DK0432625T3 - Switch to the main and bit wires for AC double-wired lamps in traffic signaling systems - Google Patents

Switch to the main and bit wires for AC double-wired lamps in traffic signaling systems

Info

Publication number
DK0432625T3
DK0432625T3 DK90123331.2T DK90123331T DK0432625T3 DK 0432625 T3 DK0432625 T3 DK 0432625T3 DK 90123331 T DK90123331 T DK 90123331T DK 0432625 T3 DK0432625 T3 DK 0432625T3
Authority
DK
Denmark
Prior art keywords
switch
main
filament
light
emitting diode
Prior art date
Application number
DK90123331.2T
Other languages
Danish (da)
Inventor
Hellmuth Fricke
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
Application granted granted Critical
Publication of DK0432625T3 publication Critical patent/DK0432625T3/en

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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/097—Supervising of traffic control systems, e.g. by giving an alarm if two crossing streets have green light simultaneously
    • 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
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/10—Circuits providing for substitution of the light source in case of its failure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Audible And Visible Signals (AREA)
  • Power Conversion In General (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

The main/standby filament switch is controlled by a main filament monitor. The latter is constructed as an optocoupler (U1) which is coupled on the input side, e.g. in the form of a transformer (T2), to the main filament circuit. The switching transistor of the optocoupler is at a DC voltage and, when it is set, short-circuits a light-emitting diode, which is at a supply voltage, or separates its supply circuit. This light-emitting diode is the transmitting diode of an electro-optically controllable AC switch (U2), whose receiving diodes are connected via the standby filament (NF) of the lamp (L) to the supplying current supply device (T1). When current is flowing through the light-emitting diode, the AC switch switches through an AC switch (TR) arranged in the circuit of the standby filament. The main/standby filament switch has exclusively electronic switches for carrying out the switching processes required. <IMAGE>
DK90123331.2T 1989-12-14 1990-12-05 Switch to the main and bit wires for AC double-wired lamps in traffic signaling systems DK0432625T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8914703U DE8914703U1 (en) 1989-12-14 1989-12-14 Main/secondary filament switch for AC-powered double filament lamps in traffic signal systems

Publications (1)

Publication Number Publication Date
DK0432625T3 true DK0432625T3 (en) 1994-06-20

Family

ID=6845456

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90123331.2T DK0432625T3 (en) 1989-12-14 1990-12-05 Switch to the main and bit wires for AC double-wired lamps in traffic signaling systems

Country Status (6)

Country Link
EP (1) EP0432625B1 (en)
AT (1) ATE102780T1 (en)
DE (2) DE8914703U1 (en)
DK (1) DK0432625T3 (en)
ES (1) ES2051444T3 (en)
FI (1) FI97674C (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181792B (en) * 1963-06-29 1964-11-19 Pintsch Bamag Ag Monitoring circuit for main and secondary threads of incandescent lamps, especially signal lamps
DE1566901A1 (en) * 1967-03-21 1970-04-30 Licentia Gmbh Arrangement for monitoring signal lamps for thread breakage
NL178634C (en) * 1978-01-02 1986-04-16 Philips Nv DEVICE FOR DETECTING UNWANTED SIGNAL COMBINATIONS OF TWO SIGNAL LIGHTS IN TRAFFIC LIGHTS.
US4380718A (en) * 1981-05-22 1983-04-19 Kelsey-Hayes Co. Trailer marker light substitution circuit

Also Published As

Publication number Publication date
FI906150A (en) 1991-06-15
FI97674C (en) 1997-01-27
EP0432625B1 (en) 1994-03-09
FI97674B (en) 1996-10-15
DE59004905D1 (en) 1994-04-14
EP0432625A1 (en) 1991-06-19
DE8914703U1 (en) 1990-02-22
ES2051444T3 (en) 1994-06-16
ATE102780T1 (en) 1994-03-15
FI906150A0 (en) 1990-12-13

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