ATE521133T1 - Klasse d verstärker - Google Patents

Klasse d verstärker

Info

Publication number
ATE521133T1
ATE521133T1 AT06020327T AT06020327T ATE521133T1 AT E521133 T1 ATE521133 T1 AT E521133T1 AT 06020327 T AT06020327 T AT 06020327T AT 06020327 T AT06020327 T AT 06020327T AT E521133 T1 ATE521133 T1 AT E521133T1
Authority
AT
Austria
Prior art keywords
amplifier
class
signal
input signal
clip
Prior art date
Application number
AT06020327T
Other languages
English (en)
Inventor
Toshio Maejima
Masayuki Iwamatsu
Original Assignee
Yamaha Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37433929&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE521133(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP2006226269A external-priority patent/JP4529958B2/ja
Priority claimed from JP2006226272A external-priority patent/JP4853176B2/ja
Application filed by Yamaha Corp filed Critical Yamaha Corp
Application granted granted Critical
Publication of ATE521133T1 publication Critical patent/ATE521133T1/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/66—Clipping circuitry being present in an amplifier, i.e. the shape of the signal being modified

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
AT06020327T 2005-09-28 2006-09-27 Klasse d verstärker ATE521133T1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2005282128 2005-09-28
JP2006226269A JP4529958B2 (ja) 2005-09-28 2006-08-23 Ｄ級増幅器
JP2006226272A JP4853176B2 (ja) 2005-09-28 2006-08-23 Ｄ級増幅器

Publications (1)

Publication Number Publication Date
ATE521133T1 true ATE521133T1 (de) 2011-09-15

Family

ID=37433929

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06020327T ATE521133T1 (de) 2005-09-28 2006-09-27 Klasse d verstärker

Country Status (5)

Country Link
US (3) US7482870B2 (de)
EP (2) EP1962419B1 (de)
KR (1) KR100805437B1 (de)
CN (4) CN1941613B (de)
AT (1) ATE521133T1 (de)

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ATE521133T1 (de) 2005-09-28 2011-09-15 Yamaha Corp Klasse d verstärker
US20070211839A1 (en) * 2006-03-08 2007-09-13 Pentax Corporation Sampling timing monitoring system and endoscope having the same
US20080101628A1 (en) * 2006-10-27 2008-05-01 Pacifictech Microelectronics, Inc. Switching amplifier circuits and methods
US8111846B2 (en) 2007-01-03 2012-02-07 Pacifictech Microelectronics, Inc. Low distortion switching amplifier circuits and methods
GB0715254D0 (en) 2007-08-03 2007-09-12 Wolfson Ltd Amplifier circuit
CN101615893B (zh) * 2008-06-24 2011-11-09 瑞昱半导体股份有限公司 使用积分三角调变的放大器及调整此放大器的误差的方法
TW201015845A (en) * 2008-10-01 2010-04-16 Richtek Technology Corp Class D amplifier and control method thereof
JP5157959B2 (ja) 2009-02-27 2013-03-06 ヤマハ株式会社 Ｄ級増幅器
JP5196185B2 (ja) * 2009-03-25 2013-05-15 ヤマハ株式会社 Ｄ級増幅回路
JP5233792B2 (ja) * 2009-03-27 2013-07-10 ヤマハ株式会社 増幅回路
DE102009060553A1 (de) * 2009-08-24 2011-03-03 Vitaphone Gmbh Verfahren und System zur Speicherung und Auswertung von Daten, insbesondere Vitaldaten
JP2011066558A (ja) * 2009-09-15 2011-03-31 Yamaha Corp Ｄ級増幅器
JP5482232B2 (ja) * 2010-01-26 2014-05-07 ヤマハ株式会社 信号処理回路
JP5578062B2 (ja) * 2010-12-21 2014-08-27 ヤマハ株式会社 Ｄ級増幅回路
US8441316B2 (en) 2011-01-06 2013-05-14 Diodes Incorporated Switching supply circuits and methods
JP5664265B2 (ja) 2011-01-19 2015-02-04 ヤマハ株式会社 ダイナミックレンジ圧縮回路
DE112012001000T5 (de) 2011-02-25 2013-11-21 Maxim Integrated Products, Inc. Kapazitive Berührungserkennungs-Architektur
US9086439B2 (en) 2011-02-25 2015-07-21 Maxim Integrated Products, Inc. Circuits, devices and methods having pipelined capacitance sensing
US8860432B2 (en) 2011-02-25 2014-10-14 Maxim Integrated Products, Inc. Background noise measurement and frequency selection in touch panel sensor systems
CN102866296A (zh) 2011-07-08 2013-01-09 杜比实验室特许公司 估计非线性失真的方法和系统、调节参数的方法和系统
US9949031B2 (en) * 2012-04-10 2018-04-17 Synaptics Incorporated Class-D amplifier with pulse density modulation output feedback for higher performance acoustic echo canceller
CN102857185B (zh) * 2012-09-16 2017-05-31 江门市鸣锐电子有限公司 D类功率放大器防破音自动增益调节电路
US8988114B2 (en) * 2012-11-20 2015-03-24 Freescale Semiconductor, Inc. Low-power voltage tamper detection
US9509261B2 (en) * 2013-12-02 2016-11-29 Crestron Electronics Inc. Reduced crosstalk and matched output power audio amplifier
US9294057B2 (en) * 2013-12-18 2016-03-22 National Instruments Corporation Efficient low noise high speed amplifier
CN104811151B (zh) * 2014-01-28 2018-04-10 意法半导体研发(深圳)有限公司 用于减少放大器中的削波的设备和方法
KR101727626B1 (ko) 2015-11-19 2017-05-02 한국과학기술원 클래스-디 증폭기, 이를 포함하는 오디오 처리 장치 및 클래스-디 증폭기의 구동 방법
US10256777B2 (en) 2016-02-29 2019-04-09 Qualcomm Incorporated Audio amplifiers
US10218312B2 (en) 2016-02-29 2019-02-26 Qualcomm Incorporated Dynamic volume management in audio amplifiers
WO2018120072A1 (en) * 2016-12-30 2018-07-05 Texas Instruments Incorporated Total harmonic distortion (thd) controlled clip detector and automatic gain limiter (agl)
JP6682463B2 (ja) 2017-02-21 2020-04-15 株式会社東芝 Ｄ級アンプ
CN107104650A (zh) * 2017-03-30 2017-08-29 歌尔丹拿音响有限公司 增益调节方法、装置、音频编码器及音响设备
EP3721552B1 (de) 2017-12-07 2025-10-08 Purifi ApS Verstärkerschaltung
CN111448755A (zh) * 2017-12-07 2020-07-24 普立菲有限公司 具有带至少三阶网络的补偿器的放大器
KR20200096590A (ko) 2017-12-07 2020-08-12 퓨리파이 에이피에스 제어 루프에서 적어도 2차 필터를 갖는 증폭기
US11088720B2 (en) 2017-12-20 2021-08-10 Murata Manufacturing Co., Ltd. High-frequency module
US11072298B1 (en) * 2018-01-06 2021-07-27 Stillwater Designs And Audio, Inc. On-demand power supply in vehicle sound system
CN115102547B (zh) * 2022-05-31 2024-06-07 成都菁汇科技有限公司 一种多通道零基准和增益同步自动校准的方法
CN115459721B (zh) * 2022-08-25 2026-03-20 骏盈半导体(上海)有限公司 音频功放电路
US12356158B2 (en) * 2023-03-22 2025-07-08 Cirrus Logic Inc. Clipping prevention in switched mode drivers
TWI867939B (zh) * 2024-01-15 2024-12-21 晶豪科技股份有限公司 Ｄ類音頻放大器及其調變方法

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US6107875A (en) * 1998-10-15 2000-08-22 Intersil Corporation Variable frequency class D modulator with built in soft clipping and frequency limiting
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US6122331A (en) * 1999-06-14 2000-09-19 Atmel Corporation Digital automatic gain control
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US6621335B2 (en) 2001-04-18 2003-09-16 Microsemi Corporation Class D amplifier with passive RC network
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US7590251B2 (en) * 2003-03-21 2009-09-15 D2Audio Corporation Clip detection in PWM amplifier
US7038535B2 (en) * 2003-03-29 2006-05-02 Wai Laing Lee PWM digital amplifier with high-order loop filter
JP4172705B2 (ja) 2003-08-07 2008-10-29 福井県 ブロックマット
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US7142050B2 (en) * 2003-10-15 2006-11-28 Texas Instruments Incorporated Recovery from clipping events in a class D amplifier
JP2005123949A (ja) 2003-10-17 2005-05-12 Yamaha Corp Ｄ級増幅器
CN100468960C (zh) 2003-11-26 2009-03-11 雅马哈株式会社 D类放大器
JP4710298B2 (ja) * 2003-11-26 2011-06-29 ヤマハ株式会社 Ｄ級増幅器
ATE521133T1 (de) 2005-09-28 2011-09-15 Yamaha Corp Klasse d verstärker
KR101062259B1 (ko) * 2006-05-15 2011-09-06 아사히 가세이 일렉트로닉스 가부시끼가이샤 구동 장치, 구동 방법, 및 정보 기기
US8111846B2 (en) * 2007-01-03 2012-02-07 Pacifictech Microelectronics, Inc. Low distortion switching amplifier circuits and methods
CN101369802B (zh) * 2007-08-16 2012-09-05 美国芯源系统股份有限公司 闭环d类功率放大器及其控制方法

Also Published As

Publication number Publication date
US8299853B2 (en) 2012-10-30
CN101807889A (zh) 2010-08-18
CN101807887A (zh) 2010-08-18
EP1962419B1 (de) 2013-01-16
EP1962419A3 (de) 2011-12-07
US8054129B2 (en) 2011-11-08
KR20070036008A (ko) 2007-04-02
US20070103234A1 (en) 2007-05-10
CN1941613B (zh) 2010-05-12
CN101807887B (zh) 2013-04-03
EP1962419A2 (de) 2008-08-27
EP1770855B1 (de) 2011-08-17
KR100805437B1 (ko) 2008-02-20
US7482870B2 (en) 2009-01-27
CN101807888B (zh) 2013-01-02
CN1941613A (zh) 2007-04-04
US20090115514A1 (en) 2009-05-07
CN101807889B (zh) 2013-04-24
CN101807888A (zh) 2010-08-18
EP1770855A1 (de) 2007-04-04
US20110221529A1 (en) 2011-09-15

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