EP1223792B1 - Circuit d'amorçage des lampes électriques - Google Patents

Circuit d'amorçage des lampes électriques Download PDF

Info

Publication number
EP1223792B1
EP1223792B1 EP01129450A EP01129450A EP1223792B1 EP 1223792 B1 EP1223792 B1 EP 1223792B1 EP 01129450 A EP01129450 A EP 01129450A EP 01129450 A EP01129450 A EP 01129450A EP 1223792 B1 EP1223792 B1 EP 1223792B1
Authority
EP
European Patent Office
Prior art keywords
circuit
inverter
capacitor
deactivating
starting
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.)
Expired - Lifetime
Application number
EP01129450A
Other languages
German (de)
English (en)
Other versions
EP1223792A1 (fr
Inventor
Bernd Rudolph
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
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Publication of EP1223792A1 publication Critical patent/EP1223792A1/fr
Application granted granted Critical
Publication of EP1223792B1 publication Critical patent/EP1223792B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • 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
    • H05B41/282—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
    • H05B41/285—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • H05B41/2851—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2855—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions against abnormal lamp operating conditions

Definitions

  • the invention relates to a circuit arrangement according to the preamble of the claim 1.
  • Such a circuit arrangement is for example in the European patent application EP 0 682 464 A1.
  • This publication discloses a self-oscillating inverter with a starting circuit that starts to oscillate of the inverter is used.
  • the circuit arrangement also a device for deactivating the starting circuit.
  • This device contains as an essential element a transistor whose switching path in the switched Condition a shunt to the charging capacitor of the starting circuit forms. After the inverter starts up, the transistor is turned on and the starting device deactivated.
  • European Patent Application EP 0 753 987 A1 describes a circuit arrangement with an inverter for applying one or more lamps with a medium or high frequency supply voltage and with a Start circuit, which serves to start the inverter oscillation.
  • this circuit also a device for deactivating the Starting circuit on.
  • This device consists of a resistor and a Diode over which the capacitor of the starting device after the oscillation of the Inverter is discharged, so that the starting device no further Trigger pulses for driving the inverter can generate.
  • the inverter is using a bistable shutdown device shut down. To reset the bistable shutdown device and so to allow a restart of the inverter, the power supply must of the inverter or the lamp at least temporarily interrupted become.
  • the patent US 6,137,241 describes a starter circuit in ballasts and fluorescent lamps with different power consumption is usable.
  • This start circuit has a first rectifier, a semiconductor switching element a control input and a first resistor for monitoring a current flow through the semiconductor switching element.
  • a first timer for Turning off the semiconductor switching element and a control unit for the semiconductor switching element intended.
  • the circuit arrangement according to the invention has an inverter for generating a medium or high frequency supply voltage for one or more Lamps and a start circuit for the inverter and a device for Disabling the starting circuit, wherein the starting circuit is a voltage-dependent Having switching means and a capacitor.
  • the device for deactivating the Start circuit has a switching means whose switching path parallel to the capacitor the starting device is arranged.
  • To control this switching means is the Device for deactivating the starting circuit according to the invention with a Threshold switch provided.
  • This measure deactivates the Starting circuit guaranteed even with non-oscillating inverter.
  • the measure according to the invention can also be a simpler and less expensive shutdown device can be used to switch off the inverter if the lamp is faulty.
  • the threshold switch is arranged and the device for deactivating the Start circuit is designed so that after switching off the supply voltage for the inverter, the reset time of the threshold switch or the reset duration of the device for deactivating the starting circuit shorter than the decay time of the inverter. This will ensure that the circuit arrangement immediately after switching off the supply voltage can be put back into operation without delay. Furthermore the threshold switch is arranged and the device for deactivating the Start circuit is designed so that after switching on the supply voltage for the inverter, the threshold value delayed with respect to Start circuit is activated. This will ensure that the startup circuit generate at least one or two trigger pulses to oscillate the inverter can before it is deactivated by means of the threshold switch.
  • Another advantage of the circuit arrangement according to the invention is that instead of a bistable shutdown device designed as a threshold Shutdown device can be used, which is less expensive and has a simpler structure.
  • the trained as a threshold value switch-off device is not bistable and can in particular without further Measures ensure a stable shutdown.
  • the device for deactivating the starting circuit has a means which, when switched on Supply voltage for the inverter and after the response of the shutdown device, for maintaining the deactivated state of the starting circuit serves, and the device for deactivating the starting circuit with the as Threshold switch trained shutdown device cooperates is ensured in the circuit arrangement according to the invention that after the response the shutdown device the oscillation of the inverter permanently is stopped and a restart of the oscillation of the inverter until after one switching on the supply voltage for the inverter or for the Lamp is possible.
  • the time-delayed deactivation of the starting circuit means of the threshold switch belonging to the device for deactivating the starting circuit realize the start-up circuit and the device for deactivating the start circuit advantageously different sized RC elements on.
  • the time constants of the two aforementioned RC elements are so one upon another tuned that after switching on the supply voltage for the Inverter the threshold voltage of the trigger component of the starting device earlier is reached as the threshold voltage of the device for deactivating the start circuit belonging threshold switch.
  • the time constant of belonging to the start circuit RC element advantageously smaller as the time constant of the device belonging to the device for deactivating the starting circuit RC element.
  • To provide a sufficiently short reset duration of the device for deactivating the To achieve starting circuit is advantageously parallel to that of the device for deactivating the starting circuit belonging RC element is a discharge resistor arranged to discharge the capacitor when the supply voltage for the inverter.
  • the discharge resistor and the capacitor of the aforementioned RC element are dimensioned such that the product of the resistance value the resistance and the capacitance value of the capacitor smaller than 500 ms and preferably even less than 100 ms. This is the aforementioned Capacitor after the oscillation of the inverter almost decayed completely discharged.
  • the device for deactivating the starting device an advantageously designed as a transistor switching means, whose switching path parallel to the capacitor of the starting circuit belonging to the RC element is arranged, wherein the device for deactivating the starting device associated threshold with the control electrode of the transistor and with the Capacitor belonging to the device for deactivating the start circuit RC element is connected.
  • the switching path of this transistor forms in the low-resistance Switching state a shunt to the capacitor of the starting device and therefore ensures discharge of the starting circuit belonging capacitor or prevented recharging this capacitor.
  • the already mentioned above means that, when the supply voltage for the inverter and after the activation of the shutdown device, to Maintaining the deactivated state of the starting circuit is advantageously from an electrical connection between the power supply of the inverter and the control electrode of the transistor, the aforementioned electrical connection via the device for deactivating the starting circuit belonging threshold value is performed. As a result, the transistor remains in the on state, after the oscillation of the inverter through the shutdown device has been terminated. The start circuit therefore remains in disabled state.
  • the Steueruansformator of the self-oscillating oscillator (or an additional winding on a lamp choke) used, whose primary winding is arranged in a load circuit of the inverter is and its secondary winding for controlling the control electrode of the device is used to disable the start circuit belonging transistor.
  • the transformer With help of the transformer is monitored the oscillation of the inverter and the the aforementioned transistor is driven accordingly.
  • FIG. 1 shows a schematic representation of a circuit diagram of preferred embodiment of the circuit arrangement according to the invention.
  • the circuit arrangement shown in the figure serves to operate a low-pressure discharge lamp with an electrical power consumption of about 18 W.
  • This Circuit arrangement has a self-oscillating half-bridge inverter, the essentially of the alternating switching transistors 1, 2 and the Freewheeling diodes 12, 13 and of the toroidal transformer 3-5 is formed.
  • the Toroidal transformer 3-5 is used to control the transistors 1 and 2.
  • To this Purpose is the primary winding 3 of the toroidal transformer in the series resonant circuit formed load circuit of the half-bridge inverter, while the secondary windings 4 and 5 respectively via a base resistor 6 and 7 with a base electrode of a half-bridge inverter transistor 1 and 2 are connected.
  • the control device for the transistors 1 and 2 becomes by the emitter resistors 8 and 9, the resistors 10, 11 and the capacitor 22, which reduces the switching losses in the transistors 1, 2, completed.
  • the Load circuit is connected to the center tap between the transistors 1, 2 of the half-bridge inverter connected. It contains in addition to the primary winding 3 of the toroidal transformer a coupling capacitor 14, a resonance inductance 15 and a resonant capacitor 16.
  • the terminals 17-20 for the electrode coils of Low-pressure discharge lamp 21 are arranged such that the discharge path the low-pressure discharge lamp 21 is connected in parallel with the resonance capacitor 16 is.
  • the power supply of the half-bridge inverter is done by Rectifying the AC mains voltage using one of four diodes 23-26 Bridge rectifier and a capacitor 27, which is parallel to the DC output of the bridge rectifier 23-26 is arranged.
  • To the Capacitor 27 is therefore a smoothed DC voltage as a power supply ready for the half-bridge inverter.
  • the coupling capacitor 14 is charged after turning on the power supply through the resistor 51.
  • One of a capacitor 28 and a current-compensated inductor 29 existing Filter circuit connected to the mains voltage terminals 30, 31 and with the AC input of the bridge rectifier 23-26 is connected, is used for Radio interference suppression of the circuit arrangement.
  • the circuit has a starting device for the half-bridge inverter, the substantially consists of the resistor 32 and the capacitor 33 and the Diac 34.
  • the Start circuit serves to initiate the oscillation of the half-bridge inverter, by turning on the power supply for the half-bridge inverter Trigger pulses for the base electrode of the transistor 2 generated.
  • the circuit arrangement further comprises a device for deactivating the starting circuit and a shutdown device for shutting down the half-bridge inverter on defective lamp.
  • the device for deactivating the starting circuit consists of the transistor 35 whose switching path is parallel to the capacitor 33 of the start circuit is arranged, from the RC element 36, 37, which is parallel to the RC element 32, 33 is connected, from the resistor 38, for discharging the capacitor 37 is used with switched off or interrupted power supply, from the Zener diode 39, the cathode on the one hand via the resistor 36 and the terminals 17, 18 and via an electrode coil of the lamp 21 with the positive pole of Capacitor 27 and on the other hand with the located at the higher potential Connection of the capacitor 37 is connected and whose anode is connected to the base of the Transistor 35 is connected, and from the base resistor 40, via which the base of the transistor 35 connected to the secondary winding 5 of the toroidal transformer is.
  • the shutdown device for decommissioning the half-bridge inverter is as Threshold formed and consists of the transistor 41, the switching path parallel to the series connection of the base resistor 7 of the transistor 2 and the secondary winding 5 is connected, from the Diac 42, the on reaching its threshold voltage generates trigger pulses for the base of transistor 41, from the series resistors 43, 44, from the capacitor 45, the power supply Diacs 42 and the base of the transistor 41 serves, from the voltage divider resistors 46, 47, with their help one to the operating voltage of the lamp 21st proportional voltage is generated and with their help the threshold voltage is set to activate the shutdown device, from the capacitor 48, which serves to decouple the DC component in the lamp current, and from the rectifier diodes 49, 50 serving as current valves.
  • a suitable dimensioning of the components of the circuit arrangement is in the Table specified.
  • the coupling capacitor 14 via the resistor 51 and the capacitor 33 of the starting circuit charged via the resistor 32.
  • the diac generates 34 trigger pulses for the base of the transistor 2. This will cause the oscillation of the half-bridge inverter triggered.
  • the two transistors 1, 2 of the half-bridge inverter switch alternately, so that in the load circuit a medium or high frequency current flows. The frequency of this current is due to the switching frequency of the transistors 1, 2 certainly.
  • the load circuit is designed as a series resonant circuit, can be connected to the resonant capacitor 16 by means of the method of resonance overshoot the ignition the gas discharge in the lamp 21 required ignition voltage provided become. After ignition of the gas discharge, the capacitor 16 through the then conductive discharge path of the low-pressure discharge lamp 21 short-circuited.
  • the starting circuit is immediately after the start of the half-bridge inverter by means of the primary winding 3 and the secondary winding connected in the load circuit 5 of the toroidal transformer disabled.
  • a medium or high-frequency current in the secondary winding 5 a corresponding voltage for controlling the bases of the transistors 2 and 35 induced.
  • the transistor 35 is therefore via its base resistor 40 is turned on and thereby the capacitor 33 through the transistor 35 discharge, so that the threshold voltage of Diac 34 is no longer reached and Diac 34 generates no further trigger pulses. Due to the control through the transformer windings 3, 5, the transistor 35 switches in the same Rhythm as the transistor 2. However, the capacitor 33 is not significantly charged.
  • the base of the transistor 35 also becomes via the RC element 36, 37 and the Zener diode 39 is driven.
  • the capacitor 37 is at the same time via the resistor 36 after switching on the power supply charged with the capacitor 33. Since the time constant of the RC element 36, 37 but greater than the time constant of the RC element 32, 33 of the starting circuit, At capacitor 33, the threshold voltage required for switching on diac 34 is reached provided earlier, as the capacitor 37 for the switching of the Zener diode 39 required threshold voltage.
  • the Diac 34 can therefore at least generate one or two trigger pulses to control the base of transistor 2, before the capacitor 37 is charged to the threshold voltage of the zener diode 39 is and the transistor 35 is turned on via the Zener diode 39.
  • the shutdown device monitors by means of the voltage divider resistors 46, 47 and the capacitor 48 and the rectifier diode 49, the positive half-wave the AC voltage component of the operating voltage of the low-pressure discharge lamp 21.
  • the capacitor 48 is only for the AC voltage component of the lamp operating voltage permeable. The negative half wave of this AC voltage component is clamped by the diode 50 to ground.
  • the resistor 47 is one to the positive Half-wave of the AC voltage component of the lamp operating voltage proportional Voltage on. At the same voltage value is also the capacitor 45 charged. In the case of a lamp unwanted or defective 21 or for the case that the operating voltage of the lamp 21 due to aging excessively increased is the voltage drop across the capacitor 45 reaches the threshold voltage Diac 42.
  • the Diac 42 then generates trigger pulses for the base of the Transistor 41.
  • the transistor 41 is thereby via the resistor 43, the diac 42 and the base resistor 44 is turned on and deprives the base of the transistor. 2 the control signal, so that the oscillation of the half-bridge inverter ends becomes.
  • the transistor 41 remains only so long in the on state until the Capacitor 45 has discharged so far that the voltage drop across the capacitor 45th is less than the threshold voltage of Diacs 42. Thereafter, the transistor 41 returns back to the locked state. Because the startup circuit by discharging the capacitor 33 is deactivated via the turned-on transistor 35, the Diac 34 no trigger pulses for a renewed oscillation of the half-bridge inverter produce.
  • the half-bridge inverter is thus permanently shut down, although the Base of the transistor 2 only for a relatively short period of time the control signal withdrawn has been.
  • the startup circuit In order to enable a renewed oscillation of the half-bridge inverter, must first by resetting the transistor 35 in the locked State the startup circuit will be reactivated. That can be explained by a short-term Interruption of the power supply of the circuit arrangement or by a Replacing the lamp 21 reach.
  • the duration for decay is the oscillation of the half-bridge inverter about 0.5 s to 1 s.
  • the two Components 37, 38 are dimensioned such that the capacitor 37 at the end of the oscillation of the half-bridge inverter is almost completely discharged.
  • the invention is not limited to the exemplary embodiment explained above.
  • the circuit arrangement according to the invention can, for example, additionally Have temperature compensation, which for adjusting the switch-off threshold the shutdown device to the temperature-dependent burning voltage of the lamp 21 serves. It has been shown that the operating voltage of the lamp with increasing Temperature can decrease.
  • a temperature compensation element is provided, the the correspondingly dimensioned parallel connection of an ohmic resistor with a thermistor. This parallel connection can, for example, at the node, which is defined by the components 48, 49, 50, in the inventive Circuit arrangement can be integrated.
  • a PTC thermistor can be arranged to ignite before the gas discharge in the lamp 21 to allow preheating their electrode filaments.
  • the circuit arrangement according to the invention may additionally also have a harmonic filter according to the patent EP 0 244 644 to a sinusoidal To ensure mains current drain.
  • the shutdown device in addition to the lamp operating voltage and the voltage drop across the capacitor 27 monitor, for example, the positive terminal of the capacitor 27 via a polarized in the reverse direction Zener diode with the through the components 43, 45 and 49 defined node is connected.
  • the circuit arrangement according to the invention can also be designed such that it is suitable for the operation of a plurality of low-pressure discharge lamps connected in series or in parallel.
  • the shutdown device according to the invention can also be used in circuit arrangements for operating high-pressure discharge lamps or halogen incandescent lamps.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (8)

  1. Circuit pour faire fonctionner des lampes électriques, le circuit comprenant un onduleur de production d'une tension d'alimentation en moyenne fréquence ou en haute fréquence pour une lampe (21) ou pour plusieurs lampes (21) et un circuit d'amorçage de l'onduleur, ainsi qu'un dispositif de désactivation du circuit d'amorçage, le circuit d'amorçage comprenant un élément (34) de commutation en fonction de la tension et un condensateur (33), et le dispositif de désactivation du circuit d'amorçage comprenant un moyen (35) de commutation dont la section de commutation est montée en parallèle au condensateur (33) du circuit d'amorçage,
       caractérisé en ce que le dispositif de désactivation du circuit d'amorçage comporte un commutateur (39) à valeur de seuil de commande du moyen (35) de commutation, le commutateur (39) à valeur de seuil étant disposé et le dispositif d'activation du circuit d'amorçage étant constitué de façon à ce que, après l'application de la tension d'alimentation de l'onduleur, le commutateur (39) à valeur de seuil soit activé avec retard dans le temps par rapport au circuit d'amorçage et, après que la tension d'alimentation de l'onduleur cesse d'être appliquée, la durée de retour à l'état initial du commutateur (39) à valeur de seuil ou la durée de remise à l'état initial du dispositif de désactivation du circuit d'amorçage est plus courte que la durée d'amortissement de l'onduleur.
  2. Circuit suivant la revendication 1, caractérisé en ce que le circuit comprend un dispositif de déconnexion, qui est constitué en interrupteur à valeur de seuil et qui sert à déconnecter l'onduleur lorsque la lampe (21) est défectueuse ou ne veut pas s'amorcer et le dispositif de désactivation du circuit d'amorçage comporte un moyen qui, lorsque l'alimentation en tension de l'onduleur est branchée et après la réponse du dispositif d'interruption, sert à maintenir l'état désactivé du circuit d'amorçage.
  3. Circuit suivant la revendication 1, caractérisé en ce que le circuit d'amorçage comporte une résistance (32) qui forme avec le condensateur (33) du circuit d'amorçage un élément RC, et le dispositif de désactivation du dispositif d'amorçage a un élément RC (36, 37), la constante de temps de l'élément RC (32, 33) du circuit d'amorçage étant plus petite que la constante de temps de l'élément RC (36, 37) du dispositif de désactivation du dispositif d'amorçage.
  4. Circuit suivant la revendication 3, caractérisé en ce qu'il est monté en parallèle au condensateur (37) de l'élément RC du dispositif de désactivation du dispositif d'amorçage, une résistance (38) qui sert à décharger le condensateur (37) lorsque la tension d'alimentation de l'onduleur ne s'applique pas, la résistance (38) et le condensateur (37) ayant des dimensions telles que le produit de la valeur de la résistance (38) par la capacité du condensateur (37) soit inférieur à 500 ms.
  5. Circuit suivant la revendication 3, caractérisé en ce que le moyen (35) de commutation du dispositif de désactivation du dispositif d'amorçage est constitué sous la forme d'un transistor dont la section de commutation est montée en parallèle au condensateur (33) de l'élément RC (32, 33) appartenant au circuit d'amorçage, le commutateur (39) à valeur de seuil étant relié à l'électrode de commande du transistor (35) et au condensateur (37) de l'élément RC (36, 37) faisant partie du dispositif de désactivation du circuit d'amorçage.
  6. Circuit suivant la revendication 5, caractérisé en ce que le moyen de maintien de l'état désactivé du circuit d'amorçage, lorsque l'alimentation en tension de l'onduleur est branchée et après la réponse du dispositif d'interruption, est constitué d'une liaison électrique entre l'alimentation en tension de l'onduleur et l'électrode de commande du transistor (35), qui passe par le commutateur (39) à valeur de seuil faisant partie du dispositif de désactivation du circuit d'amorçage.
  7. Circuit suivant la revendication 5, caractérisé en ce que le circuit comporte un transformateur dont l'enroulement (3) primaire est monté dans un circuit de charge de l'onduleur et qui a un enroulement (5) secondaire qui sert à commander le transistor (35).
  8. Circuit suivant la revendication 2, caractérisé en ce qu'il est prévu un élément de compensation de la température, qui est relié à l'entrée de tension du dispositif d'interruption et qui sert à adapter le seuil d'interruption du dispositif d'interruption à la variation, en fonction de la température, de la tension d'amorçage de la lampe.
EP01129450A 2001-01-03 2001-12-10 Circuit d'amorçage des lampes électriques Expired - Lifetime EP1223792B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10100037 2001-01-03
DE10100037A DE10100037A1 (de) 2001-01-03 2001-01-03 Schaltungsanordnung zum Betrieb von elektrischen Lampen

Publications (2)

Publication Number Publication Date
EP1223792A1 EP1223792A1 (fr) 2002-07-17
EP1223792B1 true EP1223792B1 (fr) 2005-02-16

Family

ID=7669681

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129450A Expired - Lifetime EP1223792B1 (fr) 2001-01-03 2001-12-10 Circuit d'amorçage des lampes électriques

Country Status (5)

Country Link
US (1) US6525489B2 (fr)
EP (1) EP1223792B1 (fr)
AT (1) ATE289476T1 (fr)
CA (1) CA2366894A1 (fr)
DE (2) DE10100037A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4060617B2 (ja) * 2002-03-13 2008-03-12 株式会社小糸製作所 放電灯点灯回路
DE102005028239A1 (de) * 2005-06-17 2006-12-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung und Verfahren zum Betrieb von Hochdruck-Entladungslampen
US7956550B2 (en) * 2008-03-07 2011-06-07 General Electric Company Complementary application specific integrated circuit for compact fluorescent lamps
EP2651195A1 (fr) * 2012-04-13 2013-10-16 Helvar Oy Ab Circuit, procédé et agencement pour le fonctionnement d'un demi-pont auto-oscillant fournissant de l'énergie à une lampe

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3611611A1 (de) 1986-04-07 1987-10-08 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum hochfrequenten betrieb einer niederdruckentladungslampe
DE4140557A1 (de) * 1991-12-09 1993-06-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer oder mehrerer niederdruckentladungslampen
US5406177A (en) * 1994-04-18 1995-04-11 General Electric Company Gas discharge lamp ballast circuit with compact starting circuit
DE4416401A1 (de) 1994-05-09 1995-11-16 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betreiben elektrischer Lampen
DE4425859A1 (de) * 1994-07-21 1996-01-25 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb einer oder mehrerer Niederdruckentladungslampen
US5783911A (en) * 1995-07-12 1998-07-21 Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh Circuit arrangement for operating electric lamps, and operating method for electric lamps
JP3607428B2 (ja) * 1996-08-08 2005-01-05 松下電器産業株式会社 蛍光ランプ点灯装置
US5994848A (en) * 1997-04-10 1999-11-30 Philips Electronics North America Corporation Triac dimmable, single stage compact flourescent lamp
DE69702896T2 (de) * 1997-04-23 2001-01-18 Magnetek S.P.A., Siena Stromversorgung für Entladungslampen mit Ueberspannungsschutz
US5982159A (en) * 1997-07-31 1999-11-09 Philips Electronics North America Corporation Dimmable, single stage fluorescent lamp
DE19819027A1 (de) * 1998-04-29 1999-11-04 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb mindestens einer Entladungslampe
DE19909530A1 (de) * 1999-03-04 2001-01-18 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum Betrieb mindestens einer Hochdruckentladungslampe und Betriebsverfahren
US6144172A (en) * 1999-05-14 2000-11-07 Matsushita Electric Works R&D Laboratory, Inc. Method and driving circuit for HID lamp electronic ballast

Also Published As

Publication number Publication date
CA2366894A1 (fr) 2002-07-03
ATE289476T1 (de) 2005-03-15
US6525489B2 (en) 2003-02-25
DE50105361D1 (de) 2005-03-24
US20020140369A1 (en) 2002-10-03
EP1223792A1 (fr) 2002-07-17
DE10100037A1 (de) 2002-07-04

Similar Documents

Publication Publication Date Title
EP0798952B1 (fr) Circuit pour l'opération de lampes électriques et procédé d'opération
EP0800335B1 (fr) Circuit pour alimenter des lampes électriques
DE69628739T2 (de) Steuerung und überwachung von dimmbaren vorschaltgeräten mit breitem beleuchtungshub
DE2941822C2 (fr)
DE69511315T2 (de) Vorschaltgerät für eine Entladungslampe
EP1519638B1 (fr) Méthode pour commander une lampe à décharge basse pression
DE60205830T2 (de) Vorschaltgerät mit effizienter Elektroden-Vorheizung und Lampenfehlerschutz
DE60112489T2 (de) EVG-Leistungssteuerung für Keramik Metall-Halogenid Lampe
DE3881025T2 (de) Schaltung fuer eine hochleistungslampe mit starker entladung.
DE4140557A1 (de) Schaltungsanordnung zum betrieb einer oder mehrerer niederdruckentladungslampen
EP0693864B1 (fr) Circuit pour alimenter une ou plusieurs lampes à décharge basse-pression
EP0522266A1 (fr) Ballast protégé contre surtension
DE2751464A1 (de) Starter zum zuenden einer gas- und/oder dampfentladungslampe
EP1033066A1 (fr) Circuit pour actionner au moins une lampe a decharge
EP1223792B1 (fr) Circuit d'amorçage des lampes électriques
DE4005776C2 (de) Schaltungsanordnung zum Starten und zum Betrieb einer Gasentladungslampe
EP1326484B1 (fr) Appareil pour alimenter des lampes à décharge
EP0871347B1 (fr) Ballast à réamorçage automatique
EP1028606B1 (fr) Circuit pour alimenter au moins une lampe à décharge à basse pression
DE3626209A1 (de) Vorschaltgeraet fuer wenigstens eine entladungslampe
DE19734298B4 (de) Zündschaltkreis zum Zünden einer Leuchtstoffröhre mit vorheizbaren Elektroden
WO1997019577A1 (fr) Transformateur electronique
EP0519220A1 (fr) Ballast avec temps de chauffage commandé
DE102004037389C5 (de) Verfahren zur Ansteuerung einer eine Leuchtstofflampe aufweisenden Last zur Optimierung des Zündvorganges
DE4216716C1 (de) Schaltungsanordnung zum Starten einer vorheizbaren Entladungslampe

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

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020805

17Q First examination report despatched

Effective date: 20021031

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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 CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

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

Ref country code: IE

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: 20050216

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: 20050216

Ref country code: FI

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: 20050216

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

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50105361

Country of ref document: DE

Date of ref document: 20050324

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050406

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: 20050516

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: 20050516

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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

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: 20050527

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

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: 20050804

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20051210

Ref country code: AT

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

Effective date: 20051210

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

ET Fr: translation filed
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 NON-PAYMENT OF DUE FEES

Effective date: 20051231

Ref country code: LU

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

Effective date: 20051231

26N No opposition filed

Effective date: 20051117

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: SIEMENS SCHWEIZ AG;INTELLECTUAL PROPERTY FREILAGERSTRASSE 40;8047 ZUERICH (CH)

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

Ref country code: SE

Payment date: 20101207

Year of fee payment: 10

Ref country code: NL

Payment date: 20101203

Year of fee payment: 10

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

Ref country code: IT

Payment date: 20101229

Year of fee payment: 10

Ref country code: CH

Payment date: 20110308

Year of fee payment: 10

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50105361

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG, 81543 MUENCHEN, DE

Effective date: 20111128

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20120701

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

Ref country code: SE

Ref legal event code: EUG

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

Ref country code: LI

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

Effective date: 20111231

Ref country code: CH

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

Effective date: 20111231

Ref country code: SE

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

Effective date: 20111211

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

Ref country code: IT

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

Effective date: 20111210

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 NON-PAYMENT OF DUE FEES

Effective date: 20120701

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50105361

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM AG, 81543 MUENCHEN, DE

Effective date: 20130205

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50105361

Country of ref document: DE

Owner name: OSRAM GMBH, DE

Free format text: FORMER OWNER: OSRAM GMBH, 81543 MUENCHEN, DE

Effective date: 20130822

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

Ref country code: DE

Payment date: 20131220

Year of fee payment: 13

Ref country code: GB

Payment date: 20131219

Year of fee payment: 13

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

Ref country code: BE

Payment date: 20131219

Year of fee payment: 13

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

Ref country code: FR

Payment date: 20131220

Year of fee payment: 13

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: 20141231

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50105361

Country of ref document: DE

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

Effective date: 20141210

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20150831

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: 20150701

Ref country code: GB

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

Effective date: 20141210

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: 20141231