FR2663183A1 - Supply circuit for low-voltage lamps connected in series - Google Patents
Supply circuit for low-voltage lamps connected in series Download PDFInfo
- Publication number
- FR2663183A1 FR2663183A1 FR9007082A FR9007082A FR2663183A1 FR 2663183 A1 FR2663183 A1 FR 2663183A1 FR 9007082 A FR9007082 A FR 9007082A FR 9007082 A FR9007082 A FR 9007082A FR 2663183 A1 FR2663183 A1 FR 2663183A1
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- FR
- France
- Prior art keywords
- series
- triac
- lamp
- terminals
- low
- 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
Links
- 230000001960 triggered effect Effects 0.000 claims abstract description 5
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 3
- 230000002950 deficient Effects 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 claims description 4
- 230000007257 malfunction Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
Description
"Circuit d'alimentation de lampes basse tension disposées en série"
On connaît déjà des circuits d'alimentation basse tension de lampes disposées en série (voir figure 1) qui comportent, en parallèle sur chaque lampe 1, un dispositif de commutation à déclenchement automatique 2 qui relie électriquement les bornes de la lampe considérée lorsque son filament est coupé."Low voltage lamp supply circuit arranged in series"
Low-voltage power supply circuits for lamps arranged in series are already known (see FIG. 1) which comprise, in parallel on each lamp 1, an automatically triggered switching device 2 which electrically connects the terminals of the lamp considered when its filament is cut.
Cette disposition permet de maintenir allumées les autres lampes de la série de lampes lorsque le filament de l'une ou plusieurs d'entre elles est coupé. This arrangement makes it possible to keep the other lamps in the lamp series on when the filament of one or more of them is cut.
Ce dispositif de commutation à déclenchement automatique 2 est constitué par un relais électromagnétique auto-alimenté branché en parallèle sur les bornes de chaque lampe. This automatic triggering switching device 2 consists of a self-powered electromagnetic relay connected in parallel to the terminals of each lamp.
Un dispositif limiteur de courant 3 est également en général prévu en série avec les lampes. A current limiting device 3 is also generally provided in series with the lamps.
a mise en oeuvre de ces relais 2 présente cependant de nombreux inconvénients en raison de leur coût, de leur encombrement important, de leur complexité, de leur fiabilité toute relative et de leur temps de réponse aléatoire. A implementation of these relays 2, however, has many drawbacks due to their cost, their large size, their complexity, their relative reliability and their random response time.
Le remplacement de ces relais électromagné- tiques par des systèmes électroniques a été souhaité mais il n'a jamais pu aboutir à des réalisations intéressantes sur le plan de la simplicité de construction, de la fiabilité, de leur prix et de l'encombrement. The replacement of these electromagnetic relays by electronic systems was desired but it could never lead to interesting achievements in terms of simplicity of construction, reliability, price and size.
On connaît également (voir figure 2) un dispositif de commutation électronique qui est utilisé pour mettre en ou hors circuit une charge ou un consommateur quelconque 4. Dans ce cas, ce dispositif de commutation se compose d'un triac 5 dont les bornes d'entrée 51 et de sortie 52 sont disposées en série avec la charge 4 et la source d'alimentation U. La gâchette 53 de ce triac est actionnée, pour produire la commutation du circuit, par l'intermédiaire d'un circuit de déclenchement 6 et à partir d'un signal de commande extérieur amené sur la borne d'entrée 61 de ce circuit de déclenchement. There is also known (see FIG. 2) an electronic switching device which is used to switch on or off a load or any consumer 4. In this case, this switching device consists of a triac 5 whose terminals input 51 and output 52 are arranged in series with the load 4 and the power source U. The trigger 53 of this triac is actuated, to produce the switching of the circuit, by means of a tripping circuit 6 and from an external control signal brought to the input terminal 61 of this trigger circuit.
Dans ce circuit, on prévoit également une résistance de faible valeur 7 entre la gâchette 53 et la borne d'entrée 57 et un suppresseur bi-directionnel de surtension transitoire 8 entre cette gâchette 53 et la borne de sortie opposée 52 du triac. In this circuit, a low-value resistor 7 is also provided between the trigger 53 and the input terminal 57 and a bi-directional transient overvoltage suppressor 8 between this trigger 53 and the opposite output terminal 52 of the triac.
Ce suppresseur bi-directionnel de surtension transitoire, constitué par une double diode Zener, est communément appelé "diode Transit" et absorbe les surtensions provisoires pouvant apparaître dans le circuit, afin d'éviter le déclenchement intempestif du triac lors de l'apparition de telles surtensions et afin d'être certain que le triac ne soit actionné que par le signal de déclenchement extérieur amené sur la borne 6. This bi-directional transient overvoltage suppressor, consisting of a double Zener diode, is commonly called a "Transit diode" and absorbs temporary overvoltages that may appear in the circuit, in order to avoid inadvertent triac tripping upon the appearance of such overvoltages and in order to be certain that the triac is only actuated by the external trip signal brought to terminal 6.
Vis-à-vis de ce dispositif connu, la présente invention concerne un circuit d'alimentation de lampes basse tension disposées en série comportant, en parallèle sur chaque lampe, un dispositif de commutation à déclenchement automatique reliant électrique ment les bornes de la lampe considérée lorsqu'elle devient défectueuse, circuit caractérisé en ce que le dispositif de commutation est constitué par un triac disposé, par ses bornes d'entrée et de sortie en parallèle sur une ampoule, un suppresseur bidirectionnel de surtension transitoire étant prévu entre la gâchette du triac et la borne de sortie opposée. With respect to this known device, the present invention relates to a power supply circuit for low-voltage lamps arranged in series comprising, in parallel on each lamp, an automatically triggered switching device electrically connecting the terminals of the lamp considered. when it becomes defective, circuit characterized in that the switching device consists of a triac arranged, by its input and output terminals in parallel on a bulb, a bidirectional suppressor of transient overvoltage being provided between the trigger of the triac and the opposite output terminal.
L'invention est représentée à titre d'exemple non limitatif sur les dessins ci-joints dans lesquels
- la figure 1 est une vue d'un circuit d'alimentation connu de lampes basse tension disposées en série,
- la figure 2 représente le schéma d'un dispositif de commutation connu, mis en oeuvre suivant la figure 1,
- la figure 3 représente le dispositif de commutation du circuit d'alimentation conforme à l'invent ion.The invention is shown by way of non-limiting example in the accompanying drawings in which
FIG. 1 is a view of a known supply circuit of low voltage lamps arranged in series,
FIG. 2 represents the diagram of a known switching device, implemented according to FIG. 1,
- Figure 3 shows the switching device of the supply circuit according to the invention.
La présente invention a en conséquence pour but la réalisation d'un circuit d'alimentation de lampes basse tension disposées en série, qui soit de construction simple, de fonctionnement sûr, de coût réduit et d'un encombrement minimum. The object of the present invention is therefore to provide a circuit for supplying low-voltage lamps arranged in series, which is of simple construction, of secure operation, of reduced cost and of minimum bulk.
Suivant l'invention (voir figure 3), il est prévu un triac 9 dont les bornes d'entrée 91 et de sortie 92 sont reliées aux bornes de la lampe 1, la commande de ce triac par l'intermédiaire de sa gâchette 93 étant obtenue à partir d'une diode Transil 10 disposée entre cette gâchette 93 et la borne de sortie opposée 92. Dans ce circuit, lorsque l'une des lampes 1 est défectueuse et que la totalité de la tension d'alimentation du circuit est appliquée aux bornes de cette lampe et donc du triac, la diode Transil agit sur la gâchette du triac dès l'instant où la tension apparaissant sur la borne de sortie 92 du triac devient supérieure à la tension produisant la conduction de cette diode Transil. According to the invention (see FIG. 3), a triac 9 is provided, the input 91 and output 92 terminals of which are connected to the terminals of the lamp 1, the control of this triac by means of its trigger 93 being obtained from a Transil diode 10 disposed between this trigger 93 and the opposite output terminal 92. In this circuit, when one of the lamps 1 is defective and that the entire supply voltage of the circuit is applied to the terminals of this lamp and therefore of the triac, the Transil diode acts on the triac trigger as soon as the voltage appearing on the output terminal 92 of the triac becomes greater than the voltage producing the conduction of this Transil diode.
Dans ce circuit, la diode Transil mise en oeuvre sera choisie parmi celles dont la conduction s'établit pour une tension supérieure à la tension normale d'alimentation apparaissant aux bornes de la lampe considérée. In this circuit, the Transil diode used will be chosen from those whose conduction is established for a voltage greater than the normal supply voltage appearing at the terminals of the lamp considered.
Ce montage constitue donc un dispositif de commutation à déclenchement automatique. This arrangement therefore constitutes an automatically triggered switching device.
Ce résultat est obtenu du fait que s'agissant de lampes disposées en série, lorsque l'une d'entre elles est défectueuse, la tension qui apparaît à cette borne est très nettement supérieure à la tension normale d'utilisation de cette lampe, si bien que pour l'une des alternances de la tension d'alimentation, la diode Transil devient immédiatement conductrice pour commander la gâchette et rendre conducteur le triac. This result is obtained from the fact that in the case of lamps arranged in series, when one of them is defective, the voltage which appears at this terminal is very much higher than the normal operating voltage of this lamp, if although for one of the alternations of the supply voltage, the Transil diode immediately becomes conductive to control the trigger and make the triac conductive.
Les autres lampes du circuit série sont donc alimentées avec une très légère surtension, du fait de la dérivation créée par le triac rendu conducteur. The other lamps in the series circuit are therefore supplied with a very slight overvoltage, due to the bypass created by the triac made conductive.
Les surintensités sont par ailleurs évitées dans ce circuit, du fait de la présence d'un limiteur de courant en série avec les lampes. Overcurrents are also avoided in this circuit, due to the presence of a current limiter in series with the lamps.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9007082A FR2663183B1 (en) | 1990-06-07 | 1990-06-07 | LOW VOLTAGE LAMP SUPPLY CIRCUIT ARRANGED IN SERIES. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9007082A FR2663183B1 (en) | 1990-06-07 | 1990-06-07 | LOW VOLTAGE LAMP SUPPLY CIRCUIT ARRANGED IN SERIES. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2663183A1 true FR2663183A1 (en) | 1991-12-13 |
FR2663183B1 FR2663183B1 (en) | 1997-04-11 |
Family
ID=9397368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9007082A Expired - Fee Related FR2663183B1 (en) | 1990-06-07 | 1990-06-07 | LOW VOLTAGE LAMP SUPPLY CIRCUIT ARRANGED IN SERIES. |
Country Status (1)
Country | Link |
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FR (1) | FR2663183B1 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2700074A1 (en) * | 1992-12-29 | 1994-07-01 | David Francis | Feed mechanism for number of low voltage bulbs |
AT403869B (en) * | 1994-02-15 | 1998-06-25 | Spindelbalker Manfred Ing | Circuit arrangement |
WO2003030593A1 (en) * | 2001-09-29 | 2003-04-10 | Ye, Min | Fluorescent lamp capable of starting with at least one broken filament |
US6580182B2 (en) * | 1995-06-26 | 2003-06-17 | Jlj, Inc. | Series connected light string with filament shunting |
US6597125B2 (en) | 2001-05-17 | 2003-07-22 | Jlj, Inc. | Voltage regulated light string |
DE19781744B4 (en) * | 1996-05-28 | 2006-03-02 | Stay Lit International, Inc., Dayton | Series connected fairy lights with filament resistance |
US7178961B2 (en) | 1995-06-26 | 2007-02-20 | Jlj, Inc. | Voltage regulated light string |
US7279809B2 (en) | 1995-06-26 | 2007-10-09 | Jlj, Inc. | Christmas light string with single Zener shunts |
US7732942B2 (en) | 1995-06-26 | 2010-06-08 | Jlj, Inc. | Flasher bulbs with shunt wiring for use in series connected light string with filament shunting in bulb sockets |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0025404A2 (en) * | 1979-09-11 | 1981-03-18 | Raymond Lautesse | Short-circuiting element for series supply circuit |
EP0284592A1 (en) * | 1987-03-19 | 1988-09-28 | S.A. By-Pass Control | Device allowing the restoration of the line courant in case of the burning out of one or several elements of a series arrangement |
-
1990
- 1990-06-07 FR FR9007082A patent/FR2663183B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0025404A2 (en) * | 1979-09-11 | 1981-03-18 | Raymond Lautesse | Short-circuiting element for series supply circuit |
EP0284592A1 (en) * | 1987-03-19 | 1988-09-28 | S.A. By-Pass Control | Device allowing the restoration of the line courant in case of the burning out of one or several elements of a series arrangement |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2700074A1 (en) * | 1992-12-29 | 1994-07-01 | David Francis | Feed mechanism for number of low voltage bulbs |
AT403869B (en) * | 1994-02-15 | 1998-06-25 | Spindelbalker Manfred Ing | Circuit arrangement |
US6580182B2 (en) * | 1995-06-26 | 2003-06-17 | Jlj, Inc. | Series connected light string with filament shunting |
US6765313B2 (en) | 1995-06-26 | 2004-07-20 | Jlj, Inc. | Series connected light string with filament shunting |
US7042116B2 (en) | 1995-06-26 | 2006-05-09 | Jlj, Inc. | Series connected light string with filament shunting |
US7178961B2 (en) | 1995-06-26 | 2007-02-20 | Jlj, Inc. | Voltage regulated light string |
US7279809B2 (en) | 1995-06-26 | 2007-10-09 | Jlj, Inc. | Christmas light string with single Zener shunts |
US7342327B2 (en) | 1995-06-26 | 2008-03-11 | Jlj, Inc. | Series connected light string with filament shunting |
US7732942B2 (en) | 1995-06-26 | 2010-06-08 | Jlj, Inc. | Flasher bulbs with shunt wiring for use in series connected light string with filament shunting in bulb sockets |
DE19781744B4 (en) * | 1996-05-28 | 2006-03-02 | Stay Lit International, Inc., Dayton | Series connected fairy lights with filament resistance |
US6597125B2 (en) | 2001-05-17 | 2003-07-22 | Jlj, Inc. | Voltage regulated light string |
WO2003030593A1 (en) * | 2001-09-29 | 2003-04-10 | Ye, Min | Fluorescent lamp capable of starting with at least one broken filament |
Also Published As
Publication number | Publication date |
---|---|
FR2663183B1 (en) | 1997-04-11 |
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Effective date: 20100226 |