EP0488002A1 - Process and device for operating discharge lamps through electronic ballasts - Google Patents

Process and device for operating discharge lamps through electronic ballasts Download PDF

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Publication number
EP0488002A1
EP0488002A1 EP91119588A EP91119588A EP0488002A1 EP 0488002 A1 EP0488002 A1 EP 0488002A1 EP 91119588 A EP91119588 A EP 91119588A EP 91119588 A EP91119588 A EP 91119588A EP 0488002 A1 EP0488002 A1 EP 0488002A1
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EP
European Patent Office
Prior art keywords
discharge lamps
gas discharge
electronic ballasts
controlling gas
lamp
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Granted
Application number
EP91119588A
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German (de)
French (fr)
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EP0488002B1 (en
Inventor
Walter Senator H.C. Dr.H.C.Ing. Holzer
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    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • 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
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/40—Controlling the intensity of light discontinuously
    • H05B41/42—Controlling the intensity of light discontinuously in two steps only
    • 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
    • H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
    • H05B47/10—Controlling the light source
    • H05B47/175—Controlling the light source by remote control
    • H05B47/185—Controlling the light source by remote control via power line carrier transmission

Definitions

  • Gas discharge lamps with electronic ballasts are preferred because of their low power consumption compared to conventional incandescent lamps with the same luminous efficacy. For example, fluorescent lamps with about 20% power consumption can achieve the same luminous efficiency.
  • immers are also used to reduce the brightness of the lamps. This desire exists not only to save additional energy, but also to reduce the illuminance e.g. B. set in the night.
  • the object of the invention is to be able to select a reduced light intensity in addition to a maximum light intensity in a simple manner.
  • bistable switching system flip-flop
  • the two switching states correspond to different lamp currents and thus different brightness values.
  • Such a flip-flop system can advantageously be accommodated in a simple manner in the electronic ballast.
  • bistable switching system controls several electronic ballasts in groups.
  • the invention further proposes a short-time switch, for. B. in the form of a push button in the circuit, which interrupts so briefly that the lamp does not go out, but the bistable switching system responds to the interruption.
  • Figure 1 shows an example embodiment in a schematic representation of how a device according to the invention could be constructed.
  • the gas discharge lamp (lamp 1) is connected to the network R, S via an electronic ballast.
  • the bistable switching system 6 In between is the bistable switching system 6 and a light switch 8 with which the lamp 1 can be switched on. As soon as the switch 8 is opened briefly after the first switch-on, the bistable switching system switches to its second switching position and thus influences the lamp current through the lamp 1 via the electronic ballast 2.
  • a short-term interrupter is arranged as a button 13 in the feed line R, which z. B. can be designed as a push button. If this button 13 is actuated, there is a power interruption in the millisecond range, short enough to avoid lamp 1 from being annoyingly extinguished, but long enough to allow bistable switching system 6 to respond.
  • a control element 10 is provided which, in the manner of a "dimmer", reduces the lamp current as desired.
  • FIG. 2 shows a group arrangement with, for example, 3 lamps 1, which are supplied by the electronic ballasts 3, 4 and 5.
  • the bistable switching system 7 acts on all 3 electronic ballasts 3, 4 and 5, however, a separate control element 11 is provided for setting the reduced brightness for the electronic ballast 3.
  • control element 12 acts as a group on the electronic ballasts 4 and 5.
  • bistable switching system 6, 7 can be integrated in the electronic ballasts 2, 3, 4, 5 or in one of the same.
  • control elements 10, 11, 12 could also be integrated in the electronic ballasts.
  • This exemplary embodiment shows the mode of operation of the switching system 6, 7 on a ballast 27 which contains a stray field transformer 30.
  • ballast 27 can be replaced by appropriate capacitive elements in connection with semiconductor switches.
  • the field of application of the present invention thus extends not only to a ballast 27 with a stray field transformer 30, but to ballasts of any type, regardless of their construction in detail.
  • a lamp housing which carries a translucent lens 22.
  • a fluorescent lamp 23 with preheatable electrodes 24, 25 and a reflector 26 is arranged in the housing.
  • the lamp 23 is connected to an electrical lead via a ballast 27 and a switch 39.
  • a winding 29 connected to the lamp circuit is used to operate the fluorescent lamp 23 with reduced brightness.
  • a stray field transformer 30 with primary winding 31, secondary winding 32 for the lamp 23 and secondary heating winding 33, 34 for the lamp electrodes 24, 25 are in the lamp housing as well as the winding 29, which is arranged in series with the secondary winding 32 of the stray field transformer.
  • the windings of the stray field transformer 30 are arranged on a jacket core, with scattering paths 36, 37 being arranged between the primary winding 31 connected to the input terminals E 1, E 2 and the windings 32, 33, 34.
  • the ends of the heating windings 33, 34 are connected to the terminals H1 to H4, which in turn are connected via conductors to the electrodes 24, 25 of the fluorescent lamp.
  • the electrical supply line to the lamp housing is expediently provided with a mains plug 28.
  • the winding 29 is preferably connected to one end of the secondary winding 32 for the lamp and to one end of the heating winding 33 and can be bridged by a switch 38.
  • the winding 29 is expediently designed as a choke 41 with a closed magnetic core and accommodated in the ballast 27.
  • the winding ends of the choke 41 are connected to the terminals S1, S2.
  • One end of the secondary winding 32 of the stray field transformer 30 is also connected to the terminal S 1 and one end of the heating winding 33 is connected to the terminal S 2 via the terminal H 3.
  • the switch 28, which is attached to the lamp housing, is closed to achieve full brightness, so that the inductance 29 is bridged.
  • the lamp electrodes 24, 25 are strongly preheated.
  • the fluorescent lamp 23 is then ignited by the stray field transformer only after sufficient preheating.
  • the duration of the preheating adapts to the respective ambient temperature. After the lamp is ignited, the heating current drops. If the lamp is operated with full brightness, the heating current is reduced to a level which does not impair the life of the lamp. When the brightness is reduced, the preheating increases again automatically, so that the electrodes are sufficiently heated even in low-load operation.

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  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

A method and device for controlling gas discharge lamps having electronic ballasts uses a bistable changeover switching system in the circuit such that the bistable changeover switching system moves into a first switching state when the lamp is switched on and moves into a second switching state in the event of a short interruption in the circuit for supplying power to the lamp. In this way, it is possible to reduce the brightness of the lamp from a first brightness level to a second, lower brightness level. Such a "dimmer" is used in fluorescent lamps. <IMAGE>

Description

Gasentladungslampen mit elektronischen Vorschaltgeräten werden bevorzugt wegen des geringen Stromverbrauches gegenüber herkömmlichen Glühlampen bei gleicher Lichtausbeute eingesetzt. Beispielsweise kann man bei Leuchtstofflampen mit etwa 20 % Stromverbrauch die gleiche Lichtausbeute erzielen.Gas discharge lamps with electronic ballasts are preferred because of their low power consumption compared to conventional incandescent lamps with the same luminous efficacy. For example, fluorescent lamps with about 20% power consumption can achieve the same luminous efficiency.

In vielen Fällen werden zusätzlich sog. "Dimmer" verwendet, um die Helligkeit der Lampen zu reduzieren. Dieser Wunsch besteht nicht nur um zusätich Energie zu sparen, sondern auch um eine reduzierte Beleuchtungsstärke z. B. in den Nachtstunden einzustellen.In many cases, so-called "dimmers" are also used to reduce the brightness of the lamps. This desire exists not only to save additional energy, but also to reduce the illuminance e.g. B. set in the night.

Solche "Dimmer" sind aufwendig und erfordern eine zusätzliche Installation, vor allem wenn sie nachträglich in ein vorhandenes Beleuchtungssystem eingefügt werden sollen. Die Erfindung hat die Aufgabe, in einfacher Weise neben einer maximalen Lichtstärke eine reduzierte Lichtstärke wählen zu können.Such "dimmers" are complex and require additional installation, especially if they are to be subsequently added to an existing lighting system. The object of the invention is to be able to select a reduced light intensity in addition to a maximum light intensity in a simple manner.

Erfindungsgemäß wird das dadurch erreicht, daß im Stromkreis ein bistabiles Umschaltsystem (Flip-Flop) vorhanden ist, welches beim Einschalten der Lampe in einen ersten Schaltzustand und bei einer kurzen Unterbrechung des Stromkreises in einen zweiten Schaltzustand gelangt und sofort bei jeder kurzen Stromunterbrechung tritt also ein Wechsel zwischen den beiden Schaltzuständen auf.According to the invention this is achieved in that a bistable switching system (flip-flop) is present in the circuit, which comes into a first switching state when the lamp is switched on and into a second switching state when the circuit is briefly interrupted, and thus occurs immediately with every brief current interruption Change between the two switching states.

Erfindungsgemäß entsprechen die beiden Schaltzustände verschiedenen Lampenströmen und somit verschiedenen Helligkeitswerten.According to the invention, the two switching states correspond to different lamp currents and thus different brightness values.

Bei einer längeren Unterbrechung des Stromes z. B. über eine Sekunde schaltet das bistabile Umschaltsystem wieder in den Ausgangszustand zurück.With a longer interruption of the current z. B. over a second switches the bistable switching system back into the Initial state back.

Ein solches Flip-Flop-System kann in einfacher Weise vorteilhaft im elektronischen Vorschaltgerät untergebracht werden.Such a flip-flop system can advantageously be accommodated in a simple manner in the electronic ballast.

Da normalerweise beim Einschalten die größere Helligkeit erwünscht ist, wird erfindungsgemäß empfohlen, daß immer beim Einschalten der maximale Stromwert erreicht wird und eine Reduzierung erst mit einer kurzen Stromunterbrechung eingeschaltet wird.Since the greater brightness is normally desired when switching on, it is recommended according to the invention that the maximum current value is always reached when switching on and a reduction is only switched on with a short power interruption.

Je nach Bedarf sind oft verschiedene reduzierte Stromwerte erwünscht. Daher wird erfindungsgemäß vorgesehen, daß ein Regelelement vorhanden ist, mit dem der reduzierte Stromwert einstellbar ist.Depending on the requirements, various reduced current values are often desired. It is therefore provided according to the invention that a control element is present with which the reduced current value can be set.

Aus Einsparungsgründen wird auch empfohlen, daß ein bistabiles Umschaltsystem mehrere elektronische Vorschaltgeräte in Gruppen steuert.For reasons of savings, it is also recommended that a bistable switching system controls several electronic ballasts in groups.

Bei größeren Anlagen ist es auch u. U. erwünscht, bei in Gruppen gesteuerten Vorschaltgeräten die reduzierten Stromwerte einzeln oder in Gruppen mit Regelelementen einstellbar zu machen.With larger systems it is also possible. It may be desirable to make the reduced current values adjustable individually or in groups with control elements in ballasts controlled in groups.

Um ein kurzzeitiges Erlöschen der Lampen beim Umschalten auf den zweiten Schaltzustand zu vermeiden, wird erfindungsgemäß ferner vorgeschlagen, einen Kurzzeitschalter, z. B. in Form einer Drucktaste in den Stromkreis zu legen, der so kurzzeitig unterbricht, daß die Lampe nicht erlöscht, aber das bistabile Umschaltsystem auf die Unterbrechung anspricht.In order to avoid a brief extinction of the lamps when switching to the second switching state, the invention further proposes a short-time switch, for. B. in the form of a push button in the circuit, which interrupts so briefly that the lamp does not go out, but the bistable switching system responds to the interruption.

Der Erfindungsgegenstand der vorliegenden Erfindung ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch aus der Kombination der einzelnen Patentansprüche untereinander. Alle in den Unterlagen, einschließlich der Zusammenfassung, offenbarten Angaben und Merkmale, insbesondere die in den Zeichnungen dargestellte räumliche Ausbildung werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another. All in the documentation, including The summary, disclosed information and features, in particular the spatial design shown in the drawings, are claimed as essential to the invention, insofar as they are new to the prior art, individually or in combination.

Im folgenden wird die Erfindung anhand von mehrere Ausführungswege darstellende Zeichnungen näher erläutert. Hierbei gehen aus den Zeichnungen und ihrer Beschreibung weitere erfindungswesentliche Merkmale und Vorteile der Erfindung hervor.In the following, the invention is explained in more detail with reference to drawings showing several possible embodiments. Further features and advantages of the invention which are essential to the invention emerge from the drawings and their description.

Es zeigen:

Figur 1:
schematisierte Darstellung der Einrichtung nach der Erfindung
Figur 2:
eine weitere Ausführungsform einer Einrichtung nach der Erfindung in Gruppenanordnung
Figur 3:
schematisiert ein drittes Ausführungsbeispiel der Erfindung mit Angabe weiterer Details
Show it:
Figure 1:
Schematic representation of the device according to the invention
Figure 2:
a further embodiment of a device according to the invention in a group arrangement
Figure 3:
schematically a third embodiment of the invention with details

Figur 1 zeigt eine beispielsweise Ausführung in schematischer Darstellung, wie eine erfindungsgemäße Einrichtung aufgebaut sein könnte.Figure 1 shows an example embodiment in a schematic representation of how a device according to the invention could be constructed.

Die Gasentladungslampe (Lampe 1) wird über ein elektronisches Vorschaltgerät an das Netz R, S angeschlossen. Dazwischen liegt das bistabile Umschaltsystem 6 und ein Lichtschalter 8, mit dem die Lampe 1 eingeschaltet werden kann. Sobald nach einem ersten Einschalten der Schalter 8 kurzzeitig geöffnet wird, schaltet das bistabile Umschaltsystem in seine zweite Schaltlage und beeinflußt damit über das elektronische Vorschaltgerät 2 den Lampenstrom durch die Lampe 1.The gas discharge lamp (lamp 1) is connected to the network R, S via an electronic ballast. In between is the bistable switching system 6 and a light switch 8 with which the lamp 1 can be switched on. As soon as the switch 8 is opened briefly after the first switch-on, the bistable switching system switches to its second switching position and thus influences the lamp current through the lamp 1 via the electronic ballast 2.

Um eine sichtbare störende Unterbrechung des Lichtes zu vermeiden oder zumindest zu reduzieren, ist in der Zuleitung R ein Kurzzeitunterbrecher als Taste 13 angeordnet, der z. B. als Drucktaste ausgeführt sein kann. Wird diese Taste 13 betätigt, so erfolgt eine Stromunterbrechung im Millisekundenbereich, kurz genug, um ein störendens Erlöschen der Lampe 1 zu vermeiden, aber lang genug, um das bistabile Umschaltsystem 6 ansprechen zu lassen.In order to avoid or at least reduce a visible disturbing interruption of the light, a short-term interrupter is arranged as a button 13 in the feed line R, which z. B. can be designed as a push button. If this button 13 is actuated, there is a power interruption in the millisecond range, short enough to avoid lamp 1 from being annoyingly extinguished, but long enough to allow bistable switching system 6 to respond.

Um die reduzierte Helligkeit der Lampe 1 einstellen zu können, ist ein Regelelement 10 vorgesehen, welches in Art eines "Dimmers" den Lampenstrom wunschgemäß reduziert.In order to be able to set the reduced brightness of the lamp 1, a control element 10 is provided which, in the manner of a "dimmer", reduces the lamp current as desired.

Figur 2 zeigt eine Gruppenanordnung mit beispielsweise 3 Lampen 1, welche von den elektronischen Vorschaltgeräten 3, 4 und 5 versorgt werden. Das bistabile Umschaltsystem 7 beaufschlagt alle 3 elektronischen Vorschaltgeräte 3, 4 und 5, hingegen ist für das elektronische Vorschaltgerät 3 ein getrenntes Regelelement 11 zur Einstellung der reduzierten Helligkeit vorgesehen.FIG. 2 shows a group arrangement with, for example, 3 lamps 1, which are supplied by the electronic ballasts 3, 4 and 5. The bistable switching system 7 acts on all 3 electronic ballasts 3, 4 and 5, however, a separate control element 11 is provided for setting the reduced brightness for the electronic ballast 3.

Das Regelelement 12 beaufschlagt hingegen als Gruppe die elektronischen Vorschaltgeräte 4 und 5.In contrast, the control element 12 acts as a group on the electronic ballasts 4 and 5.

Die beiden beschriebenen Anordnungsbeispiele können naturgemäß beliebig variiert werden, insbesondere wenn z. B das bistabile Umschaltsystem 6, 7 in die elektronischen Vorschaltgeräte 2, 3, 4, 5 oder in eines derselben integriert werden kann.The two arrangement examples described can of course be varied as desired, especially when e.g. B the bistable switching system 6, 7 can be integrated in the electronic ballasts 2, 3, 4, 5 or in one of the same.

Auch die Regelelemente 10, 11, 12 könnten in den elektronischen Vorschaltgeräten integriert werden.The control elements 10, 11, 12 could also be integrated in the electronic ballasts.

Im Ausführungsbeispiel nach Figur 3 ist das bistabile Umschaltsystem, welches anhand der Figuren 1 und 2 erläutert wurde, als Schalter 38 symbolisiert.In the exemplary embodiment according to FIG. 3, the bistable switching system, which was explained with reference to FIGS. 1 and 2, is symbolized as switch 38.

Dieses Ausführungsbeispiel zeigt die Wirkungsweise des Umschaltsystems 6, 7 auf ein Vorschaltgerät 27, welches einen Streufeldtransformator 30 enthält.This exemplary embodiment shows the mode of operation of the switching system 6, 7 on a ballast 27 which contains a stray field transformer 30.

Es versteht sich von selbst, daß dieses Ausführungsbeispiel nur beispielhaft zu verstehen ist, d. h. nach moderner Technik kann das gesamte Vorschaltgerät 27 durch entsprechende kapazitive Elemente in Verbindung mit Halbleiter-Schaltern ersetzt werden. Der Anwendungsbereich der vorliegenden Erfindung erstreckt sich also nicht nur auf ein Vorschaltgerät 27 mit einem Streufeldtransformator 30, sondern auf beliebig geartete Vorschaltgeräte, ungeachtet deren Konstruktion im einzelnen.It goes without saying that this embodiment is to be understood only as an example, i. H. According to modern technology, the entire ballast 27 can be replaced by appropriate capacitive elements in connection with semiconductor switches. The field of application of the present invention thus extends not only to a ballast 27 with a stray field transformer 30, but to ballasts of any type, regardless of their construction in detail.

Mit 21 ist ein Leuchtengehäuse bezeichnet, das eine lichtdurchlässige Abschlußscheibe 22 trägt. In dem Gehäuse ist eine Leuchtstofflampe 23 mit vorheizbaren Elektroden 24, 25 und ein Reflektor 26 angeordnet. Die Lampe 23 ist über ein Vorschaltgerät 27 und einen Schalter 39 mit einer elektrischen Zuleitung verbunden. Zum Betrieb der Leuchtstofflampe 23 mit herabgesetzter Helligkeit dient eine in den Lampenstromkreis eingeschaltete Wicklung 29. Bei der neuen Anordnung sind in dem Leuchtengehäuse ein Streufeldtransformator 30 mit Primärwicklung 31, Sekundärwicklung 32 für die Lampe 23 und sekundären Heizwicklung 33, 34 für die Lampenelektroden 24, 25 sowie die Wicklung 29 untergebracht, die in Reihe mit der Sekundärwicklung 32 des Streufeldtransformators angeordnet ist. Die Wicklungen des Streufeldtransformators 30 sind auf einem Mantelkern angeordnet, wobei zwischen der an die Eingangsklemmen E₁, E₂ angeschlossenen Primärwicklung 31 und den Wicklungen 32, 33, 34 Streupfade 36, 37 angeordnet sind. Die Enden der Heizwicklungen 33, 34 sind an die Klemmen H₁ bis H₄ geführt, die ihrerseits über Leiter mit den Elektroden 24, 25 der Leuchtstofflampe verbunden sind. Die elektrische Zuleitung zu dem Leuchtengehäuse ist zweckmäßigerweise mit einem Netzstecker 28 versehen.With 21 a lamp housing is designated, which carries a translucent lens 22. A fluorescent lamp 23 with preheatable electrodes 24, 25 and a reflector 26 is arranged in the housing. The lamp 23 is connected to an electrical lead via a ballast 27 and a switch 39. A winding 29 connected to the lamp circuit is used to operate the fluorescent lamp 23 with reduced brightness. In the new arrangement, a stray field transformer 30 with primary winding 31, secondary winding 32 for the lamp 23 and secondary heating winding 33, 34 for the lamp electrodes 24, 25 are in the lamp housing as well as the winding 29, which is arranged in series with the secondary winding 32 of the stray field transformer. The windings of the stray field transformer 30 are arranged on a jacket core, with scattering paths 36, 37 being arranged between the primary winding 31 connected to the input terminals E 1, E 2 and the windings 32, 33, 34. The ends of the heating windings 33, 34 are connected to the terminals H₁ to H₄, which in turn are connected via conductors to the electrodes 24, 25 of the fluorescent lamp. The electrical supply line to the lamp housing is expediently provided with a mains plug 28.

Vorzugsweise ist die Wicklung 29 mit einem Ende der Sekundärwicklung 32 für die Lampe sowie mit einem Ende der Heizwicklung 33 verbunden und durch einen Schalter 38 überbrückbar. Die Wicklung 29 ist zweckmäßigerweise als Drossel 41 mit geschlossenem Magnetkern ausgebildet und in dem Vorschaltgerät 27 untergebracht. Die Wicklungsenden der Drossel 41 sind dabei mit den Klemmen S₁, S₂ verbunden. An die Klemme S₁ ist ferner ein Ende der Sekundärwicklung 32 des Streufeldtransformators 30 und an die Klemme S₂ ein Ende der Heizwicklung 33 über die Klemme H₃ angeschlossen. Der Schalter 28, der am Leuchtengehäuse angebracht ist, wird zur Erzielung der vollen Helligkeit geschlossen, so daß die Induktivität 29 überbrückt ist.The winding 29 is preferably connected to one end of the secondary winding 32 for the lamp and to one end of the heating winding 33 and can be bridged by a switch 38. The winding 29 is expediently designed as a choke 41 with a closed magnetic core and accommodated in the ballast 27. The winding ends of the choke 41 are connected to the terminals S₁, S₂. One end of the secondary winding 32 of the stray field transformer 30 is also connected to the terminal S 1 and one end of the heating winding 33 is connected to the terminal S 2 via the terminal H 3. The switch 28, which is attached to the lamp housing, is closed to achieve full brightness, so that the inductance 29 is bridged.

Wird der Stecker 28 in eine spannungsführende Steckdose eingeführt und der Schalter 39 eingeschaltet, so werden die Lampen-Elektroden 24, 25 stark vorgeheizt. Die Leuchtstofflampe 23 wird dann durch den Streufeldtransformator erst nach ausreichender Vorheizung selbsttätig gezündet. Dabei paßt sich die Dauer der Vorheizung an die jeweilige Umgebungstemperatur an. Nach der Zündung der Lampe sinkt der Heizstrom ab. Wird die Lampe mit voller Heligkeit betrieben, so geht der Heizstrom auf ein die Lebensdauer der Lampe nicht beeinträchtigendes Maß zurück. Bei herabgesetzter Helligkeit steigt die Vorheizung selbsttäig wieder an, so daß auch im Schwachlastbetrieb die Elektroden genügend beheizt werden.If the plug 28 is inserted into a live socket and the switch 39 is switched on, the lamp electrodes 24, 25 are strongly preheated. The fluorescent lamp 23 is then ignited by the stray field transformer only after sufficient preheating. The duration of the preheating adapts to the respective ambient temperature. After the lamp is ignited, the heating current drops. If the lamp is operated with full brightness, the heating current is reduced to a level which does not impair the life of the lamp. When the brightness is reduced, the preheating increases again automatically, so that the electrodes are sufficiently heated even in low-load operation.

Es wird also nochmals darauf hingewiesen, daß das vorher als bistabiles Umschaltsystem 6, 7 beschriebene System im Ausführungsbeispiel nach Figur 3 durch einen Schalter symbolisiert ist.It is again pointed out that the system previously described as a bistable switching system 6, 7 is symbolized in the exemplary embodiment according to FIG. 3 by a switch.

Die angegebenen Anordnungen sind schaltungstechnisch beliebig zu variieren, soweit sie den beschreibenen Zweck erfüllt.The specified arrangements can be varied in terms of circuitry as long as they serve the described purpose.

Besondere Bedeutung kommt der Verwendung der Erfindungsidee Leuchtstofflampen zu, da diese Lampen normalerweise nicht über "Dimmer" oder ähnliche Maßnahmen in ihrer Helligkeit beeinflußt werden können.The use of the inventive idea of fluorescent lamps is of particular importance since the brightness of these lamps cannot normally be influenced by "dimmers" or similar measures.

ZEICHNUNGSLEGENDEDRAWING LEGEND

11
GasentladungslampeGas discharge lamp
33rd
VorschaltgerätBallast
44th
VorschaltgerätBallast
55
VorschaltgerätBallast
66
UmschaltsystemSwitching system
77
bistabiles Umschaltsystembistable switching system
88th
Schaltercounter
1010th
RegelelementControl element
1111
RegelelementControl element
1212
RegelelementControl element
1313
KurzzeitunterbrecherShort-term breaker
2121
LeuchtengehäuseLuminaire housing
2222
AbschlußscheibeCover lens
2323
LeuchtstofflampeFluorescent lamp
2424th
Elektrodeelectrode
2525th
Elektrodeelectrode
2626
Reflektorreflector
2727th
VorschaltgerätBallast
2828
NetzsteckerPower plug
2929
WicklungWinding
3030th
StreufeldtransformatorStray field transformer
3131
PrimärwicklungPrimary winding
3232
SekundärwicklungSecondary winding
3333
sek. Heizwicklungsec. Heating coil
3434
sek. Heizwicklungsec. Heating coil
3636
StreupfadScattering path
3737
StreupfadScattering path
3838
Schaltercounter
3939
Schaltercounter
4141
Drosselthrottle

Claims (9)

Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten, dadurch gekennzeichnet, daß ein bistabiles Umschaltsystem (Flip-Flop) (6) im Stromkreis vorhanden ist, welches beim Einschalten der Lampe in einem ersten Schaltzustand und bei einer kurzen Unterbrechung des Stromkreises in einen zweiten Schaltzustand gelangt usw.Method and device for controlling gas discharge lamps with electronic ballasts, characterized in that a bistable switching system (flip-flop) (6) is present in the circuit, which when the lamp is switched on in a first switching state and when the circuit is briefly interrupted into a second Switching state etc. Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach Anspruch 1, dadurch gekennzeichnet, daß die beiden Schaltzustände verschiedenen Lampenströmen entsprechen.Method and device for controlling gas discharge lamps with electronic ballasts according to claim 1, characterized in that the two switching states correspond to different lamp currents. Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß bei längerer Unterbrechung des Stromes z. B. über 1 Sekunde das bistabile Umschaltsystem (6) in den Ausgangszustand zurückschaltet.Method and device for controlling gas discharge lamps with electronic ballasts according to claim 1 or 2, characterized in that with a longer interruption of the current z. B. switches the bistable switching system (6) back to the initial state for more than 1 second. Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, daß das bistabile Umschaltsystem (6) Teil des elektronischen Vorschaltgerätes (2) ist.Method and device for controlling gas discharge lamps with electronic ballasts according to claim 1, 2 or 3, characterized in that the bistable switching system (6) is part of the electronic ballast (2). Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß beim Einschalten immer der maximale Stromwert eingeschaltet wird.Method and device for controlling gas discharge lamps with electronic ballasts according to one or more of the preceding claims, characterized in that the maximum current value is always switched on when switched on. Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein Regelelement (10) vorhanden ist, mit dem der reduzierte Stromwert einstellbar ist.Method and device for controlling gas discharge lamps with electronic ballasts according to one or more of the preceding claims, characterized in that a control element (10) is provided with which the reduced current value can be set. Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein bistabiles Umschaltsystem (7) mehrere der Vorschaltgeräte (3,4,5) in Gruppen steuert.Method and device for controlling gas discharge lamps with electronic ballasts according to one or more of the preceding claims, characterized in that a bistable switching system (7) controls several of the ballasts (3, 4, 5) in groups. Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß bei mehreren in Gruppen gesteuerten Vorschaltgeräten die reduzierten Stromwerte einzeln oder in Gruppen mit Regelelementen (11,12) einstellbar sind.Method and device for controlling gas discharge lamps with electronic ballasts according to one or more of the preceding claims, characterized in that, in the case of several ballasts controlled in groups, the reduced current values can be set individually or in groups with control elements (11, 12). Verfahren und Einrichtung zur Steuerung von Gasentladungslampen mit elektronischen Vorschaltgeräten nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein Kurzzeitunterbrecher (13) im Stromkreis vorhanden ist.Method and device for controlling gas discharge lamps with electronic ballasts according to one or more of the preceding claims, characterized in that a short-term interrupter (13) is present in the circuit.
EP91119588A 1990-11-29 1991-11-16 Process and device for operating discharge lamps through electronic ballasts Expired - Lifetime EP0488002B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4037948A DE4037948A1 (en) 1990-11-29 1990-11-29 METHOD AND DEVICE FOR CONTROLLING GAS DISCHARGE LAMPS WITH ELECTRONIC CONTROL GEAR
DE4037948 1990-11-29

Publications (2)

Publication Number Publication Date
EP0488002A1 true EP0488002A1 (en) 1992-06-03
EP0488002B1 EP0488002B1 (en) 1995-06-07

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EP91119588A Expired - Lifetime EP0488002B1 (en) 1990-11-29 1991-11-16 Process and device for operating discharge lamps through electronic ballasts

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EP (1) EP0488002B1 (en)
JP (1) JP2651764B2 (en)
CN (1) CN1063791A (en)
AT (1) ATE123616T1 (en)
DE (2) DE4037948A1 (en)

Cited By (9)

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EP0551474A1 (en) * 1991-07-31 1993-07-21 Motorola Lighting Inc. Control circuit
EP0654156A1 (en) * 1993-05-04 1995-05-24 Motorola Lighting Inc. Toggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lamps
US5477113A (en) * 1994-09-30 1995-12-19 Toroid Hong Kong Limited Apparatus for applying a variable voltage to an electric load
NL1002842C2 (en) * 1996-04-11 1997-10-15 Netherlands Car Bv Lamp driver circuit.
EP0818944A1 (en) * 1996-07-09 1998-01-14 Rudolf Schmidt Device for controlling the intensity of light especially of a pocket light
EP0866646A2 (en) * 1997-03-18 1998-09-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Process and circuit for operating at least one discharge lamp
WO1999044397A1 (en) * 1998-02-28 1999-09-02 Desmond Charles Drummond Lights
WO2004068532A2 (en) * 2003-01-30 2004-08-12 Koninklijke Philips Electronics N.V. Fluorescent lamp with a second ballast for dimmed lighting mode
NL1032407C2 (en) * 2005-09-02 2007-08-08 Yu-Sheng So A reversible dimmer for gas discharge lamps and control method for adjusting the light thereof.

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DE4441140A1 (en) * 1994-11-18 1996-05-30 Hilite Lighting And Electronic Dimming circuit for fluorescent lamps
DE19502772C2 (en) * 1995-01-30 2002-02-28 Walter Holzer Electronic ballast for fluorescent lamps
DE19515592A1 (en) * 1995-05-02 1996-11-07 Walter Holzer Soft-start gas-discharge lamp
DE29507522U1 (en) * 1995-05-05 1995-11-16 Fa. Ed. Liesegang, 40221 Düsseldorf Power supply for a projector with a metal halide lamp
DE19622801A1 (en) * 1996-06-07 1997-12-11 Science Beteiligungs Gmbh Circuit arrangement for gas-discharge lamp
DE19629207A1 (en) * 1996-07-19 1998-01-22 Holzer Walter Prof Dr H C Ing Compact fluorescent lamp brightness control method
DE19815624A1 (en) 1998-04-07 1999-10-14 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Operating circuit for discharge lamps with switchable operating states
EP2587897A1 (en) * 2011-10-25 2013-05-01 Easy Solution Holdings Limited Controller for a fluorescent lamp

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0551474A1 (en) * 1991-07-31 1993-07-21 Motorola Lighting Inc. Control circuit
EP0551474A4 (en) * 1991-07-31 1994-02-16 Motorola Lighting, Inc.
EP0654156A1 (en) * 1993-05-04 1995-05-24 Motorola Lighting Inc. Toggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lamps
EP0654156A4 (en) * 1993-05-04 1997-02-26 Motorola Lighting Inc Toggle brightening circuit for powering gas discharge lamps and method for operating gas discharge lamps.
US5477113A (en) * 1994-09-30 1995-12-19 Toroid Hong Kong Limited Apparatus for applying a variable voltage to an electric load
NL1002842C2 (en) * 1996-04-11 1997-10-15 Netherlands Car Bv Lamp driver circuit.
EP0818944A1 (en) * 1996-07-09 1998-01-14 Rudolf Schmidt Device for controlling the intensity of light especially of a pocket light
EP0866646A2 (en) * 1997-03-18 1998-09-23 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Process and circuit for operating at least one discharge lamp
EP0866646A3 (en) * 1997-03-18 2000-05-31 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Process and circuit for operating at least one discharge lamp
WO1999044397A1 (en) * 1998-02-28 1999-09-02 Desmond Charles Drummond Lights
WO2004068532A2 (en) * 2003-01-30 2004-08-12 Koninklijke Philips Electronics N.V. Fluorescent lamp with a second ballast for dimmed lighting mode
WO2004068532A3 (en) * 2003-01-30 2004-09-16 Koninkl Philips Electronics Nv Fluorescent lamp with a second ballast for dimmed lighting mode
NL1032407C2 (en) * 2005-09-02 2007-08-08 Yu-Sheng So A reversible dimmer for gas discharge lamps and control method for adjusting the light thereof.

Also Published As

Publication number Publication date
CN1063791A (en) 1992-08-19
EP0488002B1 (en) 1995-06-07
ATE123616T1 (en) 1995-06-15
DE4037948C2 (en) 1993-05-06
JPH04286899A (en) 1992-10-12
JP2651764B2 (en) 1997-09-10
DE4037948A1 (en) 1992-06-04
DE59105660D1 (en) 1995-07-13

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