EP2153703B1 - Circuit arrangement, and method for the operation of a fluorescent lamp - Google Patents

Circuit arrangement, and method for the operation of a fluorescent lamp Download PDF

Info

Publication number
EP2153703B1
EP2153703B1 EP07728797.7A EP07728797A EP2153703B1 EP 2153703 B1 EP2153703 B1 EP 2153703B1 EP 07728797 A EP07728797 A EP 07728797A EP 2153703 B1 EP2153703 B1 EP 2153703B1
Authority
EP
European Patent Office
Prior art keywords
fluorescent lamp
operational parameter
circuit arrangement
filament
switch
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.)
Not-in-force
Application number
EP07728797.7A
Other languages
German (de)
French (fr)
Other versions
EP2153703A1 (en
Inventor
Thomas Mudra
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Osram GmbH
Original Assignee
Osram GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Osram GmbH filed Critical Osram GmbH
Publication of EP2153703A1 publication Critical patent/EP2153703A1/en
Application granted granted Critical
Publication of EP2153703B1 publication Critical patent/EP2153703B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • 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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2988—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the lamp against abnormal operating conditions
    • 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
    • H05B41/02—Details
    • 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
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • 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
    • H05B47/20—Responsive to malfunctions or to light source life; for protection

Definitions

  • the present invention relates to a circuit arrangement for operating a fluorescent lamp having a first and a second coil, wherein the circuit arrangement comprises a heater for the first and the second coil. It also relates to a method for operating a fluorescent lamp having a first and a second coil on a circuit arrangement with a heater for the first and the second coil.
  • Permanent filament heating to prevent such buildup is undesirable due to the concomitant continuous losses that result in a significant degradation in the efficiency of the fluorescent lamp, as well as the heating of the cold spot for the HG vapor pressure adjustment.
  • Heating of coils for ignition the fluorescent lamp is very short, ie this heating process is less than 0.5 s and is predominantly inhomogeneous. As a result, deposits can neither be removed nor their formation prevented.
  • a fluorescent lamp system which periodically shuts off the fluorescent lamps to allow ambient light to be measured.
  • the object of the present invention is to further develop a circuit arrangement mentioned at the outset and an initially mentioned method such that an extension of the service life of fluorescent lamps is made possible.
  • the present invention is based on the finding that the above-mentioned object can be achieved optimally when the coils are heated at periodic intervals, in order to avoid deposits and the resulting life-shortening effects.
  • the periodicity will be fixed to different operating parameters of the fluorescent lamp, as will be described in detail below. As a result, very long life of fluorescent lamps can be achieved, and this with a hardly relevant deterioration of the efficiency.
  • a circuit arrangement according to the invention therefore further comprises a device for storing at least one threshold value for at least one operating parameter of the fluorescent lamp, a device for determining the value of the at least one operating parameter and a Heating the first and second coil to activate when, first, the at least one threshold of the at least one operating parameter has been exceeded and, secondly, a switch-off signal has been received via the interface.
  • a circuit device according to the invention in fluorescent lamps, in which the coils may not be heated in a range of dimming positions above 80% of the maximum dimming position, in order to continue to achieve the optimal lamp operating conditions (a so-called cut-off operation).
  • control device is furthermore designed, it is preferred to set the fluorescent lamp to a presettable state during the predefinable time period.
  • This predefinable state can in particular correspond to the switching off of the fluorescent lamp or to a predefinable dimming position, the minimum dimming position being preferred here.
  • FIG. 1 shows a schematic representation of an embodiment of a circuit arrangement according to the invention. It comprises a control line 10, via which, for example, on and off signals and / or dimming signals for a fluorescent lamp 12 are transmitted. These are supplied to an interface 14 of a control device 16, where they are converted into drive signals for the operation of the fluorescent lamp 12. However, they are also supplied to a device 20 for determining at least one value of an operating parameter, wherein the device 20 may be coupled to a timer 18 in order to detect the operating hours of the fluorescent lamp 12. Additionally or alternatively, the device 20 may be designed to determine an operating parameter to count the number of on / off switching operations and / or the number of dimming changes, in particular relevant dimming changes.
  • the device 20 for determining at least one operating parameter supplies the value of the at least one operating parameter to the control device 16.
  • At least one threshold value of at least one corresponding operating parameter of the fluorescent lamp 12 is stored in a memory device 22.
  • the control device 16 now checks whether at least one of the values transmitted by the device 20 for determining the value of at least one operating parameter to the control device 16 exceeds the corresponding threshold value stored in the storage device 22. If so, the controller 16 activates after receiving the next turn-off signal at the interface
  • the fluorescent lamp 12 may already be in the off state or in the state of a predefinable dimming position, for example in the minimum dimming position.
  • the filament heater 24 is activated over a predefinable period of time, wherein the control device 16 includes a timer 26 for this purpose.
  • a circuit arrangement according to the invention can be realized, for example, in an electronic ballast in which, after a predeterminable number of minutes of operation and / or after a predefinable number of on / off switching operations and / or dimming changes, the filament heater 24 is activated over the predefinable period of time.
  • a circuit arrangement according to the invention can also be realized in a control unit for dimming devices, wherein the fluorescent lamp 12 is then operated for a predefinable period of time before the actual shutdown at a predefinable dimming position, in particular at a minimum dimming position after receiving a Abschaltginses.
  • a threshold may be provided to detect only a significant dimming change as an event causing a count in the device 20.
  • a significant dimming change can be defined, for example, by a dimming change by more than 30% of the total possible dimming range.

Description

Technisches GebietTechnical area

Die vorliegende Erfindung betrifft eine Schaltungsanordnung zum Betreiben einer Leuchtstofflampe mit einer ersten und einer zweiten Wendel, wobei die Schaltungsanordnung eine Heizung für die erste und die zweite Wendel umfasst. Sie betrifft überdies ein Verfahren zum Betreiben einer Leuchtstofflampe mit einer ersten und einer zweiten Wendel an einer Schaltungsanordnung mit einer Heizung für die erste und die zweite Wendel.The present invention relates to a circuit arrangement for operating a fluorescent lamp having a first and a second coil, wherein the circuit arrangement comprises a heater for the first and the second coil. It also relates to a method for operating a fluorescent lamp having a first and a second coil on a circuit arrangement with a heater for the first and the second coil.

Stand der TechnikState of the art

Beim Betrieb von Leuchtstofflampen können sich durch verschiedene Effekte Bereiche auf den Wendeln ausbilden, die die Emissionsfähigkeit des Emitters verschlechtern oder sogar gänzlich verhindern. Zu diesen Effekten sind insbesondere die Anlagerung von Verunreinigungen oder von Abbrandstoffen und daraus resultierende Umwandlungsvorgänge zu rechnen. Die genannten Bereiche stehen somit eingeschränkt oder überhaupt nicht mehr für die Emission zur Verfügung, wodurch die maximal mögliche Lebensdauer der Lampe nicht erreicht wird.In the operation of fluorescent lamps, various effects can form regions on the coils which worsen or even completely prevent the emissivity of the emitter. In particular, the addition of impurities or burned-on substances and the resulting conversion processes are to be expected for these effects. The said ranges are thus limited or not at all available for the emission, whereby the maximum possible life of the lamp is not reached.

Eine dauerhafte Wendelheizung, um derartige Anlagerungen zu verhindern, ist unerwünscht aufgrund der damit einhergehenden Dauerverluste, die zu einer erheblichen Verschlechterung des Wirkungsgrads der Leuchtstofflampe führen, sowie aufgrund der Erwärmung des Cold-Spots für die HG-Dampfdruckeinstellung. Das Heizen der Wendeln zum Zünden der Leuchtstofflampe ist sehr kurz, d. h. dieser Heizvorgang beträgt weniger als 0,5 s und ist überwiegend inhomogen. Dadurch können Ablagerungen weder entfernt noch deren Entstehen verhindert werden.Permanent filament heating to prevent such buildup is undesirable due to the concomitant continuous losses that result in a significant degradation in the efficiency of the fluorescent lamp, as well as the heating of the cold spot for the HG vapor pressure adjustment. Heating of coils for ignition the fluorescent lamp is very short, ie this heating process is less than 0.5 s and is predominantly inhomogeneous. As a result, deposits can neither be removed nor their formation prevented.

Aus der GB 2 326 473 A ist ein Leuchtstofflampensystem bekannt, welches die Leuchtstofflampen periodisch abschaltet, um eine Messung des Umgebungslichts zu ermöglichen.From the GB 2 326 473 A For example, a fluorescent lamp system is known which periodically shuts off the fluorescent lamps to allow ambient light to be measured.

Aus der DE 10 2005 017 674 A1 ist ein Verfahren und eine Einrichtung zum Betrieb einer Niederdruckentladungslampe bekannt, welches den Temperaturanstieg in den Heizwendeln bei der Vorheizung vor der Zündung der Niederdruckentladungslampe konstant hält, um die Lebensdauer der Niederdruckentladungslampe zu erhöhen.From the DE 10 2005 017 674 A1 a method and a device for operating a low-pressure discharge lamp is known, which keeps the temperature rise in the heating coils in the preheating prior to the ignition of the low-pressure discharge lamp constant in order to increase the life of the low-pressure discharge lamp.

Darstellung der ErfindungPresentation of the invention

Die Aufgabe der vorliegenden Erfindung besteht deshalb darin, eine eingangs genannte Schaltungsanordnung und ein eingangs genanntes Verfahren derart weiterzubilden, dass eine Verlängerung der Lebensdauer von Leuchtstofflampen ermöglicht wird.Therefore, the object of the present invention is to further develop a circuit arrangement mentioned at the outset and an initially mentioned method such that an extension of the service life of fluorescent lamps is made possible.

Diese Aufgabe wird gelöst durch eine Schaltungsanordnung mit den Merkmalen von Patentanspruch 1 sowie durch ein Verfahren mit den Merkmalen von Patentanspruch 5.This object is achieved by a circuit arrangement having the features of patent claim 1 and by a method having the features of patent claim 5.

Der vorliegenden Erfindung liegt die Erkenntnis zugrunde, dass die oben genannte Aufgabe dadurch optimal gelöst werden kann, wenn die Wendeln in periodischen Abständen aufgeheizt werden, um somit Ablagerungen und die daraus resultierenden, lebensdauerverkürzenden Effekte zu vermeiden. Dabei wird die Periodizität an unterschiedlichen Betriebsparametern der Leuchtstofflampe festgemacht werden, wie weiter unten noch ausführlich angegeben wird. Dadurch lassen sich sehr lange Lebensdauer von Leuchtstofflampen erreichen, und dies bei einer kaum relevanten Verschlechterung des Wirkungsgrads.The present invention is based on the finding that the above-mentioned object can be achieved optimally when the coils are heated at periodic intervals, in order to avoid deposits and the resulting life-shortening effects. In this case, the periodicity will be fixed to different operating parameters of the fluorescent lamp, as will be described in detail below. As a result, very long life of fluorescent lamps can be achieved, and this with a hardly relevant deterioration of the efficiency.

Eine erfindungsgemäße Schaltungsanordnung umfasst demnach weiterhin eine Vorrichtung zum Ablegen mindestens eines Schwellwerts für mindestens einen Betriebsparameter der Leuchtstofflampe, eine Vorrichtung zum Ermitteln des Werts des mindestens einen Betriebsparameters sowie eine Heizung der ersten und der zweiten Wendel zu aktivieren, wenn erstens der mindestens eine Schwellwert des mindestens einen Betriebsparameters überschritten wurde und zweitens über die Schnittstelle ein Ausschaltsignal empfangen wurde. Dies ermöglicht insbesondere die Anwendung einer erfindungsgemäßen Schaltungsvorrichtung bei Leuchtstofflampen, bei denen die Wendeln in einem Bereich von Dimmstellungen über 80 % der maximalen Dimmstellung nicht geheizt werden dürfen, um weiterhin die optimalen Lampenbetriebsbedingungen zu erreichen (ein so genannter Cut-Off-Betrieb). Bevorzugt ist in diesem Zusammenhang, wenn die Steuervorrichtung weiterhin ausgelegt ist, die Leuchtstofflampe während der vorgebbaren Zeitdauer in einen vorgebbaren Zustand zu versetzen. Dieser vorgebbare Zustand kann insbesondere der Abschaltung der Leuchtstofflampe entsprechen oder einer vorgebbaren Dimmstellung, wobei hier die minimale Dimmstellung bevorzugt ist.A circuit arrangement according to the invention therefore further comprises a device for storing at least one threshold value for at least one operating parameter of the fluorescent lamp, a device for determining the value of the at least one operating parameter and a Heating the first and second coil to activate when, first, the at least one threshold of the at least one operating parameter has been exceeded and, secondly, a switch-off signal has been received via the interface. This allows in particular the use of a circuit device according to the invention in fluorescent lamps, in which the coils may not be heated in a range of dimming positions above 80% of the maximum dimming position, in order to continue to achieve the optimal lamp operating conditions (a so-called cut-off operation). In this context, if the control device is furthermore designed, it is preferred to set the fluorescent lamp to a presettable state during the predefinable time period. This predefinable state can in particular correspond to the switching off of the fluorescent lamp or to a predefinable dimming position, the minimum dimming position being preferred here.

Weitere vorteilhafte Ausführungsformen ergeben sich aus den Unteransprüchen.Further advantageous embodiments will become apparent from the dependent claims.

Die mit Bezug auf die erfindungemäße Schaltungsanordnung vorgestellten bevorzugten Ausführungsformen und deren Vorteile gelten, soweit anwendbar, entsprechend für das erfindungemäße Verfahren.The preferred embodiments presented with reference to the circuit arrangement according to the invention and their advantages apply, if applicable, correspondingly to the method according to the invention.

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

Im Nachfolgenden wird nunmehr ein Ausführungsbeispiel unter Bezugnahme auf die beigefügte Zeichnung näher dargestellt. Diese zeigt in schematischer Darstellung ein Ausführungsbeispiel einer erfindungsgemäßen Schaltungsanordnung.In the following, an embodiment will now be described in detail with reference to the accompanying drawings. This shows a schematic representation of an embodiment of a circuit arrangement according to the invention.

Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention

Figur 1 zeigt in schematischer Darstellung ein Ausführungsbeispiel einer erfindungsgemäßen Schaltungsanordnung. Sie umfasst eine Steuerleitung 10, über die beispielsweise Ein- und Ausschaltsignale und/oder Dimmsignale für eine Leuchtstofflampe 12 übertragen werden. Diese werden einer Schnittstelle 14 einer Steuervorrichtung 16 zugeführt, wo sie in Ansteuersignale für den Betrieb der Leuchtstofflampe 12 umgewandelt werden. Sie werden jedoch auch einer Vorrichtung 20 zum Ermitteln mindestens eines Werts eines Betriebsparameters zugeführt, wobei die Vorrichtung 20 mit einem Timer 18 gekoppelt sein kann, um die Betriebsstunden der Leuchtstofflampe 12 zu erfassen. Zusätzlich oder alternativ kann die Vorrichtung 20 zum Ermitteln eines Betriebsparameters ausgelegt sein, die Anzahl der Ein-/Aus-Schaltvorgänge und/oder die Anzahl der Dimmwechsel, insbesondere relevanter Dimmwechsel, zu zählen. FIG. 1 shows a schematic representation of an embodiment of a circuit arrangement according to the invention. It comprises a control line 10, via which, for example, on and off signals and / or dimming signals for a fluorescent lamp 12 are transmitted. These are supplied to an interface 14 of a control device 16, where they are converted into drive signals for the operation of the fluorescent lamp 12. However, they are also supplied to a device 20 for determining at least one value of an operating parameter, wherein the device 20 may be coupled to a timer 18 in order to detect the operating hours of the fluorescent lamp 12. Additionally or alternatively, the device 20 may be designed to determine an operating parameter to count the number of on / off switching operations and / or the number of dimming changes, in particular relevant dimming changes.

Die Vorrichtung 20 zum Ermitteln mindestens eines Betriebsparameters führt den Wert des mindestens einen Betriebsparameters der Steuervorrichtung 16 zu. In einer Speichervorrichtung 22 ist mindestens ein Schwellwert mindestens eines entsprechenden Betriebsparameters der Leuchtstofflampe 12 abgelegt. Die Steuervorrichtung 16 prüft nunmehr, ob mindestens einer der von der Vorrichtung 20 zum Ermitteln des Werts mindestens eines Betriebsparameters an die Steuervorrichtung 16 übertragener Werte den entsprechenden Schwellwert, der in der Speichervorrichtung 22 abgelegt ist, überschreitet. Wenn dies der Fall ist, aktiviert die Steuervorrichtung 16 nach dem Empfang des nächsten Ausschaltsignals an der Schnittstelle 14 eine Wendelheizung 24. Dabei kann sich die Leuchtstofflampe 12 bereits im ausgeschalteten Zustand befinden oder im Zustand einer vorgebbaren Dimmstellung, beispielsweise in der minimalen Dimmstellung. Die Wendelheizung 24 wird über eine vorgebbare Zeitdauer aktiviert, wobei die Steuervorrichtung 16 zu diesem Zweck einen Timer 26 umfasst.The device 20 for determining at least one operating parameter supplies the value of the at least one operating parameter to the control device 16. At least one threshold value of at least one corresponding operating parameter of the fluorescent lamp 12 is stored in a memory device 22. The control device 16 now checks whether at least one of the values transmitted by the device 20 for determining the value of at least one operating parameter to the control device 16 exceeds the corresponding threshold value stored in the storage device 22. If so, the controller 16 activates after receiving the next turn-off signal at the interface In this case, the fluorescent lamp 12 may already be in the off state or in the state of a predefinable dimming position, for example in the minimum dimming position. The filament heater 24 is activated over a predefinable period of time, wherein the control device 16 includes a timer 26 for this purpose.

Es ist ohne Weiteres möglich, die Elemente 14, 16, 18, 20, 22, 26 in einer Einheit zu integrieren, wobei dann nur ein Timer vorgesehen zu sein braucht, der dann die Funktion des Timers 18 und des Timers 26 übernimmt. Eine erfindungsgemäße Schaltungsanordnung kann beispielsweise in einem elektronischen Vorschaltgerät realisiert sein, bei dem nach einer vorgebbaren Anzahl von Betriebsminuten und/oder nach einer vorgebbaren Anzahl von Ein-/Aus-Schaltvorgängen und/oder Dimmwechseln die Wendelheizung 24 über die vorgebbare Zeitdauer aktiviert wird.It is readily possible to integrate the elements 14, 16, 18, 20, 22, 26 in one unit, in which case only one timer needs to be provided, which then assumes the function of the timer 18 and the timer 26. A circuit arrangement according to the invention can be realized, for example, in an electronic ballast in which, after a predeterminable number of minutes of operation and / or after a predefinable number of on / off switching operations and / or dimming changes, the filament heater 24 is activated over the predefinable period of time.

Sie kann auch realisiert sein in einem DALI-Steuergerät, wobei dann bevorzugt ist, die Wendelheizung 24 im Stand-By-Modus, d. h. bei ausgeschalteter Leuchtstofflampe 12, oder nach dem "Licht aus"-Kommando bei eingeschalteter Leuchtstofflampe 12 in einer vorgebbaren Dimmstellung, insbesondere in der minimalen Dimmstellung, zu betreiben.It can also be realized in a DALI control unit, wherein it is then preferable to have the coil heating 24 in stand-by mode, ie. H. when the fluorescent lamp 12 is switched off, or after the "light off" command when the fluorescent lamp 12 is switched on, to operate in a predefinable dimming position, in particular in the minimum dimming position.

Eine erfindungsgemäße Schaltungsanordnung kann auch realisiert sein in einem Steuergerät für Dimm-Geräte, wobei dann nach Empfang eines Abschaltwunsches die Leuchtstofflampe 12 über eine vorgebbare Zeitdauer vor der tatsächlichen Abschaltung bei einer vorgebbaren Dimmstellung, insbesondere bei einer minimalen Dimmstellung, betrieben wird.A circuit arrangement according to the invention can also be realized in a control unit for dimming devices, wherein the fluorescent lamp 12 is then operated for a predefinable period of time before the actual shutdown at a predefinable dimming position, in particular at a minimum dimming position after receiving a Abschaltwunsches.

Mit Bezug auf die in dem vorgenannten Text erwähnten Dimmwechsel kann eine Schwelle vorgesehen sein, um nur einen signifikanten Dimmwechsel als ein Ereignis zu erfassen, das einen Zählvorgang in der Vorrichtung 20 bewirkt. Ein signifikanter Dimmwechsel kann beispielsweise definiert sein durch einen Dimmwechsel um mehr als 30% des gesamten möglichen Dimmbereichs.With reference to the dimming change mentioned in the aforementioned text, a threshold may be provided to detect only a significant dimming change as an event causing a count in the device 20. A significant dimming change can be defined, for example, by a dimming change by more than 30% of the total possible dimming range.

Claims (5)

  1. Circuit arrangement for operating a fluorescent lamp (12) with a first and a second filament, the circuit arrangement comprising a heater (24) for the first and the second filament, wherein the circuit arrangement furthermore comprises:
    - an apparatus (22) for storing at least one threshold value for at least one operational parameter of the fluorescent lamp (12);
    - an apparatus (20) for determining the value of the at least one operational parameter; and
    - a control apparatus (16), which is designed to activate the heater (24) for the first and the second filament for a predeterminable period of time in the event of the at least one threshold value for the at least one operational parameter being exceeded by the determined value of the at least one operational parameter,
    characterized in that
    the predeterminable period of time is at least 2 seconds, in particular 1 minute,
    and in that
    the at least one operational parameter is the operating duration of the fluorescent lamp (12),
    and/or
    the at least one operational parameter is the number of switch-on/switch-off operations of the fluorescent lamp (12),
    and/or
    the at least one operational parameter is the number of dimming changes of the fluorescent lamp (12).
  2. Circuit arrangement according to Claim 1,
    characterized
    in that the control apparatus (16) has an interface (14), which is designed to receive switch-on and switch-off signals for the fluorescent lamp (12), the control apparatus (16) being designed to activate the heater (24) of the first and the second filament if, firstly, the at least one threshold value of the at least one operational parameter has been exceeded and, secondly, a switch-off signal has been received via the interface (14).
  3. Circuit arrangement according to Claim 2,
    characterized
    in that the control apparatus (16) is furthermore designed to set the fluorescent lamp (12) to a predeterminable state during the predeterminable period of time.
  4. Circuit arrangement according to Claim 3,
    characterized
    in that the predeterminable state corresponds to the disconnection of the fluorescent lamp (12) or to a predeterminable dimming setting, preferably the minimum dimming setting.
  5. Method for operating a fluorescent lamp (12) with a first and a second filament using a circuit arrangement with a heater (24) for the first and the second filament, comprising the following steps:
    a) fixing at least one threshold value for at least one operational parameter of the fluorescent lamp (12); and
    b) in the event of the at least one threshold value being exceeded: activation of the heater (24) for the first and the second filament for a predeterminable period of time,
    wherein the method is characterized in that the predeterminable period of time is at least 2 seconds, in particular 1 minute, and in that
    the at least one operational parameter is the operating duration of the fluorescent lamp (12),
    and/or
    the at least one operational parameter is the number of switch-on/switch-off operations of the fluorescent lamp (12),
    and/or
    the at least one operational parameter is the number of dimming changes of the fluorescent lamp (12).
EP07728797.7A 2007-05-04 2007-05-04 Circuit arrangement, and method for the operation of a fluorescent lamp Not-in-force EP2153703B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2007/054344 WO2008135086A1 (en) 2007-05-04 2007-05-04 Circuit arrangement, and method for the operation of a fluorescent lamp

Publications (2)

Publication Number Publication Date
EP2153703A1 EP2153703A1 (en) 2010-02-17
EP2153703B1 true EP2153703B1 (en) 2016-12-21

Family

ID=38920645

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07728797.7A Not-in-force EP2153703B1 (en) 2007-05-04 2007-05-04 Circuit arrangement, and method for the operation of a fluorescent lamp

Country Status (5)

Country Link
US (1) US8358072B2 (en)
EP (1) EP2153703B1 (en)
KR (1) KR101436065B1 (en)
CN (1) CN101658075A (en)
WO (1) WO2008135086A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997011586A1 (en) * 1995-09-19 1997-03-27 Beacon Light Products, Inc. Method of regulating lamp current through a fluorescent lamp by pulse energizing a driving supply
GB2326473B (en) * 1997-06-21 2001-05-02 Sli Lighting Ltd Lighting system
US7116055B2 (en) 2003-10-15 2006-10-03 Lutron Electronics Co., Inc. Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps
JP4561350B2 (en) 2004-12-20 2010-10-13 東芝ライテック株式会社 Discharge lamp lighting device, lighting fixture, and lighting system
DE102005017674B4 (en) * 2005-04-11 2011-12-15 RS-Electronic GbR (vertretungsberechtigter Gesellschafter Dipl.-Ing. Reinhold Seidel, 16816 Neuruppin) Method and device for operating a low-pressure gas discharge lamp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2153703A1 (en) 2010-02-17
KR101436065B1 (en) 2014-08-29
CN101658075A (en) 2010-02-24
US20100134012A1 (en) 2010-06-03
WO2008135086A1 (en) 2008-11-13
US8358072B2 (en) 2013-01-22
KR20100017639A (en) 2010-02-16

Similar Documents

Publication Publication Date Title
EP1103165B1 (en) Electronic ballast for at least one low-pressure discharge lamp
EP1928009B1 (en) Arc detection system, plasma power supply and arc detection method
EP2123133B1 (en) Universal electronic ballast for operating hg-free and hg-containing discharge lamps
EP1933362A1 (en) Arc detection system, plasma power supply and arc detection method
EP0732869B1 (en) Process and circuit for operating a discharge lamp
EP2153703B1 (en) Circuit arrangement, and method for the operation of a fluorescent lamp
EP1207340B1 (en) Method of controling a burner
EP1736038B1 (en) Circuit arrangement and method for striking a gas discharge lamp with a time-limited starting phase
EP3156729B1 (en) Method for recalibration of a burner device for liquid fuel
EP1492385B1 (en) Method and device of determination of heating processus
EP1843645B1 (en) Switching assembly for high pressure gas discharge lamps
EP1045619A1 (en) Calibration method of operating parameters of a lamp ballast
WO1997008920A1 (en) Process and circuit for striking a high-pressure gas discharge lamp
EP2260682B1 (en) Method and operating device for minimizing the insulation stress of a high-pressure discharge lamp system
WO2007065814A1 (en) Method for the detection of a fault during the operation of high-pressure discharge lamps on ballasts
EP1691587B1 (en) Method and apparatus to regulate and control a heating coil for lamps
DE102005042527B4 (en) Circuit arrangement and method for operating a discharge lamp
WO2012034931A1 (en) Method for operating a gas discharge lamp of a motor vehicle headlamp
EP1209417B1 (en) Method for operating a gas burner
DE10057225C2 (en) Method of operating a gas burner for a heater
EP3156730B1 (en) Method of calibrating a burner device for liquid fuels and control device for a burner device
WO2008015200A1 (en) Circuit arrangement and method for operating at least one discharge lamp
DE102005014857A1 (en) Cold cathode fluorescent tube lamp for piece of furniture or display cabinet has tube of sinusoidal shape on circular backplate with switch and starter circuit and has circular transparent cover
EP2247169A1 (en) Method and electronic pre-switching device for operating a high pressure discharge lamp
EP1705963A2 (en) Circuit for operating at least two lamps

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20090917

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK RS

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20110824

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM AG

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM GMBH

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: OSRAM GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160816

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 856483

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170115

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502007015342

Country of ref document: DE

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

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20161221

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

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170322

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

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

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

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170421

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20170523

Year of fee payment: 11

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

Ref country code: LU

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

Effective date: 20170531

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170421

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170321

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20170511

Year of fee payment: 11

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502007015342

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed

Effective date: 20170922

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

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170504

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

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

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

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

Ref country code: LI

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

Effective date: 20170531

Ref country code: CH

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

Effective date: 20170531

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20180131

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

Ref country code: LU

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

Effective date: 20170504

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20170531

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

Ref country code: GB

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

Effective date: 20170504

Ref country code: IE

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

Effective date: 20170504

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

Ref country code: FR

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

Effective date: 20170531

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 856483

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170504

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

Ref country code: BE

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

Effective date: 20170531

Ref country code: AT

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

Effective date: 20170504

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

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502007015342

Country of ref document: DE

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

Ref country code: FI

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

Effective date: 20180504

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

Ref country code: DE

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

Effective date: 20181201

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

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20070504

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

Ref country code: CY

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

Effective date: 20161221

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

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20161221