DE60216839D1 - Leistungsverstärker - Google Patents

Leistungsverstärker

Info

Publication number
DE60216839D1
DE60216839D1 DE60216839T DE60216839T DE60216839D1 DE 60216839 D1 DE60216839 D1 DE 60216839D1 DE 60216839 T DE60216839 T DE 60216839T DE 60216839 T DE60216839 T DE 60216839T DE 60216839 D1 DE60216839 D1 DE 60216839D1
Authority
DE
Germany
Prior art keywords
power amplifier
amplifier
power
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE60216839T
Other languages
English (en)
Other versions
DE60216839T2 (de
Inventor
Jun Honda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer 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 Pioneer Corp filed Critical Pioneer Corp
Application granted granted Critical
Publication of DE60216839D1 publication Critical patent/DE60216839D1/de
Publication of DE60216839T2 publication Critical patent/DE60216839T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • H03F3/2171—Class D power amplifiers; Switching amplifiers with field-effect devices
    • 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
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/426—Indexing scheme relating to amplifiers the amplifier comprising circuitry for protection against overload

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
DE60216839T 2001-03-21 2002-03-20 Leistungsverstärker Expired - Fee Related DE60216839T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001080812 2001-03-21
JP2001080812A JP2002280843A (ja) 2001-03-21 2001-03-21 電力増幅装置

Publications (2)

Publication Number Publication Date
DE60216839D1 true DE60216839D1 (de) 2007-02-01
DE60216839T2 DE60216839T2 (de) 2007-08-30

Family

ID=18937023

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60216839T Expired - Fee Related DE60216839T2 (de) 2001-03-21 2002-03-20 Leistungsverstärker

Country Status (4)

Country Link
US (1) US6744310B2 (de)
EP (1) EP1244208B1 (de)
JP (1) JP2002280843A (de)
DE (1) DE60216839T2 (de)

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KR100502415B1 (ko) * 2002-12-10 2005-07-19 삼성전자주식회사 보호 회로를 갖는 클래스 디이 파워 앰프
DE602004013940D1 (de) * 2003-03-21 2008-07-03 D2Audio Corp Systeme und verfahren zum schutz von audioverstärkerschaltungen
US7706545B2 (en) 2003-03-21 2010-04-27 D2Audio Corporation Systems and methods for protection of audio amplifier circuits
US7929718B1 (en) 2003-05-12 2011-04-19 D2Audio Corporation Systems and methods for switching and mixing signals in a multi-channel amplifier
JP4678134B2 (ja) * 2004-03-19 2011-04-27 日本電気株式会社 ディスプレイ焼付防止装置およびディスプレイ
EP1583230A1 (de) * 2004-03-31 2005-10-05 Thomson Licensing Schaltungsanordnung zum Steuern einer Kühlvorrichtung
WO2005109631A1 (en) * 2004-05-10 2005-11-17 Koninklijke Philips Electronics N.V. Overcurrent limiting method and device
KR100657860B1 (ko) 2004-05-17 2006-12-14 삼성전자주식회사 증폭기 및 증폭기의 과전류 검출 방법
US8125572B2 (en) * 2005-03-15 2012-02-28 Maxim Integrated Products, Inc. System and method for automatic power-up and power-down of an output video circuit
JP4629524B2 (ja) * 2005-07-21 2011-02-09 フォスター電機株式会社 Ｄ級アンプ
TWI285350B (en) * 2005-07-29 2007-08-11 Innolux Display Corp A liquid crystal display
US7259618B2 (en) * 2005-08-25 2007-08-21 D2Audio Corporation Systems and methods for load detection and correction in a digital amplifier
KR100788670B1 (ko) * 2005-11-03 2007-12-26 삼성전자주식회사 헤드폰에 최적화된 디지털 앰프의 출력 파워 제어 방법 및장치
JP2007189621A (ja) * 2006-01-16 2007-07-26 Kenwood Corp 増幅装置および増幅方法
JP4815645B2 (ja) * 2006-02-28 2011-11-16 オンキヨー株式会社 電子回路および増幅装置
JP2007235526A (ja) * 2006-03-01 2007-09-13 Matsushita Electric Ind Co Ltd パルス変調型電力増幅器
EP1995872A1 (de) * 2007-05-23 2008-11-26 Harman Becker Automotive Systems GmbH Testschaltung für eine Lastimpedanz
GB2456005B (en) * 2007-12-28 2013-03-06 Wolfson Ltd Amplifier circuit
EP2120485B1 (de) * 2008-04-28 2014-10-08 Harman Becker Automotive Systems GmbH Lasterkennung
TWM346801U (en) * 2008-05-09 2008-12-11 Princeton Technology Corp Testing device
US8558708B2 (en) 2010-02-09 2013-10-15 Innovalarm Corporation Supplemental alert generation device with speaker enclosure assembly
JP5370194B2 (ja) * 2010-02-10 2013-12-18 オンキヨー株式会社 増幅装置
TW201415913A (zh) * 2012-10-08 2014-04-16 Chi Mei Comm Systems Inc 揚聲器系統及其檢測方法
US9247365B1 (en) * 2013-02-14 2016-01-26 Google Inc. Impedance sensing for speaker characteristic information
JP6301592B2 (ja) * 2013-05-21 2018-03-28 矢崎エナジーシステム株式会社 故障検出装置
JP6454880B2 (ja) * 2014-07-24 2019-01-23 パナソニックＩｐマネジメント株式会社 送信制御装置およびそれを備える無線通信装置
JP6560032B2 (ja) * 2015-06-22 2019-08-14 ローム株式会社 半導体集積回路、オーディオアンプ回路、電子機器
US9825597B2 (en) 2015-12-30 2017-11-21 Skyworks Solutions, Inc. Impedance transformation circuit for amplifier
US10084416B2 (en) * 2016-03-25 2018-09-25 Skyworks Solutions, Inc. Apparatus and methods for overload protection of low noise amplifiers
US10062670B2 (en) 2016-04-18 2018-08-28 Skyworks Solutions, Inc. Radio frequency system-in-package with stacked clocking crystal
US10211795B2 (en) 2016-07-21 2019-02-19 Skyworks Solutions, Inc. Impedance transformation circuit and overload protection for low noise amplifier
US10340861B2 (en) 2016-11-18 2019-07-02 Skyworks Solutions, Inc. Apparatus and methods for low noise amplifiers
TWI692935B (zh) 2016-12-29 2020-05-01 美商天工方案公司 前端系統及相關裝置、積體電路、模組及方法
US10515924B2 (en) 2017-03-10 2019-12-24 Skyworks Solutions, Inc. Radio frequency modules
US10511270B2 (en) 2017-04-11 2019-12-17 Skyworks Solutions, Inc. Apparatus and methods for overload protection of radio frequency amplifiers
US20190215139A1 (en) * 2018-01-08 2019-07-11 Maxlinear, Inc. Digital CW Cancellation for High QAM For Point-to-Point FDD Systems
CN109634854B (zh) * 2018-12-04 2022-03-15 北京广利核系统工程有限公司 一种检测软件工程算法组态异常的方法
IT201900015144A1 (it) 2019-08-28 2021-02-28 St Microelectronics Srl Procedimento per monitorare carichi elettrici, circuito, amplificatore e sistema audio corrispondenti
US11644521B1 (en) 2021-11-09 2023-05-09 Cirrus Logic, Inc. Circuitry for compensating for gain and/or phase mismatch between voltage and current monitoring paths
WO2023084180A1 (en) * 2021-11-09 2023-05-19 Cirrus Logic International Semiconductor Limited Circuitry for compensating for gain and/or phase mismatch between voltage and current monitoring paths

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165493A (en) * 1978-04-17 1979-08-21 Rockwell International Corporation Protected amplifier apparatus
US4186437A (en) 1978-05-03 1980-01-29 California Institute Of Technology Push-pull switching power amplifier
US4439741A (en) * 1982-06-28 1984-03-27 Motorola, Inc. Stabilized high efficiency radio frequency amplifier
US4547746A (en) * 1984-04-09 1985-10-15 Rockwell International Corporation VSWR Tolerant linear power amplifier
US4727874A (en) 1984-09-10 1988-03-01 C. R. Bard, Inc. Electrosurgical generator with high-frequency pulse width modulated feedback power control
US5196808A (en) 1991-12-02 1993-03-23 Motorola, Inc. RF amplifier protector and method
JP3180424B2 (ja) * 1992-03-11 2001-06-25 ソニー株式会社 出力制御回路
US5719526A (en) 1994-11-09 1998-02-17 Crest Audio, Inc. Internal load monitor for amplifier
US5532649A (en) * 1995-01-03 1996-07-02 Sahyoun; Youssef Y. Speaker resistance sensing and power limit setting circuit
US6108182A (en) * 1998-10-30 2000-08-22 Intersil Corporation Overcurrent sensing circuit and self adjusting blanking

Also Published As

Publication number Publication date
EP1244208A1 (de) 2002-09-25
DE60216839T2 (de) 2007-08-30
JP2002280843A (ja) 2002-09-27
US6744310B2 (en) 2004-06-01
US20020149424A1 (en) 2002-10-17
EP1244208B1 (de) 2006-12-20

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee