JP5415765B2 - デジタルオーディオ信号増幅器及びこれに適したデジタルオーディオ信号増幅方法 - Google Patents

デジタルオーディオ信号増幅器及びこれに適したデジタルオーディオ信号増幅方法 Download PDF

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Publication number
JP5415765B2
JP5415765B2 JP2008535471A JP2008535471A JP5415765B2 JP 5415765 B2 JP5415765 B2 JP 5415765B2 JP 2008535471 A JP2008535471 A JP 2008535471A JP 2008535471 A JP2008535471 A JP 2008535471A JP 5415765 B2 JP5415765 B2 JP 5415765B2
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Japan
Prior art keywords
audio signal
output
pulse
digital audio
negative feedback
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Expired - Fee Related
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JP2008535471A
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English (en)
Japanese (ja)
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JP2009512333A (ja
JP2009512333A5 (https=
Inventor
ムン，ビョン−ミン
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • 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
    • 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
    • H03F1/0216—Continuous control
    • H03F1/0222—Continuous control by using a signal derived from the input signal
    • H03F1/0227—Continuous control by using a signal derived from the input signal using supply 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
    • 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
    • H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
    • H03F1/307—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in push-pull amplifiers
    • 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
    • H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
    • 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
    • H03F1/52—Circuit arrangements for protecting such 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
    • 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
    • H03F2200/351—Pulse width modulation being used in an amplifying circuit
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/504—Indexing scheme relating to amplifiers the supply voltage or current being continuously controlled by a controlling signal, e.g. the controlling signal of a transistor implemented as variable resistor in a supply path for, an IC-block showed amplifier
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/541—Transformer coupled at the output of an amplifier

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
JP2008535471A 2005-10-24 2006-10-24 デジタルオーディオ信号増幅器及びこれに適したデジタルオーディオ信号増幅方法 Expired - Fee Related JP5415765B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR10-2005-0100402 2005-10-24
KR1020050100402A KR101128520B1 (ko) 2005-10-24 2005-10-24 디지털 오디오 증폭기 및 이에 적합한 디지털 오디오 신호증폭 방법
PCT/KR2006/004341 WO2007049898A1 (en) 2005-10-24 2006-10-24 Digital audio amplifier and digital audio amplifying method therefor

Publications (3)

Publication Number Publication Date
JP2009512333A JP2009512333A (ja) 2009-03-19
JP2009512333A5 JP2009512333A5 (https=) 2010-04-02
JP5415765B2 true JP5415765B2 (ja) 2014-02-12

Family

ID=37967975

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008535471A Expired - Fee Related JP5415765B2 (ja) 2005-10-24 2006-10-24 デジタルオーディオ信号増幅器及びこれに適したデジタルオーディオ信号増幅方法

Country Status (5)

Country Link
US (1) US7952426B2 (https=)
JP (1) JP5415765B2 (https=)
KR (1) KR101128520B1 (https=)
CN (1) CN101278477B (https=)
WO (1) WO2007049898A1 (https=)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9036835B2 (en) * 2007-11-05 2015-05-19 Aliphcom Combining an audio power amplifier and a power converter in a single device
US8089311B2 (en) 2008-01-22 2012-01-03 Analog Devices, Inc. Signal amplifier
JP2011160538A (ja) * 2010-01-29 2011-08-18 Panasonic Corp 電源装置及びデジタルアンプ
US8384478B2 (en) * 2010-03-04 2013-02-26 Bose Corporation Versatile audio power amplifier
US8410851B1 (en) 2011-09-12 2013-04-02 Wen-Hsiung Hsieh Switching amplifier with an inductor
US8228118B1 (en) 2011-09-17 2012-07-24 Wen-Hsiung Hsieh Switching amplifier using capacitor for transmitting energy
US8212613B1 (en) 2011-09-21 2012-07-03 Wen-Hsiung Hsieh Switching amplifier using flyback transformer
US8451057B2 (en) 2011-11-02 2013-05-28 Wen-Hsiung Hsieh Switching amplifier using inductor current feedback
US9602067B2 (en) * 2011-11-15 2017-03-21 Wen-Hsiung Hsieh Switching amplifier with pulsed current supply
US8416020B1 (en) 2011-11-20 2013-04-09 Wen-Hsiung Hsieh Switching amplifier and switching amplifying method
US8432221B1 (en) 2011-11-27 2013-04-30 Wen-Hsiung Hsieh Switching amplifying method and switching amplifier
US8525587B2 (en) 2011-12-04 2013-09-03 Wen-Hsiung Hsieh Switching amplifier with inductance means for transmitting energy
CN102412741A (zh) * 2011-12-12 2012-04-11 西安福安创意咨询有限责任公司 一种日光灯隔离型双电源方法
US8760230B2 (en) 2012-06-28 2014-06-24 Wen-Hsiung Hsieh Switching amplifier with pulsed current source and sink
CN105075091B (zh) * 2012-11-28 2018-03-02 广东锐顶电力技术有限公司 超高效率单级隔离式开关功率放大器
US9293997B2 (en) 2013-03-14 2016-03-22 Analog Devices Global Isolated error amplifier for isolated power supplies
CN104092369B (zh) * 2014-06-27 2017-01-11 北京控制工程研究所 一种基于数字光耦的开关电源反馈电路
CN104408835B (zh) * 2014-10-21 2018-01-12 深圳市易联技术有限公司 一种应用于pos终端有线音频通信中的抗干扰装置
KR101619837B1 (ko) 2014-11-20 2016-05-11 서용상 디급 디지털 증폭기
CN104581530B (zh) * 2014-12-23 2018-12-28 福建星网视易信息系统有限公司 一种降低信号噪音的电路、装置和系统
EP3101807A1 (de) * 2015-06-01 2016-12-07 Siemens Schweiz AG Verstärkerschaltung und verfahren zum betrieb einer verstärkerschaltung
CN105306044B (zh) * 2015-11-20 2019-03-12 中国航天科技集团公司第五研究院第五一三研究所 一种信号完全隔离的滤波电路
WO2018048975A1 (en) 2016-09-09 2018-03-15 Bristol-Myers Squibb Company Use of an anti-pd-1 antibody in combination with an anti-mesothelin antibody in cancer treatment
CN107333213B (zh) * 2017-08-30 2024-02-13 东莞精恒电子有限公司 一种脉宽调制300w+双150w(pfc)功放模组
EP3505034B1 (en) * 2017-12-28 2025-02-12 Makita Corporation Interlocking adapter, and method for operating electric apparatus in interlocking manner with working machine
CN109065011B (zh) * 2018-09-05 2024-04-05 厦门轻唱科技有限公司 卡拉ok一体机以及k歌系统
KR102112253B1 (ko) * 2019-12-24 2020-05-18 가락전자 주식회사 전원 증폭기와 음향 증폭기가 일체화된 고효율 음향 증폭 장치
KR102156327B1 (ko) * 2020-05-21 2020-09-15 (주)아이엠피 단일권선 변압기와 스너버 캐패시터를 이용한 절연형 Class D 오디오 앰프
KR102156325B1 (ko) * 2020-05-21 2020-09-15 (주)아이엠피 센터탭 변압기의 유니폴라 동기식 절연형 Class D 오디오 앰프
KR102156315B1 (ko) * 2020-05-21 2020-09-15 (주)아이엠피 절연형 Class D 오디오 앰프
KR102156330B1 (ko) * 2020-05-21 2020-09-15 (주)아이엠피 센터탭 변압기와 스너버 캐패시터를 이용한 절연형 Class D 오디오 앰프
KR102156322B1 (ko) * 2020-05-21 2020-09-15 (주)아이엠피 단일권선 변압기의 유니폴라 동기식 절연형 Class D 오디오 앰프
CN112865722B (zh) * 2021-01-08 2022-06-14 四川湖山电器股份有限公司 一种数字功率放大器过流保护检测电路及数字功率放大器

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8905002D0 (en) * 1989-03-04 1989-04-19 Attwood Brian E Audio amplifiers
US5270904A (en) * 1990-05-02 1993-12-14 Zdzislaw Gulczynski Switching power apparatus with 3-state driver
JPH06244654A (ja) * 1993-02-16 1994-09-02 Ryowa Denshi Kk アイソレーションアンプ
US5410592A (en) * 1993-06-04 1995-04-25 Harris Corporation Class `D` audio speaker amplifier circuit with state variable feedback control
KR100256377B1 (ko) * 1997-06-18 2000-05-15 김만식 저전압 증폭장치
US5949282A (en) * 1998-02-25 1999-09-07 National Semiconductor Corporation Class D amplifier no low pass filter feedback with zero phase delay
US5986498A (en) * 1998-04-14 1999-11-16 Harman International Industries, Incorporated Audio direct from power supply
US6396340B1 (en) * 2000-09-22 2002-05-28 Harris Corporation RF power amplifier system employing AC-DC power supplies and RF combining
JP2002151979A (ja) * 2000-11-09 2002-05-24 Sony Corp Ｐｗｍオーディオ増幅装置
US6563377B2 (en) * 2001-10-09 2003-05-13 Evenstar, Inc. Class D switching audio amplifier
JP2003188660A (ja) * 2001-12-14 2003-07-04 Sony Corp 電力調整装置
WO2003052912A1 (en) * 2001-12-17 2003-06-26 Koninklijke Philips Electronics N.V. Isolated converter with synchronized switching leg
JP3982342B2 (ja) * 2002-03-28 2007-09-26 ヤマハ株式会社 Ｄ級増幅器における三角波生成回路および該三角波生成回路を用いたｄ級増幅器
US6924700B2 (en) * 2002-10-03 2005-08-02 Mitsubishi Denki Kabushiki Kaisha Class D amplifier
KR100502415B1 (ko) * 2002-12-10 2005-07-19 삼성전자주식회사 보호 회로를 갖는 클래스 디이 파워 앰프
CN1549445A (zh) * 2003-05-20 2004-11-24 磊 庄 数字功放定压输出方法
JP4067475B2 (ja) * 2003-08-21 2008-03-26 シャープ株式会社 信号増幅出力装置
KR20050020353A (ko) * 2003-08-22 2005-03-04 학교법인 포항공과대학교 Ｄ급 앰프 회로의 고조파왜율 저감 회로 및 그 방법
JP2005236349A (ja) * 2004-02-17 2005-09-02 Toa Corp 増幅器
CN2722488Y (zh) * 2004-03-15 2005-08-31 深圳市中资源科技发展有限公司 一种手机电池充电器
JP2005269580A (ja) * 2004-03-16 2005-09-29 Koichi Nakagawa 注入同期した自励発振型ｐｗｍモジュレータ方式
WO2005114833A2 (en) * 2004-05-18 2005-12-01 Nphysics, Inc. Self-oscillation switching amplifier
KR100608001B1 (ko) * 2004-08-17 2006-08-02 삼성전자주식회사 오디오 앰프의 전류 제한 장치 및 그 방법
US7279967B2 (en) * 2005-01-12 2007-10-09 Qsc Audio Products, Inc. Multi-channel, multi-power class D amplifier with regulated power supply
KR200450410Y1 (ko) 2010-01-21 2010-09-30 슈 첸 쉬 밟을 필요가 없는 전동 탈수통

Also Published As

Publication number Publication date
CN101278477B (zh) 2011-05-18
KR101128520B1 (ko) 2012-03-27
WO2007049898A1 (en) 2007-05-03
US20080252370A1 (en) 2008-10-16
JP2009512333A (ja) 2009-03-19
KR20070044283A (ko) 2007-04-27
US7952426B2 (en) 2011-05-31
CN101278477A (zh) 2008-10-01

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