CN106330117B - D类音频放大器和声音再现组件 - Google Patents

D类音频放大器和声音再现组件 Download PDF

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Publication number
CN106330117B
CN106330117B CN201610704361.3A CN201610704361A CN106330117B CN 106330117 B CN106330117 B CN 106330117B CN 201610704361 A CN201610704361 A CN 201610704361A CN 106330117 B CN106330117 B CN 106330117B
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CN
China
Prior art keywords
semiconductor switch
control signal
supply voltage
coupled
modulation control
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Chinese (zh)
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CN106330117A (zh
Inventor
米克尔·霍耶尔比
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Cirrus Logic International Semiconductor Ltd
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Infineon Technologies Austria AG
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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
    • H03F3/20—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
    • 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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4837—Flying capacitor converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/0205—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers
    • H03F1/0211—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in transistor amplifiers with control of the supply voltage or current
    • H03F1/0244—Stepped control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H03F3/187—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only in integrated circuits
    • 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
    • H03F3/2178—Class D power amplifiers; Switching amplifiers using more than one switch or switching amplifier in parallel or in series
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback
    • 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
    • H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
    • H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
    • H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
    • H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters
    • 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
    • H03F2200/267—A capacitor based passive circuit, e.g. filter, being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/333—A frequency modulator or demodulator being used in the amplifier circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Amplifiers (AREA)
CN201610704361.3A 2010-10-27 2011-10-27 D类音频放大器和声音再现组件 Active CN106330117B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US40726210P 2010-10-27 2010-10-27
US61/407,262 2010-10-27
CN201180063192.5A CN103329431B (zh) 2010-10-27 2011-10-27 使用多电平脉冲宽度调制的音频放大器

Related Parent Applications (1)

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CN201180063192.5A Division CN103329431B (zh) 2010-10-27 2011-10-27 使用多电平脉冲宽度调制的音频放大器

Publications (2)

Publication Number Publication Date
CN106330117A CN106330117A (zh) 2017-01-11
CN106330117B true CN106330117B (zh) 2019-02-05

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CN201610704361.3A Active CN106330117B (zh) 2010-10-27 2011-10-27 D类音频放大器和声音再现组件
CN201180063192.5A Active CN103329431B (zh) 2010-10-27 2011-10-27 使用多电平脉冲宽度调制的音频放大器

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US (2) US9515617B2 (enExample)
EP (2) EP2633621B1 (enExample)
JP (2) JP5866369B2 (enExample)
KR (2) KR101947597B1 (enExample)
CN (2) CN106330117B (enExample)
DK (2) DK3048724T3 (enExample)
WO (1) WO2012055968A1 (enExample)

Families Citing this family (82)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012116720A1 (en) * 2011-02-28 2012-09-07 Widex A/S Hearing aid with an h-bridge output stage and a method of driving an output stage
KR101871360B1 (ko) * 2011-03-09 2018-06-26 삼성전자주식회사 오디오 신호 출력 방법 및 그에 따른 오디오 신호 출력 장치
US9564948B2 (en) * 2011-11-18 2017-02-07 Nxp B.V. 3-level bridge driver with single supply and low common mode EMI emission
US8982593B2 (en) 2012-04-27 2015-03-17 Rockwell Automation Technologies, Inc. Cascaded H-Bridge (CHB) inverter level shift PWM with rotation
EP2845314B1 (en) * 2012-04-30 2016-06-29 Merus Audio ApS Class d audio amplifier with adjustable loop filter characteristics
JP5910334B2 (ja) * 2012-06-11 2016-04-27 株式会社明電舎 ５レベル電力変換器
US9425705B2 (en) 2012-08-13 2016-08-23 Rockwell Automation Technologies, Inc. Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverter
EP2701304B1 (en) * 2012-08-23 2015-04-08 BlackBerry Limited Switching mode amplifier operation
US9059668B2 (en) 2012-08-23 2015-06-16 Blackberry Limited Switching mode amplifier operation
WO2014132683A1 (ja) 2013-02-28 2014-09-04 クラリオン株式会社 デジタルアンプ、３値信号出力方法、及び、スピーカー
US9941813B2 (en) 2013-03-14 2018-04-10 Solaredge Technologies Ltd. High frequency multi-level inverter
US9240731B2 (en) 2013-03-18 2016-01-19 Rockwell Automation Technologies, Inc. Power cell bypass method and apparatus for multilevel inverter
JP5597276B1 (ja) * 2013-04-02 2014-10-01 三菱電機株式会社 電源装置
JP6437001B2 (ja) * 2013-09-10 2018-12-12 インフィネオン テクノロジーズ オーストリア アクチエンゲゼルシャフト Ｄ級オーディオアンプ用の多相パルス幅変調器
ITMI20131762A1 (it) * 2013-10-23 2015-04-24 St Microelectronics Srl Metodo per ridurre la dissipazione di potenza in un amplificatore a commutazione e circuito implementante detto metodo
US9509261B2 (en) * 2013-12-02 2016-11-29 Crestron Electronics Inc. Reduced crosstalk and matched output power audio amplifier
CN103746562A (zh) * 2013-12-30 2014-04-23 西安爱科赛博电气股份有限公司 宽范围软开关三电平不对称半桥直流变换器、开关电源
US9520800B2 (en) * 2014-01-09 2016-12-13 Rockwell Automation Technologies, Inc. Multilevel converter systems and methods with reduced common mode voltage
CN104811073B (zh) * 2014-01-24 2019-05-31 通用电气能源电能变换科技有限公司 变换器模块、装置、系统和相关方法
CN103888091B (zh) * 2014-03-18 2017-06-06 西北工业大学 用于数字音频d类功放的谐波失真校正方法
US9318974B2 (en) 2014-03-26 2016-04-19 Solaredge Technologies Ltd. Multi-level inverter with flying capacitor topology
US9270504B2 (en) * 2014-07-28 2016-02-23 Mitsubishi Electric Research Laboratories, Inc. System and method for linearizing power amplifiers
US9263992B1 (en) 2014-09-15 2016-02-16 Apple Inc. Class D amplifier with variable switching frequency
DK3235267T3 (en) * 2014-12-17 2018-10-08 Widex As A HEARING DEVICE
JP2018502511A (ja) 2014-12-30 2018-01-25 メルス オーディオ アンパーツゼルスカブ マルチレベルクラスｄオーディオパワーアンプ
US9559541B2 (en) 2015-01-15 2017-01-31 Rockwell Automation Technologies, Inc. Modular multilevel converter and charging circuit therefor
WO2016127119A1 (en) * 2015-02-06 2016-08-11 Clean Energy Labs, Llc Loudspeaker having electrically conductive membrane transducers
US10177657B2 (en) * 2015-04-16 2019-01-08 Cirrus Logic, Inc. Reconfigurable switched mode converter
CN106301257B (zh) * 2015-05-12 2019-05-24 晶豪科技股份有限公司 音频放大器的调制选择电路及其方法
US9748862B2 (en) 2015-05-13 2017-08-29 Rockwell Automation Technologies, Inc. Sparse matrix multilevel actively clamped power converter
CN105188225A (zh) * 2015-09-30 2015-12-23 生迪智慧科技有限公司 Led驱动器和led灯
WO2017070389A1 (en) 2015-10-21 2017-04-27 Chirp Microsystems, Inc. Efficient on-chip high-voltage driver circuit for ultrasonic transducer
US10365833B2 (en) 2016-01-22 2019-07-30 Micron Technology, Inc. Apparatuses and methods for encoding and decoding of signal lines for multi-level communication architectures
KR102072765B1 (ko) * 2016-02-22 2020-03-02 주식회사 엘지화학 배터리 모듈 및 이를 포함하는 배터리 팩, 자동차
CN107306117B (zh) * 2016-04-22 2020-11-27 晶豪科技股份有限公司 四元/三元调制选择电路
US10447158B2 (en) * 2016-07-01 2019-10-15 Texas Instruments Incorporated Reducing voltage rating of devices in a multilevel converter
CN106385655B (zh) * 2016-08-31 2020-01-14 陕西千山航空电子有限责任公司 一种音频信号放大滤波方法
US9812990B1 (en) 2016-09-26 2017-11-07 Rockwell Automation Technologies, Inc. Spare on demand power cells for modular multilevel power converter
US10686378B2 (en) * 2016-12-16 2020-06-16 Futurewei Technologies, Inc. High-efficiency regulated buck-boost converter
JP6829879B2 (ja) * 2017-03-13 2021-02-17 国立大学法人横浜国立大学 線形増幅器、及び電力変換装置
EP3402070B1 (en) 2017-05-11 2020-02-12 Infineon Technologies Austria AG Class d audio amplifier with adjustable gate drive
EP3425795B1 (en) 2017-07-03 2021-09-01 Infineon Technologies Austria AG Class d audio amplifier with overload protection circuit
US10615701B2 (en) * 2017-07-14 2020-04-07 Futurewei Technologies, Inc. Hybrid resonant converter
US10283187B2 (en) 2017-07-19 2019-05-07 Micron Technology, Inc. Apparatuses and methods for providing additional drive to multilevel signals representing data
US10718801B2 (en) 2017-08-21 2020-07-21 Cirrus Logic, Inc. Reducing noise in a capacitive sensor with a pulse density modulator
EP3480950B1 (en) * 2017-11-01 2022-09-07 Nxp B.V. Load detector and method of detecting a load
KR102629644B1 (ko) * 2017-11-10 2024-01-30 시러스 로직 인터내셔널 세미컨덕터 리미티드 복수의 독립된 출력 스테이지들을 가진 클래스-d 증폭기
IT201800002255A1 (it) * 2018-01-31 2019-07-31 St Microelectronics Srl Circuito a commutazione, dispositivo e procedimento corrispondenti
US10658988B1 (en) * 2018-04-02 2020-05-19 Cirrus Logic, Inc. Open-loop class-D amplifier system with analog supply ramping
US10158299B1 (en) 2018-04-18 2018-12-18 Rockwell Automation Technologies, Inc. Common voltage reduction for active front end drives
US10425075B1 (en) * 2018-04-30 2019-09-24 Dialog Semiconductor (Uk) Limited Switching regulator slew rate control with S-curve shaping
CN108832917B (zh) * 2018-05-25 2021-09-03 郑州轻工业学院 一种用于免滤波数字d类音频功放的扩频调制方法
CN110545082B (zh) * 2018-05-28 2023-06-16 晶豪科技股份有限公司 音频放大器的调制选择电路
KR102013118B1 (ko) * 2018-06-05 2019-08-22 (주)아이언디바이스 스피커 드라이버 및 그 동작 방법
DE102018116924A1 (de) * 2018-07-12 2020-01-16 USound GmbH Vorrichtung zur Audiosignalverarbeitung für einen piezoelektrischen Lautsprecher
US10951204B2 (en) * 2018-08-30 2021-03-16 Maxim Integrated Products, Inc. Digital pulse width modulation driver system
US11043951B2 (en) 2018-11-30 2021-06-22 Palo Alto Research Center Incorporated Analog computer architecture for fast function optimization
US10763799B2 (en) * 2018-12-12 2020-09-01 Infineon Technologies Austria Ag Flying capacitor voltage control in an amplifier
US10484005B1 (en) * 2019-04-10 2019-11-19 Nuvoton Technology Corporation Method and apparatus of an acoustic energy detection circuit for a pulse density modulation microphone
EP3726730B1 (en) * 2019-04-17 2021-08-25 Goodix Technology (HK) Company Limited Peak current limiter
NL2023246B1 (en) 2019-06-01 2020-12-11 Semiconductor Ideas To The Market Itom Bv Three level PWM Class D amplifier
KR102320834B1 (ko) * 2019-07-14 2021-11-02 주식회사 인터엠 저전압 스트레스의 멀티레벨 디지털 앰프
US11211879B2 (en) 2019-09-23 2021-12-28 Rockwell Automation Technologies, Inc. Capacitor size reduction and lifetime extension for cascaded H-bridge drives
EP4055995B1 (en) * 2019-11-05 2024-01-31 Inventronics GmbH Signal generator and circuit for driving an electrical load
EP3846329B1 (en) * 2019-12-31 2025-08-06 Solaredge Technologies Ltd. Dc balancer circuit with zvs
US11581820B1 (en) * 2020-02-12 2023-02-14 Imagen Energy, LLC Multi-level inverter with mixed device types
US11336182B2 (en) * 2020-07-19 2022-05-17 xMEMS Labs, Inc. Driving circuit with energy recycle capability
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
GB2598038B (en) * 2020-08-13 2022-12-07 Cirrus Logic Int Semiconductor Ltd Driver circuits
US11277129B2 (en) 2020-08-13 2022-03-15 Cirrus Logic, Inc. Driver circuitry and operation
US11606642B2 (en) * 2020-08-13 2023-03-14 Cirrus Logic, Inc. Driver circuits
US11342878B1 (en) 2021-04-09 2022-05-24 Rockwell Automation Technologies, Inc. Regenerative medium voltage drive (Cascaded H Bridge) with reduced number of sensors
CN115865075A (zh) * 2021-09-23 2023-03-28 瑞昱半导体股份有限公司 驱动电路与信号转换电路
US12323112B1 (en) 2021-10-29 2025-06-03 Renesas Design (UK) Limited Signal amplifier
CN114257702B (zh) * 2021-11-04 2024-02-13 科大讯飞股份有限公司 音视频处理电路、控制方法、控制装置和电子设备
US11689165B1 (en) 2021-12-27 2023-06-27 Dialog Semiconductor B.V. Adaptive sample and hold circuit for signal amplifier range selection
US12184272B2 (en) * 2023-04-27 2024-12-31 Cirrus Logic Inc. Switching transducer driver
TWI854619B (zh) * 2023-04-28 2024-09-01 台達電子工業股份有限公司 功率轉換器及多階層功率轉換系統
CN118868602A (zh) 2023-04-28 2024-10-29 台达电子工业股份有限公司 功率转换器及多阶层功率转换系统
KR20250061833A (ko) 2023-10-29 2025-05-08 박세형 지문 인식 자물쇠
CN120512147B (zh) * 2025-07-10 2025-10-31 苏州门海微电子科技有限公司 一种多电平d类功放、pa芯片及宽带载波通信系统

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0667204B2 (ja) * 1987-10-08 1994-08-24 三菱電機株式会社 電力変換装置
US4894621A (en) * 1988-06-13 1990-01-16 Westinghouse Electric Corp. Circuit for five level waveform synthesis
US5337338A (en) * 1993-02-01 1994-08-09 Qualcomm Incorporated Pulse density modulation circuit (parallel to serial) comparing in a nonsequential bit order
GB2314474B (en) * 1996-06-21 2001-03-07 Univ Bristol Low power audio device
US5805020A (en) * 1996-06-27 1998-09-08 Harris Corporation Silent start class D amplifier
US5982231A (en) * 1997-07-23 1999-11-09 Linfinity Microelectronics, Inc. Multiple channel class D audio amplifier
JP2001502156A (ja) * 1997-08-12 2001-02-13 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ ディジタル信号増幅装置
WO1999041828A1 (en) * 1998-02-13 1999-08-19 Wisconsin Alumni Research Foundation Hybrid topology for multilevel power conversion
CN1142625C (zh) 1998-07-24 2004-03-17 得州仪器丹麦有限公司 减弱放大器中的过零失真和噪声的方法以及放大器
US6388514B1 (en) * 1998-12-23 2002-05-14 International Rectifier Corporation Class D high voltage amplifier system with adaptive power supply
US6229390B1 (en) * 1999-03-09 2001-05-08 Tripath Technology, Inc. Methods and apparatus for noise shaping a mixed signal power output
US6353354B1 (en) * 1999-09-28 2002-03-05 Mts Systems Corporation Pulse-width modulated bridge circuit within a second bridge circuit
US6262632B1 (en) * 1999-11-16 2001-07-17 Texas Instruments Incorporated Concept and method to enable filterless, efficient operation of Class-D amplifiers
US6320460B1 (en) * 2000-05-30 2001-11-20 Ivan Meszlenyi Class D amplifier
US6492868B2 (en) * 2000-08-14 2002-12-10 Larry Kirn Dynamic range enhancement technique
TW453045B (en) 2000-10-09 2001-09-01 Winbond Electronics Corp Multi-level pulse width modulation device and its control structure
US6545533B2 (en) * 2000-12-18 2003-04-08 Texas Instruments Incorporated Class D audio speaker amplifier circuit with pseudo noise modulation
JP4147373B2 (ja) * 2001-01-09 2008-09-10 富士電機システムズ株式会社 インバータの制御方法
JP2002247862A (ja) * 2001-02-20 2002-08-30 Hitachi Ltd 電力変換装置
US6621335B2 (en) * 2001-04-18 2003-09-16 Microsemi Corporation Class D amplifier with passive RC network
SE0101720D0 (sv) * 2001-05-16 2001-05-16 Bang & Olufsen Powerhouse As Apparatus for electric to acoustic conversion
EP1351380A1 (en) * 2002-04-02 2003-10-08 Dialog Semiconductor GmbH Class D amplifier energy control
JP2004072707A (ja) * 2002-06-13 2004-03-04 Sony Corp パワーアンプ装置
EP1469594A1 (en) * 2003-04-17 2004-10-20 Dialog Semiconductor GmbH Multi level Class-D amplifier by means of 2 physical layers
US7050311B2 (en) * 2003-11-25 2006-05-23 Electric Power Research Institute, Inc. Multilevel converter based intelligent universal transformer
US6969967B2 (en) * 2003-12-12 2005-11-29 Ut-Battelle Llc Multi-level dc bus inverter for providing sinusoidal and PWM electrical machine voltages
CN1638266A (zh) * 2003-12-16 2005-07-13 国际整流器公司 利用可调供电电压的d类放大器中的音量控制
US7272020B2 (en) 2004-02-20 2007-09-18 Northeastern University Isolated, current-fed, pulse width modulation, DC-DC converter
GB2425668B (en) 2005-01-17 2009-02-25 Wolfson Microelectronics Plc Pulse width modulator quantisation circuit
JP4742229B2 (ja) 2005-02-08 2011-08-10 富士電機株式会社 ５レベルインバータとその駆動方法
JP4736630B2 (ja) * 2005-08-29 2011-07-27 日本ビクター株式会社 Ｄクラスアンプ
US7332962B2 (en) * 2005-12-27 2008-02-19 Amazion Electronics, Inc. Filterless class D power amplifier
US7286009B2 (en) * 2005-12-30 2007-10-23 D2Audio Corporation Digital PWM amplifier with simulation-based feedback
WO2008050273A2 (en) * 2006-10-26 2008-05-02 Nxp B.V. Class d amplifier
WO2008050272A2 (en) 2006-10-26 2008-05-02 Nxp B.V. Voltage-boosting stage
ATE513361T1 (de) * 2006-12-21 2011-07-15 Bang & Olufsen Icepower As Fehlerkorrektursystem für eine klasse-d- leistungsstufe
US8427235B2 (en) * 2007-04-13 2013-04-23 Advanced Analogic Technologies, Inc. Power-MOSFETs with improved efficiency for multi-channel class-D audio amplifiers and packaging thereof
TWI339008B (en) 2007-12-05 2011-03-11 Ite Tech Inc Class-d amplifier and multi-level output signal generated method thereof
JP5532192B2 (ja) 2008-01-24 2014-06-25 独立行政法人産業技術総合研究所 電力変換装置
CN101557200B (zh) * 2008-04-08 2011-05-18 原景科技股份有限公司 可噪声修整的功率放大器
JP4964825B2 (ja) * 2008-05-22 2012-07-04 シャープ株式会社 変調装置、ｄ級増幅装置及び変調方法
US20100045376A1 (en) * 2008-08-25 2010-02-25 Eric Soenen Class d amplifier control circuit and method
CA2743085C (en) * 2008-11-10 2018-02-13 Socovar S.E.C. Multilevel electric power converter
US8144491B2 (en) * 2008-12-31 2012-03-27 Drs Power & Control Technologies, Inc. Cascaded flying capacitor modular high voltage inverters
KR101650812B1 (ko) 2009-03-03 2016-08-24 삼성전자주식회사 하프-브릿지 3-레벨 ｐｗｍ 증폭기 및 그 구동 방법
JP2010213114A (ja) * 2009-03-11 2010-09-24 Yamaha Corp Ｄ級増幅回路
US8135145B2 (en) * 2009-07-22 2012-03-13 National Yunlin University Of Science And Technology Multi-level output signal converter
EP2309638A1 (en) 2009-10-09 2011-04-13 Nxp B.V. Multi-level switching converter
US8008969B1 (en) * 2010-03-30 2011-08-30 Texas Instruments Incorporated Single supply class-D amplifier
CN101814900B (zh) * 2010-04-15 2012-02-15 无锡辐导微电子有限公司 D类音频放大器及其输出非线性改善方法
US8482346B2 (en) * 2010-06-14 2013-07-09 Harman International Industries, Incorporated High efficiency balanced output amplifier system
US8212612B2 (en) * 2010-07-19 2012-07-03 Broadcom Corporation Closed-loop class-D amplifier with modulated reference signal and related method
US8526640B2 (en) * 2010-08-25 2013-09-03 Modiotek Co., Ltd. Apparatus and method for switching audio amplification
EP2619895A4 (en) * 2010-09-21 2016-07-27 Benshaw Inc BIPOLAR MULTIPLE INVERTER
RS67266B1 (sr) 2013-03-13 2025-10-31 Sage Therapeutics Inc Neuroaktivni steroidi i postupci za njihovu upotrebu

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KR20180004835A (ko) 2018-01-12
JP2013541305A (ja) 2013-11-07
CN103329431B (zh) 2016-09-14
US9979354B2 (en) 2018-05-22
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EP3048724A1 (en) 2016-07-27
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JP6023361B2 (ja) 2016-11-09
CN106330117A (zh) 2017-01-11
EP3048724B1 (en) 2017-06-14
EP2633621A1 (en) 2013-09-04
EP2633621B1 (en) 2017-08-30
US20130223651A1 (en) 2013-08-29
US20170117851A1 (en) 2017-04-27
KR20130132456A (ko) 2013-12-04
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US9515617B2 (en) 2016-12-06
WO2012055968A1 (en) 2012-05-03
CN103329431A (zh) 2013-09-25

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