DE602005009317D1 - Schaltung und Verfahren zum Überwachen der Temperatur einer Leuchtdiode - Google Patents

Schaltung und Verfahren zum Überwachen der Temperatur einer Leuchtdiode

Info

Publication number
DE602005009317D1
DE602005009317D1 DE602005009317T DE602005009317T DE602005009317D1 DE 602005009317 D1 DE602005009317 D1 DE 602005009317D1 DE 602005009317 T DE602005009317 T DE 602005009317T DE 602005009317 T DE602005009317 T DE 602005009317T DE 602005009317 D1 DE602005009317 D1 DE 602005009317D1
Authority
DE
Germany
Prior art keywords
light emitting
emitting diode
temperature
constant
monitoring
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
DE602005009317T
Other languages
German (de)
English (en)
Inventor
Gunnar Klinghult
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.)
Sony Mobile Communications AB
Original Assignee
Sony Ericsson Mobile Communications 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 Sony Ericsson Mobile Communications AB filed Critical Sony Ericsson Mobile Communications AB
Publication of DE602005009317D1 publication Critical patent/DE602005009317D1/de
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/20—Controlling the colour of the light
    • H05B45/22—Controlling the colour of the light using optical feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/10—Controlling the intensity of the light
    • H05B45/12—Controlling the intensity of the light using optical feedback
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/56—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving measures to prevent abnormal temperature of the LEDs
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/30—Driver circuits
    • H05B45/37—Converter circuits
    • H05B45/3725—Switched mode power supply [SMPS]
    • H05B45/38—Switched mode power supply [SMPS] using boost topology

Landscapes

  • Led Devices (AREA)
DE602005009317T 2005-03-08 2005-03-08 Schaltung und Verfahren zum Überwachen der Temperatur einer Leuchtdiode Expired - Fee Related DE602005009317D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05005054A EP1701589B1 (fr) 2005-03-08 2005-03-08 Circuit et procédé pour surveiller la température d'une diode électroluminescente

Publications (1)

Publication Number Publication Date
DE602005009317D1 true DE602005009317D1 (de) 2008-10-09

Family

ID=34934130

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602005009317T Expired - Fee Related DE602005009317D1 (de) 2005-03-08 2005-03-08 Schaltung und Verfahren zum Überwachen der Temperatur einer Leuchtdiode

Country Status (3)

Country Link
EP (1) EP1701589B1 (fr)
AT (1) ATE406783T1 (fr)
DE (1) DE602005009317D1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006033233A1 (de) * 2006-07-18 2008-01-24 Austriamicrosystems Ag Verfahren und Schaltungsanordnung zum Betrieb einer Leuchtdiode
WO2008129453A1 (fr) 2007-04-20 2008-10-30 Koninklijke Philips Electronics N.V. Dispositif d'éclairage avec une del utilisée pour une détection
US7822086B2 (en) * 2007-07-27 2010-10-26 Microvision, Inc. Laser projection temperature compensation
US9326346B2 (en) 2009-01-13 2016-04-26 Terralux, Inc. Method and device for remote sensing and control of LED lights
US8358085B2 (en) 2009-01-13 2013-01-22 Terralux, Inc. Method and device for remote sensing and control of LED lights
EP3032921A1 (fr) 2009-11-17 2016-06-15 Terralux, Inc. Détection et commande d'alimentation à del
JP2013543216A (ja) 2010-09-16 2013-11-28 テララックス， インコーポレイテッド 電力バスを介した照明ユニットとの通信
US9596738B2 (en) 2010-09-16 2017-03-14 Terralux, Inc. Communication with lighting units over a power bus
US8896231B2 (en) 2011-12-16 2014-11-25 Terralux, Inc. Systems and methods of applying bleed circuits in LED lamps
US8664865B2 (en) 2012-03-27 2014-03-04 General Electric Company Lighting system having an OLED light sensor
US9265119B2 (en) 2013-06-17 2016-02-16 Terralux, Inc. Systems and methods for providing thermal fold-back to LED lights
CN105844826B (zh) * 2016-04-25 2017-11-21 成都益英光电科技有限公司 利用二极管发光体的测物系统及其检测方法
CN105701938B (zh) * 2016-04-25 2018-01-02 成都益英光电科技有限公司 多二极管发光体的测物测向系统及其检测方法
CN105701940B (zh) * 2016-04-25 2017-11-21 成都益英光电科技有限公司 能判别物体运动方向的测物系统及其判别方法
CN114253048B (zh) 2017-07-21 2024-08-27 亮锐控股有限公司 控制分段闪光灯系统的方法
JP7440287B2 (ja) * 2020-02-05 2024-02-28 アズビル株式会社 測定装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200517A (nl) * 1982-02-11 1983-09-01 Tno Instelschakeling voor licht-emitterende diode met temperatuurcompensatie.
JPH01257383A (ja) * 1988-03-01 1989-10-13 Matsushita Electric Ind Co Ltd 半導体レーザ駆動回路
GB2224374A (en) * 1988-08-24 1990-05-02 Plessey Co Plc Temperature control of light-emitting devices
JPH0689453A (ja) * 1992-09-09 1994-03-29 Sony Corp 光ディスク記録装置
GB2288907A (en) * 1994-04-27 1995-11-01 Thomson Consumer Electronics Combined light emitting diode and photodiode
JPH08128953A (ja) * 1994-10-28 1996-05-21 Shimadzu Corp オイル劣化度検出装置
US20040052076A1 (en) * 1997-08-26 2004-03-18 Mueller George G. Controlled lighting methods and apparatus
WO1999040559A2 (fr) * 1998-02-06 1999-08-12 Koninklijke Philips Electronics N.V. Dispositif electroluminescent organique
DE19912463A1 (de) * 1999-03-19 2000-09-28 Sensor Line Ges Fuer Optoelekt Verfahren zur Stabilisierung der optischen Ausgangsleistung von Leuchtdioden und Laserdioden
DE19917239A1 (de) * 1999-04-16 2000-10-26 Hella Kg Hueck & Co Verfahren zur Ermittlung von Korrekturfaktoren zur Kompensation der Temperaturdrift der Strahlstärke einer LED
US6724158B1 (en) * 2002-10-28 2004-04-20 Honeywell International Inc. Power linearization technique for controlling the luminance of light emitting display devices

Also Published As

Publication number Publication date
EP1701589A1 (fr) 2006-09-13
ATE406783T1 (de) 2008-09-15
EP1701589B1 (fr) 2008-08-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee