DE59004777D1 - Main / secondary thread switch for AC-fed double-filament lamps in traffic signal systems. - Google Patents

Main / secondary thread switch for AC-fed double-filament lamps in traffic signal systems.

Info

Publication number
DE59004777D1
DE59004777D1 DE90123330T DE59004777T DE59004777D1 DE 59004777 D1 DE59004777 D1 DE 59004777D1 DE 90123330 T DE90123330 T DE 90123330T DE 59004777 T DE59004777 T DE 59004777T DE 59004777 D1 DE59004777 D1 DE 59004777D1
Authority
DE
Germany
Prior art keywords
switch
main
filament
switched
optocoupler
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
DE90123330T
Other languages
German (de)
Inventor
Hellmuth Fricke
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
Priority to DE90123330T priority Critical patent/DE59004777D1/en
Application granted granted Critical
Publication of DE59004777D1 publication Critical patent/DE59004777D1/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
    • 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

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Keying Circuit Devices (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

AC switches (TRH, TRN) are connected in both the main and standby filament circuit of a signalling lamp (L). As long as the main filament (HF) is switched on and is intact, the main filament AC switch (TRH) is switched through via input diodes, connected in reverse-parallel, of an optocoupler (U1). When current is flowing through the input diodes, the photo-transistor of this optocoupler controls a switch (S1) which is used, in this switching state, to switch off the input diode of an electro-optical AC switch (U2). If the main filament (HF) burns out and the switch (S1) is driven into the other position, the electro-optically controlled AC switch (U2) is switched through and, for its part, switches the standby filament AC switch (TRN) through. The feedback report on the operating state of the signal lamp to the control mechanism takes place via the optocoupler (U3). The main/standby filament switch is constructed using only a few, proven electronic components. It is used especially in railway signalling lights. <IMAGE>
DE90123330T 1989-12-14 1990-12-05 Main / secondary thread switch for AC-fed double-filament lamps in traffic signal systems. Expired - Fee Related DE59004777D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE90123330T DE59004777D1 (en) 1989-12-14 1990-12-05 Main / secondary thread switch for AC-fed double-filament lamps in traffic signal systems.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3941328A DE3941328A1 (en) 1989-12-14 1989-12-14 MAIN / ADDITIONAL THREAD SWITCH FOR AC POWERED DOUBLE THREAD LAMPS IN TRAFFIC SIGNALS
DE90123330T DE59004777D1 (en) 1989-12-14 1990-12-05 Main / secondary thread switch for AC-fed double-filament lamps in traffic signal systems.

Publications (1)

Publication Number Publication Date
DE59004777D1 true DE59004777D1 (en) 1994-04-07

Family

ID=6395470

Family Applications (2)

Application Number Title Priority Date Filing Date
DE3941328A Withdrawn DE3941328A1 (en) 1989-12-14 1989-12-14 MAIN / ADDITIONAL THREAD SWITCH FOR AC POWERED DOUBLE THREAD LAMPS IN TRAFFIC SIGNALS
DE90123330T Expired - Fee Related DE59004777D1 (en) 1989-12-14 1990-12-05 Main / secondary thread switch for AC-fed double-filament lamps in traffic signal systems.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE3941328A Withdrawn DE3941328A1 (en) 1989-12-14 1989-12-14 MAIN / ADDITIONAL THREAD SWITCH FOR AC POWERED DOUBLE THREAD LAMPS IN TRAFFIC SIGNALS

Country Status (6)

Country Link
EP (1) EP0432624B1 (en)
AT (1) ATE102427T1 (en)
DE (2) DE3941328A1 (en)
DK (1) DK0432624T3 (en)
ES (1) ES2051443T3 (en)
FI (1) FI97676C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120893C2 (en) * 1991-06-25 2000-06-15 Bayerische Motoren Werke Ag Lighting device for motor vehicles
DE19606896C2 (en) * 1996-02-13 2001-04-05 Siemens Ag Circuit for setting and monitoring light signals
KR100468890B1 (en) * 2002-11-01 2005-01-29 한국철도기술연구원 Control System for Pair Type 3 Light 3 State Display Signal Lamp of Rail Road
RU2493605C1 (en) * 2012-02-17 2013-09-20 Евгений Александрович Оленев Method for operation of lens traffic light with double-filament lamp and apparatus for realising said method
CN114202904A (en) * 2022-02-18 2022-03-18 山东冠嘉智能设备有限公司 Power failure alarm device of automatic packaging machine

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
EP0432624B1 (en) 1994-03-02
DK0432624T3 (en) 1994-06-13
FI906154A (en) 1991-06-15
DE3941328A1 (en) 1991-06-20
ATE102427T1 (en) 1994-03-15
FI906154A0 (en) 1990-12-13
ES2051443T3 (en) 1994-06-16
EP0432624A1 (en) 1991-06-19
FI97676B (en) 1996-10-15
FI97676C (en) 1997-01-27

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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