[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0025404A2 - Short-circuiting element for series supply circuit - Google Patents

Short-circuiting element for series supply circuit Download PDF

Info

Publication number
EP0025404A2
EP0025404A2 EP80420103A EP80420103A EP0025404A2 EP 0025404 A2 EP0025404 A2 EP 0025404A2 EP 80420103 A EP80420103 A EP 80420103A EP 80420103 A EP80420103 A EP 80420103A EP 0025404 A2 EP0025404 A2 EP 0025404A2
Authority
EP
European Patent Office
Prior art keywords
terminals
circuit
short
circuit element
control electrode
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.)
Granted
Application number
EP80420103A
Other languages
German (de)
French (fr)
Other versions
EP0025404B1 (en
EP0025404A3 (en
Inventor
Raymond Lautesse
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT80420103T priority Critical patent/ATE5626T1/en
Publication of EP0025404A2 publication Critical patent/EP0025404A2/en
Publication of EP0025404A3 publication Critical patent/EP0025404A3/en
Application granted granted Critical
Publication of EP0025404B1 publication Critical patent/EP0025404B1/en
Expired legal-status Critical Current

Links

Images

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
    • H05B39/105—Circuits providing for substitution of the light source in case of its failure with a spare lamp in the circuit, and a possibility of shunting a failed lamp

Definitions

  • the present invention relates to a short circuit element for a series supply circuit.
  • the subject of the present invention is a short-circuit element of the type having two terminals intended to be connected to the terminals of a device forming part of a set of conductive devices connected in series between two current supply terminals. electric, the short-circuit element being normally open and becoming conductive when the device to which it is connected in parallel ceases to ensure the conduction of electricity between its terminals.
  • the short-circuit element which is associated with it closes and ensures the supply of the other devices of this assembly.
  • a particular, but not limiting, field of application of the short-circuit element which is the subject of the invention is that of lighting or signaling circuits comprising several lamps connected in series, for example the beacon light circuits aerodrome runway.
  • the short-circuit elements currently used are relays with mechanical latching.
  • the relay associated with the lamp closes and short-circuits by a mechanically locked contact between the lamp and the excitation coil of the relay.
  • the object of the present invention is to provide a short-circuit element capable of operating correctly even under difficult operating conditions, in particular an element insensitive to mechanical shock and having no premature aging,
  • the short-circuit element comprises a static switch circuit comprising at least one component having two electrodes connected to the terminals of the element and a control electrode, a circuit for trip control being connected to at least a first terminal of the element and to the control electrode to apply a trip signal to the latter making the component conductive when the voltage across the short-circuit element exceeds a predetermined threshold.
  • the predetermined threshold being chosen at a value for example slightly higher than the nominal voltage across the terminals of the device to be monitored, any rise in voltage beyond this threshold will cause the short-circuit element to conduct.
  • the static switch is formed by at least one semiconductor component, for example triac or thyristor.
  • the trip control circuit comprises at least one Zener diode connected to a terminal of the element.
  • the trip control circuit can be connected either between a terminal of the element and the control electrode, or between the terminals of the element, an additional output then being connected to the control electrode.
  • a pulse transformer can be provided with a primary winding connected in series between the terminals of the element and a secondary winding connected to the control electrode.
  • the series of beacon light supply circuit represented by FIG. 1 includes a current regulator 1 which supplies the primary windings connected in series of transformers 2.
  • the secondary of each transformer supplies alternating current, between its terminals 4 and 5, a circuit 3 comprising several lamps 6 connected in series.
  • a short-circuit element 10 is connected in bypass to each lamp.
  • a single circuit 3 and a single element 10 are shown in detail in FIG. 1.
  • the short-circuit element 10 comprises a static switch which closes in response to an abnormal rise in the voltage across its terminals.
  • the element 10 comprises a triac TR 1 connected between its terminals Bl, B'1 connected to the terminals of the lamp 6 on which this element 10 is connected in parallel.
  • the control electrode Gl of the triac TR 1 is connected to a trip control circuit comprising, between the terminal Bl and the electrode Gl, a resistor R1 and a set of diodes.
  • the diode assembly comprises a first series circuit formed by a diode Dl and a Zener diode Zl with their cathodes in common and a second series circuit formed by a diode D'1 and a Zener diode Z'1 with their anodes in common.
  • a resistor V1 with variable value depending on the voltage is connected between the terminals Bl and B'1 in parallel on the triac TR 1.
  • the operation of the short circuit element 10 is as follows.
  • Zener diodes Zl and Z'1 are chosen so that the voltage on the gate Gl, for each alternation, remains below the triac trigger threshold TR 1 when the lamp 6, at the terminals of which the circuit 10 is connected , operates normally. The triac TR 1 is then blocked.
  • the current no longer flows in circuit 3 and the voltage at terminals 4 and 5 is fully available at the terminals of element 10.
  • the voltage applied to the electrode Gl through the circuit Rl, Dl, Z.1 or Rl, D'l, Z'1 exceeds the threshold determined by the diodes and the operating conditions of the triac TR1, the latter leads.
  • the triac is therefore triggered at each half-wave and ensures the passage of current allowing the operation of the other lamps 6 connected to the circuit 3.
  • the element 10 If, for any reason, the voltage across the element 10 increases abnormally without this resulting from a cut in the filament of the lamp, the element 10 operates as described above and therefore provides protection for the lamp against overvoltages.
  • the component V1 is preferably a metal oxide varistor having a Z-shaped intensity-voltage characteristic, the resistance decreasing suddenly when the voltage across the varistor crosses, in absolute value, a given threshold. This component V1 therefore provides protection of the element 10 against overvoltages.
  • the element 20 of FIG. 2 comprises, in place of the triac TR 1, two thyristors TH2 and TH'2 mounted in parallel and head to tail between the terminals B2 and B'2 of the element 20.
  • the thyristor TH2 is associated with a trip control circuit comprising a resistor R2, a diode D2 and a Zener diode Z2 connected in series between the terminal B2 and the control electrode G2 of the thyristor TH2, the diodes D2 and Z2 having their cathodes in common.
  • the thyristor TH'2 is associated with a trip control circuit comprising a resistor R'2, a diode D'2 and a Zener diode Z'2 connected in series between the terminal B'2 and the control electrode G'2 of thyristor TH'2, the diodes D'2 and Z'2 having their cathodes in common.
  • a varistor V2 is connected between terminals B2 and B'2 in parallel on thyristors TH2 and TH'2.
  • the element 20 is therefore perfectly equivalent to the element 10 in FIG. 1 and its operation is similar to that of the latter.
  • the thyristors TH2 and TH'2 are made conductive alternately during successive positive and negative half-cycles.
  • the short-circuit element 30 comprises, between its terminals B3 and B'3, a triac TR 3 connected in parallel to a varistor V3.
  • the trip control circuit comprises, between terminals B3 and B'3, a series circuit formed by a resistor R3, the primary of a pulse transformer T3 and a set of diodes D3, Z3, D ' 3, Z'3 similar to the set of diodes Dl, Zl, D'l, Z'1 of element 10 in FIG. 1.
  • the secondary of transformer T3 is connected in series with a resistor S3 between terminal B '3 and the control electrode G3 of the triac TR 3.
  • the short-circuit element 30 operates similarly to the element 10 in FIG. 1.
  • the transformer T3 applies pulses to the electrode G3 making the triac TR 3 conductive.
  • the short-circuit element 40 comprises two thyristors TH4 and TH'4 mounted head to tail in parallel between the terminals B4 and B'4 of the element 40, a varistor V4 being also mounted between terminals B4 and B'4, in parallel on each thyristor.
  • the thyristor tripping control circuit comprises, for the two thyristors, a series circuit connected between
  • the transformer T4 has a first secondary winding connected in series with a resistor S4 between terminal B4 and the control electrode G4 of thyristor TH4, and a second secondary winding connected in series with a resistor S'4 between the terminal B'4 and the control electrode G'4 of the thyristor TH'4.
  • the transformer T4 applies to the electrodes G4, G'4 pulses which make the thyristors TH 4 and TH '4 alternately conductive during successive half-cycles.
  • each short-circuit element is mounted on a printed circuit board 50 (FIGS. 5, 6) and are embedded in a sealing coating 51 obtained, for example, by molding a resin.
  • the plate 50 serves as a mounting support for the short-circuit element inside the metal housing constituting the envelope of the beacon light with which the element is associated, and the plate 50 transmits to this metal envelope the heat energy dissipated by the triac or the thyristors when they are driving.
  • the plate 50 includes a metallized zone 52 on which is fixed the boot 53 of the triac or of each thyristor and in which are formed holes 54 for fixing the plate on the boot of the beacon light.

Landscapes

  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electronic Switches (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Air Bags (AREA)

Abstract

1. Short-circuit element designed to be connected in parallel to the two terminals (B'1-B1) of a conductor device (6) and of the type normally open and becoming conductor when said device stops conducting electricity between said terminals, said element comprising, on the one hand, a static ON-OFF circuit provided with at least one component (TR1) connected by its electrodes to the terminals of the device and a control electrode (G1) and, on the other hand, a trigger control circuit connected to a terminal (B1) of the device and to the control electrode, characterized in that, in its application as short-circuit element meant to create a by-pass circuit for a conductor device (6) which is part of an assembly of conductor devices (6) connected in series between two supply terminals (4) and (5), it comprises - a static ON-OFF by pass circuit provided with at least one component (TR1) having two electrodes connected directly to the terminals (B'1-B1) of the device (6), - a trigger control circuit provided with at least one ZENER (Z1) diode having a triggering function and applying to the control electrode a triggering signal which renders the component (TR1) conductive when the voltage at the terminals of the device exceeds a predetermined threshold, - a circuit connected between the terminals (B'1-B1) in parallel to the ON-OFF circuit and comprising a member (VI) for protection against excess voltage.

Description

La présente invention concerne un élément de court-circuit pour un circuit d'alimentation série.The present invention relates to a short circuit element for a series supply circuit.

Plus précisément, la présente invention a pour objet un élément de court-circuit du type ayant deux bornes destinées à Être connectées aux bornes d'un dispositif formant partie d'un ensemble de dispositifs conducteurs branchés en série entre deux bornes d'alimentation en courant électrique, l'élément de court-circuit étant normalement ouvert et devenant conducteur lorsque le dispositif sur lequel il est branché en parallèle cesse d'assurer la conduction de l'électricité entre ses bornes.More specifically, the subject of the present invention is a short-circuit element of the type having two terminals intended to be connected to the terminals of a device forming part of a set of conductive devices connected in series between two current supply terminals. electric, the short-circuit element being normally open and becoming conductive when the device to which it is connected in parallel ceases to ensure the conduction of electricity between its terminals.

Ainsi, en cas de défaillance d'un des dispositifs de l'ensemble empêchant le passage du courant entre ses bornes, l'élément de court-circuit qui lui est associé se ferme et assure l'alimentation des autres dispositifs de cet ensemble.Thus, in the event of a failure of one of the devices of the assembly preventing the passage of current between its terminals, the short-circuit element which is associated with it closes and ensures the supply of the other devices of this assembly.

Un domaine d'application particulier, mais non limitatif, de l'élément de court-circuit objet de l'invention est celui des circuits d'éclairage ou de signalisation comportant plusieurs lampes branchées en série, par exemple les circuits de feux de balisage de piste d'aérodrome.A particular, but not limiting, field of application of the short-circuit element which is the subject of the invention is that of lighting or signaling circuits comprising several lamps connected in series, for example the beacon light circuits aerodrome runway.

Dans le cas précisément des circuits de feux de balisage, les éléments de court-circuit utilisés actuellement sont à relais à accrochage mécanique. Lorsqu'un filament de lampe est coupé, le relais associé à la lampe se ferme et court-circuite par un contact verrouillé mécaniquement l'ensemble lampe et bobine d'excitation du relais.In the specific case of beacon light circuits, the short-circuit elements currently used are relays with mechanical latching. When a lamp filament is cut, the relay associated with the lamp closes and short-circuits by a mechanically locked contact between the lamp and the excitation coil of the relay.

Toutefois, il s'avère que, les relais étant prémagnétisés, le moindre choc les fait fonctionner. Cet inconvénient est encore plus manifeste lorsqu'un relais a déclenché plusieurs fois car il est alors plus sensible aux vibrations.However, it turns out that, since the relays are premagnetized, the slightest shock makes them work. This drawback is even more manifest when a relay has tripped several times because it is then more sensitive to vibrations.

Aussi, la présente invention a pour but de fournir un élément de court-circuit susceptible de fonctionner de façon correcte même dans des conditions d'exploitation difficiles, en particulier un élément insensible aux chocs mécaniques et n'ayant pas de vieillissement prématuré,Also, the object of the present invention is to provide a short-circuit element capable of operating correctly even under difficult operating conditions, in particular an element insensitive to mechanical shock and having no premature aging,

Ce but est atteint du fait que, conformément à l'invention, l'élément de court-circuit comporte un circuit interrupteur statique comprenant au moins un composant ayant deux électrodes reliées aux bornes de l'élément et une électrode de commande, un circuit de commande de déclenchement étant relié à au moins une première borne de l'élément et à l'électrode de commande pour appliquer à celle-ci un signal de déclenchement rendant le composant conducteur lorsque la tension aux bornes de l'élément de court-circuit dépasse un seuil prédéterminé.This object is achieved because, in accordance with the invention, the short-circuit element comprises a static switch circuit comprising at least one component having two electrodes connected to the terminals of the element and a control electrode, a circuit for trip control being connected to at least a first terminal of the element and to the control electrode to apply a trip signal to the latter making the component conductive when the voltage across the short-circuit element exceeds a predetermined threshold.

Le seuil prédéterminé étant choisi à une valeur par exemple légèrement supérieure à la tension nominale aux bornes du dispositif à surveiller, toute élévation de tension au-delà de ce seuil provoquera la conduction de l'élément de court-circuit. Ainsi apparaît un avantage particulier de l'élément de court-circuit conforme à l'invention, avantage qui réside dans le fait qu'il remplit non seulement sa fonction de dérivation en cas de coupure du dispositif surveillé, mais aussi une fonction de protection en cas de surtension aux bornes du dispositif surveillé non due à une coupure de celui-ci.The predetermined threshold being chosen at a value for example slightly higher than the nominal voltage across the terminals of the device to be monitored, any rise in voltage beyond this threshold will cause the short-circuit element to conduct. Thus there appears a particular advantage of the short-circuit element according to the invention, an advantage which resides in the fact that it fulfills not only its bypass function in the event of a cut in the monitored device, but also a protection function in overvoltage at the terminals of the monitored device not due to a cut-out of the device.

Selon une particularité de l'élément de court-circuit conforme à l'invention, l'interrupteur statique est formé par au moins un composant à semi-conducteur, par exemple triac ou thyristor.According to a feature of the short-circuit element according to the invention, the static switch is formed by at least one semiconductor component, for example triac or thyristor.

Selon une autre particularité de l'élément de court-circuit conforme à l'invention, le circuit de commande de déclenchement comporte au moins une diode Zéner reliée à une borne de l'élément.According to another feature of the short-circuit element according to the invention, the trip control circuit comprises at least one Zener diode connected to a terminal of the element.

Le circuit de commande de déclenchement peut être branché soit entre une borne de l'élément et l'électrode de commande, soit entre les bornes de l'élément, une sortie supplémentaire étant alors reliée à l'électrode de commande. Dans ce dernier cas, un transformateur d'impulsions peut être prévu avec un enroulement primaire branché en série entre les bornes de l'élément et un enroulement secondaire relié à l'électrode de commande.The trip control circuit can be connected either between a terminal of the element and the control electrode, or between the terminals of the element, an additional output then being connected to the control electrode. In the latter case, a pulse transformer can be provided with a primary winding connected in series between the terminals of the element and a secondary winding connected to the control electrode.

D'autres particularités et avantages du dispositif conforme à l'invention ressortiront à la lecture de la description faite ci-après, à titre indicatif mais non limitatif, en référence aux dessins joints qui illustrent :

  • - figure 1 : un schéma de circuit d'alimentation série de feux de balisage muni d'éléments de court-circuit conformes à l'invention ;
  • - figures 2 à 4 : trois schémas illustrant des variantes de réalisation d'un élément de court-circuit conforme à l'invention, et,
  • - figures 5 et 6 : une vue en plan et une vue de côté d'une plaquette sur laquelle est monté un élément de court-circuit conforme à l'invention.
Other features and advantages of the device according to the invention will emerge on reading the description given below, by way of indication but not limitation, with reference to the accompanying drawings which illustrate:
  • - Figure 1: a diagram of the power supply series of beacon lights provided with short-circuit elements according to the invention;
  • FIGS. 2 to 4: three diagrams illustrating alternative embodiments of a short-circuit element according to the invention, and,
  • - Figures 5 and 6: a plan view and a side view of a plate on which is mounted a short-circuit element according to the invention.

Le circuit d'alimentation série de feux de balisage représenté par la figure 1 comporte un régulateur de courant 1 qui alimente les enroulements primaires branchés en série de transformateurs 2. Le secondaire de chaque transformateur alimente en courant alternatif, entre ses bornes 4 et 5, un circuit 3 comportant plusieurs lampes 6 branchées en série. Un élément de court-circuit 10 est branché en dérivation sur chaque lampe. Un seul circuit 3 et un seul élément 10 sont représentés en détail sur la figure 1.The series of beacon light supply circuit represented by FIG. 1 includes a current regulator 1 which supplies the primary windings connected in series of transformers 2. The secondary of each transformer supplies alternating current, between its terminals 4 and 5, a circuit 3 comprising several lamps 6 connected in series. A short-circuit element 10 is connected in bypass to each lamp. A single circuit 3 and a single element 10 are shown in detail in FIG. 1.

Conformément à l'invention, l'élément de court-circuit 10 comporte un interrupteur statique se fermant en réponse à une élévation anormale de la tension à ses bornes.According to the invention, the short-circuit element 10 comprises a static switch which closes in response to an abnormal rise in the voltage across its terminals.

Dans l'exemple illustré par la figure 1, l'élément 10 comporte un triac TR 1 branché entre ses bornes Bl, B'1 raccordées aux bornes de la lampe 6 sur laquelle cet élément 10 est branché en parallèle. L'électrode de commande Gl du triac TR 1 est reliée à un circuit de commande de déclenchement comportant, entre la borne Bl et l'électrode Gl, une résistance R1 et un ensemble de diodes. L'ensemble de diodes comporte un premier circuit série formé d'une diode Dl et d'une diode Zéner Zl avec leurs cathodes en commun et un second circuit série formé d'une diode D'1 et d'une diode Zéner Z'1 avec leurs anodes en commun. Une résistance Vl à valeur variable en fonction de la tension est branchée entre les bornes Bl et B'1 en parallèle sur le triac TR 1.In the example illustrated by FIG. 1, the element 10 comprises a triac TR 1 connected between its terminals Bl, B'1 connected to the terminals of the lamp 6 on which this element 10 is connected in parallel. The control electrode Gl of the triac TR 1 is connected to a trip control circuit comprising, between the terminal Bl and the electrode Gl, a resistor R1 and a set of diodes. The diode assembly comprises a first series circuit formed by a diode Dl and a Zener diode Zl with their cathodes in common and a second series circuit formed by a diode D'1 and a Zener diode Z'1 with their anodes in common. A resistor V1 with variable value depending on the voltage is connected between the terminals Bl and B'1 in parallel on the triac TR 1.

Le fonctionnement de l'élément de court-circuit 10 est le suivant.The operation of the short circuit element 10 is as follows.

Les diodes Zéner Zl et Z'1 sont choisies de manière que la tension sur la gàchette Gl, pour chaque alternance, reste en- deçà du seuil de déclenchement du triac TR 1 lorsque la lampe 6, aux bornes de laquelle le circuit 10 est branché, fonctionne normalement. Le triac TR 1 est alors bloqué.The Zener diodes Zl and Z'1 are chosen so that the voltage on the gate Gl, for each alternation, remains below the triac trigger threshold TR 1 when the lamp 6, at the terminals of which the circuit 10 is connected , operates normally. The triac TR 1 is then blocked.

Si le filament de la lampe se coupe, le courant ne circule plus dans le circuit 3 et la tension aux bornes 4 et 5 se trouve entièrement disponible aux bornes de l'élément 10. Lorsque, à chaque demi-alternance, la tension appliquée à l'électrode Gl à travers le circuit Rl, Dl, Z.1 ou Rl, D'l, Z'1 (selon le signe de l'alternance) dépasse le seuil déterminé par les diodes et les conditions de fonctionnement du triac TR1, ce dernier conduit. Le triac est donc alors déclenché à chaque demi-alternance et assure le passage du courant permettant le fonctionnement des autres lampes 6 branchées sur le circuit 3.If the filament of the lamp is cut, the current no longer flows in circuit 3 and the voltage at terminals 4 and 5 is fully available at the terminals of element 10. When, at each half-wave, the voltage applied to the electrode Gl through the circuit Rl, Dl, Z.1 or Rl, D'l, Z'1 (depending on the sign of the alternation) exceeds the threshold determined by the diodes and the operating conditions of the triac TR1, the latter leads. The triac is therefore triggered at each half-wave and ensures the passage of current allowing the operation of the other lamps 6 connected to the circuit 3.

Si, pour une raison quelconque, la tension aux bornes de l'élément 10 croit anormalement sans que cela résulte d'une coupure du filament de la lampe, l'élément 10 fonctionne comme décrit ci- dessus et assure donc une protection de la lampe contre les surtensions.If, for any reason, the voltage across the element 10 increases abnormally without this resulting from a cut in the filament of the lamp, the element 10 operates as described above and therefore provides protection for the lamp against overvoltages.

Le composant Vl est de préférence un varistor à oxyde métallique ayant une caractéristique intensité-tension en forme de Z, la résistance décroissant brusquement lorsque la tension aux bornes du varistor franchit, en valeur absolue, un seuil donné. Ce composant Vl assure donc une protection de l'élément 10 contre les surtensions.The component V1 is preferably a metal oxide varistor having a Z-shaped intensity-voltage characteristic, the resistance decreasing suddenly when the voltage across the varistor crosses, in absolute value, a given threshold. This component V1 therefore provides protection of the element 10 against overvoltages.

Différentes variantes de réalisation de l'élément de court-circuit sont illustrées par les figures 2 à 4.Different embodiments of the short-circuit element are illustrated in FIGS. 2 to 4.

L'élément 20 de la figure 2 comporte, à la place du triac TR 1, deux thyristors TH2 et TH'2 montés en parallèle et tête-bêche entre les bornes B2 et B'2 de l'élément 20. Le thyristor TH2 est associé à un circuit de commande de déclenchement comportant une résistance R2, une diode D2 et une diode Zéner Z2 branchées en série entre la borne B2 et l'électrode de commande G2 du thyristor TH2, les diodes D2 et Z2 ayant leurs cathodes en commun. De la même façon, le thyristor TH'2 est associé à un circuit de commande de déclenchement comportant une résistance R'2, une diode D'2 et une diode Zéner Z'2 branchées en série entre la borne B'2 et l'électrode de commande G'2 du thyristor TH'2, les diodes D'2 et Z'2 ayant leurs cathodes en commun. Un varistor V2 est branché entre les bornes B2 et B'2 en parallèle sur les thyristors TH2 et TH'2.The element 20 of FIG. 2 comprises, in place of the triac TR 1, two thyristors TH2 and TH'2 mounted in parallel and head to tail between the terminals B2 and B'2 of the element 20. The thyristor TH2 is associated with a trip control circuit comprising a resistor R2, a diode D2 and a Zener diode Z2 connected in series between the terminal B2 and the control electrode G2 of the thyristor TH2, the diodes D2 and Z2 having their cathodes in common. In the same way, the thyristor TH'2 is associated with a trip control circuit comprising a resistor R'2, a diode D'2 and a Zener diode Z'2 connected in series between the terminal B'2 and the control electrode G'2 of thyristor TH'2, the diodes D'2 and Z'2 having their cathodes in common. A varistor V2 is connected between terminals B2 and B'2 in parallel on thyristors TH2 and TH'2.

L'élément 20 est donc parfaitement équivalent à l'élément 10 de la figure 1 et son fonctionnement est analogue à celui de ce dernier.The element 20 is therefore perfectly equivalent to the element 10 in FIG. 1 and its operation is similar to that of the latter.

Lorsque la tension aux bornes B2, B'2 dépasse un seuil pré- déterminé, les thyristors TH2 et TH'2 sont rendus conducteurs alternativement au cours des demi-alternances positives et négatives successives.When the voltage at terminals B2, B'2 exceeds a predetermined threshold, the thyristors TH2 and TH'2 are made conductive alternately during successive positive and negative half-cycles.

Dans le cas de la figure 3, l'élément de court-circuit 30 comporte, entre ses bornes B3 et B'3, un triac TR 3 branché en parallèle sur un varistor V3. Le circuit de commande de déclenchement comporte, entre les bornes B3 et B'3, un circuit série formé d'une résistance R3, du primaire d'un transformateur d'impulsions T3 et d'un ensemble de diodes D3, Z3, D'3, Z'3 semblable à l'ensemble de diodes Dl, Zl, D'l, Z'1 de l'élément 10 de la figure 1. Le secondaire du transformateur T3 est branché en série avec une résistance S3 entre la borne B'3 et l'électrode de commande G3 du triac TR 3.In the case of FIG. 3, the short-circuit element 30 comprises, between its terminals B3 and B'3, a triac TR 3 connected in parallel to a varistor V3. The trip control circuit comprises, between terminals B3 and B'3, a series circuit formed by a resistor R3, the primary of a pulse transformer T3 and a set of diodes D3, Z3, D ' 3, Z'3 similar to the set of diodes Dl, Zl, D'l, Z'1 of element 10 in FIG. 1. The secondary of transformer T3 is connected in series with a resistor S3 between terminal B '3 and the control electrode G3 of the triac TR 3.

L'élément de court-circuit 30 fonctionne de façon semblable à l'élément 10 de la figure 1. Lorsque la tension entre les bornes B3 et B'3 atteint une valeur telle que l'ensemble à diodes Z3, D3, Z'3, D'3 conduit au cours de chaque demi-alternance, le transformateur T3 applique sur l'électrode G3 des impulsions rendant le triac TR 3 conducteur.The short-circuit element 30 operates similarly to the element 10 in FIG. 1. When the voltage between the terminals B3 and B'3 reaches a value such that the diode assembly Z3, D3, Z'3 , D'3 conducts during each half-wave, the transformer T3 applies pulses to the electrode G3 making the triac TR 3 conductive.

Dans le cas de la figure 4, l'élément de court-circuit 40 comporte deux thyristors TH4 et TH'4 montés tête-bêche en parallèle entre les bornes B4 et B'4 de l'élément 40, un varistor V4 étant également monté entre les bornes B4 et B'4, en parallèle sur chaque thyristor. Le circuit de commande de déclenchement des thyristors comporte, pour les deux thyristors, un circuit série branché entreIn the case of FIG. 4, the short-circuit element 40 comprises two thyristors TH4 and TH'4 mounted head to tail in parallel between the terminals B4 and B'4 of the element 40, a varistor V4 being also mounted between terminals B4 and B'4, in parallel on each thyristor. The thyristor tripping control circuit comprises, for the two thyristors, a series circuit connected between

les bornes B4 et B'4 et formé d'une résistance R4, d'un primaire d'un transformateur d'impulsions T4 et d'un ensemble de diodes D4, Z4, D'4, Z'4 semblable à l'ensemble de diodes Dl, Zl, D'l, Z'1 de l'élément 10 de la figure 1. Le transformateur T4 a un premier enroulement secondaire branché en série avec une résistance S4 entre la borne B4 et l'électrode de commande G4 du thyristor TH4, et un second enroulement secondaire branché en série avec une résistance S'4 entre la borne B'4 et l'électrode de commande G'4 du thyristor TH'4.terminals B4 and B'4 and formed by a resistor R4, a primary of a pulse transformer T4 and a set of diodes D4, Z4, D'4, Z'4 similar to the set of diodes Dl, Zl, D'l, Z'1 of element 10 in FIG. 1. The transformer T4 has a first secondary winding connected in series with a resistor S4 between terminal B4 and the control electrode G4 of thyristor TH4, and a second secondary winding connected in series with a resistor S'4 between the terminal B'4 and the control electrode G'4 of the thyristor TH'4.

Lorsque la tension entre les bornes B4 et B'4 atteint une valeur telle que l'ensemble à diodes Z4, D4, Z'4, D'4 conduit au cours de chaque demi-alternance, le transformateur T4 applique sur les électrodes G4, G'4 des impulsions qui rendent les thyristors TH 4 et TH' 4 alternativement conducteurs au cours des demi-alternances successives.When the voltage between terminals B4 and B'4 reaches a value such that the diode assembly Z4, D4, Z'4, D'4 conducts during each half-wave, the transformer T4 applies to the electrodes G4, G'4 pulses which make the thyristors TH 4 and TH '4 alternately conductive during successive half-cycles.

Dans le cadre de leur application aux circuits d'alimentation de feux de balisage, les éléments de court-circuit conformes à l'invention sont soumis à des conditions d'exploitation sévères. De préférence, les composantes de chaque élément de court-circuit sont montés sur une plaquette de circuit imprimé 50 (figures 5, 6) et sont noyés dans un enrobage d'étanchéité 51 obtenu, par exemple, par moulage d'une résine.In the context of their application to beacon light supply circuits, the short-circuit elements in accordance with the invention are subjected to severe operating conditions. Preferably, the components of each short-circuit element are mounted on a printed circuit board 50 (FIGS. 5, 6) and are embedded in a sealing coating 51 obtained, for example, by molding a resin.

De préférence, la plaquette 50 sert de support de montage de l'élément de court-circuit à l'intérieur du boîtier métallique constituant l'enveloppe du feu de balisage auquel l'élément est associé, et la plaquette 50 transmet à cette enveloppe métallique l'énergie calorifique dissipée par le triac ou les thyristors lorsqu'ils conduisent. A cet effet, la plaquette 50 comporte une zone métallisée 52 sur laquelle est fixé le bottier 53 du triac ou de chaque thyristor et dans laquelle sont formés des trous 54 de fixation de la plaquette sur le bottier du feu de balisage.Preferably, the plate 50 serves as a mounting support for the short-circuit element inside the metal housing constituting the envelope of the beacon light with which the element is associated, and the plate 50 transmits to this metal envelope the heat energy dissipated by the triac or the thyristors when they are driving. To this end, the plate 50 includes a metallized zone 52 on which is fixed the boot 53 of the triac or of each thyristor and in which are formed holes 54 for fixing the plate on the boot of the beacon light.

Bien entendu, diverses modifications ou adjonctions pourront être apportées aux modes de réalisation décrits plus haut d'un élément de court-circuit conforme à l'invention sans pour cela sortir du cadre de protection défini par les revendications annexées.Of course, various modifications or additions may be made to the embodiments described above of a short-circuit element according to the invention without thereby departing from the protective framework defined by the appended claims.

Claims (9)

1 - Elément de court-circuit ayant deux bornes destinées à être connectées aux bornes d'un dispositif formant partie d'un ensemble de dispositifs conducteurs branchés en série entre deux bornes d'alimentation en courant électrique, l'élément de court-circuit étant normalement ouvert et devenant conducteur lorsque le dispositif sur lequel il est branché en parallèle cesse d'assurer la conduction de l'électricité entre ses bornes, élément caractérisé en ce qu'il comporte un circuit interrupteur statique comprenant au moins un composant ayant deux électrodes reliées directement aux bornes de l'élément et une électrode de commande, un circuit de commande de déclenchement étant relié à au moins une première borne de l'élément et à l'électrode de commande pour appliquer à celle-ci un signal de déclenchement rendant le composant conducteur lorsque la tension aux bornes de l'élément de court-circuit dépasse un seuil prédéterminé.1 - Short-circuit element having two terminals intended to be connected to the terminals of a device forming part of a set of conductive devices connected in series between two electrical supply terminals, the short-circuit element being normally open and becoming conductive when the device to which it is connected in parallel ceases to ensure the conduction of electricity between its terminals, element characterized in that it comprises a static switch circuit comprising at least one component having two connected electrodes directly to the terminals of the element and a control electrode, a trigger control circuit being connected to at least one first terminal of the element and to the control electrode to apply a trigger signal to the latter making the conductive component when the voltage across the short-circuit element exceeds a predetermined threshold. 2 - Elément de court-circuit selon la revendication 1, caractérisé en ce que le circuit de commande de déclenchement comporte au moins une diode Zéner reliée à une borne de l'élément.2 - Short-circuit element according to claim 1, characterized in that the trigger control circuit comprises at least one Zener diode connected to a terminal of the element. 3 - Elément de court-circuit selon l'une quelconque des revendication 1 et 2, caractérisé en ce que le circuit de commande de déclenchement est branché entre une borne de l'élément et l'électrode de commande.3 - Short-circuit element according to any one of claims 1 and 2, characterized in that the trigger control circuit is connected between a terminal of the element and the control electrode. 4 - Elément de court-circuit selon l'une quelconque des revendications 1 et 2, caractérisé en ce que le circuit de commande de déclenchement est branché entre les bornes de l'élément, une sortie supplémentaire étant reliée à l'électrode de commande.4 - Short-circuit element according to any one of claims 1 and 2, characterized in that the trip control circuit is connected between the terminals of the element, an additional output being connected to the control electrode. 5 - Elément de court-circuit selon la revendication 4, caractérisé en ce que le circuit de commande de déclenchement comporte un transformateur d'impulsions ayant un enroulement primaire branché en série entre les bornes de l'élément et un enroulement secondaire relié à l'électrode de commande.5 - Short-circuit element according to claim 4, characterized in that the trip control circuit comprises a pulse transformer having a primary winding connected in series between the terminals of the element and a secondary winding connected to the control electrode. 6 - Elément de court-circuit selon l'une quelconque des revendications précédentes, caractérisé en ce que ses constituants sont montés sur une plaquette de circuit imprimé utilisée comme support de montage de l'élément à l'intérieur d'un boîtier et susceptible de transmettre au bottier l'énergie calorifique dissipée notamment par le ou chaque composant lorsqu'il est en état de conduction.6 - Short-circuit element according to any one of the preceding claims, characterized in that its constituents are mounted on a printed circuit board used as a support for mounting the element inside a housing and likely to transmit to the shoemaker the heat energy dissipated in particular by the or each component when it is in a conduction state. 7 - Elément de court-circuit selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il est muni d'un organe de protection contre les surtensions branché entre ses bornes.7 - Short-circuit element according to any one of claims 1 to 6, characterized in that it is provided with a protective device against overvoltages connected between its terminals. 8 - Elément de court-circuit selon la revendication 7, caractérisé en ce que ledit organe de protection est une résistance de résistivité variable en fonction de la tension à ses bornes.8 - Short-circuit element according to claim 7, characterized in that said protection member is a variable resistivity resistance as a function of the voltage across its terminals. 9 - Circuit d'alimentation série de feux de balisage comportant plusieurs lampes qui sont branchées en série entre deux bornes d'alimentation en courant électrique et qui sont associées chacune à un élément de court-circuit branché en parallèle sur ses bornes, caractérisé en ce que chaque élément de court-circuit est conforme à l'une quelconque des revendication 1 à 8.9 - Series supply circuit for beacon lights comprising several lamps which are connected in series between two electric power supply terminals and which are each associated with a short-circuit element connected in parallel on its terminals, characterized in that that each short circuit element conforms to any one of claims 1 to 8.
EP80420103A 1979-09-11 1980-09-04 Short-circuiting element for series supply circuit Expired EP0025404B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80420103T ATE5626T1 (en) 1979-09-11 1980-09-04 SHORT-CIRCUIT ELEMENT FOR SERIES CONNECTION.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7923262 1979-09-11
FR7923262A FR2465394A1 (en) 1979-09-11 1979-09-11 SHORT-CIRCUIT ELEMENT FOR A SERIES POWER SUPPLY CIRCUIT

Publications (3)

Publication Number Publication Date
EP0025404A2 true EP0025404A2 (en) 1981-03-18
EP0025404A3 EP0025404A3 (en) 1981-03-25
EP0025404B1 EP0025404B1 (en) 1983-12-14

Family

ID=9229760

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80420103A Expired EP0025404B1 (en) 1979-09-11 1980-09-04 Short-circuiting element for series supply circuit

Country Status (5)

Country Link
EP (1) EP0025404B1 (en)
JP (1) JPS5646630A (en)
AT (1) ATE5626T1 (en)
DE (1) DE3065892D1 (en)
FR (1) FR2465394A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658974A1 (en) * 1990-02-26 1991-08-30 Estival Christian Supply device for incandescent lamps connected in series, having a high degree of reliability
FR2663183A1 (en) * 1990-06-07 1991-12-13 Fd Eclairage Architectural Supply circuit for low-voltage lamps connected in series
FR2771587A1 (en) * 1997-11-21 1999-05-28 Francis David Shunt for failed low-voltage electric lamps connected in series

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10329082A1 (en) * 2003-03-31 2004-10-21 Osram Opto Semiconductors Gmbh Switching unit for system with a number of laser diodes provides a bridging function to maintain operation if one device fails

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR422443A (en) * 1909-11-03 1911-03-21 Edgar Booth Improvements in the electrical installations of incandescent lamps connected in series
US2021062A (en) * 1932-12-09 1935-11-12 Gen Electric Indicator for incandescent lamps
FR1541224A (en) * 1967-10-02 1968-10-04 Bassani Spa Device for the automatic switching on of lamps in the event of switch-off of normal lamps in a lighting installation
FR2275962A1 (en) * 1974-06-19 1976-01-16 Central Eclairage Lab Lighting circuit using discharge lamp - auxiliary incandescent lamp operated on failure of discharge lamp supply
US4099095A (en) * 1976-02-25 1978-07-04 General Electric Company Operating circuit for gaseous discharge and incandescent lamps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR422443A (en) * 1909-11-03 1911-03-21 Edgar Booth Improvements in the electrical installations of incandescent lamps connected in series
US2021062A (en) * 1932-12-09 1935-11-12 Gen Electric Indicator for incandescent lamps
FR1541224A (en) * 1967-10-02 1968-10-04 Bassani Spa Device for the automatic switching on of lamps in the event of switch-off of normal lamps in a lighting installation
FR2275962A1 (en) * 1974-06-19 1976-01-16 Central Eclairage Lab Lighting circuit using discharge lamp - auxiliary incandescent lamp operated on failure of discharge lamp supply
US4099095A (en) * 1976-02-25 1978-07-04 General Electric Company Operating circuit for gaseous discharge and incandescent lamps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2658974A1 (en) * 1990-02-26 1991-08-30 Estival Christian Supply device for incandescent lamps connected in series, having a high degree of reliability
FR2663183A1 (en) * 1990-06-07 1991-12-13 Fd Eclairage Architectural Supply circuit for low-voltage lamps connected in series
FR2771587A1 (en) * 1997-11-21 1999-05-28 Francis David Shunt for failed low-voltage electric lamps connected in series

Also Published As

Publication number Publication date
EP0025404B1 (en) 1983-12-14
EP0025404A3 (en) 1981-03-25
FR2465394B1 (en) 1983-11-18
ATE5626T1 (en) 1983-12-15
FR2465394A1 (en) 1981-03-20
JPS5646630A (en) 1981-04-27
DE3065892D1 (en) 1984-01-19

Similar Documents

Publication Publication Date Title
US5790354A (en) Hybrid power switching device
FR2632117A1 (en) AUXILIARY ASSEMBLY FOR CIRCUIT BREAKER IN MOLDED HOUSING
US4246621A (en) Energizing circuit for solenoid valve
FR2584883A1 (en) CONTROL GATE CONTROL CIRCUIT FOR SOLID STATE CIRCUIT SWITCH
EP0037751A1 (en) Static tripping device for an electric circuit-breaking switch
FR2661573A1 (en) PULSE GRID CONTROL CIRCUIT WITH SHORT-CIRCUIT SECURITY.
EP0025404B1 (en) Short-circuiting element for series supply circuit
FR2549309A1 (en) OVERVOLTAGE PROTECTION DEVICE FOR DOMESTIC OR INDUSTRIAL USE
BE1005336A0 (en) REMOTE SWITCH WITH CURRENT LIMITING DEVICE.
FR2488476A1 (en) CONTROL CIRCUITS AND ELECTRICAL SWITCHING ASSEMBLIES COMPRISING SUCH CIRCUITS
FR2663183A1 (en) Supply circuit for low-voltage lamps connected in series
FR2989824A1 (en) CIRCUIT ACTUATOR FOR CIRCUIT BREAKER CONTROL
US5940259A (en) Voltage surge protector for electronic circuits with semiconductor components
EP0085074B1 (en) Protection device against over-voltage in an electric distribution network
BE1005313A5 (en) Stall minimum tension device.
US3535592A (en) Rapidly operating solid state electronic switch with parallel tripping path
FR2627920A1 (en) Telephone ancillary equipment supply limiter - is fitted between line and any subsidiary equipment and monitors derived line voltage and regulates supply
US4062051A (en) Battery spark suppression circuit
CA1194588A (en) Feeder circuit for contral contact, and its use on the delay control of a relay at rest
FR2630869A1 (en) Device for isolated transmission of a signal by optocoupler
SU811391A1 (en) Device for protecting three-phase electric motor from incomplete phase mode
SU1163383A1 (en) Electromagnetic relay with high reset ratio
SU838858A1 (en) Device for automatic reconnection
SU661673A1 (en) Device for protecting electric power comsumer from undervoltage with time delay
EP0290314B1 (en) Operating circuit for electric remote-control apparatuses, especially remotely controlled brakers, and apparatuses incorporating this circuit

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LU NL SE

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LU NL SE

17P Request for examination filed

Effective date: 19810325

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): AT BE CH DE GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19831214

Ref country code: NL

Effective date: 19831214

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19831214

Ref country code: AT

Effective date: 19831214

REF Corresponds to:

Ref document number: 5626

Country of ref document: AT

Date of ref document: 19831215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3065892

Country of ref document: DE

Date of ref document: 19840119

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19840818

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19840930

Ref country code: LI

Effective date: 19840930

Ref country code: CH

Effective date: 19840930

Ref country code: BE

Effective date: 19840930

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
BERE Be: lapsed

Owner name: LAUTESSE RAYMOND

Effective date: 19840904

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19880601

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19881118