EP0707438B1 - Ballast pour au moins une lampe à décharge - Google Patents

Ballast pour au moins une lampe à décharge Download PDF

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Publication number
EP0707438B1
EP0707438B1 EP95116198A EP95116198A EP0707438B1 EP 0707438 B1 EP0707438 B1 EP 0707438B1 EP 95116198 A EP95116198 A EP 95116198A EP 95116198 A EP95116198 A EP 95116198A EP 0707438 B1 EP0707438 B1 EP 0707438B1
Authority
EP
European Patent Office
Prior art keywords
heating
lamp
switch
inverter
circuit
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
EP95116198A
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German (de)
English (en)
Other versions
EP0707438A2 (fr
EP0707438A3 (fr
Inventor
Siegfried Luger
Thomas Marinelli
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.)
Tridonic Bauelemente GmbH
Original Assignee
Tridonic Bauelemente GmbH
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Filing date
Publication date
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Priority claimed from DE19501695A external-priority patent/DE19501695B4/de
Application filed by Tridonic Bauelemente GmbH filed Critical Tridonic Bauelemente GmbH
Publication of EP0707438A2 publication Critical patent/EP0707438A2/fr
Publication of EP0707438A3 publication Critical patent/EP0707438A3/fr
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Publication of EP0707438B1 publication Critical patent/EP0707438B1/fr
Anticipated expiration legal-status Critical
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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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H05B41/3925—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations by frequency variation
    • 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
    • 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
    • H05B41/2981—Arrangements for protecting lamps or circuits against abnormal operating conditions for protecting the circuit against abnormal operating conditions
    • H05B41/2985—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 ballast for at least one gas discharge lamp according to the preamble of claim 1, and a method for operating a Gas discharge lamp with such a ballast.
  • ballasts are usually used for Gas discharge lamps preheated the lamp electrodes before the ignition voltage between them. It has been shown that the measure Lamp life is significantly extended.
  • the gas discharge lamp in the Usually operated on a series resonant circuit the resonant circuit capacitor in generally lies parallel to the discharge path of the gas discharge lamp.
  • the electrodes the lamp are designed as heating coils through which the current of the resonant circuit flows when the lamp is not lit.
  • the frequency is compared to Resonance frequency of the resonance circuit changed so that the above Resonance capacitor and thus no voltage above the gas discharge lamp Ignition of the gas discharge lamp causes. In this way an im flows substantially more constant current through the helixes Lamp electrodes so that they are preheated.
  • the frequency is set close to the resonance frequency of the resonance circuit, whereby the voltage across the resonance capacitor increases so that the Gas discharge lamp ignites.
  • EP 0 589 081 A1 a suitable circuit arrangement described.
  • This points in Resonance circuit on the primary winding of a heating transformer the Secondary windings are connected in parallel to the connections of the heating coils. In this way it is possible to use the heating coils even in ignited mode To supply energy.
  • is parallel to the primary winding Heating transformer provided a controllable switch, which, if necessary, the Bridges the primary winding and thus simultaneously heats the heating coils prevents.
  • a further circuit arrangement is known from WO 93 12631 A, which a Describes electronic ballast according to the preamble of claim 1.
  • a lamp is connected to a coil and a series resonant circuit Capacitor ignited.
  • the series resonance circuit is between a center tap two alternating switches of an inverter are connected. With a The lamp filament is coupled to a switch which can be controlled via a relay and which is in closed condition shorts the lamp electrodes.
  • the lamp contact is closed the relay contact, so that over the coil of the Series resonance circuit as well as the electrode coils and the switch high-frequency heating current flows, which heats the electrodes of the lamp.
  • the electrode coils heat up, it grows their ohmic resistance, so that accordingly the voltage drop to the Electrodes and at the switch rises.
  • Threshold the switch is opened using the relay, causing the heating circuit interrupted and a current flow through the electrode coils is prevented. Since the Capacity of the resonant circuit is no longer bridged by the heating circuit damping the series resonant circuit, and the lamp can be ignited. There even with this arrangement, the series resonance circuit is temporarily dampened also the problems described above.
  • the present invention is therefore based on the object of providing a ballast for at least one gas discharge lamp and a method for operating a To create gas discharge lamp with such a ballast, so that always a reliable, the lamp-sparing operation is guaranteed.
  • the further switch is switched so that the lamp only with Heating current is supplied if these are heated due to their operating state got to. This means that only as much energy as is absolutely necessary for heating the Lamp consumed.
  • the claims 24 relate advantageously to embodiments of the invention Ballast.
  • the gas discharge lamp is operated within the permissible operating range for the heating output guaranteed.
  • FIG. 1 the essential parts of an embodiment are Ballast shown for a gas discharge lamp.
  • This first has one Inverter consisting of the controllable switches S1 and S2, which by means of an inverter control circuit 1 can be driven in push-pull. Thus in Switch one switch on and the other off.
  • the two Inverter switches S1 and S2 are connected in series between a positive one Supply voltage and ground switched.
  • the load circuit is connected.
  • This consists of one Series resonance circuit, which consists of a resonance circuit coil L1 and a Resonant circuit capacitor C3 is composed.
  • the resonant circuit capacitor is C3 with its one terminal connected to ground.
  • connection node between the resonance circuit capacitor C3 and the resonance circuit coil L1 is one Connection of a coupling capacitor C2 connected.
  • the other connection of the Coupling capacitor C2 is with one of two cathodes, a gas discharge lamp LA connected.
  • the two cathodes of the gas discharge lamp LA each have two Connections, between each of which a heating coil for heating the respective cathode is provided.
  • the not connected to the coupling capacitor C2 Electrode of the gas discharge lamp LA has a connection K3 to ground connected.
  • a heating transformer T is also provided, which has two windings on the primary side T1 and T3 and two secondary windings T2 and T4.
  • the one primary winding T1 is with its one connection to the connection node of the two inverter switches S1 and S2 connected and with their second Connection connected to the second primary winding T3.
  • This is again connected to a connection of a further controllable switch S3.
  • the second Connection of the further controllable switch S3 is in turn with a resistor R1 connected, which on the other hand is connected to ground. This results in a Series connection from the two primary-side windings of the heating transformer, the further controllable switch S3 and resistor R1, which are parallel to Inverter switch S2 are switched.
  • the further controllable switch S3 is in turn assigned to it by one Switching control 2 operated.
  • the two secondary windings T2 and T4 of the heating transformer T are over Series connections with respective diodes D3 and D4 each with one of the two Electrodes of the gas discharge lamp LA connected.
  • the winding T2 is over the Diode D3 with the heating coil connections K3 and K4 of one electrode and Winding T4 via the diode D4 with the heating coil connections K1 and K2 second electrode connected.
  • the cathode is connected to the positive supply voltage.
  • a diode D2 switched, the anode connection to ground connected is. This diode can be omitted when using FET transistors, if the transistors used have already integrated a diode circuit.
  • control signals for the inverter switch S1 are shown in curve I, which periodically switch between levels L and H.
  • the period length is PO, the signal being at level H for the duration tO.
  • the inverter switch S1 is closed as long as it is at level H is controlled.
  • the second inverter switch S2 switches, as before already explained, alternating with switch S1.
  • the resonance circuit is dimmed, i.e. the stronger the period PO deviates from the resonance frequency of the series resonance circuit, the stronger the Lamp dimmed, i.e. the darker it is.
  • Such an operation alone would have, like previously mentioned, with the result that the lamp would age to an increased extent.
  • control circuit 2 of the further controlled switch S3 to couple a coupling 3 to the inverter control circuit 1.
  • Curves I and II are identical, so that switches S1 and S3 are in common mode switch and are switched on or off at the same time. It follows that then when the switch S1 is turned on, a primary-side current at the same time through the windings T1 and T3 of the heating transformer T over the closed further controllable switch S3 and the resistor R1 from the positive Supply voltage connection flows to ground. Since it is according to curve II in FIG. 3 an interrupted current, i.e. no direct current, is acting according to the Laws of magnetic induction on the secondary side of the Heating transformer, i.e.
  • the inverter can be dimmed the gas discharge lamp LA.
  • the heating power of the Adapt electrode heating can be done according to curves II to VII in FIG. 2 in that not every time the inverter switch S1 is switched on further controlled switch S3 is also turned on. Rather, longer ones Clock periods P1 to P5 can be provided, for example, the period lengths P1 to P5 are an integer multiple of the cycle period of the inverter switch S1.
  • heating output to set is to switch the switching time in which the switch S3 is turned on change. While in curves II to VII the switch S3 is just as long is switched on like switch S1, and only the time during which switch S3 is switched off, is varied, switch S3 is significantly shorter according to curve VIII switched on. At the same time, this reduces the achievable heating current through the Heating coil.
  • curves 1 and 3 are the maximum and Minimum heating current in recommended by the manufacturer of a gas discharge lamp Dependence on the degree of dimming is shown. With curve 2 is the one with the previous one circuit and control method achievable heating current shown. From figure 4 it is thus clear that a heating current for the gas discharge lamp is easily adjustable, which is just above the minimum required heating current.
  • FIG. 5 shows a representation which shows the adjustable heating current as a function on the number of switch-on pulses omitted with respect to switch S1, i.e. which represents a correspondingly extended period. If the number of omitted switch-on pulses is 0 - as in II of Figure 2 - is a maximum Heating current achievable. This value can be reduced almost continuously.
  • FIG. 3 a circuit variant of the heating transformer T is shown. Here are not two windings connected in series on the primary side but one over a core wound winding T1 'is provided which is the secondary windings Operate T2 and T4.
  • the circuit arrangements described above are initially one pure control, in which the dependency between the switching frequency PO of the Inverter and the switching frequency of the further controllable switch S3 is specified. Nevertheless, regulation is of course also conceivable.
  • the lamp current is measured in a manner known per se and the Control circuits 1 and 2 supplied (not shown).
  • Heating current proportional voltage across resistor R1 can be measured and the value of the heating current via a heating current detector 4 as the signal Inverter control circuits are supplied. In this way the heating current directly adjustable depending on the lamp current by means of control.
  • This arrangement also has the advantage that it can also be detected when a There is a broken coil, i.e. the lamp is defective and if the lamp is out of Arrangement was removed.
  • a reinstallation of the lamp LA is detected, so that the Inverter can be operated so that the lamp LA automatically after insertion ignites.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamp (AREA)

Claims (16)

  1. Ballast pour au moins une lampe à décharge, avec un onduleur qui comprend deux commutateurs (S1, S2) montés en série, reliés à une source de tension continue et branchés en opposition, avec un circuit de charge relié à l'onduleur, qui contient un circuit résonant série (L1, C1) et la lampe à décharge (LA), avec un circuit de chauffage (T, S3, R1) également relié à l'onduleur pour alimenter en courant des filaments de lampe de la lampe à décharge (LA), le circuit de chauffage étant branché en parallèle avec l'un des deux commutateurs de l'onduleur et contenant un commutateur commandable (S3) supplémentaire pour commander le courant de chauffage, caractérisé par le fait que le circuit de chauffage comporte un transformateur de chauffage (T) qui, côté primaire, est branché en parallèle avec l'un des commutateurs (S1, S2) de l'onduleur et, côté secondaire, est relié aux filaments de lampe de la lampe à décharge (LA).
  2. Ballast selon la revendication 1, caractérisé par le fait que le commutateur commandable (S3) supplémentaire est branché de telle sorte que la lampe (LA) soit alimentée en courant de chauffage seulement lorsque le commutateur d'onduleur (S2), avec lequel le circuit de charge est branché en parallèle, est ouvert.
  3. Ballast selon la revendication 1 ou 2, le circuit de charge étant connecté en parallèle avec un des commutateurs de l'onduleur, caractérisé par le fait que le circuit de chauffage (T, S3, R1) est connecté en parallèle avec le commutateur d'onduleur, avec lequel le circuit de charge (L1, C1, LA) est également connecté en parallèle.
  4. Ballast selon la revendication 1 ou 2, caractérisé par le fait que le circuit de chauffage (T, S3, R1) est connecté en parallèle avec le commutateur (S1) qui est branché en série avec le commutateur (S2) de l'onduleur, avec lequel le circuit de charge (L1, C1, LA) est branché en parallèle.
  5. Ballast selon une des revendications 1 à 4, caractérisé par le fait que la période de commutation du commutateur commandable (S3) supplémentaire peut être modifiée d'un multiple entier de la période de cycle de l'onduleur.
  6. Ballast selon une des revendications 1 à 5, caractérisé par le fait que l'intervalle de temps pendant lequel le commutateur commandable (S3) supplémentaire alimente le dispositif de chauffage en courant de chauffage est plus court que l'intervalle de temps pendant lequel le commutateur d'onduleur (S2), avec lequel le circuit de charge est connecté en parallèle, est ouvert.
  7. Ballast selon la revendication 6, caractérisé par le fait que l'intervalle de temps pendant lequel le commutateur commandable (S3) supplémentaire alimente le circuit de chauffage en courant de chauffage est réglable.
  8. Ballast selon la revendication 7, caractérisé par le fait que le réglage de l'intervalle de temps et/ou de la période de commutation a lieu en fonction du courant dans le circuit de charge (L1, C1, LA).
  9. Ballast selon une des revendications 1 à 8, caractérisé par le fait que le transformateur de chauffage (T) comporte un enroulement secondaire (T2, T4) propre pour chaque filament de lampe et présente côté primaire un enroulement (Tl') commun ou des enroulements (T1, T3) correspondant aux enroulements secondaires (T2, T4), qui sont reliés les uns aux autres en un montage série.
  10. Ballast selon une des revendications 1 à 9, caractérisé par le fait que le commutateur commandable (S3) supplémentaire est relié en série au côté primaire du transformateur de chauffage (T).
  11. Ballast selon une des revendications 1 à 10, caractérisé par le fait qu'une impédance, de préférence une résistance ohmique, est connectée en série avec le commutateur commandable (S3) supplémentaire, la chute de tension dans cette impédance étant utilisée comme signal de détection pour la circulation d'un courant de chauffage et ainsi pour une rupture de filament, ou l'absence de lampe ou une défectuosité de la lampe (LA).
  12. Ballast selon la revendication 11, caractérisé par le fait que la chute de tension dans cette impédance est utilisée comme signal de détection pour le remplacement d'une lampe.
  13. Ballast selon une des revendications 1 à 12, caractérisé par le fait qu'il est prévu un agencement de circuit pour démagnétiser le transformateur de chauffage (T), qui démagnétise ledit transformateur de chauffage (T) lorsque celui n'envoie aucun courant de chauffage dans les filaments de lampe.
  14. Procédé d'exploitation d'un ballast selon une des revendications précédentes, caractérisé par le fait qu'après l'allumage de la lampe, on coupe jusqu'à nouvel ordre le chauffage à l'aide du commutateur commandable supplémentaire.
  15. Procédé d'exploitation d'une lampe à décharge pourvue d'un ballast selon une des revendications 1 à 13, selon lequel, pour le préchauffage des électrodes de lampe, on fait fonctionner les commutateurs (S1, S2) à la fréquence de cycle maximale et selon lequel pour allumer la lampe à décharge (LA) on abaisse la fréquence de cycle jusqu'au voisinage de la fréquence de résonance du circuit résonant série (L1, C3), caractérisé par le fait que pendant le préchauffage on fait fonctionner le commutateur commandable (S3) supplémentaire avec une fréquence de cycle permettant le chauffage à la puissance de chauffage maximale admissible.
  16. Procédé selon la revendication 15, caractérisé par le fait qu'après allumage de la lampe à décharge (LA), on règle la fréquence de cycle du commutateur commandable (S3) supplémentaire en fonction d'un état réglé d'éclairage de la lampe à décharge (LA), de telle sorte que la puissance de chauffage se situe entre la puissance de chauffage maximale admissible pour la lampe à décharge (LA) et la puissance minimale nécessaire.
EP95116198A 1994-10-13 1995-10-13 Ballast pour au moins une lampe à décharge Expired - Lifetime EP0707438B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4436705 1994-10-13
DE4436705 1994-10-13
DE19501695 1995-01-20
DE19501695A DE19501695B4 (de) 1994-10-13 1995-01-20 Vorschaltgerät für mindestens eine Gasentladungslampe mit vorheizbaren Lampenwendeln

Publications (3)

Publication Number Publication Date
EP0707438A2 EP0707438A2 (fr) 1996-04-17
EP0707438A3 EP0707438A3 (fr) 1997-07-30
EP0707438B1 true EP0707438B1 (fr) 1999-09-29

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ID=25941035

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116198A Expired - Lifetime EP0707438B1 (fr) 1994-10-13 1995-10-13 Ballast pour au moins une lampe à décharge

Country Status (5)

Country Link
US (1) US5656891A (fr)
EP (1) EP0707438B1 (fr)
AT (1) ATE185231T1 (fr)
ES (1) ES2138129T3 (fr)
FI (1) FI113148B (fr)

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DE102007011646A1 (de) 2007-03-09 2008-09-11 Tridonicatco Gmbh & Co. Kg Extern konfigurierbar integrierbare Steuerschaltung für Betriebsgeräte für Leuchtmittel
DE102007027179A1 (de) 2007-06-13 2008-12-18 Tridonicatco Gmbh & Co. Kg Steuerschaltung für Leuchtmittel-Betriebsgeräte
DE102011089113A1 (de) 2010-12-22 2012-06-28 Tridonic Gmbh & Co. Kg Verfahren und Betriebsgerät zum Betreiben einer Gasentladungslampe mit Heizwendel
CN103959916A (zh) * 2011-09-02 2014-07-30 荷兰睿保乐Nedap公司 气体放电灯的功率电路
EP1872630B2 (fr) † 2005-04-22 2018-04-11 Tridonic GmbH & Co KG Chauffage intelligent par convertisseur a transfert indirect

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US7728528B2 (en) * 2004-11-29 2010-06-01 Century Concept Ltd Electronic ballast with preheating and dimming control
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DE102005018795A1 (de) * 2005-04-22 2006-10-26 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Elektronisches Vorschaltgerät mit Blindstromschwingungsreduzierung
DE102005047985A1 (de) * 2005-10-06 2007-04-12 Tridonicatco Gmbh & Co. Kg Dynamische Wendelheizung
US7586268B2 (en) * 2005-12-09 2009-09-08 Lutron Electronics Co., Inc. Apparatus and method for controlling the filament voltage in an electronic dimming ballast
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RU2446641C2 (ru) * 2008-01-23 2012-03-27 Мидас Вэй Трейдинг Ко., Лтд. Пьезоэлектрический резонансный контур зажигания лампы
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DE102009019625B4 (de) * 2009-04-30 2014-05-15 Osram Gmbh Verfahren zum Ermitteln eines Typs einer Gasentladungslampe und elektronisches Vorschaltgerät zum Betreiben von mindestens zwei unterschiedlichen Typen von Gasentladungslampen
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US9084304B2 (en) * 2012-09-17 2015-07-14 Osram Sylvania Inc. Fault condition of detection circuit
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DE3901111A1 (de) * 1989-01-16 1990-07-19 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb von entladungslampen
DE4005850A1 (de) * 1990-02-23 1991-08-29 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer entladungslampe
US5130605A (en) * 1990-03-07 1992-07-14 Hitachi, Ltd. Lighting device for fluorescent lamp
DE4039161C2 (de) * 1990-12-07 2001-05-31 Zumtobel Ag Dornbirn System zur Steuerung der Helligkeit und des Betriebsverhaltens von Leuchtstofflampen
DE4140557A1 (de) * 1991-12-09 1993-06-17 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Schaltungsanordnung zum betrieb einer oder mehrerer niederdruckentladungslampen
DE4219958C1 (en) * 1992-06-18 1993-06-24 Trilux-Lenze Gmbh + Co Kg, 5760 Arnsberg, De Ballast circuit for discharge lamp - uses phase gate control to short out electrodes for interval in each half cycle, depending on brightness
EP0589081B1 (fr) * 1992-09-24 1997-01-15 Knobel Ag Lichttechnische Komponenten Circuit pour alimenter une lampe fluorescente avec mesure du courant passant par la lampe
EP0594880B1 (fr) * 1992-10-28 1998-01-28 Knobel Ag Lichttechnische Komponenten Procédé et circuit d'amorçage de lampes fluorescentes lorsque les électrodes de préchauffage ont atteint une température donnée
DE19520999A1 (de) * 1995-06-08 1996-12-12 Siemens Ag Schaltungsanordnung zur Wendelvorheizung von Leuchtstofflampen
DE29514817U1 (de) * 1995-09-15 1995-11-16 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH, 81543 München Schaltungsanordnung zum Betrieb mindestens einer Niederdruckentladungslampe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1872630B2 (fr) † 2005-04-22 2018-04-11 Tridonic GmbH & Co KG Chauffage intelligent par convertisseur a transfert indirect
DE102007011646A1 (de) 2007-03-09 2008-09-11 Tridonicatco Gmbh & Co. Kg Extern konfigurierbar integrierbare Steuerschaltung für Betriebsgeräte für Leuchtmittel
DE102007027179A1 (de) 2007-06-13 2008-12-18 Tridonicatco Gmbh & Co. Kg Steuerschaltung für Leuchtmittel-Betriebsgeräte
DE102011089113A1 (de) 2010-12-22 2012-06-28 Tridonic Gmbh & Co. Kg Verfahren und Betriebsgerät zum Betreiben einer Gasentladungslampe mit Heizwendel
CN103959916A (zh) * 2011-09-02 2014-07-30 荷兰睿保乐Nedap公司 气体放电灯的功率电路
CN103959916B (zh) * 2011-09-02 2017-06-09 荷兰睿保乐Nedap公司 气体放电灯的功率电路

Also Published As

Publication number Publication date
EP0707438A2 (fr) 1996-04-17
FI113148B (fi) 2004-02-27
FI954815L (fi) 1996-04-14
ES2138129T3 (es) 2000-01-01
EP0707438A3 (fr) 1997-07-30
FI954815A0 (fi) 1995-10-10
ATE185231T1 (de) 1999-10-15
US5656891A (en) 1997-08-12

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