HK1094626A1 - Clip detection in pwm amplifier - Google Patents

Clip detection in pwm amplifier

Info

Publication number
HK1094626A1
HK1094626A1 HK07101872.4A HK07101872A HK1094626A1 HK 1094626 A1 HK1094626 A1 HK 1094626A1 HK 07101872 A HK07101872 A HK 07101872A HK 1094626 A1 HK1094626 A1 HK 1094626A1
Authority
HK
Hong Kong
Prior art keywords
pwm amplifier
clip detection
clip
detection
pwm
Prior art date
Application number
HK07101872.4A
Other languages
English (en)
Inventor
Jack B Anderson
Larry E Hand
Wilson E Taylor
Original Assignee
D2Audio 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
Application filed by D2Audio Corp filed Critical D2Audio Corp
Publication of HK1094626A1 publication Critical patent/HK1094626A1/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • 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
    • H03F1/523—Circuit arrangements for protecting such amplifiers for amplifiers using field-effect devices
    • 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
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • 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
    • H03F3/2175—Class D power amplifiers; Switching amplifiers using analogue-digital or digital-analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/002—Control of digital or coded signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0016—Arrangements for synchronising receiver with transmitter correction of synchronization errors
    • H04L7/005—Correction by an elastic buffer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Amplifiers (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
HK07101872.4A 2003-03-21 2007-02-15 Clip detection in pwm amplifier HK1094626A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US45641403P 2003-03-21 2003-03-21
US46977003P 2003-05-12 2003-05-12
PCT/US2004/008534 WO2004086616A2 (en) 2003-03-21 2004-03-19 Clip detection in pwm amplifier

Publications (1)

Publication Number Publication Date
HK1094626A1 true HK1094626A1 (en) 2007-04-04

Family

ID=33101242

Family Applications (1)

Application Number Title Priority Date Filing Date
HK07101872.4A HK1094626A1 (en) 2003-03-21 2007-02-15 Clip detection in pwm amplifier

Country Status (5)

Country Link
EP (1) EP1606884A2 (xx)
JP (1) JP4617298B2 (xx)
CN (1) CN1894855B (xx)
HK (1) HK1094626A1 (xx)
WO (1) WO2004086616A2 (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4618017B2 (ja) * 2004-07-02 2011-01-26 ヤマハ株式会社 パルス幅変調増幅器のクリップ抑止回路
US7286010B2 (en) * 2006-01-26 2007-10-23 D2Audio Corporation Systems and methods for over-current protection
JP5266830B2 (ja) * 2008-03-26 2013-08-21 ヤマハ株式会社 自励式ｄ級増幅器
CN103955784B (zh) * 2014-04-01 2016-09-14 南京航空航天大学 基于数据采集协处理器的制造车间个人电子看板系统
US10256780B2 (en) 2015-04-09 2019-04-09 Icepower A/S Duty cycle clipper
CN107221335B (zh) * 2017-05-27 2020-07-14 大连理工大学 一种监控音频信号的数字化装置和方法
CN109766889B (zh) * 2018-11-19 2021-04-09 浙江众合科技股份有限公司 基于曲线拟合的轨道图像识别后处理方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3047420B2 (ja) * 1990-03-15 2000-05-29 ソニー株式会社 データ圧縮符号化装置
JP3121987B2 (ja) * 1994-05-11 2001-01-09 シャープ株式会社 スピーカー駆動装置
JP3214981B2 (ja) * 1994-06-30 2001-10-02 旭化成マイクロシステム株式会社 Ａｇｃ機能付きデルタシグマ型ａ／ｄ変換器
JP2000022544A (ja) * 1998-07-01 2000-01-21 Mitsubishi Electric Corp Ｄ／ａ変換装置
US6157331A (en) * 1998-10-01 2000-12-05 Tritech Microelectronics, Ltd. Sigma delta modulator with automatic saturation detection and recovery
US6122331A (en) * 1999-06-14 2000-09-19 Atmel Corporation Digital automatic gain control
WO2001026222A1 (en) * 1999-10-01 2001-04-12 Smith Carroll W Dynamic closed-loop audio amplifier system
US8085943B2 (en) * 1999-11-29 2011-12-27 Bizjak Karl M Noise extractor system and method
US6577737B1 (en) * 2000-02-17 2003-06-10 Visteon Global Technologies, Inc. Method of detecting a DC offset in an automotive audio system
JP4251769B2 (ja) * 2000-11-15 2009-04-08 ヤマハ株式会社 ディジタルオーディオアンプ
JP3815607B2 (ja) * 2001-11-16 2006-08-30 横河電機株式会社 アナログデジタル変換器を用いた温度伝送器

Also Published As

Publication number Publication date
CN1894855B (zh) 2011-06-15
JP2006523414A (ja) 2006-10-12
WO2004086616A2 (en) 2004-10-07
EP1606884A2 (en) 2005-12-21
WO2004086616A3 (en) 2004-11-25
JP4617298B2 (ja) 2011-01-19
CN1894855A (zh) 2007-01-10

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20160319