for filterless switching amplifiers
US6262632B1 (en) * 1999-11-16 2001-07-17 Texas Instruments Incorporated Concept and method to enable filterless, efficient operation of Class-D amplifiers
SE0101720D0 (sv) * 2001-05-16 2001-05-16 Bang & Olufsen Powerhouse As Apparatus for electric to acoustic conversion
US6614297B2 (en) * 2001-07-06 2003-09-02 Texas Instruments Incorporated Modulation scheme for filterless switching amplifiers with reduced EMI
US6472993B1 (en) * 2001-10-16 2002-10-29 Pittway Corp. Singular housing window or door intrusion detector using earth magnetic field sensor
US6778009B1 (en) 2002-10-31 2004-08-17 National Semiconductor Corporation High gain and wide bandwidth switched capacitor amplifier having a dynamically loaded amplifier output
US7026866B2 (en) 2003-03-28 2006-04-11 Tripath Technology, Inc. DC offset self-calibration system for a switching amplifier
US7078964B2 (en) * 2003-10-15 2006-07-18 Texas Instruments Incorporated Detection of DC output levels from a class D amplifier
US7262658B2 (en) * 2005-07-29 2007-08-28 Texas Instruments Incorporated Class-D amplifier system
US7339425B2 (en) * 2006-08-03 2008-03-04 Elite Semiconductor Memory Technology, Inc. Class-D audio amplifier with half-swing pulse-width-modulation
US7772924B2 (en) 2006-11-15 2010-08-10 Analog Devices, Inc. Apparatus and method for controlling a common-mode voltage of switching amplifiers

Also Published As

Publication number Publication date
US20080111619A1 (en) 2008-05-15
CN101573865B (zh) 2013-10-30
EP2089967A2 (de) 2009-08-19
US8416016B2 (en) 2013-04-09
US20100253396A1 (en) 2010-10-07
EP2089967B1 (de) 2012-03-07
US7772924B2 (en) 2010-08-10
WO2008060556A2 (en) 2008-05-22
CN101573865A (zh) 2009-11-04
WO2008060556A3 (en) 2008-08-21

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