EP0432624B1 - Commutateur filament principal-filament de secours pour lampes à double filament alimentées en courant alternatif dans des installations de signalisation du trafic - Google Patents

Commutateur filament principal-filament de secours pour lampes à double filament alimentées en courant alternatif dans des installations de signalisation du trafic Download PDF

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Publication number
EP0432624B1
EP0432624B1 EP90123330A EP90123330A EP0432624B1 EP 0432624 B1 EP0432624 B1 EP 0432624B1 EP 90123330 A EP90123330 A EP 90123330A EP 90123330 A EP90123330 A EP 90123330A EP 0432624 B1 EP0432624 B1 EP 0432624B1
Authority
EP
European Patent Office
Prior art keywords
main
filament
switch
alternating current
change
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 - Lifetime
Application number
EP90123330A
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German (de)
English (en)
Other versions
EP0432624A1 (fr
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
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Priority to AT90123330T priority Critical patent/ATE102427T1/de
Publication of EP0432624A1 publication Critical patent/EP0432624A1/fr
Application granted granted Critical
Publication of EP0432624B1 publication Critical patent/EP0432624B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a main / secondary thread switch according to the preamble of claim 1.
  • a main / secondary thread switch is known from DE-PS 11 81 792.
  • the signal lamps used are regularly designed as double-filament lamps, of which one lamp thread, the so-called main thread, is usually switched on and off during operation. If the main thread burns out, the associated secondary thread is automatically switched on by a main thread monitor assigned to the relevant signal lamp, which then takes over the function of the defective main thread.
  • the main thread monitors are usually designed as current indicators, preferably relays, which are switched into the main thread circuit and which, with the switching means controlled by them, usually relay contacts, close the respective secondary thread circuit as soon as the main thread circuit is interrupted (DE-PS 35 16 612).
  • Fully electronic main / secondary thread switches are also known (DE-PS 11 81 792). There, separate indicators designed as current transformers are connected both in the main and in the secondary thread circuit of the signal lamp to be monitored. If the main thread is switched on intact, the main thread monitor switches high-impedance electronic switches connected to the secondary thread circuit so that the secondary thread cannot light up. If the main thread is defective, these switches are activated and the secondary thread is switched on, provided that the switches themselves and their actuation work properly. If the main / secondary thread switch malfunctions, it can happen that either the secondary thread is not switched on or that the secondary thread also lights up in addition to the main thread.
  • the object of the invention is to provide a fully electronic main / secondary thread switch according to the preamble of claim 1, which manages with as few inexpensive components that have been tried and tested in practice.
  • the drawing shows a signal lamp L designed as a double thread lamp with a main thread HF and a secondary thread NF, as is used for railway light signals.
  • the signal lamp is fed via the lines drawn thick in the drawing from a lamp transformer T1 arranged, for example, in the vicinity of the signal lamp, which, if necessary, is to be connected to voltage from the remote signal box and thereby supplies the lamp with lamp current.
  • the signal lamp is usually switched on via its main thread HF.
  • an electronic AC switch TRH lying in series with it must have closed the lamp circuit.
  • input diodes of a first optocoupler U1 which are fed antiparallel, are arranged in the control circuit of the main-thread AC switch TRH and are connected in parallel to the main-thread AC switch via resistors R1 and R2.
  • a control current flows through the resistor R2 and the light-emitting diodes to the control electrode of the main thread AC switch TRH and causes the latter to assume the low-resistance switching state.
  • the phototransistor of the optocoupler U1 switches a direct voltage generated by a rectifier G to the gate of an electronic direct current switch S1, which thereby assumes the conductive state.
  • the electronic switch bridges with its source-drain path, the transmission diodes of two optocouplers U2 and U3 connected in series.
  • the transmission diode of the optocoupler U2 is part of an optoelectronically controllable AC switch which is used to control an electronic AC switch TRN in the feed circuit of the auxiliary thread NF of the signal lamp. In the assumed operating state of the signal lamp, this AC switch is switched to high impedance and thus prevents the auxiliary thread from lighting up.
  • a corresponding detector must be connected in series either with the switching path of the electronic DC switch S1 or with the switching path of the first optocoupler switching transistor. Possibly. separate notifications are to be derived using separate detectors, both when the main thread and the secondary thread are switched on, and transmitted to the signal box.
  • the DC voltage required to operate the main / secondary thread switch can advantageously be tapped via the two-way rectifier G at the output terminals of the supplying lamp transformer.
  • the main and minor threads switching AC switches are preferably designed as triacs, the electronic DC switch as a field effect transistor.
  • the electronic switch S1 briefly switches the transmitter diode of the electronic alternating current switch U2 when the supply current flows over the main thread.
  • the arrangement can also be such that the switch in this case disconnects the supply circuit for the transmitter diode of the AC switch.
  • the switching transistor of the optocoupler U1 can also short-circuit the transmitting diode of the optoelectronically controllable AC switch U2 directly or open its supply circuit. Because of the ripple of the voltage supplied to the transmitter diodes of the optocoupler U1, a very low pulsating DC voltage will be able to be tapped at the switching path of the optocoupler switching transistor. In order to prevent the optoelectronically controllable AC switch U2 from turning on as a result of this DC voltage, a capacitor for smoothing this voltage must be connected in parallel with the switching path of the optocoupler transistor.
  • a zener diode is to be connected in series with the transmitter diode of the optoelectronically controllable AC switch U2, the zener voltage of which is at least equal to the voltage across the capacitor when the optocoupler switching transistor is controlled.
  • This Zener voltage is added to the forward voltage of the transmitter diode of the optoelectronically controllable AC switch and prevents the control of this switch when the main thread is illuminated.

Landscapes

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

Claims (9)

  1. Commutateur filament principal/filament secondaire pour des lampes à filament double alimentées en courant alternatif dans des installations de signalisation du trafic, notamment dans des signaux de chemins de fer, comportant un dispositif de contrôle du filament principal, qui est commandé par le courant de la lampe et qui est associé à chaque lampe (L) du signal pour le raccordement du filament secondaire (NF) lorsque le filament principal (HF) a fondu, caractérisé par le fait
    qu'un interrupteur électronique à courant alternatif (TRH ou TRN) est prévu respectivement aussi bien dans le circuit du filament principal que du filament secondaire dans la lampe, que dans le circuit de commande de l'interrupteur à courant alternatif (TRH) du filament principal est disposée au moins une diode émissive d'un premier optocoupleur (U1), qui est alimentée par l'intermédiaire du filament principal (HF) par le dispositif d'alimentation en courant (T1) et qui, lorsqu'elle est parcourue par un courant, rend passant l'interrupteur à courant alternatif (TRH) du filament principal,
    que le transistor de commutation de ce premier optocoupleur (U1) est raccordé à une tension continue et, dans le cas où la diode photoémissive est parcourue par un courant, court-circuite directement ou indirectement au moins une diode à luminescence raccordée à une tension d'alimentation ou coupe son circuit d'alimentation,
    que cette diode à luminescence est la diode émissive d'un interrupteur à courant alternatif (U2), qui peut être commandée par voie optoélectronique et dont les diodes de réception sont raccordées par l'intermédiaire du filament secondaire (NH) de la lampe du signal, au dispositif d'alimentation en courant (T1), qui réalise l'alimentation, et rend passant l'interrupteur électronique à courant alternatif (TRN), qui est monté dans le circuit d'alimentation du filament secondaire, lorsque la diode émissive est parcourue par un courant.
  2. Commutateur filament principal/filament secondaire suivant la revendication 1, caractérisé par le fait que le premier optocoupleur (U1) est raccordé du côté entrée, par l'intermédiaire du filament principal (HF) de la lampe (L) du signal, au dispositif d'alimentation en courant (T1) de cette lampe et comporte deux diodes émissives branchées selon un montage antiparallèle.
  3. Commutateur filament principal/filament secondaire suivant la revendication 1, caractérisé par le fait qu'à l'état réglé, le transistor de commutation du premier optocoupleur (U1) règle un interrupteur électronique (S1) pour le court-circuitage au moins d'une diode émissive de l'interrupteur de courant alternatif (U2) commandable par voie optoélectronique.
  4. Commutateur filament principal/filament secondaire suivant la revendication 3, caractérisé par le fait qu'un condensateur est branché en parallèle avec la section de commande du transistor de commutation du premier optocoupleur (U1).
  5. Commutateur filament principal/filament secondaire suivant la revendication 3 ou 4, caractérisé par le fait qu'en série avec au moins une diode émissive du commutateur de courant alternatif (U2) commandable par voie optoélectronique, est branchée une diode Zener, dont la tension de Zener est au moins égale à la tension qui s'établit dans la section de commande du transistor de commutation réglé du premier optocoupleur (U1) ou aux bornes du condensateur.
  6. Commutateur filament principal/filament secondaire suivant la revendication 1 ou 3, caractérisé par le fait qu'en série avec au moins une diode émissive du commutateur à courant alternatif (U2) commandable par voie optoélectrique, avec la section de commande de l'interrupteur électronique (S1) et/ou avec la section de commande du premier transistor de commutation de l'optocoupleur, est branchée la diode émissive d'un autre optocoupleur (U3), dont le transistor de commutation sert à déclencher une signalisation de contrôle.
  7. Commutateur filament principal/filament secondaire suivant la revendication 3, caractérisé par le fait que l'interrupteur électronique (S1) est réalisé sous la forme d'un transistor à effet de champ.
  8. Commutateur filament principal/filament secondaire suivant l'une des revendications 1 à 7, caractérisé par le fait que la tension d'alimentation pour le fonctionnement des composants à courant continu du commutateur filament principal/filament secondaire peut être prélevée sur un redresseur (G), qui est raccordé, côté entrée, à un transformateur (T1) de la lampe (L), qui alimente cette dernière.
  9. Commutateur filament principal/filament secondaire suivant la revendication 1, caractérisé par le fait que les commutateurs électroniques à courant alternatif (TRH ou TRN) du filament principal et du filament secondaire sont réalisés sous la forme de triacs.
EP90123330A 1989-12-14 1990-12-05 Commutateur filament principal-filament de secours pour lampes à double filament alimentées en courant alternatif dans des installations de signalisation du trafic Expired - Lifetime EP0432624B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90123330T ATE102427T1 (de) 1989-12-14 1990-12-05 Haupt/nebenfadenumschalter fuer wechselstromgespeiste doppelfadenlampen in verkehrssignalanlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3941328A DE3941328A1 (de) 1989-12-14 1989-12-14 Haupt/nebenfadenumschalter fuer wechselstromgespeiste doppelfadenlampen in verkehrssignalanlagen
DE3941328 1989-12-14

Publications (2)

Publication Number Publication Date
EP0432624A1 EP0432624A1 (fr) 1991-06-19
EP0432624B1 true EP0432624B1 (fr) 1994-03-02

Family

ID=6395470

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90123330A Expired - Lifetime EP0432624B1 (fr) 1989-12-14 1990-12-05 Commutateur filament principal-filament de secours pour lampes à double filament alimentées en courant alternatif dans des installations de signalisation du trafic

Country Status (6)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4120893C2 (de) * 1991-06-25 2000-06-15 Bayerische Motoren Werke Ag Beleuchtungsvorrichtung für Kraftfahrzeuge
DE19606896C2 (de) * 1996-02-13 2001-04-05 Siemens Ag Schaltung zum Stellen und Überwachen von Lichtsignalen
KR100468890B1 (ko) * 2002-11-01 2005-01-29 한국철도기술연구원 쌍심형 3등 3현시 철도 신호기 에프티-쌍심형 제어 시스템
RU2493605C1 (ru) * 2012-02-17 2013-09-20 Евгений Александрович Оленев Способ работы линзового светофора с двухнитевой лампой и устройство для его осуществления
CN114202904A (zh) * 2022-02-18 2022-03-18 山东冠嘉智能设备有限公司 一种自动包装机停电报警装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181792B (de) * 1963-06-29 1964-11-19 Pintsch Bamag Ag UEberwachungsschaltung fuer Haupt- und Nebenfaeden von Gluehlampen, insbesondere Signallampen
DE1566901A1 (de) * 1967-03-21 1970-04-30 Licentia Gmbh Anordnung zur UEberwachung von Signallampen auf Fadenbruch
NL178634C (nl) * 1978-01-02 1986-04-16 Philips Nv Inrichting voor het detecteren van ongewenste signaalcombinaties van twee signaallampen bij verkeerslichten.
US4380718A (en) * 1981-05-22 1983-04-19 Kelsey-Hayes Co. Trailer marker light substitution circuit

Also Published As

Publication number Publication date
DK0432624T3 (da) 1994-06-13
FI906154A0 (fi) 1990-12-13
FI97676B (fi) 1996-10-15
DE59004777D1 (de) 1994-04-07
FI97676C (fi) 1997-01-27
DE3941328A1 (de) 1991-06-20
ATE102427T1 (de) 1994-03-15
ES2051443T3 (es) 1994-06-16
FI906154A (fi) 1991-06-15
EP0432624A1 (fr) 1991-06-19

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