DE69824846D1 - Leistungsverstärker und verfahren zur verwendung - Google Patents

Leistungsverstärker und verfahren zur verwendung

Info

Publication number
DE69824846D1
DE69824846D1 DE69824846T DE69824846T DE69824846D1 DE 69824846 D1 DE69824846 D1 DE 69824846D1 DE 69824846 T DE69824846 T DE 69824846T DE 69824846 T DE69824846 T DE 69824846T DE 69824846 D1 DE69824846 D1 DE 69824846D1
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 - Lifetime
Application number
DE69824846T
Other languages
English (en)
Other versions
DE69824846T2 (de
Inventor
Jan Nordwall
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of DE69824846D1 publication Critical patent/DE69824846D1/de
Publication of DE69824846T2 publication Critical patent/DE69824846T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H03F1/302—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters in bipolar transistor 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
DE69824846T 1997-04-21 1998-04-03 Leistungsverstärker und verfahren zur verwendung Expired - Lifetime DE69824846T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9701521 1997-04-21
SE9701521A SE511959C2 (sv) 1997-04-21 1997-04-21 Effektförstärkarkrets och metod för att styra en transistors temperatur i en effektförstärkarkrets
PCT/SE1998/000618 WO1998048509A2 (en) 1997-04-21 1998-04-03 Power amplifier and method for temperature control therein

Publications (2)

Publication Number Publication Date
DE69824846D1 true DE69824846D1 (de) 2004-08-05
DE69824846T2 DE69824846T2 (de) 2005-07-07

Family

ID=20406691

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69824846T Expired - Lifetime DE69824846T2 (de) 1997-04-21 1998-04-03 Leistungsverstärker und verfahren zur verwendung

Country Status (17)

Country Link
US (1) US6014059A (de)
EP (1) EP0983631B1 (de)
JP (1) JP2001521709A (de)
KR (1) KR20010006332A (de)
CN (1) CN1113454C (de)
AU (1) AU734808B2 (de)
BR (1) BR9808611A (de)
CA (1) CA2287264A1 (de)
DE (1) DE69824846T2 (de)
EE (1) EE9900468A (de)
HK (1) HK1027917A1 (de)
ID (1) ID23901A (de)
IL (1) IL132246A (de)
NO (1) NO315139B1 (de)
RU (1) RU2168262C1 (de)
SE (1) SE511959C2 (de)
WO (1) WO1998048509A2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6201873B1 (en) * 1998-06-08 2001-03-13 Nortel Networks Limited Loudspeaker-dependent audio compression
KR20020047341A (ko) * 2000-12-13 2002-06-22 구자홍 파워앰프의 온도 보상 회로
DE10120524B4 (de) * 2001-04-26 2015-08-20 Infineon Technologies Ag Vorrichtung zur Ermittlung des Stromes durch ein Leistungs-Halbleiterbauelement
US6621351B2 (en) * 2001-08-23 2003-09-16 Motorola, Inc. RF amplifier and method therefor
US6927626B2 (en) * 2002-09-23 2005-08-09 Harman International Industries, Incorporated Thermal protection system for an output stage of an amplifier
JP2006287847A (ja) * 2005-04-05 2006-10-19 Roland Corp 過熱防止装置
ATE488910T1 (de) 2005-09-26 2010-12-15 Nxp Bv Elektronische vorrichtung mit einer verstärkerausgangsbühne und einem überstromerkennungsmittel
JP4484858B2 (ja) * 2006-10-19 2010-06-16 日立ビークルエナジー株式会社 蓄電池管理装置およびそれを備える車両制御装置
JP2008244554A (ja) * 2007-03-26 2008-10-09 Toa Corp オーディオ装置の過電流保護回路
US20100188136A1 (en) * 2009-01-27 2010-07-29 Rockford Corporation Dynamic thermal management system and method
US8089313B2 (en) * 2009-10-19 2012-01-03 Industrial Technology Research Institute Power amplifier
US9054658B2 (en) * 2011-05-13 2015-06-09 Bose Corporation Power supply with rectifier protection
US8995521B2 (en) * 2012-10-30 2015-03-31 Lsi Corporation Method and apparatus for high density pulse density modulation
US9225290B2 (en) * 2013-11-26 2015-12-29 Microelectronics Technology, Inc. Radio frequency signal amplifying system
DE102017209072A1 (de) * 2017-05-30 2018-12-06 Robert Bosch Gmbh Verfahren zum Übertemperaturschutz und Audioeinrichtung
DE102020211746A1 (de) 2020-09-21 2022-03-24 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zum Anpassen einer Verlustleistung eines Audioverstärkers

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3480835A (en) * 1967-03-10 1969-11-25 Weston Instruments Inc Thermal rms limiter and semiconductor driving circuit means
US3864642A (en) * 1971-02-01 1975-02-04 Motorola Inc Second stage overload protection for amplifiers
US4042889A (en) * 1976-05-14 1977-08-16 Combustion Engineering, Inc. Overvoltage protection circuit for general purpose amplifier
DE2637270C2 (de) * 1976-08-19 1978-05-03 Standard Elektrik Lorenz Ag, 7000 Stuttgart Überlastungsschutzeinrichtung
US4321554A (en) * 1980-01-14 1982-03-23 Qsc Audio Products, Inc. Time-delayed, variable output current limiting means for power amplifiers
US4355287A (en) * 1980-09-30 1982-10-19 Rca Corporation Bridge amplifiers employing complementary field-effect transistors
FR2661053A1 (fr) * 1990-04-17 1991-10-18 Europ Agence Spatiale Procede de commande d'un dispositif de protection thermique d'un transistor de puissance, et systeme de mise en óoeuvre du procede.
GB9300669D0 (en) * 1993-01-14 1993-03-03 Marshall Amplification Plc Audio amplifier
US5524055A (en) * 1994-01-18 1996-06-04 Peavey Electronics Corporation Solid state circuit for emulating tube compression effect
AU2479595A (en) * 1994-05-10 1995-11-29 Ericsson Inc. Thermally controlled, linear power reduction circuit

Also Published As

Publication number Publication date
WO1998048509A3 (en) 1999-01-28
CA2287264A1 (en) 1998-10-29
EP0983631B1 (de) 2004-06-30
RU2168262C1 (ru) 2001-05-27
IL132246A (en) 2003-09-17
EP0983631A1 (de) 2000-03-08
EE9900468A (et) 2000-06-15
HK1027917A1 (en) 2001-01-23
NO995112D0 (no) 1999-10-20
SE511959C2 (sv) 1999-12-20
IL132246A0 (en) 2001-03-19
DE69824846T2 (de) 2005-07-07
AU7090098A (en) 1998-11-13
WO1998048509A2 (en) 1998-10-29
CN1113454C (zh) 2003-07-02
JP2001521709A (ja) 2001-11-06
NO315139B1 (no) 2003-07-14
BR9808611A (pt) 2000-05-23
ID23901A (id) 2000-05-25
SE9701521L (sv) 1998-10-22
KR20010006332A (ko) 2001-01-26
NO995112L (no) 1999-12-20
US6014059A (en) 2000-01-11
SE9701521D0 (sv) 1997-04-21
AU734808B2 (en) 2001-06-21
CN1252904A (zh) 2000-05-10

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition