AU2003229273A1 - Circuit for operating a light signal - Google Patents

Circuit for operating a light signal

Info

Publication number
AU2003229273A1
AU2003229273A1 AU2003229273A AU2003229273A AU2003229273A1 AU 2003229273 A1 AU2003229273 A1 AU 2003229273A1 AU 2003229273 A AU2003229273 A AU 2003229273A AU 2003229273 A AU2003229273 A AU 2003229273A AU 2003229273 A1 AU2003229273 A1 AU 2003229273A1
Authority
AU
Australia
Prior art keywords
operating
circuit
emitting diode
light emitting
light 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.)
Abandoned
Application number
AU2003229273A
Inventor
Jens Colberg
Dirk Zimmermann
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of AU2003229273A1 publication Critical patent/AU2003229273A1/en
Abandoned 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]
    • H05B45/40—Details of LED load circuits
    • 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
    • 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
    • H05B45/59—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits for reducing or suppressing flicker or glow effects
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

The invention relates to a circuit for operating a light signal, more particularly an LED signal, comprising at least one light emitting diode (L), to which a resistor (R1) is series connected and a control is parallel connected. In order to enhance the brightness of the light emitting diode (L) when alternating current is supplied, said light emitting diode (L) is interconnected in a Graetz rectifier bridge and the control has a serial connection with a resistor (R2) and a switch (S) to which a voltage divider (R3/R4) that impinges upon said switch (S) is parallel connected.
AU2003229273A 2002-05-08 2003-04-02 Circuit for operating a light signal Abandoned AU2003229273A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10221573A DE10221573B4 (en) 2002-05-08 2002-05-08 Circuit arrangement for operating a light sign
DE10221573.1 2002-05-08
PCT/DE2003/001117 WO2003096753A1 (en) 2002-05-08 2003-04-02 Circuit for operating a light signal

Publications (1)

Publication Number Publication Date
AU2003229273A1 true AU2003229273A1 (en) 2003-11-11

Family

ID=29413837

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003229273A Abandoned AU2003229273A1 (en) 2002-05-08 2003-04-02 Circuit for operating a light signal

Country Status (11)

Country Link
EP (1) EP1502481B1 (en)
AT (1) ATE397371T1 (en)
AU (1) AU2003229273A1 (en)
DE (2) DE10221573B4 (en)
DK (1) DK1502481T3 (en)
ES (1) ES2307930T3 (en)
MY (1) MY141628A (en)
NO (1) NO334288B1 (en)
PT (1) PT1502481E (en)
TW (1) TWI237805B (en)
WO (1) WO2003096753A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004027351B3 (en) * 2004-06-01 2006-01-19 Siemens Ag Circuit arrangement for operating an LED signal generator
EP1787886B1 (en) * 2005-11-18 2008-01-02 ALCATEL Transport Solution Deutschland GmbH Electrical circuit for an LED signal lamp with a switching threshold for switching between a daylight operation mode and a nighttime operation mode
CN101711066B (en) * 2009-12-23 2012-08-01 陕西西电科大华成电子股份有限公司 LED alternating current (AC) directly-powered circuit and power supply method
DE102012221972A1 (en) 2012-11-30 2014-06-18 Siemens Aktiengesellschaft Circuit arrangement for error disclosure in a light signal
EP2894389B1 (en) * 2014-01-14 2019-10-23 Siemens Mobility AG Replacement of incandescent lamps railway signals by light emitting diodes

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2304620A1 (en) * 1973-01-31 1974-08-15 Licentia Gmbh CIRCUIT FOR OPERATING A LUMINESCENT SEMI-CONDUCTOR COMPONENT ON AN AC MAINS
EP0456857B1 (en) * 1990-05-16 1994-11-09 Siemens Aktiengesellschaft Digital circuit with potential compensation between two signal conductors
WO1995012512A1 (en) * 1993-11-05 1995-05-11 Siemens Integra Verkehrstechnik Ag Circuit for emitting optical signals
DE19846753A1 (en) * 1998-10-07 2000-04-13 Siemens Ag Circuit arrangement for operating a light sign
DE19943256A1 (en) * 1999-09-10 2001-03-15 Hella Kg Hueck & Co Aircraft light unit control device has switched bypass unit in parallel with light unit for providing overvoltage protection

Also Published As

Publication number Publication date
WO2003096753A1 (en) 2003-11-20
DE10221573B4 (en) 2004-03-18
EP1502481B1 (en) 2008-05-28
MY141628A (en) 2010-05-31
DE50309919D1 (en) 2008-07-10
PT1502481E (en) 2008-09-05
ES2307930T3 (en) 2008-12-01
TW200306520A (en) 2003-11-16
DE10221573A1 (en) 2003-12-04
DK1502481T3 (en) 2008-09-29
NO334288B1 (en) 2014-01-27
EP1502481A1 (en) 2005-02-02
NO20045375L (en) 2004-12-08
TWI237805B (en) 2005-08-11
ATE397371T1 (en) 2008-06-15

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase
TH Corrigenda

Free format text: IN VOL 18, NO 2, PAGE(S) 584 UNDER THE HEADING APPLICATIONS OPI - NAME INDEX UNDER THE NAME SIEMENSAKTIENGESELLSCHAFT , APPLICATION NO. 2003229273 , UNDER INID (43) CORRECT THE PUBLICATION DATE TO READ 24.11.2003