SE9701521D0 - Power amplifier and method therein - Google Patents

Power amplifier and method therein

Info

Publication number
SE9701521D0
SE9701521D0 SE9701521A SE9701521A SE9701521D0 SE 9701521 D0 SE9701521 D0 SE 9701521D0 SE 9701521 A SE9701521 A SE 9701521A SE 9701521 A SE9701521 A SE 9701521A SE 9701521 D0 SE9701521 D0 SE 9701521D0
Authority
SE
Sweden
Prior art keywords
transistor
input signal
signal
module
input
Prior art date
Application number
SE9701521A
Other languages
English (en)
Other versions
SE511959C2 (sv
SE9701521L (sv
Inventor
Thomas Jan Peter Nordwall
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Priority to SE9701521A priority Critical patent/SE511959C2/sv
Publication of SE9701521D0 publication Critical patent/SE9701521D0/sv
Priority to CN98804374A priority patent/CN1113454C/zh
Priority to BR9808611-1A priority patent/BR9808611A/pt
Priority to CA002287264A priority patent/CA2287264A1/en
Priority to JP54557598A priority patent/JP2001521709A/ja
Priority to EP98917849A priority patent/EP0983631B1/en
Priority to AU70900/98A priority patent/AU734808B2/en
Priority to PCT/SE1998/000618 priority patent/WO1998048509A2/en
Priority to IDW991257A priority patent/ID23901A/id
Priority to RU99124570/09A priority patent/RU2168262C1/ru
Priority to KR1019997009417A priority patent/KR20010006332A/ko
Priority to EEP199900468A priority patent/EE9900468A/xx
Priority to IL13224698A priority patent/IL132246A/xx
Priority to DE69824846T priority patent/DE69824846T2/de
Priority to US09/063,273 priority patent/US6014059A/en
Publication of SE9701521L publication Critical patent/SE9701521L/sv
Priority to NO19995112A priority patent/NO315139B1/no
Publication of SE511959C2 publication Critical patent/SE511959C2/sv
Priority to HK00106827A priority patent/HK1027917A1/xx

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)
SE9701521A 1997-04-21 1997-04-21 Effektförstärkarkrets och metod för att styra en transistors temperatur i en effektförstärkarkrets SE511959C2 (sv)

Priority Applications (17)

Application Number Priority Date Filing Date Title
SE9701521A SE511959C2 (sv) 1997-04-21 1997-04-21 Effektförstärkarkrets och metod för att styra en transistors temperatur i en effektförstärkarkrets
DE69824846T DE69824846T2 (de) 1997-04-21 1998-04-03 Leistungsverstärker und verfahren zur verwendung
IDW991257A ID23901A (id) 1997-04-21 1998-04-03 Amplifier daya dan metodenya
KR1019997009417A KR20010006332A (ko) 1997-04-21 1998-04-03 전력 증폭기 및 그 온도 제어 방법
CA002287264A CA2287264A1 (en) 1997-04-21 1998-04-03 Power amplifier and method therein
JP54557598A JP2001521709A (ja) 1997-04-21 1998-04-03 電力増幅器およびその方法
EP98917849A EP0983631B1 (en) 1997-04-21 1998-04-03 Power amplifier and method therein
AU70900/98A AU734808B2 (en) 1997-04-21 1998-04-03 Power amplifier and method therein
PCT/SE1998/000618 WO1998048509A2 (en) 1997-04-21 1998-04-03 Power amplifier and method for temperature control therein
CN98804374A CN1113454C (zh) 1997-04-21 1998-04-03 功率放大器及功率放大器中的控制方法
RU99124570/09A RU2168262C1 (ru) 1997-04-21 1998-04-03 Усилитель мощности и способ, реализованный в нем
BR9808611-1A BR9808611A (pt) 1997-04-21 1998-04-03 Circuito amplificador de potência, e, processo de controle da temperatura de um transistor num circuito amplificador de potência.
EEP199900468A EE9900468A (et) 1997-04-21 1998-04-03 Võimsusvõimendi ja selles kasutatav meetod
IL13224698A IL132246A (en) 1997-04-21 1998-04-03 Power amplifier and method for temperature control therein
US09/063,273 US6014059A (en) 1997-04-21 1998-04-21 Power amplifier and method therein
NO19995112A NO315139B1 (no) 1997-04-21 1999-10-20 Effektforsterker samt fremgangsmåte for å kontrollere temperaturen i denne
HK00106827A HK1027917A1 (en) 1997-04-21 2000-10-26 Power amplifier and method therein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9701521A SE511959C2 (sv) 1997-04-21 1997-04-21 Effektförstärkarkrets och metod för att styra en transistors temperatur i en effektförstärkarkrets

Publications (3)

Publication Number Publication Date
SE9701521D0 true SE9701521D0 (sv) 1997-04-21
SE9701521L SE9701521L (sv) 1998-10-22
SE511959C2 SE511959C2 (sv) 1999-12-20

Family

ID=20406691

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9701521A SE511959C2 (sv) 1997-04-21 1997-04-21 Effektförstärkarkrets och metod för att styra en transistors temperatur i en effektförstärkarkrets

Country Status (17)

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

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
JP2009510823A (ja) * 2005-09-26 2009-03-12 エヌエックスピー ビー ヴィ 増幅器出力段と過電流検出機構とを有する電子装置
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
US6014059A (en) 2000-01-11
JP2001521709A (ja) 2001-11-06
CN1252904A (zh) 2000-05-10
EE9900468A (et) 2000-06-15
DE69824846D1 (de) 2004-08-05
EP0983631A1 (en) 2000-03-08
SE511959C2 (sv) 1999-12-20
NO995112D0 (no) 1999-10-20
BR9808611A (pt) 2000-05-23
SE9701521L (sv) 1998-10-22
AU7090098A (en) 1998-11-13
HK1027917A1 (en) 2001-01-23
KR20010006332A (ko) 2001-01-26
AU734808B2 (en) 2001-06-21
WO1998048509A3 (en) 1999-01-28
IL132246A0 (en) 2001-03-19
DE69824846T2 (de) 2005-07-07
CN1113454C (zh) 2003-07-02
ID23901A (id) 2000-05-25
RU2168262C1 (ru) 2001-05-27
IL132246A (en) 2003-09-17
EP0983631B1 (en) 2004-06-30
NO315139B1 (no) 2003-07-14
WO1998048509A2 (en) 1998-10-29
NO995112L (no) 1999-12-20
CA2287264A1 (en) 1998-10-29

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