EP2182782B1 - Arrangement of electronic pre-switching device and dimming control device connected to it and method for operating a lamp - Google Patents

Arrangement of electronic pre-switching device and dimming control device connected to it and method for operating a lamp Download PDF

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Publication number
EP2182782B1
EP2182782B1 EP09173744A EP09173744A EP2182782B1 EP 2182782 B1 EP2182782 B1 EP 2182782B1 EP 09173744 A EP09173744 A EP 09173744A EP 09173744 A EP09173744 A EP 09173744A EP 2182782 B1 EP2182782 B1 EP 2182782B1
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EP
European Patent Office
Prior art keywords
electronic ballast
lamp
terminals
voltage
load
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EP09173744A
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German (de)
French (fr)
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EP2182782A2 (en
EP2182782A3 (en
Inventor
Werner Longhino
Robert Struebl
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Osram GmbH
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Osram GmbH
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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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • 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
    • 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

Definitions

  • lamps operate in different modes, which differ in the light intensity emitted by the lamp.
  • lamps are operated to emit light of a fairly high intensity in a normal mode, and it is possible to change to a dimming mode in which the lamp emits light with a significantly lower intensity.
  • dimming mode energy is saved.
  • a high intensity of the light emission is often desired. It is thus a control required when you want to switch from normal operation to the dimming operation.
  • street lighting it is common to switch to a dimming operation after a predetermined period of time of between four and six hours since the lamp was turned on.
  • the invention is concerned with this change between two operating modes of the lamp and thus relates to a method of operating a lamp.
  • it provides a novel arrangement of an electronic ballast and a dimming control unit connected to it.
  • an electronic ballast comprises a transformer, wherein the transformer is applied to its primary side with an AC voltage. Said two terminals of the electronic ballast are coupled to the secondary side, on which a rectifier is also provided. Then there is a constant voltage.
  • a load is connected between the two terminals, this influences the overall arrangement and in particular causes a change of potentials on the primary side of the transformer. If such a potential is measured on the primary side, then it can be deduced from this to the load.
  • a voltage source is connected to the two terminals, and because such a voltage source has a very high internal resistance thus a very large load. The voltage applied to the voltage source then influences the potential measured on the primary side of the transformer in the electronic ballast.
  • An interface of the type described is z.
  • the standard concerns the special case of an electronic ballast for a fluorescent lamp.
  • the invention is also applicable to electronic ballasts for halogen lamps, high-pressure lamps and LEDs, in which the interface can then be designed analogous to said interface for fluorescent lamps.
  • the interface is typically used to communicate control commands to the electronic ballast.
  • a central control unit is provided, which is coupled to the respective interfaces.
  • a central control unit is provided, which is coupled to the respective interfaces.
  • the object of the present invention is to show a way in which the elapse of a dimming time can be communicated in an uncomplicated manner to an electronic ballast.
  • the electronic ballast of the device is characterized in that it is designed to drive a lamp connected to it in response to the result of the analysis concerning the load connected to the terminals.
  • a (dimming) control device is connected to the two terminals, which (in particular exclusively) draws energy to its operation via a voltage applied to the two terminals.
  • the conventional interface does not allow a large power output, at most currents in the ⁇ A range flow through the two terminals, but the dimming controller can be made low in consumption by using only electronic components.
  • the dimming control unit has a clock and is able to change the load applied between the two terminals by electronic control in response to an information provided by the clock or due to signals emitted by the clock.
  • a circuit is used with a transistor and changed by the electronic control at its control input (base or gate) applied potential, while other elements such as a Zener diode, a plurality of diodes and / or resistors, the two other terminals ( Collector or source on the other hand and emitter or drain on the other hand) of the transistor are coupled to the two terminals of the electrical ballast.
  • the dimming control unit can be accommodated together with the electronic ballast in the body of a lamp, and there are no external control lines to the light out required.
  • the dimming controller can be easily coupled to the electronic ballast without the need for testing by a test organization.
  • the dimming control unit should be determined by the dimming control unit according to its name, when a connected to the electronic ballast lamp should be dimmed. It is therefore only necessary to distinguish between two states, namely "undimmed” and "dimmed". Accordingly, in the simplest case, the dimming control unit is designed to change from a first state relating to the applied load to a second state.
  • the electronic ballast need only be designed to discriminate between these two states of the dimming controller connected to it, and in the first state it should drive a lamp connected to it so that it emits light of a first intensity, and in that case second state, the lamp so drive that this light with a second, compared to the first intensity of reduced light (ie dimmed) emits.
  • a dimming control unit should simply cause the lamp to be dimmed after a predetermined period of time since the lamp was switched on. Said time period should be determined by the dimming control unit. It is possible to provide different dimming control units at different times, so that in each case the required dimming control unit is to be connected to the electronic ballast.
  • the predetermined period of time can also be stored as a data value in the dimming control unit and be variable via inputs. In any case, the invention makes it possible to dim a lamp after a predetermined period of time since the beginning of its operation, without that period of time having to be stored in the electronic ballast itself.
  • the predetermined time period is given, and the same is preferably designed to wait from the beginning of its supply of voltage (namely, the two terminals of the electronic ballast) a lapse of exactly this predetermined period of time and then a change in the effect load applied between the two terminals.
  • the dimming control unit it can be provided that when the supply of voltage begins, a basic state is automatically set, that is to say the first state, and that an active measure is required in order to change to another, namely the second state.
  • the dimming controller then functions like a timer, with the difference that it itself draws its voltage from the electronic ballast to which there are, so to speak, releases of the voltage connections be processed by the electronic ballast almost like a control command.
  • the first mode of operation is a mode in which the lamp is normal and the second mode of operation is a mode in which the lamp is dimmed.
  • the lamp preferably emits light in a lower intensity in the second operating mode than in the first operating mode.
  • a lamp 10 is driven by an electronic ballast 12 in a conventional manner.
  • the electronic ballast 12 can be coupled to a power supply network via network connections 14a, 14b. Internal circuits in the electronic ballast 12 cause the lamp 10 is driven with a suitable operating voltage, the energy being drawn via the power supply network connected to the mains connections 14a and 14b.
  • the electronic ballast 12 has an interface with two input terminals 16a and 16b. The electronic ballast 12, as soon as a voltage is applied to its power terminals 14a and 14b, in turn to a voltage at the terminals 16a and 16b. About this voltage, a dimming control unit 18 is supplied with electrical energy.
  • the dimming controller 18 includes a timer 20.
  • a predetermined period of time is set, and the timer 20 starts the time since the dimmer controller was turned on, which automatically occurs with application of the voltage to the terminals 16a and 16b. to detect and outputs after the elapse of the predetermined period of time according to the arrow 22 from a signal.
  • means 24 for limiting a voltage and a switching actuator 26 are connected in series.
  • the means 24 and the switching actuator 26 are thus applied as a load on or between the terminals 16a and 16b.
  • the means for voltage limiting 24 are z. B. designed as a Zener diode, as a series connection of diodes other than diodes diodes, possibly formed only as resistors, or they comprise a combination of Zener diodes, conventional diodes and / or resistors.
  • Switching actuator 26 in the simplest example, is a transistor connected to the output of an integrated circuit or a microcontroller is coupled. It can also be directly the output of a microcontroller.
  • the transistor 26 is switched, namely by the control command from the controller 20 according to the arrow 22, the load applied to the terminals 16a and 16b changes in the short term.
  • the electronic ballast 12 can detect a change in this load and changes its driving behavior.
  • the electronic ballast 12 as soon as it is switched on, ie via the power connections 14a and 14b electrical energy, the lamp 10 in a normal operation control.
  • the timing controller 20 in the dimming controller 18 starts detecting the time, and after elapse of a predetermined period of time due to the control instruction shown by the arrow 22, the load is changed, the electronic ballast 12 recognizes it, and changes the driving of the lamp 10, that this is subsequently operated in dimming mode.
  • the dimming controller should first leave the voltage between the terminals 16a and 16b above 10 V after being turned on, and after actuation of the switching actuator 26, this voltage should decrease to a value between 1 and 10 V.
  • a 1 to 10 V interface has two input terminals, which are coupled via a rectifier to the secondary side of a transformer. When changing the load at the input terminals 16a and 16b, the voltage drop across the primary side of the transformer when AC voltage changes, and this can be measured so that the electronic ballast 12 in the present case recognizes that the switching actuator 26 has been activated.
  • the dimming control unit 18 By the connection of the dimming control unit 18 to an existing conventional electronic ballasts anyway 12 interface is a time control for the electronic ballast 12 and thus indirectly provided for the lamp 10 in an inexpensive way.
  • the timing is not provided internally in the electronic ballast 12.
  • the wiring effort to be driven is low because the dimming controller 18 draws the power to its operation solely through the terminals 16a and 16b. Separate power connections for the dimming controller 18 are therefore not required.
  • a dimming control unit 18 with the described properties is available as a simple electronic circuit, possibly with some intelligent elements such as microcontrollers, etc., which consumes little electrical energy and at the same time occupies little space. Thus, the dimming controller 18 can be readily accommodated together with the electronic ballast 12 in a lamp comprising the lamp 10.

Description

Technisches GebietTechnical area

Die meisten Lampen lassen sich in unterschiedlichen Modi betreiben, die sich durch die von der Lampe abgegebene Lichtintensität unterscheiden. Üblicherweise werden Lampen so betrieben, dass sie in einem Normalmodus Licht in recht großer Intensität abstrahlen, und es ist ein Wechsel in einen Dimm-Modus möglich, in dem die Lampe mit deutlich geringerer Intensität Licht abstrahlt. Im Dimmbetrieb wird Energie eingespart. Andererseits ist häufig eine hohe Intensität der Lichtabstrahlung gewünscht. Es ist somit eine Steuerung erforderlich, wann vom Normalbetrieb auf den Dimmbetrieb gewechselt werden soll. Bei Straßenbeleuchtung ist es üblich, nach einer vorbestimmten Zeitdauer von zwischen vier und sechs Stunden seit dem Einschalten der Lampe auf einen Dimmbetrieb zu wechseln.Most lamps operate in different modes, which differ in the light intensity emitted by the lamp. Usually, lamps are operated to emit light of a fairly high intensity in a normal mode, and it is possible to change to a dimming mode in which the lamp emits light with a significantly lower intensity. In dimming mode, energy is saved. On the other hand, a high intensity of the light emission is often desired. It is thus a control required when you want to switch from normal operation to the dimming operation. In street lighting, it is common to switch to a dimming operation after a predetermined period of time of between four and six hours since the lamp was turned on.

Die Erfindung befasst sich mit diesem Wechsel zwischen zwei Betriebsmodi der Lampe und betrifft somit ein Verfahren zum Betreiben einer Lampe. Sie stellt hierfür eine neuartige Anordnung aus einem elektronischen Vorschaltgerät und einem an diesem angeschlossenen Dimm-Steuergerät bereit.The invention is concerned with this change between two operating modes of the lamp and thus relates to a method of operating a lamp. For this purpose it provides a novel arrangement of an electronic ballast and a dimming control unit connected to it.

Stand der TechnikState of the art

Bei der Erfindung wird davon ausgegangen, dass ein herkömmliches elektronisches Vorschaltgerät verwendet wird, wie es beispielsweise in der Schrift DE 10 2007 047141 A1 (Sandholzer) offenbart ist. Herkömmliche elektronische Vorschaltgeräte weisen eine bestimmte Art von Schnittstelle auf: An zwei Anschlüsse (bzw. zwischen zwei Anschlüssen) des elektronischen Vorschaltgeräts legt selbiges im Betrieb eine Spannung an. Nun ist das elektronische Vorschaltgerät in der Lage, unterschiedliche an den Anschlüssen angeschlossene Lasten voneinander zu unterscheiden. Typischerweise umfasst ein elektronisches Vorschaltgerät einen Transformator, wobei der Transformator an seiner Primärseite mit einer Wechselspannung beaufschlagt wird. Die besagten beiden Anschlüsse des elektronischen Vorschaltgeräts sind mit der Sekundärseite gekoppelt, an der auch ein Gleichrichter vorgesehen ist. Dann liegt eine konstante Spannung an. Wird zwischen die beiden Anschlüsse eine Last geschaltet, so beeinflusst diese die Gesamtanordnung und bewirkt insbesondere eine Änderung von Potentialen an der Primärseite des Transformators. Wird ein solches Potential an der Primärseite gemessen, so lässt sich aus diesem auf die Last zurückschließen. Im Extremfall wird an die beiden Anschlüsse eine Spannungsquelle angeschlossen, und weil eine solche Spannungsquelle einen sehr hohen Innenwiderstand aufweist somit eine sehr große Last. Die an der Spannungsquelle anliegende Spannung beeinflusst dann das an der Primärseite des Transformators im elektronischen Vorschaltgerät gemessene Potential.In the invention it is assumed that a conventional electronic ballast is used, as for example in the Scriptures DE 10 2007 047141 A1 (Sandholzer) is revealed. Conventional electronic ballasts have a certain type of interface: at two terminals (or between two terminals) of the electronic ballast sets the same in operation, a voltage. Now, the electronic ballast is able to distinguish different loads connected to the terminals from each other. Typically, an electronic ballast comprises a transformer, wherein the transformer is applied to its primary side with an AC voltage. Said two terminals of the electronic ballast are coupled to the secondary side, on which a rectifier is also provided. Then there is a constant voltage. If a load is connected between the two terminals, this influences the overall arrangement and in particular causes a change of potentials on the primary side of the transformer. If such a potential is measured on the primary side, then it can be deduced from this to the load. In extreme cases, a voltage source is connected to the two terminals, and because such a voltage source has a very high internal resistance thus a very large load. The voltage applied to the voltage source then influences the potential measured on the primary side of the transformer in the electronic ballast.

Eine Schnittstelle der beschriebenen Art ist z. B. in der Norm IEC 60929, in deren Annex E2 definiert. Die Norm betrifft den Spezialfall eines elektronischen Vorschaltgeräts für eine Leuchtstofflampe. Die Erfindung ist auch für elektronische Vorschaltgeräte für Halogenlampen, Hochdrucklampen und LEDs anwendbar, bei denen die Schnittstelle dann analog zu besagter Schnittstelle für Leuchtstofflampen ausgestaltet sein kann.An interface of the type described is z. For example, in the standard IEC 60929, defined in Annex E2. The standard concerns the special case of an electronic ballast for a fluorescent lamp. The invention is also applicable to electronic ballasts for halogen lamps, high-pressure lamps and LEDs, in which the interface can then be designed analogous to said interface for fluorescent lamps.

Die Schnittstelle wird üblicherweise dazu verwendet, Steuerbefehle an das elektronische Vorschaltgerät zu übermitteln.The interface is typically used to communicate control commands to the electronic ballast.

Üblicherweise wird in einer Anordnung aus einer Vielzahl von Lampen mit zugehörigen elektronischen Vorschaltgeräten eine zentrale Steuereinheit bereitgestellt, die mit den jeweiligen Schnittstellen gekoppelt ist. Es erscheint aber nicht sinnvoll, eine solche Anordnung lediglich zum Mitteilen des Verstreichens einer vorbestimmten Dimmdauer an die elektronischen Vorschaltgeräte vorzusehen, denn der Verkabelungsaufwand ist sehr groß: Jedes elektronische Vorschaltgerät muss einzeln mit der zentralen Steuereinheit verbunden werden.Usually, in an arrangement of a plurality of lamps with associated electronic ballasts, a central control unit is provided, which is coupled to the respective interfaces. However, it does not make sense to provide such an arrangement merely for communicating the passage of a predetermined dimming time to the electronic ballasts, because the cabling effort is very large: Each electronic ballast must be individually connected to the central control unit.

In der Schrift US 5 789 868 (Sears ) ist ein Dämmerungsschalter für eine Lampe offenbart, der nach Eintritt der Dunkelheit die Lampe nur für eine bestimmte Zeit einschaltet.In Scripture U.S. 5,789,868 (Sears ) discloses a twilight switch for a lamp, which turns on the lamp only for a certain time after the onset of darkness.

In der Schrift DE 44 18 315 A1 (Ramscheid ) wird ein Verfahren vorgeschlagen, mit dem eine Leuchte in einem Zeitraum, der in einem Betriebszeitraum liegt, gedimmt wird. In der Schrift DE 198 23 422 A1 (Slamecka ) ist ein drahtlos helligkeitsgesteuerter Schalter zum Schalten einer Leuchte offenbart. Der Schalter wird vorteilhaft mit einer Schaltuhr kombiniert.In Scripture DE 44 18 315 A1 (Ramscheid ) proposes a method of dimming a luminaire in a period of time that is within an operating period. In Scripture DE 198 23 422 A1 (Slamecka ) discloses a wireless brightness-controlled switch for switching a light. The switch is advantageously combined with a timer.

Darstellung der ErfindungPresentation of the invention

Die Aufgabe der vorliegenden Erfindung ist es, einen Weg aufzuzeigen, wie einem elektronischen Vorschaltgerät das Verstreichen einer Dimmdauer in unaufwendiger Weise mitgeteilt werden kann.The object of the present invention is to show a way in which the elapse of a dimming time can be communicated in an uncomplicated manner to an electronic ballast.

Die Aufgabe wird durch das Bereitstellen einer Anordnung mit den Merkmalen des Patentanspruchs 1 und ein Verfahren mit den Merkmalen des Patentanspruchs 4 gelöst. Besonders vorteilhafte Ausgestaltungen finden sich in den abhängigen Ansprüchen.The object is achieved by providing an arrangement having the features of patent claim 1 and a method having the features of patent claim 4. Particularly advantageous embodiments can be found in the dependent claims.

Das elektronische Vorschaltgerät der Anordnung zeichnet sich dadurch aus, dass es ausgelegt ist, eine an es angeschlossene Lampe in Abhängigkeit von dem Ergebnis der Analyse anzusteuern, die die an den Anschlüssen angeschlossene Last betrifft.The electronic ballast of the device is characterized in that it is designed to drive a lamp connected to it in response to the result of the analysis concerning the load connected to the terminals.

Vor allem aber ist an den beiden Anschlüssen ein (Dimm-) Steuergerät angeschlossen, welches (insbesondere ausschließlich) über eine an den beiden Anschlüssen anliegende Spannung Energie zu seinem Betrieb bezieht. Zwar erlaubt die herkömmliche Schnittstelle keine große Leistungsabgabe, sondern es fließen höchstens Ströme im µA-Bereich über die beiden Anschlüsse, aber das Dimm-Steuergerät kann verbrauchsarm gestaltet werden, indem ausschließlich elektronische Komponenten verwendet werden. Das Dimm-Steuergerät weist eine Uhr auf und ist in der Lage, die zwischen den beiden Anschlüssen anliegende Last durch elektronische Steuerung in Abhängigkeit von eine von der Uhr bereitgestellten Information bzw. aufgrund von von der Uhr abgegebenen Signalen zu ändern. Im einfachsten Fall wird eine Schaltung mit einem Transistor verwendet und durch die elektronische Steuerung das an dessen Steuereingang (Basis bzw. Gate) anliegende Potential geändert, während über weitere Elemente wie eine Zenerdiode, eine Mehrzahl von Dioden und/oder Widerstände die beiden anderen Anschlüsse (Kollektor bzw. Source andererseits und Emitter bzw. Drain andererseits) des Transistors mit den beiden Anschlüssen des elektrischen Vorschaltgeräts gekoppelt sind.But above all, a (dimming) control device is connected to the two terminals, which (in particular exclusively) draws energy to its operation via a voltage applied to the two terminals. Although the conventional interface does not allow a large power output, at most currents in the μA range flow through the two terminals, but the dimming controller can be made low in consumption by using only electronic components. The dimming control unit has a clock and is able to change the load applied between the two terminals by electronic control in response to an information provided by the clock or due to signals emitted by the clock. In the simplest case, a circuit is used with a transistor and changed by the electronic control at its control input (base or gate) applied potential, while other elements such as a Zener diode, a plurality of diodes and / or resistors, the two other terminals ( Collector or source on the other hand and emitter or drain on the other hand) of the transistor are coupled to the two terminals of the electrical ballast.

Durch das Bereitstellen der erfindungsgemäßen Anordnung kann eine Zeitsteuerung einer an das elektronische Vorschaltgerät angeschlossenen Lampe erfolgen, ohne dass übermäßiger Verkabelungsaufwand betrieben werden muss. Das Dimm-Steuergerät kann hierbei zusammen mit dem elektronischen Vorschaltgerät im Körper einer Leuchte untergebracht werden, und es sind keine externen Steuerleitungen zur Leuchte hin erforderlich. Das Dimm-Steuergerät kann einfach mit dem elektronischen Vorschaltgerät gekoppelt werden, ohne dass eine Abnahme durch eine Prüforganisation erforderlich ist.By providing the arrangement according to the invention, a time control of a lamp connected to the electronic ballast can take place without excessive cabling must be operated. The dimming control unit can be accommodated together with the electronic ballast in the body of a lamp, and there are no external control lines to the light out required. The dimming controller can be easily coupled to the electronic ballast without the need for testing by a test organization.

Durch das Bereitstellen der Uhr sind komplexe Zeitvorgaben möglich.By providing the clock, complex time schedules are possible.

Im einfachsten Fall, für den die erfindungsgemäße Anordnung hauptsächlich vorgesehen ist, soll durch das Dimm-Steuergerät seinem Namen entsprechend festgelegt werden, wann eine an das elektronische Vorschaltgerät angeschlossene Lampe gedimmt werden soll. Es muss also nur zwischen zwei Zuständen, nämlich "ungedimmt" und "gedimmt" unterschieden werden. Demgemäß ist das Dimm-Steuergerät im einfachsten Fall dazu ausgelegt, von einem ersten Zustand betreffend die anliegende Last in einen zweiten Zustand zu wechseln. Das elektronische Vorschaltgerät muss lediglich dazu ausgelegt sein, zwischen diesen beiden Zuständen des an es angeschlossenen Dimm-Steuergeräts zu unterscheiden, und es soll bei dem ersten Zustand eine an es angeschlossene Lampe so ansteuern, dass diese Licht mit einer ersten Intensität abgibt, und bei dem zweiten Zustand die Lampe so ansteuern, dass diese Licht mit einer zweiten, gegenüber der ersten Intensität verringerten Licht (also gedimmt) abgibt.In the simplest case, for which the arrangement according to the invention is mainly provided, should be determined by the dimming control unit according to its name, when a connected to the electronic ballast lamp should be dimmed. It is therefore only necessary to distinguish between two states, namely "undimmed" and "dimmed". Accordingly, in the simplest case, the dimming control unit is designed to change from a first state relating to the applied load to a second state. The electronic ballast need only be designed to discriminate between these two states of the dimming controller connected to it, and in the first state it should drive a lamp connected to it so that it emits light of a first intensity, and in that case second state, the lamp so drive that this light with a second, compared to the first intensity of reduced light (ie dimmed) emits.

In einem besonders einfachen Fall ist es nicht einmal erforderlich, dass nach dem Dimmen wieder in den Normalbetrieb zurückgewechselt wird. Im einfachsten Fall soll ein Dimm-Steuergerät einfach bewirken, dass nach einer vorbestimmten Zeitdauer seit dem Einschalten der Lampe selbige gedimmt wird. Besagte Zeitdauer soll durch das Dimm-Steuergerät festgelegt sein. Es ist möglich, zu unterschiedlichen solchen Zeitdauern jeweils unterschiedliche Dimm-Steuergeräte bereitzustellen, so dass dann jeweils das benötigte Dimm-Steuergerät an das elektronische Vorschaltgerät anzuschließen ist. Die vorbestimmte Zeitdauer kann jedoch auch als Datenwert im Dimm-Steuergerät abgelegt sein und über Eingaben veränderlich sein. Auf jeden Fall ermöglicht es die Erfindung, eine Lampe nach einer vorbestimmten Zeitdauer seit Beginn ihres Betriebs zu dimmen, ohne dass diese Zeitdauer im elektronischen Vorschaltgerät selbst abgelegt sein muss. Vielmehr ist eben zu dem Dimm-Steuergerät die vorbestimmte Zeitdauer vorgegeben, und selbiges ist bevorzugt dazu ausgelegt, ab dem Beginn seiner Versorgung mit Spannung (nämlich über die beiden Anschlüsse des elektronischen Vorschaltgeräts) ein Verstreichen genau dieser vorbestimmten Zeitdauer abzuwarten und sodann einen Wechsel in der zwischen den beiden Anschlüssen anliegenden Last zu bewirken.In a particularly simple case, it is not even necessary to return to normal operation after dimming is changed back. In the simplest case, a dimming control unit should simply cause the lamp to be dimmed after a predetermined period of time since the lamp was switched on. Said time period should be determined by the dimming control unit. It is possible to provide different dimming control units at different times, so that in each case the required dimming control unit is to be connected to the electronic ballast. However, the predetermined period of time can also be stored as a data value in the dimming control unit and be variable via inputs. In any case, the invention makes it possible to dim a lamp after a predetermined period of time since the beginning of its operation, without that period of time having to be stored in the electronic ballast itself. Rather, just to the dimming control unit, the predetermined time period is given, and the same is preferably designed to wait from the beginning of its supply of voltage (namely, the two terminals of the electronic ballast) a lapse of exactly this predetermined period of time and then a change in the effect load applied between the two terminals.

Bei dem Dimm-Steuergerät kann vorgesehen sein, dass sich beim Beginn seiner Versorgung mit Spannung automatisch ein Grundzustand einstellt, also der erste Zustand, und dass es einer aktiven Maßnahme bedarf, um zu einem anderen, nämlich dem zweiten Zustand zu wechseln. Das Dimm-Steuergerät funktioniert dann wie eine Zeitschaltuhr, mit dem Unterschied, dass es selbst seine Spannung von dem elektronischen Vorschaltgerät bezieht, dem es gewissermaßen über die Spannungsanschlüsse Mitteilungen gibt, welche von dem elektronischen Vorschaltgerät quasi wie ein Steuerbefehl verarbeitet werden.In the case of the dimming control unit, it can be provided that when the supply of voltage begins, a basic state is automatically set, that is to say the first state, and that an active measure is required in order to change to another, namely the second state. The dimming controller then functions like a timer, with the difference that it itself draws its voltage from the electronic ballast to which there are, so to speak, releases of the voltage connections be processed by the electronic ballast almost like a control command.

Das erfindungsgemäße Verfahren zum Betreiben einer Lampe umfasst die Schritte:

  • Koppeln der Lampe mit einem elektronischen Vorschaltgerät,
  • Anschließen eines Dimm-Steuergeräts an zwei Eingangsanschlüsse des elektronischen Vorschaltgeräts,
  • Beginnen des Anlegens einer Spannung an (bzw. zwischen) zwei Netzanschlüsse(n) des elektronischen Vorschaltgeräts,
  • sodann erstens Beginnen durch das elektronische Vorschaltgerät, die Lampe für einen ersten Betriebsmodus anzusteuern, also die Lampe durch Steuerung der Zufuhr einer Spannung an selbige und ggf. durch Steuersignale in einen ersten Betriebsmodus zu versetzen, und zweitens Beginnen durch das elektronische Vorschaltgerät an den Eingangsanschlüssen eine Spannung anzulegen und so das Dimm-Steuergerät in Betrieb zu setzen,
  • Abwarten einer vorbestimmten Zeitdauer durch das Dimm-Steuergerät nach seinem In-Betrieb-Gesetzt-Werden,
    und nach Verstreichen der vorbestimmten Zeitdauer
  • Bewirken eines Wechsels in der an den Eingangsanschlüssen liegenden Last und
  • Erkennen des Lastwechsels durch das elektronische Vorschaltgerät und deswegen nachfolgend Ansteuern der Lampe für einen zweiten Betriebsmodus (also Bewirken durch geeignete Zufuhr von Spannung und ggf. Steuersignalen, dass die Lampe in einem zweiten Betriebsmodus arbeitet).
The method according to the invention for operating a lamp comprises the steps:
  • Coupling the lamp with an electronic ballast,
  • Connecting a dimming control unit to two input terminals of the electronic ballast,
  • Starting to apply a voltage to (or between) two power supplies (s) of the electronic ballast,
  • then, first, start by the electronic ballast to drive the lamp for a first mode of operation, so to put the lamp by controlling the supply of voltage to selbige and possibly by control signals in a first mode of operation, and secondly start by the electronic ballast at the input terminals a Apply voltage and thus put the dimming control unit into operation,
  • Waiting for a predetermined period of time by the dimming controller after being put into operation,
    and after elapse of the predetermined period of time
  • Causing a change in the load at the input terminals and
  • Recognizing the load change by the electronic ballast and therefore subsequently driving the lamp for a second operating mode (ie effecting by suitable supply of voltage and possibly control signals that the lamp operates in a second operating mode).

Bevorzugt ist der erste Betriebsmodus ein Modus, in dem die Lampe normal arbeitet und der zweite Betriebsmodus ein Modus, in dem die Lampe gedimmt arbeitet. Mit anderen Worten gibt die Lampe bevorzugt im zweiten Betriebsmodus Licht in geringerer Intensität ab als im ersten Betriebsmodus.Preferably, the first mode of operation is a mode in which the lamp is normal and the second mode of operation is a mode in which the lamp is dimmed. In other words, the lamp preferably emits light in a lower intensity in the second operating mode than in the first operating mode.

Kurze Beschreibung der Zeichnung(en)Short description of the drawing (s)

Im Folgenden soll die Erfindung anhand eines Ausführungsbeispiels näher erläutert werden. Es zeigen:

Fig. 1
eine Anordnung aus elektronischem Vorschaltgerät mit daran angeschlossenem Dimmgerät gemäß der Erfindung und ferner daran angeschlossener Lampe,
Fig. 2
den prinzipiellen Aufbau des Dimm-Steuergeräts aus Fig. 1 anhand einer Blockdarstellung.
In the following, the invention will be explained in more detail with reference to an embodiment. Show it:
Fig. 1
an arrangement of electronic ballast with dimming device connected thereto according to the invention and further lamp connected thereto,
Fig. 2
the basic structure of the dimming control unit Fig. 1 using a block diagram.

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Eine Lampe 10 wird von einem elektronischen Vorschaltgerät 12 in an sich bekannter Weise angesteuert. Das elektronische Vorschaltgerät 12 ist über Netzanschlüsse 14a, 14b mit einem Stromversorgungsnetz koppelbar. Interne Schaltungen in dem elektronischen Vorschaltgerät 12 bewirken, dass die Lampe 10 mit einer geeigneten Betriebsspannung angesteuert wird, wobei die Energie über das an den Netzanschlüssen 14a und 14b angeschlossene Stromversorgungsnetz bezogen wird. Das elektronische Vorschaltgerät 12 weist eine Schnittstelle mit zwei Eingangsanschlüssen 16a und 16b auf. Das elektronische Vorschaltgerät 12 legt, sobald an seinen Netzanschlüssen 14a und 14b eine Spannung anliegt, seinerseits eine Spannung an den Anschlüssen 16a und 16b an. Über diese Spannung wird ein Dimm-Steuergerät 18 mit elektrischer Energie versorgt.A lamp 10 is driven by an electronic ballast 12 in a conventional manner. The electronic ballast 12 can be coupled to a power supply network via network connections 14a, 14b. Internal circuits in the electronic ballast 12 cause the lamp 10 is driven with a suitable operating voltage, the energy being drawn via the power supply network connected to the mains connections 14a and 14b. The electronic ballast 12 has an interface with two input terminals 16a and 16b. The electronic ballast 12, as soon as a voltage is applied to its power terminals 14a and 14b, in turn to a voltage at the terminals 16a and 16b. About this voltage, a dimming control unit 18 is supplied with electrical energy.

Das Dimm-Steuergerät 18 umfasst eine Zeitsteuerung 20. In der Zeitsteuerung 20 ist eine vorbestimmte Zeitdauer vorgegeben, und die Zeitsteuerung 20 beginnt die Zeit seit dem Einschalten des Dimm-Steuergeräts, das automatisch mit einem Anlegen der Spannung an die Anschlüsse 16a und 16b erfolgt, zu erfassen und gibt nach dem Verstreichen der vorbestimmten Zeitdauer entsprechend dem Pfeil 22 ein Signal ab.The dimming controller 18 includes a timer 20. In the timer 20, a predetermined period of time is set, and the timer 20 starts the time since the dimmer controller was turned on, which automatically occurs with application of the voltage to the terminals 16a and 16b. to detect and outputs after the elapse of the predetermined period of time according to the arrow 22 from a signal.

Nun sind in dem Dimm-Steuergerät 18 parallel zu der Zeitsteuerung 20 Mittel 24 zum Begrenzen einer Spannung und ein Schaltaktor 26 in Reihe geschaltet. Die Mittel 24 sowie der Schaltaktor 26 liegen somit als Last an bzw. zwischen den Anschlüssen 16a und 16b an. Die Mittel zur Spannungsbegrenzung 24 sind z. B. als Zener-Diode ausgeführt, als Serienschaltung von von Zener-Dioden verschiedenen Dioden, ggf. nur als Widerstände ausgebildet, oder sie umfassen eine Kombination von Zener-Dioden, herkömmlichen Dioden und/oder Widerständen.Now, in the dimming controller 18, in parallel to the timing controller 20, means 24 for limiting a voltage and a switching actuator 26 are connected in series. The means 24 and the switching actuator 26 are thus applied as a load on or between the terminals 16a and 16b. The means for voltage limiting 24 are z. B. designed as a Zener diode, as a series connection of diodes other than diodes diodes, possibly formed only as resistors, or they comprise a combination of Zener diodes, conventional diodes and / or resistors.

Der Schaltaktor 26 ist im einfachsten Beispiel ein Transistor, der mit dem Ausgang eines integrierten Schaltkreises oder eines Mikrocontrollers gekoppelt ist. Er kann auch direkt der Ausgang eines Mikrocontrollers sein. Wird der Transistor 26 geschaltet, nämlich durch den Steuerbefehl von der Steuerung 20 gemäß dem Pfeil 22, ändert sich kurzfristig die Last, die an den Anschlüssen 16a und 16b anliegt. Das elektronische Vorschaltgerät 12 kann eine Änderung dieser Last erkennen und ändert sein Ansteuerverhalten. So kann das elektronische Vorschaltgerät 12, sobald es eingeschaltet ist, also über die Netzanschlüsse 14a und 14b elektrische Energie bezieht, die Lampe 10 in einem Normalbetrieb ansteuern. Gleichzeitig beginnt die Zeitsteuerung 20 in dem Dimm-Steuergerät 18 mit der Erfassung der Zeit, und nach Verstreichen einer vorbestimmten Zeitdauer aufgrund des Steuerbefehls gemäß dem Pfeil 22 wird die Last geändert, das elektronische Vorschaltgerät 12 erkennt dieses und wechselt die Ansteuerung der Lampe 10 dahingehend, dass diese nachfolgend im Dimmbetrieb betrieben wird.Switching actuator 26, in the simplest example, is a transistor connected to the output of an integrated circuit or a microcontroller is coupled. It can also be directly the output of a microcontroller. When the transistor 26 is switched, namely by the control command from the controller 20 according to the arrow 22, the load applied to the terminals 16a and 16b changes in the short term. The electronic ballast 12 can detect a change in this load and changes its driving behavior. Thus, the electronic ballast 12, as soon as it is switched on, ie via the power connections 14a and 14b electrical energy, the lamp 10 in a normal operation control. At the same time, the timing controller 20 in the dimming controller 18 starts detecting the time, and after elapse of a predetermined period of time due to the control instruction shown by the arrow 22, the load is changed, the electronic ballast 12 recognizes it, and changes the driving of the lamp 10, that this is subsequently operated in dimming mode.

Bei einer herkömmlichen Schnittstelle des elektronischen Vorschaltgeräts 12 mit Anschlüssen 16a und 16b, die auch als 1 bis 10 V-Schnittstelle bezeichnet wird, sollte das Dimm-Steuergerät nach seinem Einschalten zunächst die Spannung zwischen den Anschlüssen 16a und 16b auf über 10 V belassen, und nach dem Betätigen des Schaltaktors 26 sollte diese Spannung auf einen Wert zwischen 1 und 10 V sinken. Eine 1 bis 10 V-Schnittstelle weist zwei Eingangsanschlüsse auf, die über einen Gleichrichter mit der Sekundärseite eines Transformators gekoppelt sind. Bei Wechsel der Last an den Eingangsanschlüssen 16a und 16b ändert sich die an der Primärseite des Transformators bei Beaufschlagung mit Wechselspannung abfallende Spannung, und diese kann gemessen werden, damit das elektronische Vorschaltgerät 12 vorliegend erkennt, dass der Schaltaktor 26 aktiviert worden ist.In a conventional interface of the electronic ballast 12 with terminals 16a and 16b, which is also referred to as a 1 to 10 V interface, the dimming controller should first leave the voltage between the terminals 16a and 16b above 10 V after being turned on, and after actuation of the switching actuator 26, this voltage should decrease to a value between 1 and 10 V. A 1 to 10 V interface has two input terminals, which are coupled via a rectifier to the secondary side of a transformer. When changing the load at the input terminals 16a and 16b, the voltage drop across the primary side of the transformer when AC voltage changes, and this can be measured so that the electronic ballast 12 in the present case recognizes that the switching actuator 26 has been activated.

Durch die Anbindung des Dimm-Steuergeräts 18 an eine bei herkömmlichen elektronischen Vorschaltgeräten 12 ohnehin vorhandene Schnittstelle ist in unaufwendiger Weise eine Zeitsteuerung für das elektronische Vorschaltgerät 12 und damit mittelbar für die Lampe 10 bereitgestellt. Die Zeitsteuerung ist nicht intern in dem elektronischen Vorschaltgerät 12 bereitgestellt. Durch Verwendung eines anderen Dimm-Steuergeräts, zu dem eine andere vorbestimmte Zeit vordefiniert ist, lässt sich eine Änderung in der Zeitsteuerung vornehmen.By the connection of the dimming control unit 18 to an existing conventional electronic ballasts anyway 12 interface is a time control for the electronic ballast 12 and thus indirectly provided for the lamp 10 in an inexpensive way. The timing is not provided internally in the electronic ballast 12. By using another dimming controller to which another predetermined time is predefined, a change in timing can be made.

Der zu treibende Verkabelungsaufwand ist gering, weil das Dimm-Steuergerät 18 die Energie zu seinem Betrieb ausschließlich über die Anschlüsse 16a und 16b bezieht. Gesonderte Netzanschlüsse für das Dimm-Steuergerät 18 sind daher nicht erforderlich. Ein Dimm-Steuergerät 18 mit den beschriebenen Eigenschaften ist als einfache elektronische Schaltung, ggf. mit einigen intelligenten Elementen wie Mikrocontrollern, etc. bereitstellbar, welche wenig elektrische Energie verbraucht und gleichzeitig wenig Platz einnimmt. Somit kann das Dimm-Steuergerät 18 zusammen mit dem elektronischen Vorschaltgerät 12 in einer Leuchte, welche die Lampe 10 umfasst, ohne weiteres untergebracht werden.The wiring effort to be driven is low because the dimming controller 18 draws the power to its operation solely through the terminals 16a and 16b. Separate power connections for the dimming controller 18 are therefore not required. A dimming control unit 18 with the described properties is available as a simple electronic circuit, possibly with some intelligent elements such as microcontrollers, etc., which consumes little electrical energy and at the same time occupies little space. Thus, the dimming controller 18 can be readily accommodated together with the electronic ballast 12 in a lamp comprising the lamp 10.

Claims (5)

  1. Arrangement comprising:
    - an electronic ballast (12) having an interface with two terminals (16a, 16b) to which the electronic ballast applies voltage during operation, wherein the electronic ballast can distinguish between different loads (24, 26) connected to the interface terminals (16a, 16b) and can thus obtain an analysis result, wherein it is configured to drive a lamp (10), which is connected to the electronic ballast (12) , as a function of the analysis result,
    - a control apparatus (18), which is connected to the two terminals (16a, 16b) and draws energy for its operation via a voltage present at the two terminals (16a, 16b), and which has a clock (20) and can change the load (24, 26), which is present between the two terminals (16a, 16b), via an electronic controller (22) as a function of information or signals provided by the clock (20).
  2. Arrangement according to Claim 1, in which the control apparatus is configured, as a dimming control apparatus (18), to change from a first state with respect to the load present into a second state with respect to the load present, wherein the electronic ballast (12) is configured to distinguish between these two states, and to drive, in the first state, a lamp (10) connected to it in a manner such that the latter emits light of a first intensity, and to drive, in the second state, the lamp in a manner such that it emits light of a second intensity which is reduced with respect to the first intensity.
  3. Arrangement according to Claim 2, in which a predetermined period of time is specified to the dimming control apparatus (18), which is configured to wait for the passing of the predetermined period of time since the beginning of its supply with voltage and to subsequently effect a change in the load which is present between the two terminals (16a, 16b).
  4. Method for operating a lamp (10), having the following steps:
    - the lamp (10) is coupled to an electronic ballast (12),
    - a dimming control apparatus (18) is connected to the two input terminals (16a, 16b) of an interface of the electronic ballast (12),
    - the application of a voltage to two mains terminals (14a, 14b) of the electronic ballast is started,
    - then firstly the electronic ballast (12) begins to drive the lamp (10) for a first operating mode, and secondly, a voltage is initially applied, by way of the electronic ballast, to the input terminals (16a, 16b), and the dimming control apparatus (18) is thus set into operation,
    - the dimming control apparatus (18) waits for a predetermined period of time after it is set into operation,
    and after the predetermined period of time has elapsed,
    - a change in the load (24, 26) present at the input terminals (16a, 16b) is effected and
    - the change in the load (24, 26) is detected by the electronic ballast (12) and, therefore, the lamp is subsequently driven for a second operating mode.
  5. Method according to Claim 4, in which the lamp emits light of lower intensity in the second operating mode than in the first operating mode.
EP09173744A 2008-11-03 2009-10-22 Arrangement of electronic pre-switching device and dimming control device connected to it and method for operating a lamp Not-in-force EP2182782B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008054290A DE102008054290A1 (en) 2008-11-03 2008-11-03 Arrangement of electronic ballast and connected dimming control device and method for operating a lamp

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EP2182782A2 EP2182782A2 (en) 2010-05-05
EP2182782A3 EP2182782A3 (en) 2011-03-16
EP2182782B1 true EP2182782B1 (en) 2012-12-05

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US (1) US20100109574A1 (en)
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DE102013204858A1 (en) * 2013-03-20 2014-10-09 Osram Gmbh Electronic ballast and method for operating at least one light source
DE102015112058A1 (en) * 2015-07-23 2017-01-26 Itz Innovations- Und Technologiezentrum Gmbh Module and operating device for supplying an LED lamp with suitably adjustable operating current
CN107306470A (en) * 2016-04-21 2017-10-31 广西苏中达科智能工程有限公司 A kind of universal gas discharge lamp dimming device

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US4924109A (en) * 1987-11-02 1990-05-08 Weber Harold J Dim-down electric light time switch method and apparatus
US4937504A (en) * 1988-08-31 1990-06-26 Honeywell Inc. Time delay initialization circuit
US4928038A (en) * 1988-09-26 1990-05-22 General Electric Company Power control circuit for discharge lamp and method of operating same
DE4418315C2 (en) * 1994-05-26 1998-02-26 L & R Losse Und Ramscheid Date Method and circuit device for reducing the energy consumption of street lighting networks
US5757145A (en) * 1994-06-10 1998-05-26 Beacon Light Products, Inc. Dimming control system and method for a fluorescent lamp
US5789868A (en) * 1996-08-13 1998-08-04 The Lamson & Sessions Co. Timed photocell switch circuit
US6043611A (en) * 1997-04-10 2000-03-28 Philips Electronics North America Corporation Dimmable compact fluorescent lamp
DE19823422A1 (en) * 1998-05-15 1999-11-18 Ernst Slamecka Wireless intensity-controlled electrical switch, e.g. for controlling external lighting for dwellings
CN1336093A (en) * 1999-11-02 2002-02-13 皇家菲利浦电子有限公司 Circuit device
DE102007047141A1 (en) * 2007-10-02 2009-04-09 Tridonicatco Gmbh & Co. Kg Operating device for controlling the baking process of a lamp

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EP2182782A2 (en) 2010-05-05
CN101730346A (en) 2010-06-09
CN101730346B (en) 2014-05-14
US20100109574A1 (en) 2010-05-06
EP2182782A3 (en) 2011-03-16
DE102008054290A1 (en) 2010-05-12

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