EP1741320B1 - Montage et procede pour faire fonctionner des lampes a decharge haute pression - Google Patents

Montage et procede pour faire fonctionner des lampes a decharge haute pression Download PDF

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Publication number
EP1741320B1
EP1741320B1 EP05742608A EP05742608A EP1741320B1 EP 1741320 B1 EP1741320 B1 EP 1741320B1 EP 05742608 A EP05742608 A EP 05742608A EP 05742608 A EP05742608 A EP 05742608A EP 1741320 B1 EP1741320 B1 EP 1741320B1
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EP
European Patent Office
Prior art keywords
circuit
voltage
pressure discharge
discharge lamp
transformer
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.)
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Application number
EP05742608A
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German (de)
English (en)
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EP1741320A1 (fr
Inventor
Günther Hirschmann
Daniel Lerchegger
Bernhard Siessegger
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Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—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
    • 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
    • H05B41/2821—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 by means of a single-switch converter or a parallel push-pull converter in the final stage
    • 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
    • H05B41/2821—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 by means of a single-switch converter or a parallel push-pull converter in the final stage
    • H05B41/2822—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 by means of a single-switch converter or a parallel push-pull converter in the final stage using specially adapted components in the load circuit, e.g. feed-back transformers, piezoelectric transformers; using specially adapted load circuit configurations

Definitions

  • the invention relates to a circuit arrangement for operating high-pressure discharge lamps according to the preamble of patent claim 1 and to a method for operating a high-pressure discharge lamp.
  • Such a circuit arrangement is for example in the article by Michael Gulko and Sam Ben-Yaakov "A MHz Electronic Ballast for Automotive-Type HID Lamps" IEEE Power Electronics Specialists Conference, PESC-97, pp. 39-45, St. Louis, 1997 s.
  • a current-fed push-pull converter is disclosed, which acts on a load circuit, in which a high-pressure discharge lamp is connected, with a high-frequency alternating voltage via a transformer.
  • the secondary winding of the ignition transformer of an ignition device is also connected, which generates the ignition voltage for igniting the gas discharge in the high-pressure discharge lamp.
  • the publication WO 98/18297 describes a push-pull converter, which acts on a transformer, a load circuit and a galvanically separate pulsed ignition device with high-frequency AC voltage.
  • a high-pressure discharge lamp is connected in the load circuit.
  • the pulse ignition device supplies during the ignition phase high voltage pulses to a starting auxiliary electrode of the high pressure discharge lamp.
  • the DE 40 32 292 discloses a gas discharge lamp assembly and a motor vehicle headlamp with such an arrangement and a circuit arrangement for operating such a gas discharge lamp.
  • the FR 2 698 515 A describes a circuit arrangement for igniting and operating a gas discharge lamp for motor vehicle headlights.
  • the DE 199 09 530 A1 discloses a circuit arrangement for operating at least one high-pressure discharge lamp and an operating method.
  • the ignition device for the high-pressure discharge lamp is designed as a cascade circuit.
  • the object of the invention to provide a generic circuit arrangement with an improved power supply for the pulse ignition device. Furthermore, the circuit arrangement according to the invention is intended to ensure high-frequency operation of the high-pressure discharge lamp with alternating voltages in the megahertz range and reliable ignition of the gas discharge in the lamp.
  • the circuit arrangement according to the invention for operating high-pressure discharge lamps has a voltage converter for generating an alternating voltage and a transformer connected thereto or formed as part of the voltage converter whose secondary winding feeds a load circuit which is provided with connections for a high-pressure discharge lamp and for the ignition voltage output of a pulse ignition device, and a series resonant circuit on, which is provided for supplying voltage to the pulse ignition device during the ignition phase of the high-pressure discharge lamp.
  • a resonance-elevated supply voltage generated from the output voltage of the voltage converter is provided at the voltage input of the pulse ignition device during the ignition phase of the high-pressure discharge lamp.
  • an ignition transformer with a lower turn ratio between the secondary and primary windings and a correspondingly reduced inductance can be used for the pulse ignition device in order to provide the required ignition voltage for the high-pressure discharge lamp.
  • the reduced inductance of the ignition transformer has the advantage that after ignition of the gas discharge in the high pressure discharge lamp, a significantly reduced voltage drop occurs at the secondary winding of the ignition transformer through the lamp current and thereby the losses in the transformer at the voltage output of the voltage converter and significantly reduced in the electronic components of the voltage converter.
  • the aforementioned series resonant circuit therefore allows the combination of a voltage converter, which comparatively high operating frequencies is designed well above 100 kilohertz, with a pulse igniter, the ignition transformer is connected directly in the load circuit powered by the voltage converter and not, as in the published patent application WO 98/18297 described, must be arranged galvanically isolated from the load circuit.
  • the topology of the circuit arrangement can be considerably simplified. In particular, can be dispensed with in the high-pressure discharge lamp on a Zündangeselektrode.
  • the invention can be applied particularly advantageously to a single-stage voltage converter, in particular a voltage converter designed as a current-fed push-pull converter or a class E converter, which dispenses with the generation of a DC link voltage.
  • a single-stage voltage converter in particular a voltage converter designed as a current-fed push-pull converter or a class E converter, which dispenses with the generation of a DC link voltage.
  • the circuit topology of these aforementioned single-stage voltage converter is relatively simple and therefore inexpensive.
  • the abovementioned series resonant circuit is connected to the secondary winding of the transformer and, with the high-pressure discharge lamp connected, connected in parallel to the discharge path of the high-pressure discharge lamp.
  • Characterized a higher voltage for the pulse ignition device is generated at the components of the series resonant circuit as in the secondary winding of the transformer when the switching frequency of the voltage converter during the ignition phase of the high pressure discharge lamp is in the vicinity of the resonance frequency of the series resonant circuit.
  • the series resonant circuit is short-circuited by the now conductive discharge path of the high-pressure discharge lamp, thereby deactivating the pulse ignition device.
  • the series resonant circuit is connected in the voltage converter on the primary side of the transformer.
  • the resonance inductance of the series resonant circuit is preferably designed as an autotransformer whose secondary winding can be connected to the voltage input of a pulse ignition device.
  • the deactivation of the pulse ignition device after completion of the ignition phase of the high-pressure discharge lamp can here in a simple manner by a change, preferably an increase, the Switching frequency of the voltage converter are brought about.
  • the switching frequency of the voltage converter is in the vicinity of the resonance frequency of the series resonant circuit.
  • a capacitor is arranged in the load circuit in an advantageous manner, which is connected in series with the pulse ignition device in series with the secondary winding of the ignition transformer and whose capacitance is dimensioned such that it for the ignition pulses generated by the pulse in the ignition device essentially represents a short circuit and causes after the ignition of the gas discharge in the high pressure discharge lamp, a partial compensation of the inductance of the lamp current flowing through the ignition transformer.
  • This capacitor can be advantageously designed as part of the series resonant circuit.
  • the series resonant circuit is formed according to an advantageous embodiment of the invention as part of a pulse ignition device, which, separated from the other components of the operating device of the high pressure discharge lamp, is housed in the lamp base of the high pressure discharge lamp.
  • a pulse ignition device which, separated from the other components of the operating device of the high pressure discharge lamp, is housed in the lamp base of the high pressure discharge lamp.
  • all high-voltage-carrying components are arranged in the lamp cap, so that the interface between the operating device, which contains the voltage transformer with the transformer at its voltage output, and the high-pressure discharge lamp is subjected only to a comparatively low voltage of less than 100 volts. Therefore, this interface does not require high voltage insulation, but only a shielding of the high frequency AC voltage to ensure sufficient electromagnetic compatibility of the operating device and the lamp. For example, this is achieved by means of earthed, metallic housings or shields and coaxial cables whose shielding braid is also earthed in a known manner.
  • the pulse ignition device therefore has, in addition to the usual components, a series resonant circuit which is connected to its voltage input and serves to boost the resonance of the supply voltage provided at the voltage input during the ignition phase.
  • a voltage multiplying cascade circuit may be used in the circuit or pulsed ignition device to provide a higher input voltage than the induction voltage for the pulse firing device generated by the secondary winding of the transformer. It offers, in combination with the voltage converter, similar advantages to the series resonant circuit described above. However, the variant with the series resonant circuit has the advantage over the one with the cascade circuit in that it does not need any switching means for deactivating the pulse ignition device.
  • the voltage multiplying cascade circuit is. advantageously powered either directly from the voltage transformer or from the secondary winding of the transformer at the voltage output of the push-pull converter with energy. If the voltage multiplying cascade circuit is used in combination with the series resonant circuit, then the voltage input of the cascade circuit is connected in parallel with a resonant circuit component and its voltage output is connected to the voltage input of the pulse firing device.
  • a balanced voltage doubler circuit may be used in the circuit or pulse firing device to provide a higher input voltage than the induction pulse for the pulse firing device generated by the secondary winding of the transformer. It offers in combination similar advantages as the cascade circuit described above, when a voltage doubling is sufficient.
  • This balanced voltage doubler circuit can also be used in combination with the series resonant circuit described above.
  • the symmetrical voltage doubling circuit has the advantage of an approximately symmetrical current consumption during the positive and negative half cycles of the supply voltage and avoids an asymmetrical magnetic modulation of the core of the transformer at the voltage output of the voltage converter.
  • the balanced voltage doubler circuit is advantageously supplied with energy either directly from the voltage converter or from the secondary winding of the transformer at the voltage output of the push-pull converter. If the balanced voltage doubler circuit is used in combination with the series resonant circuit, then the voltage input of the balanced voltage doubler circuit is connected in parallel with a resonant circuit component and its voltage output is connected to the voltage input of the pulse ignitor.
  • the method according to the invention for operating a high-discharge lamp by means of a voltage converter and a pulse ignition device is characterized in that an increase in the supply voltage for the pulse ignition device is carried out during the ignition phase of the high-pressure discharge lamp with the aid of a series resonant circuit operated close to its resonance frequency and / or by means of a voltage-multiplying cascade circuit.
  • the operation of the invention enables reliable high-frequency operation of the high-pressure discharge lamp with alternating current frequencies which are far above the acoustic resonances of the discharge medium within the high-pressure discharge lamp.
  • a sufficiently high ignition voltage is generated and on the other hand after completion of the ignition during lamp operation caused by the high-frequency lamp current secondary winding of the ignition transformer caused no unreasonable high power losses in the circuit.
  • the voltage converter is advantageously operated at a switching frequency close to the resonant frequency of the series resonant circuit to provide a resonant power supply to the pulse firing device.
  • the switching frequency of the switching means of the voltage converter is preferably to a frequency significantly above the resonant frequency of the series resonant circuit displaced to thereby deactivate the pulse ignition device.
  • FIGS. 1 to 8 illustrated embodiments of the invention are circuit arrangements and pulse ignition devices for the operation of a mercury-free metal halide high-pressure discharge lamp with an electrical power consumption of about 35 watts, which is intended for use in the headlight of a motor vehicle.
  • FIG. 1 a first embodiment of a circuit arrangement according to the invention for operating the above-mentioned mercury-free metal halide high-pressure discharge lamp is shown.
  • a pulse ignition device for igniting the gas discharge in the mercury-free metal halide high-pressure discharge lamp is housed, which is housed in the lamp cap.
  • the circuit arrangement comprises a DC voltage source U0, which is formed by the battery or alternator of the motor vehicle, and a choke L1, a capacitor Cl, two controllable semiconductor switches S1, S2 each having a diode D1 or D2 connected in parallel therewith and a transformer T1 two primary and one secondary winding.
  • the switches S1, S2 are designed as field effect transistors (MOSFETs) and the diodes D1 and D2 are the so-called body diode integrated in the field effect transistor S1 or S2.
  • the inductor L1, the capacitor C1, the semiconductor switches S1, S2 with their diodes D1, D2 and the transformer T1 are connected to each other in the manner of a current-fed push-pull converter, as described in the above-cited prior art. With the aid of the inductor L1, an approximately constant current is impressed on the center tap M1 between the two poles of the transformer T1, which are poled in the same direction.
  • the semiconductor switches S1, S2 switch alternately, so that always one of the two switches S1, S2 is closed.
  • the aforementioned components of the circuit arrangement form the operating part for the lamp, which is arranged in a housing, separate from the lamp.
  • a load circuit is connected, with connections for the mercury-free metal halide high-pressure discharge lamp La and the pulse ignition device is equipped.
  • the pulse ignition device IZV comprises an ignition transformer T2 whose secondary winding L2b is connected in the load circuit.
  • the voltage input of the pulse ignition device IZV is connected in parallel to the resonance capacitor C4.
  • the series resonant circuit C4, L3 is formed here as part of the pulse ignition device IZV and housed together with this in the base of the mercury-free metal halide high-pressure discharge lamp La.
  • the operating and ignition parts are connected to each other via shielded coaxial cables.
  • FIG. 2 illustrated second embodiment of the invention differs from the first Ausrumbleungsbeispiel described above only in that the components L3, C4 of the series resonant circuit are not formed as part of the Impulszündvortechnik IZV, but as part of the operating part. Because of this, were in the Figures 1 and 2 for identical components, the same reference numerals.
  • the illustrated circuit arrangement according to the third embodiment differs from the first embodiment only by the additional capacitor C6 and the dimensioning of the capacitor C5. For this reason, in the embodiments in the FIGS. 1 and 3 for identical components, the same reference numerals.
  • the capacitors C5. C6 and the inductor L3 together form a series resonant circuit which supplies the pulse ignition device IZV with energy during the ignition phase of the high-pressure discharge lamp La.
  • the voltage input of the pulse ignition device IZV is connected in parallel with the capacitors C5, C6 connected in series during the ignition phase of the lamp La.
  • the components C5, L3 of the series resonant circuit which are connected in parallel with the discharge path of the high-pressure discharge lamp La become conductive through the now conductive discharge path the lamp La is short-circuited and the switching frequency of the current-fed push-pull converter is increased so that it is close to the resonance frequency of the series resonant circuit which is formed by the now connected in series to the secondary winding L2b of the ignition transformer T2 capacitor C6 and the aforementioned secondary winding L2b.
  • the capacitor C6 causes, after completion of the ignition phase, during lamp operation, a partial compensation of the inductance of the current flowing through the lamp current secondary winding L2b of the ignition transformer T2, whereby the power losses in the semiconductor switches S1, S2 of the push-pull converter and the transformer T1 can be reduced.
  • Table 1 indicates a dimensioning for the components used in the first to third embodiments.
  • a circuit diagram of the pulse ignition device IZV for the aforementioned embodiments is in the FIG. 5 displayed.
  • the field effect transistors S1, S2 are switched alternately by their control device (not shown), for example as a microcontroller control, with a switching frequency of 350 kilohertz, that of the resonant frequency of the scribe resonant circuit L3, C4 or L3, C5, C6 equivalent.
  • their control device for example as a microcontroller control
  • a switching frequency of 350 kilohertz that of the resonant frequency of the scribe resonant circuit L3, C4 or L3, C5, C6 equivalent.
  • a correspondingly high input voltage U1 is available for the pulse ignition device IZV at the capacitor C4 or at the series connection of the capacitors C5, C6, which is sufficient to supply the ignition capacitor C3 of the pulse ignition device IZV via the rectifier diode D3 and the resistor R1 to the breakdown voltage of the Spark gap FS of the pulse ignition device IZV charge.
  • the capacitor C3 discharges via the primary winding L2a of the ignition transformer T2 and in its secondary winding L2b Hochhardszündimpulse of up to 30,000 volts for igniting the gas discharge in the high-pressure discharge lamp La generated.
  • the series resonant circuit components L3, C4 and L3, C5 are short-circuited by the now conductive discharge path of the lamp La and thus the provided on the resonant capacitor C4 or C5 and C6 input voltage for the pulse ignition device IZV is no longer sufficient to the ignition capacitor C3 to the breakdown voltage of the spark gap FS charge.
  • the switching frequency of the push-pull converter is raised to a center frequency of 550 kilohertz and frequency modulation of the alternating current in the load circuit with a frequency of 30 Hertz and a modulation frequency of 500 Hertz performed by the aforementioned center frequency.
  • the lamp La is supplied with an excessive power to achieve a rapid evaporation of the charge components of the discharge medium of the high-pressure discharge lamp La and thus in the shortest possible time the full light emission of the lamp La.
  • the center frequency of the lamp AC current is raised to the value of 715 kilohertz to ensure operation at the lamp power of 35 watts.
  • the above-described frequency modulation of the lamp current serves to avoid acoustic resonances in the discharge medium of the lamp La. At sufficiently high AC frequencies at which acoustic resonances are no longer stimulated to any significant extent, can be dispensed with the frequency modulation.
  • FIG. 4 the circuit arrangement according to a fourth embodiment of the invention is shown.
  • This circuit arrangement differs from the first embodiment only in that the inductor L1 in the current-fed push-pull converter has been replaced by the auto-transformer L4, L4b and the pulse ignition device IZV by the pulse ignition device IZV '. Identical components were therefore in the FIGS. 1 and 4 provided with the same reference numerals.
  • the function of the inductor L1 is adopted in the fourth embodiment of the primary winding L4 of the autotransformer L4, L4b.
  • the secondary winding L4b of the aforementioned autotransformer has ten times the number of turns of the primary winding L4 and is connected to the voltage input of the pulse ignition device IZV 'connected.
  • the pulse ignition device IZV ' also has the in the FIG. 5 illustrated construction, but differs by the dimensioning of their components of the pulse ignition device IZV.
  • the components of the pulse ignition device IZV 'and its ignition transformer T3 with the primary L3a and secondary winding L3b are dimensioned according to the information in Table 2.
  • the current-supplied push-pull converter according to the fourth embodiment operated at a switching frequency of 100 kilohertz.
  • the components L4, C1 and T1 form during the aforementioned ignition phase a series resonant circuit, so that at the secondary winding L4b generated by the method of resonance peaking and still increased according to the turns ratio of secondary and primary winding of the autotransformer L4, L4b input voltage of about 1000 volts for the pulse ignition device IZV 'is provided.
  • This input voltage is sufficient to charge the ignition capacitor C3 to the breakdown voltage of the spark gap FS and to generate high voltage pulses for igniting the gas discharge in the high-pressure discharge lamp La by means of the ignition transformer T3.
  • the switching frequency of the push-pull converter As already above in the first embodiment has been raised.
  • L4b not longer to charge the ignition capacitor C3 to the breakdown voltage of the spark gap FS.
  • the deactivation of the pulse ignition device IZV 'at the end of the ignition phase but also by means of an additional switch can be ensured.
  • the operation of the high-pressure discharge lamp La after completion of its ignition phase is identical to the first embodiment.
  • FIG. 6 a circuit arrangement according to the fifth to eighth embodiment is shown schematically.
  • This circuit comprises a current-fed push-pull converter, which is identical to the first embodiment is trained.
  • FIG. 6 is different from FIG. 1
  • the fifth to eighth embodiments differ from the above-described embodiments in that the input voltage for the pulse ignition device IZV "is generated not by a series resonant circuit but by a voltage multiplying circuit KK.
  • the circuit KK is formed as a three-stage cascade circuit While the input voltage U2 for the voltage multiplying circuit KK is provided to the secondary winding of the transformer T1, the voltage input j1, j2 of the voltage multiplying circuit KK is in parallel with the secondary winding of the transformer T1 switched into the load circuit.
  • the pulse ignition device IZV " is identical to the in FIG. 5 formed pulse ignition device IZV and the circuit KK designed as a three-stage cascade circuit. Details of the three-stage cascade connection are in the FIG. 7 displayed. Information on the dimensioning of the three-stage cascade connection are listed in Table 3.
  • the push-pull converter is operated at a switching frequency of 100 kilohertz and the three-stage cascade circuit increases the induction voltage of the secondary winding of the transformer T1 according to the number of its stages and provides at its voltage output, the input voltage U1 for the pulse ignition IZV "available.
  • the three-stage cascade connection is switched off by means of a switch (not shown) which cuts off its power supply. The further lamp operation takes place as already in the first embodiment.
  • the sixth embodiment of the invention differs from the fifth embodiment only in that the pulse ignition device and the three-stage cascade circuit are intertwined with each other. That is, components of the three-stage cascade circuit, such as the capacitors C12, C22 and C23, also simultaneously form components of the pulse ignition device. As a result, components can be saved.
  • FIG. 8 the structure of the combination of three-stage cascade connection with the pulse ignition device is shown schematically. The function of the circuit arrangement and the operation of the lamp La are identical to the fifth embodiment.
  • the pulse ignition device IZV is identical to that in FIG. 5 formed Impulszündvorraum IZV and the circuit KK designed as a symmetrical differencessverdoppelungsscrien. Details of the symmetric voltage doubling circuit are in the FIG. 9 displayed. Information on the dimensioning of the symmetrical voltage doubling circuit are shown in Table 4. The output voltage U1 of the balanced voltage doubler circuit is fed to the voltage input of the pulse ignition device IZV.
  • the push-pull converter is operated at a switching frequency of 100 kilohertz and the balanced voltage doubling circuit doubles the induction voltage of the secondary winding of the transformer T1 and provides the input voltage at its voltage output U1 for the pulse ignition device IZV "available.
  • the balanced voltage doubler circuit is turned off by means of a switch (not shown) which cuts its power supply. The further lamp operation takes place as already in the first embodiment.
  • the eighth embodiment of the invention differs from the seventh embodiment only in that the pulse firing device and the balanced voltage doubling circuit are intermeshed with each other. That is, components of the balanced voltage doubler circuit, such as the capacitors C7 and C8, also simultaneously form components of the pulse firing device. As a result, components can be saved.
  • FIG. 10 the structure of the combination of balanced voltage doubling circuit with the pulse ignition device is shown schematically. The function of the circuit arrangement and the operation of the lamp La are identical to the seventh embodiment.
  • the invention is not limited to the exemplary embodiments described in more detail above.
  • the invention can also be applied to a pulse ignition device whose ignition voltage output is provided for connection to the auxiliary ignition electrode of a high-pressure discharge lamp.
  • the voltage input of the voltage multiplying cascade circuit and the balanced voltage doubling circuit may also be connected on the primary side to the push-pull converter and do not necessarily have to be fed by the secondary winding T1b of the transformer T1.
  • Table 1 Dimensioning of the components of the circuit arrangements according to the first to third embodiments C1 1.0 nF, FKP 1 (WIMA) C4 33 pF C5 35 pF C6 570 pF L1 60 ⁇ H, 20Wdg.
  • L3b 60 ⁇ H C11, C21, C31 1.0 nF, FKP1 (WIMA) C12, C22, C32 33 nF, FKP1 (WIMA) D11, D21, D31 US1M D12, D22, D32 US1M FS 2000 volts R2 1000 ohms R3 30000 ohms D4, D5 BY505 C7, C8 22 nF, 1200 volts FS 2000 volts

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  • Circuit Arrangements For Discharge Lamps (AREA)

Claims (16)

  1. Montage pour faire fonctionner des lampes à décharge à haute pression, dans lequel le montage a les caractéristiques suivantes :
    - un convertisseur ( S1, S2 ) de tension pour produire une tension alternative,
    - un transformateur ( T1 ) ayant un enroulement ( T1b ) secondaire qui est raccordé au convertisseur ( S1, S2 ) de tension ou qui fait partie du convertisseur ( S1, S2 ) de tension,
    - un circuit de charge, qui est alimenté par l'enroulement ( T1b ) secondaire du transformateur ( T1 ) et qui a des bornes pour une lampe ( La ) à décharge à haute pression et pour la sortie de la tension d'amorçage d'un dispositif ( IZV ) d'amorçage par impulsion, qui sert à l'amorçage de la décharge dans un gaz dans la lampe ( La ) à décharge à haute pression,
    caractérisé en ce qu'un circuit ( L3, C4 ) de résonance série ou un circuit cascade multipliant la tension ou un circuit symétrique doublant la tension ou la combinaison d'un circuit de résonance série avec un circuit cascade multipliant la tension ou un circuit symétrique doublant la tension est prévu pour l'alimentation en tension du dispositif ( IZV ) d'amorçage par impulsion pendant la phase d'amorçage de la lampe ( La ) à décharge à haute pression.
  2. Montage suivant la revendication 1, caractérisé en ce que le circuit ( L3, C4 ) de résonance série est raccordé à l'enroulement ( T1b ) secondaire du transformateur ( T1 ) et, lorsque la lampe à décharge à haute pression est raccordée, est monté en parallèle à la section de décharge de la lampe ( La ) à décharge à haute pression.
  3. Montage suivant la revendication 1, caractérisé en ce que le circuit de résonance série est raccordé du côté primaire au transformateur ( T1 ).
  4. Montage suivant la revendication 3, caractérisé en ce que l'inductance de résonance du circuit de résonance série est constituée en autotransformateur ( L4, L4b ) dont l'enroulement ( L4b ) secondaire peut être relié à l'entrée de tension d'un dispositif d'amorçage par impulsion.
  5. Montage suivant la revendication 1, caractérisé en ce qu'il est monté dans le circuit de charge un condensateur ( C6 ) qui, lorsque le dispositif ( IZV ) d'amorçage par impulsion est raccordé, est monté en série avec l'enroulement ( L2b ) secondaire du transformateur ( T2 ) d'amorçage du dispositif ( IZV ) d'amorçage par impulsion et qui a des dimensions telles qu'il constitue, pour les impulsions d'amorçage produites par le dispositif ( IZV ) d'amorçage par impulsion, essentiellement un court-circuit et provoque, après que l'amorçage de la décharge dans un gaz dans la lampe ( La ) à décharge à haute pression a été effectué, une compensation en partie de l'inductance du transformateur ( L2b ) d'amorçage.
  6. Montage suivant la revendication 5, caractérisé en ce que le condensateur ( C6 ) fait partie du circuit de résonance série, le circuit ( L3, C4 ) de résonance série étant raccordé à l'enroulement ( T1b ) secondaire du transformateur ( T1 ) et, lorsque la lampe à décharge à haute pression est raccordée, étant monté en parallèle à la section de décharge de la lampe ( La ) à décharge à haute pression.
  7. Montage suivant la revendication 1, caractérisé en ce que le circuit en cascade multipliant la tension est, pendant la phase d'amorçage de la lampe ( La ) à décharge à haute pression, alimenté en énergie par l'enroulement ( T1b ) secondaire du transformateur ( T1 ).
  8. Montage suivant la revendication 1, caractérisé en ce que l'entrée de tension du circuit en cascade multipliant la tension est montée dans le convertisseur ( S1, S2 ) de tension du côté primaire du transformateur ( T1 ).
  9. Montage suivant la revendication 1, caractérisé en ce que le circuit symétrique doublant la tension est alimenté, pendant la phase d'amorçage de la lampe ( La ) à décharge à haute pression, en énergie par l'enroulement ( T1b ) secondaire du transformateur ( T1 ).
  10. Montage suivant la revendication 1, caractérisé en ce que l'entrée de tension du circuit symétrique doublant la tension est montée dans le convertisseur ( S1, S2 ) de tension du côté primaire du transformateur ( T1 ).
  11. Montage suivant l'une ou plusieurs des revendications 1 à 10, caractérisé en ce que le convertisseur ( S1, S2 ) de tension est constitué en convertisseur symétrique alimenté en courant.
  12. Montage suivant l'une des revendications 1 à 11, dans lequel le dispositif ( IZV ) d'amorçage par impulsion est disposé dans la douille d'une lampe ( La ) à décharge à haute pression.
  13. Procédé pour faire fonctionner une lampe à décharge à haute pression au moyen d'un convertisseur de tension et d'un dispositif d'amorçage par impulsion, la tension d'alimentation du dispositif d'amorçage par impulsion étant produite à l'aide du convertisseur de tension,
    caractérisé en ce que, pendant la phase d'amorçage de la lampe à décharge à haute pression, on effectue, à l'aide d'un circuit de résonance série fonctionnant près de sa résonance ou d'un circuit en cascade multipliant la tension ou d'un circuit symétrique doublant la tension ou au moyen de la combinaison d'un circuit de résonance série avec un circuit en cascade multipliant la tension ou un circuit symétrique doublant la tension, une élévation de la tension d'alimentation du dispositif d'amorçage par impulsion.
  14. Procédé suivant la revendication 13, caractérisé en ce que l'on fait fonctionner la lampe à décharge à haute pression après avoir effectué l'amorçage de la décharge dans un gaz dans la lampe à décharge à haute pression par des tensions alternatives dont la fréquence est supérieure à la fréquence de résonance du circuit de résonance série.
  15. Procédé suivant la revendication 13, caractérisé en ce que l'on désactive le circuit en cascade multipliant la tension après que l'amorçage de la décharge dans un gaz dans la lampe à décharge à haute pression a été effectué.
  16. Procédé suivant la revendication 13, caractérisé en ce que l'on désactive le circuit symétrique doublant la tension après que l'amorçage de la décharge dans un gaz dans la lampe à décharge à haute pression a été effectué.
EP05742608A 2004-04-26 2005-04-14 Montage et procede pour faire fonctionner des lampes a decharge haute pression Not-in-force EP1741320B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004020499A DE102004020499A1 (de) 2004-04-26 2004-04-26 Schaltungsanordnung zum Betrieb von Hochdruckentladungslampen und Betriebsverfahren für eine Hochdruckentladungslampe
PCT/DE2005/000685 WO2005104632A1 (fr) 2004-04-26 2005-04-14 Montage et procede pour faire fonctionner des lampes a decharge haute pression

Publications (2)

Publication Number Publication Date
EP1741320A1 EP1741320A1 (fr) 2007-01-10
EP1741320B1 true EP1741320B1 (fr) 2008-11-19

Family

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Application Number Title Priority Date Filing Date
EP05742608A Not-in-force EP1741320B1 (fr) 2004-04-26 2005-04-14 Montage et procede pour faire fonctionner des lampes a decharge haute pression

Country Status (8)

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US (1) US7656099B2 (fr)
EP (1) EP1741320B1 (fr)
JP (1) JP2007535101A (fr)
CN (1) CN1947473A (fr)
AT (1) ATE415075T1 (fr)
DE (2) DE102004020499A1 (fr)
ES (1) ES2317233T3 (fr)
WO (1) WO2005104632A1 (fr)

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DE102004055976A1 (de) * 2004-11-19 2006-05-24 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Schaltungsanordnung zum Betrieb einer Hochdruckentladungslampe
DE102005023290A1 (de) * 2005-05-20 2006-11-23 Sma Technologie Ag Bidirektionaler Batteriewechselrichter
JP4462119B2 (ja) * 2005-06-10 2010-05-12 セイコーエプソン株式会社 バラスト及びプロジェクタ
WO2009049674A1 (fr) * 2007-10-17 2009-04-23 Osram Gesellschaft mit beschränkter Haftung Ballast électronique et procédé pour faire fonctionner une lampe à décharge
EP2248393B1 (fr) * 2008-02-25 2013-04-03 OSRAM GmbH Dispositif et procédé pour produire une tension d allumage pour une lampe
CN101309540B (zh) * 2008-07-10 2011-10-05 北方工业大学 电子触发器及hid灯
KR101069966B1 (ko) * 2010-02-03 2011-10-04 삼성전기주식회사 광원체 구동 장치
DE102010054381B4 (de) * 2010-12-13 2012-09-06 B & S Elektronische Geräte GmbH Verfahren zur Stromversorgung einer Entladungslampe, Schaltungsanordnung mit einem elektronischen Vorschaltgerät und einer Entladungslampe sowie Vorschaltgerät
DE102011076333A1 (de) * 2011-05-24 2012-11-29 Osram Ag Schaltungsanordnung und Verfahren zum Betreiben mindestens einer Hochdruckentladungslampe
DE102011087703A1 (de) * 2011-12-05 2013-06-06 Osram Gmbh Schaltungsanordnung zum Zünden und Betrieb einer Entladungslampe
CN103841737B (zh) * 2014-03-10 2016-06-15 湖南星联顶晟电子科技有限公司 一种hid灯电子镇流器的混合点火方法
JP6424533B2 (ja) * 2014-09-17 2018-11-21 株式会社リコー 電圧共振型インバータ装置及びその制御方法と表面改質装置
KR102531485B1 (ko) * 2016-08-31 2023-05-10 셀프로그 아게 고전압 펄스 시스템 작동 방법
CN109526128B (zh) * 2018-11-20 2020-10-16 福建睿能科技股份有限公司 一种驱动电路及开关电源

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Also Published As

Publication number Publication date
US20070228997A1 (en) 2007-10-04
DE502005006006D1 (de) 2009-01-02
WO2005104632A1 (fr) 2005-11-03
ATE415075T1 (de) 2008-12-15
CN1947473A (zh) 2007-04-11
US7656099B2 (en) 2010-02-02
DE102004020499A1 (de) 2005-11-10
EP1741320A1 (fr) 2007-01-10
JP2007535101A (ja) 2007-11-29
ES2317233T3 (es) 2009-04-16

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