EP1869952A1 - Dispositif d'allumage d'electrode auxiliaire d'allumage a eclateur - Google Patents

Dispositif d'allumage d'electrode auxiliaire d'allumage a eclateur

Info

Publication number
EP1869952A1
EP1869952A1 EP06722789A EP06722789A EP1869952A1 EP 1869952 A1 EP1869952 A1 EP 1869952A1 EP 06722789 A EP06722789 A EP 06722789A EP 06722789 A EP06722789 A EP 06722789A EP 1869952 A1 EP1869952 A1 EP 1869952A1
Authority
EP
European Patent Office
Prior art keywords
voltage
pressure discharge
discharge lamp
ignition
lamp
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.)
Withdrawn
Application number
EP06722789A
Other languages
German (de)
English (en)
Inventor
Bernhard Siessegger
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
Priority claimed from DE200510023798 external-priority patent/DE102005023798A1/de
Application filed by Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to EP06722789A priority Critical patent/EP1869952A1/fr
Publication of EP1869952A1 publication Critical patent/EP1869952A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H05B41/288—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 without preheating electrodes, e.g. for high-intensity discharge lamps, high-pressure mercury or sodium lamps or low-pressure sodium lamps
    • H05B41/2881—Load circuits; Control thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

Definitions

  • the invention relates to a device for operating or igniting a high-pressure discharge lamp according to the preamble of patent claim 1, a lamp base and a lighting system with such a device and a method for operating a high-pressure discharge lamp.
  • a pulse ignition device for a high-pressure discharge lamp provided with a starting aid electrode, in particular for a high-pressure headlamp high-pressure discharge lamp.
  • This pulse ignition device has as essential components a spark gap, a starting capacitor and an ignition transformer. To ignite the gas discharge in the high-pressure discharge lamp of the ignition capacitor is charged to discharge upon reaching the breakdown voltage of the spark gap on this and the primary winding of the ignition transformer, so that high voltage pulses are induced in the secondary winding of the ignition transformer, which coupled via the auxiliary ignition electrode in the high pressure discharge lamp and cause ignition of the gas discharge in the high pressure discharge lamp.
  • the high-pressure discharge lamp After the ignition of the gas discharge, the high-pressure discharge lamp is operated with a high-frequency current of alternating polarity whose frequency is in the megahertz range.
  • the ignition circuit described above is arranged galvanically isolated from the operating circuit of the high pressure discharge lamp.
  • the operating circuit and the ignition circuit are both powered by the same push-pull inverter.
  • a transformer with two secondary windings For galvanic isolation between the ignition circuit and the operating circuit and for coupling to the inverter is a transformer with two secondary windings, one of which is arranged in the ignition circuit and in the operating circuit.
  • the device according to the invention for operating or igniting a high-pressure discharge lamp provided with an auxiliary starting electrode has a voltage-dependent switching means for applying the starting auxiliary electrode to the ignition voltage for the high-pressure discharge lamp, the switching threshold voltage of the voltage-dependent switching means being greater than or equal to the ignition voltage required to ignite the gas discharge in the high-pressure discharge lamp ,
  • the ignition voltage is to be understood as meaning the necessary voltage between the auxiliary starting electrode and the associated main electrode, which is required to ignite the gas discharge in the high-pressure discharge lamp.
  • controllable semiconductor switch for deactivating the ignition device after ignition of the gas discharge in the high-pressure discharge lamp and the transformer for electrical isolation of the ignition circuit and operating circuit can be saved.
  • the device according to the invention therefore has a simpler structure than the device according to the prior art.
  • the voltage-dependent switching means preferably comprises at least one spark gap.
  • the switching threshold voltage that is, the breakdown voltage
  • the spark gap can be adjusted by changing the distance of its electrodes or the pressure of the filling gas used to the desired value or to a value greater than or equal to the ignition voltage of the high-pressure discharge lamp.
  • a spark gap it is also possible to use a plurality of spark gaps connected in series or an externally triggerable spark gap with an additional ignition electrode.
  • spark gaps but other voltage-dependent switching means, such as thyristors or voltage-dependent resistors or a combination of the aforementioned components can be used.
  • a charge storage means which can be charged to the switching threshold voltage is provided in order to provide the energy for the breakdown of the voltage-dependent switching means.
  • the aforementioned charge storage means is preferably one or more capacitors designed for high voltages.
  • the charge storage means is preferably charged to the switching threshold voltage of the voltage dependent switching means by means of a resonant circuit or a voltage multiplier circuit or a piezotransformer or a combination thereof.
  • a resonant circuit which is operated during the ignition phase close to its resonance, or by means of a voltage multiplier circuit, the required high voltages of several kilovolts can be generated in a relatively simple manner.
  • the voltage multiplier circuit may be powered by, for example, a transformer connected to the lamp circuit or a resonant circuit.
  • a voltage converter is provided in order to ensure the voltage supply of the voltage-dependent switching means during the ignition phase of the high-pressure discharge lamp from the mains voltage, for example from the 230 volt low-voltage AC mains, or from the vehicle electrical system voltage of a motor vehicle and to ensure the supply of the high-pressure discharge lamp with a current of alternating polarity.
  • the voltage converter can different operating modes can be realized to meet the different requirements of the high pressure discharge lamp during its ignition phase and during lamp operation after completion of the ignition phase.
  • a first supply voltage for the voltage-dependent switching means is generated by means of the voltage converter during the ignition phase of the high-pressure discharge lamp and generates a second supply voltage for generating a lamp current with alternating polarity after ignition of the gas discharge in the high pressure discharge lamp.
  • the voltage converter is therefore preferably designed as an inverter or AC voltage converter, which is operable with different clock or switching frequencies.
  • the inverter is preferably operated with switching frequencies from different frequency ranges. This can be ensured in a simple manner that after the ignition of the gas discharge in the high-pressure discharge lamp to the voltage-dependent switching means only a lower voltage than its switching threshold voltage is applied and thus no further ignition voltage pulses are generated.
  • the device according to the invention comprises only a few components and can therefore be accommodated in the lamp base of a high-pressure discharge lamp. Therefore, the device according to the invention can be used particularly advantageously in metal halide high-pressure discharge lamps for motor vehicle headlights provided with an auxiliary starting electrode, in particular also in mercury-free metal halide high-pressure discharge lamps for motor vehicle headlights.
  • Figure 1 is a circuit diagram of the device according to the first Alis enclosuresbeispiel the invention
  • Figure 2 is a circuit diagram of the device according to the second exemplary embodiment of the invention
  • Figure 3 is a circuit diagram of the device according to the third exemplary embodiment of the invention.
  • Figure 4 is a circuit diagram of the device according to the fourth embodiment of the invention.
  • FIG. 5 shows a side view of the high-pressure discharge lamp operated by the devices according to the invention in a schematic representation
  • Figure 6 is a circuit diagram of the device according to the fifth embodiment of the invention.
  • the device for operating the vehicle headlight high-pressure discharge lamp 18 provided with an auxiliary starting electrode 181 comprises a voltage converter 10 which generates a high-frequency alternating voltage from the vehicle electrical system voltage of the motor vehicle.
  • the auxiliary ignition electrode 181 of the high-pressure discharge lamp 18 arranged outside the discharge vessel of the high-pressure discharge lamp is capacitively coupled to one of the gas discharge electrodes of the high-pressure discharge lamp 18 arranged inside the discharge vessel.
  • the device comprises an autotransformer 1 1 having a primary I 1 a and a secondary winding section 1 1 b, a capacitor 12 connected in parallel with the discharge path of the Plochtikentladungslampe 18, a rectifier diode 13, resistors 14, 17, a capacitor 15 and a spark gap 16.
  • the diode 13 is rated for voltages up to 30 IcV, such as a BY724 diode.
  • the capacitor 15 has a capacity of 100 pF and is designed for a voltage of up to 15 kV.
  • the dashed line in Figure 1 resistor 17 is optional and may be omitted.
  • the spark gap 16 has a resistance of 20 megohms, and is particularly useful in the case of a spark gap with low insulation resistance because it prevents charging of the resulting capacity of the ignition electrode and the main electrode.
  • By- Breaking voltage of the spark gap 16 is 12 kV.
  • the ignition voltage required to ignite the gas discharge in the high-pressure discharge lamp 18 is typically 5 kilovolts to 10 kilovolts at an open circuit voltage of 2 kilovolts, measured from peak to peak.
  • the resistor 14 limits the current through diode 13, in particular in the case of a discharged capacitor 15, and has a resistance of 47 kilohms chosen.
  • the voltage converter 10 In order to ignite the gas discharge in the high-pressure discharge rail 18, the voltage converter 10 is operated at a switching frequency which is close to the resonance frequency of the series resonant circuit consisting of the components 11a and 12b. In the secondary winding section Ib of the autotransformer 11, a high voltage is thereby induced, which is sufficient to charge the capacitor 15 via the rectifier diode 13 and the resistor 14 to the breakdown voltage of the spark gap 16. If the voltage across the capacitor 15 reaches the breakdown voltage of the spark gap 16, it discharges via the spark gap 16 and the auxiliary ignition electrode 181 is subjected to high-voltage inipulses, which lead to the ignition of the gas discharge in the high-pressure discharge manifold 18.
  • the switching frequency of the voltage converter 10 is adjusted by means of its drive device. selects that the high-pressure discharge lamp 18 in the case of a mercury-containing metal halide high-pressure discharge lamp with a burning voltage of about 85 volts and in the case of a mercury-free metal halide high-pressure discharge lamp with a burning voltage of about 40 volts is operated.
  • the high-pressure discharge lamp 18 is supplied with an alternating current whose frequency is above 100 kHz.
  • the capacitor 15 is charged after completion of the ignition phase to a voltage which is below the breakdown voltage of the spark gap 16.
  • FIG. 2 shows the circuit diagram of the second exemplary embodiment of the device according to the invention.
  • the device for operating the vehicle headlight high-pressure discharge lamp 28 provided with an ignition auxiliary electrode 281 comprises a voltage converter 20, which generates a high-frequency alternating voltage from the vehicle electrical system voltage of the motor vehicle.
  • the auxiliary auxiliary electrode 281 of the high-pressure discharge lamp 28 arranged outside the discharge vessel of the high-pressure discharge lamp is capacitively coupled to one of the gas discharge electrodes of the high-pressure discharge lamp 28 arranged inside the discharge vessel.
  • the device comprises a transformer 21 having a primary 21a and a secondary winding 21b, a capacitor 22 connected in parallel with the discharge path of the high pressure discharge lamp 28, a spark gap 26 and resistors 24, 27, and a balanced voltage doubler circuit connected to the diodes 231, 232 and the capacitors 251, 252 is formed.
  • the dashed lines shown in Figure 2 resistors 24, 27 are optional.
  • the voltage converter 20 is operated at a switching frequency which is close to the resonance frequency of the series resonant circuit consisting of the components 21a and 22b.
  • a high voltage is thereby induced, which is increased by the aforementioned voltage doubling circuit by a factor of two, so that the capacitors 251, 252 are charged to the breakdown voltage of the spark gap 26. If the voltage across the capacitors 251, 252 reaches the breakdown voltage of the spark gap 26, they discharge Via the spark gap 26 and the auxiliary ignition electrode 281 is applied with high voltage pulses, which lead to the ignition of the gas discharge in the high pressure discharge lamp 28.
  • the resonance capacitor 22 is bridged by the conductive discharge path of the high-pressure discharge lamp and the series resonant circuit is damped so that a sufficiently high voltage is not induced in the secondary winding 21b in order to reduce the capacitors 251, 252 to the breakdown voltage Spark gap 26 to charge.
  • the ignition device is thus deactivated automatically after ignition of the gas discharge.
  • the spark gap 26 thereby ensures after the ignition of the gas discharge for a galvanic separation of the auxiliary ignition electrode 281 of the device.
  • the switching frequency of the voltage converter 20 is selected by means of its Allêtungsvoriques so that the high-pressure discharge lamp 28 in the case of a mercury-containing halogen-metal halide high-pressure discharge lamp with a ßrennprehensi of about 85 volts and in the case of a mercury-free metal halide High-pressure discharge lamp with a burning voltage of about 40 volts is operated.
  • the high-pressure discharge lamp 28 is fed with a nearly rectangular alternating current of a frequency of 400 hertz.
  • the capacitors 251, 252 are charged after completion of the ignition phase to a voltage which is below the breakdown voltage of the spark gap 26.
  • FIG. 3 shows the circuit diagram of the third exemplary embodiment of the device according to the invention.
  • the device for operating the ignition assisting electrode 381 provided vehicle headlight high-pressure discharge lamp 38 summarizes a voltage converter 30 which generates a high-frequency alternating voltage from the vehicle electrical system voltage of the motor vehicle.
  • the auxiliary starting electrode 381 of the high-pressure discharge lamp 38 arranged outside the discharge vessel of the high-pressure discharge lamp is capacitively coupled to one of the gas discharge electrodes of the high-pressure discharge lamp 38 arranged inside the discharge vessel.
  • the device comprises an autotransformer 31 having a primary 31a and a secondary winding section 31b, a capacitor 32 connected in parallel with the discharge path of the high-pressure discharge lamp 38, a spark gap 36 and a resistor 37, and a single-ended voltage doubling circuit which is provided by the diodes 331, 332 and Capacitors 351, 352 is formed.
  • the dashed lines in Figure 3 resistance 27 is optional.
  • the diodes 331, 332 are each designed for a voltage of 25 kV, the breakdown voltage of the spark gap 36 is 22 kV.
  • the device shown in Figure 3 according to the third embodiment works completely analogous to the device shown in Figure 2 according to the second embodiment of the invention.
  • a multistage cascade which is also referred to as Cockroft-Walton circuit, can be used.
  • FIG. 4 shows the circuit diagram of the fourth exemplary embodiment of the device according to the invention.
  • the device for operating the vehicle headlight high-pressure discharge lamp 48 provided with an auxiliary starting electrode 481 comprises a voltage converter 40, which generates a high-frequency alternating voltage from the vehicle electrical system voltage of the motor vehicle.
  • the auxiliary starting electrode 481 of the high-pressure discharge lamp 48 which is arranged outside the discharge vessel of the high-pressure discharge lamp, is capacitively coupled to one of the gas discharge electrodes of the high-pressure discharge lamp 48 arranged inside the discharge vessel.
  • the device comprises a transformer with a parallel to the discharge path of the high pressure discharge lamp 48 connected primary winding 41a and a secondary winding 41b, a rectifier diode 43, resistors 44, 47, a capacitor 45 and a spark gap 46.
  • the dashed lines in Figure 4 illustrated resistor 47 is optional. If the transformer is supplied with sufficient If the coupling between the primary winding and the secondary winding fails, the resistor 44 can be dispensed with, analogously to the resistor 24 according to the embodiment shown in FIG.
  • a sufficiently high voltage is induced in the secondary winding 41b of the transformer in order to charge the capacitor 45 via the rectifier diode 43 and the resistor 44 to the breakdown voltage of the spark gap 46. If the voltage across the capacitor 45 reaches the breakdown voltage of the spark gap 46, it discharges via the spark gap 46 and the auxiliary starting electrode 481 is subjected to high-voltage pulses which cause ignition of the gas discharge in the high-pressure discharge lamp 48.
  • the switching frequency of the voltage converter 40 is selected by means of its drive device so that the high-pressure discharge lamp 48 in the case of a mercury-containing halogen-metal halide high-pressure discharge lamp with a burning voltage of about 85 volts and in the case of a mercury-free halogen -Metalldampf-Hochdruckent- charge lamp with a burning voltage of about 40 volts is operated.
  • the high-pressure discharge lamp 48 is supplied with an alternating current whose frequency is above 100 kHz.
  • the capacitor 45 is charged after completion of the ignition phase only to a voltage which is below the breakdown voltage of the spark gap 46.
  • the high-pressure discharge lamp 18, 28, 38, 48 shown schematically in FIG. 5 is a metal halide high-pressure discharge lamp for a motor vehicle headlight.
  • This high-pressure discharge lamp La has a discharge vessel 1 made of quartz glass, in which an ionizable filling is enclosed gas-tight.
  • the ionizable filling contains xenon and metal halide compounds, preferably iodides of the metals sodium, scandium, zinc and indium and the ionizable filling contains preferably no mercury.
  • the xenon cold filling pressure is approx. 10 bar.
  • the two ends 1a, 1b of the discharge vessel 1 are each sealed by means of a molybdenum foil sealing 2a, 2b.
  • In the interior of the discharge vessel 1 are two electrodes El, E2, between which forms during the lamp operation responsible for the light emission discharge arc.
  • main electrodes El, E2 are in each case electrically conductively connected via one of the molybdenum foil melts 2a, 2b to a current lead 3a, 3b leading out of the discharge vessel 1.
  • the discharge vessel 1 is enveloped by a glass outer bulb 5.
  • the auxiliary starting electrode ZE which is designated in FIGS. 1 to 4 by the reference numbers 181, 281, 381, 481, is here formed by a thin metallic coating on the inner surface of the outer bulb 5. Alternatively, this coating can also be mounted on the outside of the discharge vessel 1.
  • the thin metallic coating ZE has the shape of an elongate strip which extends from the socket-near end of the outer bulb 5 approximately to the level of the discharge vessel center point.
  • the lamp vessels 1, 5 are fixed in the plastic upper part 411 of a lamp cap 4.
  • the cuboid part of the lamp base 4 is surrounded by a two-part metallic housing 41, 42, which serves for the electromagnetic shielding of the accommodated in the interior of the lamp cap 4 ignition or operating device of the high pressure discharge lamp.
  • the electrical connection 40 of the high-pressure discharge lamp La serves to supply voltage to the high-pressure discharge lamp and the ignition or operating device arranged in the lamp base 4, which is designed in accordance with one of the preferred exemplary embodiments illustrated in FIGS.
  • FIG 6 the circuit diagram of the fifth embodiment of the device according to the invention is shown schematically.
  • the device for operating the vehicle headlight high-pressure discharge lamp 58 provided with an auxiliary starting electrode 581 comprises a voltage converter 50 which generates a high-frequency alternating voltage from the vehicle electrical system voltage of the motor vehicle.
  • the auxiliary ignition electrode 581 of the high-pressure discharge lamp 58 arranged outside the discharge vessel of the high-pressure discharge lamp is capacitively connected to one of the inside of the Discharge vessel arranged gas discharge electrodes of the high pressure discharge lamp 58 coupled.
  • the device comprises a piezotransformer 59, the input of which is fed by the voltage converter 50 and at whose output a voltage doubler circuit consisting of the diodes 53a and 53b feeds, a resonant or lamp inductor 51 connected in series with the voltage converter 50 and the discharge path of the high-pressure discharge lamp and a parallel one to the discharge path of the high pressure discharge lamp 58 connected resonant capacitor 52, a resistor 54, a capacitor 55, a spark gap 56 and an optional resistor 57th
  • the diodes 53a and 53b are designed for voltages up to 25 kV and are for example of the type BY724.
  • the capacitor 15 has a capacity of 220 pF and is designed for a voltage of up to 15 kV.
  • the dashed line in Figure 6 resistor 57 is optional and can be omitted. It has a resistance of 100 megohms.
  • the breakdown voltage of the spark gap is 12 IcV.
  • the ignition voltage required for igniting the gas discharge in the high-pressure discharge lamp 58 is less than 12 kV.
  • the voltage converter 50 is operated at a switching frequency which is close to the resonant frequency of the piezoelectric transformer, thereby producing at its output a high voltage which is rectified and increased again by the voltage doubler circuit at its output. so that this is sufficient to charge the capacitor 55 via the resistor 54 to the breakdown voltage of the spark gap 56. If the voltage across the capacitor 55 reaches the breakdown voltage of the spark gap 56, it discharges via the spark gap 56 and the auxiliary starting electrode 581 is subjected to high-voltage pulses, which lead to the ignition of the gas discharge in the high-pressure discharge lamp 58.
  • the components 51 and 52 of the series resonant circuit are dimensioned such that they are also in resonance near the resonance frequency of the piezoelectric transformer and thus by the excitation of the piezoelectric transformer during the ignition between the two main electrodes of the gas discharge lamp a sufficiently high voltage tion with an amplitude of, for example, 1200 volts, and thus enables the ignition of a discharge between the two main electrodes of the gas discharge lamp by the voltage pulse at the auxiliary ignition electrode 581.
  • the switching frequency of the voltage converter 50 is selected so that the high-pressure discharge lamp 58 in the case of a mercury-containing metal halide high-pressure discharge lamp with a burning voltage of about 85 volts and in the case of a mercury-free metal halide high-pressure discharge lamp a burning voltage of about 40 volts is operated.
  • the high-pressure discharge lamp 58 is supplied with an alternating flow whose frequency is above 100 kHz. As a result of the changed frequency, the piezoelectric transformer no longer generates such a high output voltage, which ultimately results in the capacitor 55 being charged to a voltage below the breakdown voltage of the spark gap 56 after the ignition phase has ended.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Discharge Lamps And Accessories Thereof (AREA)

Abstract

L'invention concerne un dispositif servant à faire fonctionner ou à allumer une lampe à décharge haute pression (18) munie d'une électrode auxiliaire d'allumage (181). Le dispositif selon l'invention comprend un moyen de commutation (16) dépendant de la tension, servant à soumettre l'électrode auxiliaire d'allumage (181) à la tension d'allumage pour la lampe à décharge haute pression (18). La tension de seuil de commutation du moyen de commutation (16) dépendant de la tension est supérieure ou égale à la tension d'allumage de la lampe à décharge haute pression (18).
EP06722789A 2005-04-14 2006-04-12 Dispositif d'allumage d'electrode auxiliaire d'allumage a eclateur Withdrawn EP1869952A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06722789A EP1869952A1 (fr) 2005-04-14 2006-04-12 Dispositif d'allumage d'electrode auxiliaire d'allumage a eclateur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP05008228 2005-04-14
DE200510023798 DE102005023798A1 (de) 2005-05-19 2005-05-19 Vorrichtung zum Betreiben oder Zünden einer Hochdruckentladungslampe, Lampensockel und Beleuchtungssystem mit einer derartigen Vorrichtung sowie Verfahren zum Betreiben einer Hochdruckentladungslampe
PCT/DE2006/000657 WO2006108407A1 (fr) 2005-04-14 2006-04-12 Dispositif d'allumage d'electrode auxiliaire d'allumage a eclateur
EP06722789A EP1869952A1 (fr) 2005-04-14 2006-04-12 Dispositif d'allumage d'electrode auxiliaire d'allumage a eclateur

Publications (1)

Publication Number Publication Date
EP1869952A1 true EP1869952A1 (fr) 2007-12-26

Family

ID=36655090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06722789A Withdrawn EP1869952A1 (fr) 2005-04-14 2006-04-12 Dispositif d'allumage d'electrode auxiliaire d'allumage a eclateur

Country Status (5)

Country Link
US (1) US20090085491A1 (fr)
EP (1) EP1869952A1 (fr)
JP (1) JP2008537289A (fr)
CA (1) CA2604456A1 (fr)
WO (1) WO2006108407A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008064715A1 (fr) 2006-11-28 2008-06-05 Osram Gesellschaft mit beschränkter Haftung Montage électrique et procédé pour allumer une lampe à décharge à haute pression
WO2019204736A1 (fr) * 2018-04-20 2019-10-24 The Texas A & M University System Circuit efficace dans un traitement de décharge électrique pulsée

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GB640156A (en) * 1947-02-28 1950-07-12 British Thomson Houston Co Ltd Improvements in circuit arrangements for operating electric discharge lamps
GB760674A (en) * 1951-10-18 1956-11-07 British Thomson Houston Co Ltd Improvements relating to starting circuits for electric discharge lamps
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US4488091A (en) * 1982-11-12 1984-12-11 Gte Products Corporation High intensity discharge lamp
CA1253913A (fr) * 1984-06-18 1989-05-09 Cornelis A.J. Jacobs Lampe a decharge sous vapeur de sodium haute pression
EP0181666B1 (fr) * 1984-11-06 1990-01-03 Koninklijke Philips Electronics N.V. Lampe à décharge haute-pression
JP3329929B2 (ja) * 1994-02-15 2002-09-30 松下電工株式会社 高圧放電灯点灯装置
DE19610387A1 (de) * 1996-03-16 1997-09-18 Bosch Gmbh Robert Gasentladungslampe, insbesondere für Kraftfahrzeug-Scheinwerfer
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EP0935909A2 (fr) * 1997-09-01 1999-08-18 Koninklijke Philips Electronics N.V. Montage
JP3438129B2 (ja) * 1998-06-25 2003-08-18 株式会社オーク製作所 放電灯点灯装置
EP0967843B1 (fr) * 1998-06-25 2006-04-19 Orc Manufacturing Co., Ltd. Dispositif de commande d'une lampe à décharge
JP2002270386A (ja) * 2001-03-13 2002-09-20 Ushio Inc 光源装置
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Also Published As

Publication number Publication date
JP2008537289A (ja) 2008-09-11
CA2604456A1 (fr) 2006-10-19
US20090085491A1 (en) 2009-04-02
WO2006108407A1 (fr) 2006-10-19

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