DE69925092D1 - Arrangement for monitoring a lighting device or a signaling device with a plurality of light sources of the LED type - Google Patents

Arrangement for monitoring a lighting device or a signaling device with a plurality of light sources of the LED type

Info

Publication number
DE69925092D1
DE69925092D1 DE69925092T DE69925092T DE69925092D1 DE 69925092 D1 DE69925092 D1 DE 69925092D1 DE 69925092 T DE69925092 T DE 69925092T DE 69925092 T DE69925092 T DE 69925092T DE 69925092 D1 DE69925092 D1 DE 69925092D1
Authority
DE
Germany
Prior art keywords
monitoring
arrangement
light sources
led type
lighting device
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
DE69925092T
Other languages
German (de)
Other versions
DE69925092T2 (en
Inventor
Paolo Redi
Lorenzo Lori
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.)
S E I SISTEMI ENERGETICI INTEG
Original Assignee
S E I SISTEMI ENERGETICI INTEG
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 S E I SISTEMI ENERGETICI INTEG filed Critical S E I SISTEMI ENERGETICI INTEG
Application granted granted Critical
Publication of DE69925092D1 publication Critical patent/DE69925092D1/en
Publication of DE69925092T2 publication Critical patent/DE69925092T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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]
    • H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
    • H05B45/58—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits involving end of life detection of 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/20—Responsive to malfunctions or to light source life; for protection
    • H05B47/23—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in series
DE69925092T 1998-12-04 1999-10-11 Arrangement for monitoring a lighting device or a signaling device with a plurality of light sources of the LED type Expired - Fee Related DE69925092T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1998FI000264A IT1305051B1 (en) 1998-12-04 1998-12-04 CONTROL SYSTEM OF A LIGHTING OR LIGHT SIGNALING SYSTEM WITH A MULTIPLICITY OF LED LIGHT POINTS OR SIMILAR
ITFI980264 1998-12-04

Publications (2)

Publication Number Publication Date
DE69925092D1 true DE69925092D1 (en) 2005-06-09
DE69925092T2 DE69925092T2 (en) 2006-01-26

Family

ID=11352723

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69925092T Expired - Fee Related DE69925092T2 (en) 1998-12-04 1999-10-11 Arrangement for monitoring a lighting device or a signaling device with a plurality of light sources of the LED type

Country Status (4)

Country Link
EP (1) EP1006759B1 (en)
DE (1) DE69925092T2 (en)
ES (1) ES2248977T3 (en)
IT (1) IT1305051B1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003219642A1 (en) * 2002-02-08 2003-09-02 Ortana Elektronik Yazilim Taahhut Sanayi Ve Ticaret Ltd. Sti. Smart led traffic lamp
GB0402974D0 (en) 2004-02-11 2004-03-17 Bhagat Peter Apparatus for the control of lighting and associated methods
ITRM20040448A1 (en) * 2004-09-22 2004-12-22 Tecnologie Meccaniche S R L POWER SUPPLY AND FAULT DETECTION INTERFACE FOR AN LED OPTICAL SIGNALER, IN PARTICULAR FOR ADAPTATION TO RAILWAY POWER NETWORKS.
JP4926784B2 (en) * 2007-03-29 2012-05-09 株式会社小糸製作所 Light emitting device
CN102033174A (en) * 2010-09-30 2011-04-27 中国铁路通信信号上海工程集团有限公司 Indicator as well as fault diagnosis system and method thereof
US8607106B2 (en) 2010-10-25 2013-12-10 Himax Analogic, Inc. Channel detection device
KR20120083005A (en) * 2011-01-17 2012-07-25 삼성전자주식회사 Apparatus and method for sensing fail
TWI607673B (en) 2017-03-21 2017-12-01 聚積科技股份有限公司 Failure detection system and method
TWI625532B (en) 2017-03-21 2018-06-01 Failure detection system and method
US10187955B2 (en) * 2017-06-09 2019-01-22 Infineon Technologies Ag Detection of single short-LED in LED chains
DE102019208132A1 (en) * 2019-06-04 2020-12-10 Heraeus Noblelight Gmbh ARRANGEMENT WITH LIGHTING DEVICE AND MEASURING DEVICE, INCLUDING AN ELECTRICAL MEASURING CIRCUIT AND A SELECTION CIRCUIT

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5359325A (en) * 1991-10-03 1994-10-25 Cooper Industries, Inc. Automatic monitoring system for airfield lighting systems
IT1256123B (en) * 1992-07-22 1995-11-29 AUTOMATIC LIGHTS CONTROL SYSTEM OF A SERIES CIRCUIT LIGHTING SYSTEM, IN PARTICULAR FOR AIRPORT SIGNAL LAMPS.
US5457450A (en) * 1993-04-29 1995-10-10 R & M Deese Inc. LED traffic signal light with automatic low-line voltage compensating circuit
JP2991893B2 (en) * 1993-05-31 1999-12-20 富士通株式会社 Driving circuit for light emitting element and optical amplification repeater using the same
FR2724749A1 (en) * 1994-09-15 1996-03-22 Sofrela Sa LED lamps with integral controller for road traffic control signals
RU2127030C1 (en) * 1996-09-26 1999-02-27 Андреев Денис Вадимович System for checking multiple lamps
GB9708861D0 (en) * 1997-04-30 1997-06-25 Signal House Limited Traffic signals

Also Published As

Publication number Publication date
DE69925092T2 (en) 2006-01-26
ITFI980264A1 (en) 2000-06-05
EP1006759B1 (en) 2005-05-04
ES2248977T3 (en) 2006-03-16
EP1006759A2 (en) 2000-06-07
IT1305051B1 (en) 2001-04-10
EP1006759A3 (en) 2003-04-23
ITFI980264A0 (en) 1998-12-04

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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