EP1641325A3 - Feeding and failure detecting interface for a led optic signaller, particularly for interfacing to railway feeding networks - Google Patents

Feeding and failure detecting interface for a led optic signaller, particularly for interfacing to railway feeding networks Download PDF

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Publication number
EP1641325A3
EP1641325A3 EP05425659A EP05425659A EP1641325A3 EP 1641325 A3 EP1641325 A3 EP 1641325A3 EP 05425659 A EP05425659 A EP 05425659A EP 05425659 A EP05425659 A EP 05425659A EP 1641325 A3 EP1641325 A3 EP 1641325A3
Authority
EP
European Patent Office
Prior art keywords
led
feeding
signaller
cluster
signal
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.)
Withdrawn
Application number
EP05425659A
Other languages
German (de)
French (fr)
Other versions
EP1641325A2 (en
Inventor
Donello Assenza
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.)
TECNOLOGIE MECCANICHE Srl
Original Assignee
TECNOLOGIE MECCANICHE Srl
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 TECNOLOGIE MECCANICHE Srl filed Critical TECNOLOGIE MECCANICHE Srl
Publication of EP1641325A2 publication Critical patent/EP1641325A2/en
Publication of EP1641325A3 publication Critical patent/EP1641325A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1881—Wiring diagrams for power supply, control or testing
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L2207/00—Features of light signals
    • B61L2207/02—Features of light signals using light-emitting diodes [LEDs]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Audible And Visible Signals (AREA)
  • Train Traffic Observation, Control, And Security (AREA)

Abstract

The invention relates to a feeding and failure detecting interface for a LED optic signaller, particularly for interfacing to railway feeding networks, said optic signaller providing a plurality of LEDs (3) divided into LED (3) clusters (4), LEDs (3) of each cluster being serially connected each other, characterised in that it comprises for each LED (3) cluster (4) a corresponding current generator (5), serially connected with the relevant cluster, each LED (3) cluster (4) and the relevant generator (5) creating a branch, said branches being connected in parallel each other, in that said interface further comprises tension comparator means (6), an oscillator (7) and switching means (8), said switching means (8) being provided in series with respect to at least one branch, and said oscillator (7) generating a first signal suitable to control said switching means (8), and in that said comparator means compare potential of at least one node of the adjacent branch, so as to generate a second signal, suitable to control switch means (T, T'), said signal being proportional to said first signal, in case all LEDs (3) and the interface components are not in a failure mode, and it is a constant signal suitable to close or to open said switch means (T, T'), when at least one LED (3) or at least a component of said interface is in a failure mode.
EP05425659A 2004-09-22 2005-09-21 Feeding and failure detecting interface for a led optic signaller, particularly for interfacing to railway feeding networks Withdrawn EP1641325A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000448A ITRM20040448A1 (en) 2004-09-22 2004-09-22 POWER SUPPLY AND FAULT DETECTION INTERFACE FOR AN LED OPTICAL SIGNALER, IN PARTICULAR FOR ADAPTATION TO RAILWAY POWER NETWORKS.

Publications (2)

Publication Number Publication Date
EP1641325A2 EP1641325A2 (en) 2006-03-29
EP1641325A3 true EP1641325A3 (en) 2007-06-06

Family

ID=35520821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05425659A Withdrawn EP1641325A3 (en) 2004-09-22 2005-09-21 Feeding and failure detecting interface for a led optic signaller, particularly for interfacing to railway feeding networks

Country Status (2)

Country Link
EP (1) EP1641325A3 (en)
IT (1) ITRM20040448A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2432951B (en) * 2003-09-19 2008-02-20 Saf T Glo Ltd Improvements in or relating to onboard equipment for aircraft and the like
US7265684B2 (en) 2003-09-19 2007-09-04 Saf-T-Glo Limited Onboard equipment for aircraft and the like
US7876103B2 (en) * 2007-02-27 2011-01-25 GE Lighting Solutions, LLC LED chain failure detection
DE102007021836A1 (en) * 2007-05-07 2008-11-20 Pintsch Bamag Antriebs- Und Verkehrstechnik Gmbh LED arrangement for light signal transmitter, in particular for level crossings and light signal transmitter, in particular for level crossings with such an LED arrangement
WO2010015277A1 (en) * 2008-08-04 2010-02-11 Osram Gesellschaft mit beschränkter Haftung Multi-led lighting device
DE102015112403A1 (en) * 2014-07-29 2016-02-04 Pintsch Bamag Antriebs- Und Verkehrstechnik Gmbh Signaling device and circuit component of the signaling device
WO2017168565A1 (en) 2016-03-29 2017-10-05 三菱電機株式会社 Laser light source module, light source device, and method for specifying failure laser diode
CN110213852B (en) * 2019-04-16 2022-02-08 浙江友诚铁路设备科技有限公司 Cold wire inspection circuit of internal auxiliary filament LED light-emitting chip and control circuit in railway point type double-filament LED signal lighting device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006759A2 (en) * 1998-12-04 2000-06-07 S.E.I. Sistemi Energetici Integrati S.R.L. System for monitoring a lighting installation or light signaling equipment having a plurality of light points of the led or similar type
EP1286571A2 (en) * 2001-05-02 2003-02-26 Garufo GmbH Electronically secured power supply for a circuit group and display for variable information

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1006759A2 (en) * 1998-12-04 2000-06-07 S.E.I. Sistemi Energetici Integrati S.R.L. System for monitoring a lighting installation or light signaling equipment having a plurality of light points of the led or similar type
EP1286571A2 (en) * 2001-05-02 2003-02-26 Garufo GmbH Electronically secured power supply for a circuit group and display for variable information

Also Published As

Publication number Publication date
EP1641325A2 (en) 2006-03-29
ITRM20040448A1 (en) 2004-12-22

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