EP2311300A1 - High-voltage pulse generator and high-pressure discharge lamp having a high-voltage pulse generator - Google Patents

High-voltage pulse generator and high-pressure discharge lamp having a high-voltage pulse generator

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Publication number
EP2311300A1
EP2311300A1 EP09780713A EP09780713A EP2311300A1 EP 2311300 A1 EP2311300 A1 EP 2311300A1 EP 09780713 A EP09780713 A EP 09780713A EP 09780713 A EP09780713 A EP 09780713A EP 2311300 A1 EP2311300 A1 EP 2311300A1
Authority
EP
European Patent Office
Prior art keywords
pulse generator
voltage pulse
pressure discharge
discharge lamp
voltage
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.)
Granted
Application number
EP09780713A
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German (de)
French (fr)
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EP2311300B1 (en
Inventor
Andreas Kloss
Steffen Walter
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Osram GmbH
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Osram GmbH
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Publication of EP2311300A1 publication Critical patent/EP2311300A1/en
Application granted granted Critical
Publication of EP2311300B1 publication Critical patent/EP2311300B1/en
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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
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • H05B41/042—Starting switches using semiconductor devices

Definitions

  • the invention relates to a high voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is designed as an LTCC component and is wound from at least two ceramic and at least two metal-containing layers.
  • the invention also relates to a high-pressure discharge lamp with a tubular outer bulb.
  • the invention is based on a high voltage pulse generator according to the preamble of the main claim.
  • DE 10 2005 061 832 A1 discloses a high-voltage pulse generator on the basis of a spiral pulse generator, which is embodied as an LTCC component, so that it can be used in the lamp base or in the outer bulb of a high-pressure discharge lamp. As also shown in FIG. 1a, this generator has a round basic shape.
  • FIG. 1b shows the basic relationship of the voltage amplification of a spiral pulse generator as a function of its diameter. The voltage gain increases visibly with increasing diameter.
  • the high-pressure discharge lamp requires a high voltage to ignite, ie to achieve a dielectric breakdown between its electrodes, this is a problem because then the outer diameter of a suitable spiral pulse generator becomes larger than the inner diameter of the outer bulb of the high-pressure discharge lamp. lamp.
  • the high-voltage pulse generator has a deviating from the circular hollow cylindrical shape.
  • a hollow cylindrical shape while a cylindrical shape is considered, which is broken by a smaller in diameter but just as long cylindrical shape.
  • the outline of the high-voltage pulse generator corresponds to a closed curve deviating from the circular shape, such as, for example, an oval shape in a first embodiment.
  • An oval shape is a shape with the properties that each straight line intersects the oval in two points and each point of the oval has exactly one tangent.
  • the side view of the high-voltage pulse generator corresponds to the shape of an oval ring.
  • the outline of the high-voltage pulse generator corresponds to a curve with two opposite parallel straight lines, which are connected at two opposite points of the straight line in each case by a semicircle.
  • This form can be thought of as similar to the plan of the Circus Maximus.
  • the side view then corresponds analogously to the shape of a ring whose outline corresponds to two opposite parallel straight lines, which are connected at two opposite points of the straight line in each case by a semicircle.
  • the eccentricity of the high voltage pulse generator is preferably between 1 and 10, more preferably between 1.5 and 3. As eccentricity while we considered the ratio of the diameter of the high voltage pulse generator in radially offset by 90 ° directions.
  • the solution of the problem with respect to the high-pressure discharge lamp is effected by means of a high-pressure discharge lamp having a tubular outer bulb, characterized in that the outer bulb of the high-pressure discharge lamp has a high-voltage pulse generator with one or more of the aforementioned features.
  • the outer bulb of the high-pressure discharge lamp preferably has an inner diameter of 18-25 mm.
  • the high-pressure discharge lamp preferably has a wiring of the spiral pulse generator, which generates the charging voltage of the spiral pulse generator by means of a resonance peaking.
  • the wiring can be accommodated in the lamp base, but it can also with be accommodated in the outer bulb of the high-pressure discharge lamp the spiral pulse generator.
  • FIG. 1a A round spiral pulse generator according to the prior art.
  • FIG. Ib A diagram showing the relationship of the voltage gain of a spiral pulse generator according to the prior art depending on its diameter.
  • FIG. 2a An oval spiral pulse generator of a first embodiment.
  • FIG. 2b A spiral pulse generator of a second embodiment, the outline of which corresponds to a curve with two opposite parallel straight lines, which are opposite to one another
  • Points of the line are each connected by a semicircle.
  • FIG. 3 is a graph showing the output voltage of a prior art round spiral pulse generator as compared with an oval spiral pulse generator according to the present invention.
  • Fig. 4 A circuit diagram of the wiring of the spiral pulse generator.
  • the spiral pulse generator has an oval shape. Surprisingly, it has been shown that the output voltage of a spiral pulse generator with an oval shape is only about 1/3 less than the output voltage of a comparable round spiral pulse generator. In Fig. 3 this is shown clearly.
  • the signal 32 shows the output voltage of a round spiral pulse generator, the signal 34 that of an oval spiral pulse generator. It can clearly be seen that the maximum output voltage of the round spiral pulse generator is only about one third higher than the maximum output voltage of the oval spiral pulse generator.
  • a circular spiral pulse generator that would have a similar diameter to the width of an oval spiral pulse generator would produce a significantly lower output voltage.
  • an oval spiral pulse generator can be inserted lengthwise into a cylindrical volume that is limited in diameter but not in length. This is the case with certain high-pressure discharge lamps which have a slender outer bulb.
  • the outer bulb is too slender to accommodate a suitable round spiral pulse generator, an oval spiral pulse
  • generator can be easily introduced into the possibly extended outer bulb of a lamp.
  • the eccentricity of the spiral pulse generator ie the ratio -, ie the length 1 of the spiral pulse generator to b its width b, is here between 1 and 10, more preferably between 1.5 and 3.
  • FIG. 4 shows a suitable wiring of the spiral pulse generator according to the invention in order to ensure a hot re-ignitability of the high-pressure discharge lamp 5.
  • the spiral pulse generator 1 is installed in the outer bulb of the high-pressure discharge lamp 5 as described above.
  • the spiral pulse generator 1 can also be installed in the base of the high-pressure discharge lamp 5.
  • a spark gap 51 and a charging resistor 52 are still necessary.
  • the wiring can be arranged in accordance with temperature-resistant design with in the outer bulb of the high-pressure discharge lamp 5 or in the base of the high-pressure discharge lamp 5.
  • the wiring in the base has the disadvantage that in an arrangement of the spiral pulse generator 1 in the outer bulb of the high pressure discharge lamp 5 three power supply lines must be performed in the outer bulb.
  • the spiral-pulse generator with wiring in the lamp socket takes up space, then only two power supply lines are necessary, which, however, must be high-voltage-proof.
  • the spiral pulse generator including wiring in the outer bulb of the high-pressure discharge lamp 5
  • only two power supplies are also required, which also need not be designed high voltage resistant.
  • the spiral pulse generator is not used as before as 'ignition transformer', but is according to the invention part of a resonant circuit, which uses the capacitive properties of the spiral pulse generator.
  • the resonant circuit preferably consists of the output inductance of an electronic operating device 20, as well as of the charging resistor 52 and the spiral pulse generator 1.
  • the resonant circuit is excited such that the voltage overshoot occurs at the capacitance, ie at the spiral pulse generator 1. Due to the voltage increase, however, a voltage is applied to the spiral pulse generator, which causes the parallel-connected spark gap 51 to break, and thus triggers the spiral pulse generator.
  • the known ignition pulse of the spiral pulse generator 1 is superimposed by the voltage increase caused by the resonance circuit, which results in a higher ignition voltage and also a significantly higher ignition energy for the high-pressure discharge lamp 5.
  • the high-pressure discharge lamp 5 can thus be ignited better and safer.
  • the mode of operation according to the invention with a resonance peaking can also be used with a known spiral pulse generator of the prior art.
  • the second embodiment shown in Fig. 2b differs from the first embodiment only in the shape of the spiral pulse generator.
  • the spiral pulse generator has a shape whose contour corresponds to a curve with two opposite parallel lines, which are connected in each case by a semicircle at two opposite points of the straight line. the.
  • This form is known, for example, as the floor plan of the Circus Maximus in Rome.
  • the spiral pulse generator here has straight segments, this can be its eccentricity, ie its ratio of the length 1 to the width b further increase; the eccentricity of the spiral pulse generator is also between 1 and 10, more preferably between 1.5 and 3.
  • a high-pressure discharge lamp 5 can be started excellently.
  • an exemplary design will be given, which could have a configuration consisting of a high-pressure discharge lamp 5 according to the invention with the spiral pulse generator 1 according to the invention.
  • the spiral pulse generator according to the invention has a capacity of about 18OnF.
  • a quality of 10 is necessary for the spiral pulse generator 1.
  • the conduction and charging resistor 52 has a resistance of about 5 ⁇ .
  • the throttle (not shown in FIG. 4) of the electronic operating device 20 has an inductance value of approximately 0.45 mH.
  • the spiral pulse generator according to the invention can generate a high ignition voltage in the two-digit kV range with its eccentricity from the charging voltage, it is possible to produce a high-pressure discharge lamp which can be directly connected to a merely slightly adapted electronic operating device.

Landscapes

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

Abstract

A high-voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is implemented as an LTCC component and is wound from at least two ceramic and at least two metal-containing layers, and the high-voltage pulse generator can be introduced into a cylindrical volume V=d2*pi*3*d whose length is three times as long as the diameter of the volume, and the volume of the high-voltage pulse generator is greater than one-third of the cylindrical volume. Also disclosed is a high-pressure discharge lamp having a tubular outer piston, wherein the outer piston of the high-pressure discharge lamp has an aforesaid high-voltage pulse generator.

Description

Be s ehre ibung Confession
[1] Hochspannungsimpulsgenerator und Hochdruckentladungslampe mit einem Hochspannungsimpulsgenerator.[1] High voltage pulse generator and high pressure discharge lamp with a high voltage pulse generator.
Technisches GebietTechnical area
[2] Die Erfindung betrifft einen Hochspannungsimpulsge- nerator auf der Basis eines Spiral-Puls-Generators, wobei der Spiral-Puls-Generator als LTCC-Bauteil ausgeführt ist und aus mindestens zwei keramischen- und mindestens zwei metallhaltigen Schichten gewickelt ist. Die Erfindung betrifft ebenfalls eine Hochdruckentladungslampe mit einem rohrförmigen Außenkolben.[2] The invention relates to a high voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is designed as an LTCC component and is wound from at least two ceramic and at least two metal-containing layers. The invention also relates to a high-pressure discharge lamp with a tubular outer bulb.
Stand der TechnikState of the art
[3] Die Erfindung geht aus von einem Hochspannungsimpulsgenerator nach der Gattung des Hauptanspruchs.[3] The invention is based on a high voltage pulse generator according to the preamble of the main claim.
[4] Aus der DE 10 2005 061 832 Al ist ein Hochspannungs- impulsgenerator auf der Basis eines Spiral-Puls- Generators bekannt, der als LTCC-Bauteil ausgeführt ist, so dass er im Lampensockel oder im Außenkolben einer Hochdruckentladungslampe Verwendung finden kann. Dieser Generator hat, wie auch in der Fig. Ia dargestellt, eine runde Grundform. Fig. Ib zeigt hier erläuternd den grundsätzlichen Zusammenhang der Spannungsverstärkung eines Spiral-Puls-Generators in Abhängigkeit von seinem Durchmesser. Die Spannungsverstärkung steigt mit zunehmendem Durchmesser zusehends. Bei Hochdruckentladungslampen, die eine höhere Zündspannung benötigen, zeigt sich jedoch das Problem, dass der Hochspannungsimpulsgenerator, der als runder Spiral-Puls-Generator ausgeführt ist, zu groß wird, da seine Ausgangsspannung UA von seinen geometrischen Abmessungen, speziell seinem Außen- und Innendurch- messer (AD, ID) abhängt, wie aus folgender Formel hervorgeht: UA=2xnxULx (AD-ID) /AD. Dabei steht n für die Windungszahl des Spiral-Puls-Generators, sowie UL für die Lade- beziehungsweise Eingangsspannung. Diese Gleichung besagt, dass die Effizienz eines Spiral-Puls-Generators unter anderem vom Verhältnis der Differenz seines inneren und äußeren Durchmessers zu seinem mittleren Durchmesser bestimmt ist.DE 10 2005 061 832 A1 discloses a high-voltage pulse generator on the basis of a spiral pulse generator, which is embodied as an LTCC component, so that it can be used in the lamp base or in the outer bulb of a high-pressure discharge lamp. As also shown in FIG. 1a, this generator has a round basic shape. FIG. 1b shows the basic relationship of the voltage amplification of a spiral pulse generator as a function of its diameter. The voltage gain increases visibly with increasing diameter. In high-pressure discharge lamps, which require a higher ignition voltage, however, there is the problem that the high-voltage pulse generator, which is designed as a round spiral pulse generator, becomes too large, since its output voltage U A of its geometric dimensions, especially its outside and inside - knife (AD, ID) depends on the following formula: U A = 2xnxU L x (AD-ID) / AD. Here, n stands for the number of turns of the spiral pulse generator, and U L for the charging or input voltage. This equation states that the efficiency of a spiral pulse generator is determined inter alia by the ratio of the difference between its inner and outer diameters to its mean diameter.
[5] Benötigt die Hochdruckentladungslampe eine hohe Spannung zum zünden, also um einen dielektrischen Durchbruch zwischen ihren Elektroden zu erreichen, stellt das ein Problem dar, da dann der Außendurchmesser eines geeigneten Spiral-Puls-Generators größer wird als der Innendurchmesser des Außenkolbens der Hochdruckentladungs- lampe.[5] If the high-pressure discharge lamp requires a high voltage to ignite, ie to achieve a dielectric breakdown between its electrodes, this is a problem because then the outer diameter of a suitable spiral pulse generator becomes larger than the inner diameter of the outer bulb of the high-pressure discharge lamp. lamp.
Aufgabetask
[6] Es ist Aufgabe der Erfindung, einen Hochspannungsimpulsgenerator auf der Basis eines Spiral-Puls-Generators, wobei der Spiral-Puls-Generator als LTCC-Bauteil ausge- führt ist und aus mindestens zwei keramischen- und mindestens zwei metallhaltigen Schichten gewickelt ist, anzugeben, der mechanisch so ausgestaltet ist, dass er auch für Hochdruckentladungslampen Verwendung finden kann, die einen schlanken Außenkolben aufweisen. Es ist ebenfalls Aufgabe der Erfindung, eine solche Hochdruckentladungslampe mit schlankem Außenkolben anzugeben, die ein verbessertes Zündverhalten zeigt.[6] It is the object of the invention to provide a high-voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is designed as an LTCC component and is wound from at least two ceramic layers and at least two metal-containing layers, specify that is mechanically designed so that it can also be used for high-pressure discharge lamps, which have a slender outer bulb. It is also an object of the invention to provide such a high-pressure discharge lamp with a slim outer bulb, which shows an improved ignition behavior.
Darstellung der Erfindung [7] Die Lösung der Aufgabe bezüglich des Hochspannungsimpulsgenerators erfolgt erfindungsgemäß mit einem Hochspannungsimpulsgenerator auf der Basis eines Spiral-Puls- Generators, wobei der Spiral-Puls-Generator als LTCC- Bauteil ausgeführt ist und aus mindestens zwei keramischen- und mindestens zwei metallhaltigen Schichten gewickelt ist, dadurch gekennzeichnet, dass der Hochspannungsimpulsgenerator in ein zylindrisches Volumen V=d2*π*3*d einbringbar ist, dessen Länge dreimal so lang ist wie der Durchmesser des Volumens, und das Volumen des Hochspannungsimpulsgenerators größer ist als ein Drittel des zylindrischen Volumens. Erstaunlicherweise hat sich nämlich gezeigt, dass die vom Spiral-Puls-Generator abgebbare Zündspannung nicht wesentlich sinkt, wenn der Spiral-Puls-Generator keine runde, sondern eine in eine Richtung abgeflachte Form wie z.B. eine ovale Form aufweist.Presentation of the invention The solution of the problem with respect to the high voltage pulse generator is carried out according to the invention with a high voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is designed as LTCC component and wound from at least two ceramic and at least two metal-containing layers is characterized in that the high voltage pulse generator is insertable into a cylindrical volume V = d2 * π * 3 * d whose length is three times the diameter of the volume and the volume of the high voltage pulse generator is greater than one third of the cylindrical volume. Surprisingly, it has been shown that the firing voltage which can be emitted by the spiral pulse generator does not drop significantly when the spiral pulse generator does not have a round shape but a shape which is flattened in one direction, for example an oval shape.
[8] Der Hochspannungsimpulsgenerator besitzt dabei eine von der Kreisform abweichende Hohlzylindrische Form. Als Hohlzylindrische Form wird dabei eine Zylindrische Form angesehen, die von einer im Durchmesser kleineren aber genau so langen Zylindrischen Form durchbrochen ist. Besonders bevorzugt entspricht dabei der Umriss des Hochspannungsimpulsgenerators einer geschlossenen von der Kreisform abweichenden Kurve, wie z.B. einer ovalen Form in einer ersten Ausführungsform. Als ovale Form wird dabei eine Form mit den Eigenschaften, dass jede Gerade das Oval in höchstens zwei Punkten schneidet und jeder Punkt des Ovals genau eine Tangente hat, bezeichnet. Die Sei- tenansicht des Hochspannungsimpulsgenerators entspricht dabei der Form eines ovalen Rings. - A -The high-voltage pulse generator has a deviating from the circular hollow cylindrical shape. As a hollow cylindrical shape while a cylindrical shape is considered, which is broken by a smaller in diameter but just as long cylindrical shape. Particularly preferably, the outline of the high-voltage pulse generator corresponds to a closed curve deviating from the circular shape, such as, for example, an oval shape in a first embodiment. An oval shape is a shape with the properties that each straight line intersects the oval in two points and each point of the oval has exactly one tangent. The side view of the high-voltage pulse generator corresponds to the shape of an oval ring. - A -
[9] In einer zweiten Ausführungsform entspricht der Um- riss des Hochspannungsimpulsgenerators einer Kurve mit zwei gegenüberliegenden parallelen Geraden, die an zwei gegenüberliegenden Punkten der Gerade jeweils durch einen Halbkreis verbunden werden. Diese Form kann man sich ähnlich wie den Grundriss des Circus Maximus vorstellen. Die Seitenansicht entspricht dann analog der Form eines Rings, dessen Umriss zwei gegenüberliegenden parallelen Geraden entspricht, die an zwei gegenüberliegenden Punk- ten der Gerade jeweils durch einen Halbkreis verbunden werden .[9] In a second embodiment, the outline of the high-voltage pulse generator corresponds to a curve with two opposite parallel straight lines, which are connected at two opposite points of the straight line in each case by a semicircle. This form can be thought of as similar to the plan of the Circus Maximus. The side view then corresponds analogously to the shape of a ring whose outline corresponds to two opposite parallel straight lines, which are connected at two opposite points of the straight line in each case by a semicircle.
[10] Die Exzentrizität des Hochspannungsimpulsgenerators liegt dabei bevorzugt zwischen 1 und 10, besonders bevorzugt zwischen 1,5 und 3. Als Exzentrizität wir dabei das Verhältnis der Durchmesser des Hochspannungsimpulsgenerators in radial um 90° versetzte Richtungen angesehen.The eccentricity of the high voltage pulse generator is preferably between 1 and 10, more preferably between 1.5 and 3. As eccentricity while we considered the ratio of the diameter of the high voltage pulse generator in radially offset by 90 ° directions.
[11] Die Lösung der Aufgabe bezüglich der Hochdruckentladungslampe erfolgt mittels einer Hochdruckentladungslampe mit einem Rohrförmigen Außenkolben, dadurch gekenn- zeichnet, dass der Außenkolben der Hochdruckentladungslampe einen Hochspannungsimpulsgenerator mit einem oder mehreren der vorgenannten Merkmale aufweist. Der Außenkolben der Hochdruckentladungslampe weist dabei bevorzugt einen Innendurchmesser von 18-25 mm auf.The solution of the problem with respect to the high-pressure discharge lamp is effected by means of a high-pressure discharge lamp having a tubular outer bulb, characterized in that the outer bulb of the high-pressure discharge lamp has a high-voltage pulse generator with one or more of the aforementioned features. The outer bulb of the high-pressure discharge lamp preferably has an inner diameter of 18-25 mm.
[12] Die Hochdruckentladungslampe weist dabei bevorzugt eine Beschaltung des Spiral-Puls-Generators auf, die die Ladespannung des Spiral-Puls-Generators mittels einer Resonanzüberhöhung erzeugt. Die Beschaltung kann dabei im Lampensockel untergebracht sein, sie kann aber auch mit dem Spiral-Puls-Generator im Außenkolben der Hochdruckentladungslampe untergebracht sein.[12] The high-pressure discharge lamp preferably has a wiring of the spiral pulse generator, which generates the charging voltage of the spiral pulse generator by means of a resonance peaking. The wiring can be accommodated in the lamp base, but it can also with be accommodated in the outer bulb of the high-pressure discharge lamp the spiral pulse generator.
[13] Weitere vorteilhafte Weiterbildungen und Ausgestaltungen der Erfindung ergeben sich aus weiteren abhängigen Ansprüchen und aus der folgenden Beschreibung.Further advantageous developments and embodiments of the invention will become apparent from further dependent claims and from the following description.
Kurze Beschreibung der Zeichnung (en)Short description of the drawing (s)
[14] Die Erfindung wird nachstehend anhand von Ausführungsbeispielen näher erläutert. Es zeigen:[14] The invention will be explained in more detail below with reference to exemplary embodiments. Show it:
[15] Fig. Ia Ein runder Spiral-Puls-Generator nach dem Stand der Technik.[15] FIG. 1a A round spiral pulse generator according to the prior art.
[16] Fig. Ib Ein Diagramm, das den Zusammenhang der Spannungsverstärkung eines Spiral-Puls- Generators nach dem Stand der Technik abhängig von seinem Durchmesser zeigt.[16] Fig. Ib A diagram showing the relationship of the voltage gain of a spiral pulse generator according to the prior art depending on its diameter.
[17] Fig. 2a Ein ovaler Spiral-Puls-Generator einer ersten Ausführungsform.[Fig. 2a] An oval spiral pulse generator of a first embodiment.
[18] Fig. 2b Ein Spiral-Puls-Generator einer zweiten Ausführungsform, dessen Umriss einer Kurve mit zwei gegenüberliegenden parallelen Geraden entspricht, die an zwei gegenüberliegenden[Fig. 2b] A spiral pulse generator of a second embodiment, the outline of which corresponds to a curve with two opposite parallel straight lines, which are opposite to one another
Punkten der Gerade jeweils durch einen Halbkreis verbunden werden.Points of the line are each connected by a semicircle.
[19] Fig. 3 Ein Diagramm, das die Ausgangsspannung eines runden Spiral-Puls-Generators nach dem Stand der Technik verglichen mit einem erfindungsgemäßen ovalen Spiral-Puls-Generator zeigt, [20] Fig. 4 Ein Schaltbild der Beschaltung des Spiral- Puls-Generators .[19] FIG. 3 is a graph showing the output voltage of a prior art round spiral pulse generator as compared with an oval spiral pulse generator according to the present invention. [20] Fig. 4 A circuit diagram of the wiring of the spiral pulse generator.
Bevorzugte Ausführung der ErfindungPreferred embodiment of the invention
Erste AusführungsformFirst embodiment
[21] In der ersten Ausführungsform, die in Fig. 2a gezeigt ist, hat der Spiral-Puls-Generator eine ovale Form. Erstaunlicherweise hat sich gezeigt, dass die Ausgangsspannung eines Spiral-Puls-Generators mit einer ovalen Form nur um ca. 1/3 geringer ist als die Ausgangsspannung eines vergleichbaren runden Spiral-Puls-Generators. In Fig. 3 ist dies anschaulich dargestellt. Das Signal 32 zeigt die Ausgangsspannung eines runden Spiral-Puls- Generators, das Signal 34 die eines ovalen Spiral-Puls- Generators. Es ist deutlich zu sehen, dass die maximale Ausgangsspannung des runden Spiral-Puls-Generators nur um etwa ein drittel höher ist als die maximale Ausgangsspannung des ovalen Spiral-Puls-Generators. Ein runder Spiral-Puls-Generator, der einen ähnlichen Durchmesser wie die Breite eines ovalen Spiral-Puls-Generators hätte, würde eine signifikant niedrigere Ausgangsspannung erzeugen .[21] In the first embodiment shown in Fig. 2a, the spiral pulse generator has an oval shape. Surprisingly, it has been shown that the output voltage of a spiral pulse generator with an oval shape is only about 1/3 less than the output voltage of a comparable round spiral pulse generator. In Fig. 3 this is shown clearly. The signal 32 shows the output voltage of a round spiral pulse generator, the signal 34 that of an oval spiral pulse generator. It can clearly be seen that the maximum output voltage of the round spiral pulse generator is only about one third higher than the maximum output voltage of the oval spiral pulse generator. A circular spiral pulse generator that would have a similar diameter to the width of an oval spiral pulse generator would produce a significantly lower output voltage.
[22] Ein ovaler Spiral-Puls-Generator kann aber längs in ein zylindrisches Volumen eingeführt werden, dass im Durchmesser begrenzt ist, nicht aber in der Länge. Dies ist bei bestimmten Hochdruckentladungslampen der Fall, die einen schlanken Außenkolben aufweisen. Der Außenkolben ist zu schlank, um einen geeigneten runden Spiral- Puls-Generator aufzunehmen, ein ovaler Spiral-Puls- Generator kann jedoch problemlos in den evtl. verlängerten Außenkolben einer Lampe eingebracht werden. Die Exzentrizität des Spiral-Puls-Generators, d.h. das Verhältnis — , also der Länge 1 des Spiral-Puls-Generators zu b seiner Breite b, beträgt hier zwischen 1 und 10, besonders bevorzugt zwischen 1,5 und 3.[22] However, an oval spiral pulse generator can be inserted lengthwise into a cylindrical volume that is limited in diameter but not in length. This is the case with certain high-pressure discharge lamps which have a slender outer bulb. The outer bulb is too slender to accommodate a suitable round spiral pulse generator, an oval spiral pulse However, generator can be easily introduced into the possibly extended outer bulb of a lamp. The eccentricity of the spiral pulse generator, ie the ratio -, ie the length 1 of the spiral pulse generator to b its width b, is here between 1 and 10, more preferably between 1.5 and 3.
[23] Fig. 4 zeigt eine geeignete Beschaltung des erfindungsgemäßen Spiral-Puls-Generators, um eine Heißwieder- zündfähigkeit der Hochdruckentladungslampe 5 zu gewähr- leisten. Der Spiral-Puls-Generator 1 ist wie oben beschrieben in den Außenkolben der Hochdruckentladungslampe 5 eingebaut. Alternativ kann der Spiral-Puls-Generator 1 auch in den Sockel der Hochdruckentladungslampe 5 eingebaut werden. Als Beschaltung sind noch eine Funkenstrecke 51 sowie ein Ladewiderstand 52 notwendig. Die Beschaltung kann in entsprechend temperaturfester Ausführung mit in den Außenkolben der Hochdruckentladungslampe 5 oder aber in den Sockel der Hochdruckentladungslampe 5 angeordnet werden. Die Beschaltung im Sockel birgt den Nachteil, dass bei einer Anordnung des Spiral-Puls-Generators 1 im Außenkolben der Hochdruckentladungslampe 5 drei Stromzuführungen in den Außenkolben geführt werden müssen. Findet der Spiral-Puls-Generator mit Beschaltung im Lampensockel Platz, so sind lediglich 2 Stromzuführungen not- wendig, die aber Hochspannungsfest ausgeführt sein müssen. Bei einer Anordnung des Spiral-Puls-Generators samt Beschaltung im Außenkolben der Hochdruckentladungslampe 5 werden ebenfalls nur zwei Stromzuführungen benötigt, die auch nicht hochspannungsfest ausgeführt sein müssen. [24] Der Spiral-Puls-Generator wird hier jedoch nicht wie bisher als , Zündtransformator' genutzt, sondern ist erfindungsgemäß Teil eines Resonanzkreises, der die kapazitiven Eigenschaften des Spiral-Puls-Generators verwendet. Der Resonanzkreis besteht vorzugsweise aus der Ausgangsinduktivität eines elektronischen Betriebsgerätes 20, sowie aus dem Ladewiderstand 52 und dem Spiral-Puls- Generator 1. Der Resonanzkreis wird derart angeregt, dass die Spannungsüberhöhung an der Kapazität, also am Spiral- Puls-Generator 1 auftritt. Durch die Spannungsüberhöhung liegt aber am Spiral-Puls-Generator eine Spannung an, die die Parallelgeschaltete Funkenstrecke 51 durchbrechen lässt, und die damit den Spiral-Puls-Generator triggert. Somit wird der bekannte Zündpuls des Spiral-Puls- Generators 1 von der durch den Resonanzkreis verursachten Spannungsüberhöhung überlagert, was eine höhere Zündspannung und auch eine signifikant höhere Zündenergie für die Hochdruckentladungslampe 5 zur Folge hat. Die Hochdruckentladungslampe 5 kann damit besser und sicherer gezündet werden. Die erfindungsgemäße Betriebsweise mit einer Resonanzüberhöhung kann natürlich auch mit einem bekannten Spiral-Puls-Generator aus dem Stand der Technik angewandt werden .[23] FIG. 4 shows a suitable wiring of the spiral pulse generator according to the invention in order to ensure a hot re-ignitability of the high-pressure discharge lamp 5. The spiral pulse generator 1 is installed in the outer bulb of the high-pressure discharge lamp 5 as described above. Alternatively, the spiral pulse generator 1 can also be installed in the base of the high-pressure discharge lamp 5. As a circuit, a spark gap 51 and a charging resistor 52 are still necessary. The wiring can be arranged in accordance with temperature-resistant design with in the outer bulb of the high-pressure discharge lamp 5 or in the base of the high-pressure discharge lamp 5. The wiring in the base has the disadvantage that in an arrangement of the spiral pulse generator 1 in the outer bulb of the high pressure discharge lamp 5 three power supply lines must be performed in the outer bulb. If the spiral-pulse generator with wiring in the lamp socket takes up space, then only two power supply lines are necessary, which, however, must be high-voltage-proof. In an arrangement of the spiral pulse generator including wiring in the outer bulb of the high-pressure discharge lamp 5, only two power supplies are also required, which also need not be designed high voltage resistant. However, the spiral pulse generator is not used as before as 'ignition transformer', but is according to the invention part of a resonant circuit, which uses the capacitive properties of the spiral pulse generator. The resonant circuit preferably consists of the output inductance of an electronic operating device 20, as well as of the charging resistor 52 and the spiral pulse generator 1. The resonant circuit is excited such that the voltage overshoot occurs at the capacitance, ie at the spiral pulse generator 1. Due to the voltage increase, however, a voltage is applied to the spiral pulse generator, which causes the parallel-connected spark gap 51 to break, and thus triggers the spiral pulse generator. Thus, the known ignition pulse of the spiral pulse generator 1 is superimposed by the voltage increase caused by the resonance circuit, which results in a higher ignition voltage and also a significantly higher ignition energy for the high-pressure discharge lamp 5. The high-pressure discharge lamp 5 can thus be ignited better and safer. Of course, the mode of operation according to the invention with a resonance peaking can also be used with a known spiral pulse generator of the prior art.
Zweite AusführungsformSecond embodiment
[25] Die zweite Ausführungsform, die in Fig. 2b gezeigt ist, unterscheidet sich von der ersten Ausführungsform lediglich durch die Form des Spiral-Puls-Generators. Hier hat der Spiral-Puls-Generator eine Form, dessen Umriss einer Kurve mit zwei gegenüberliegenden parallelen Gera- den entspricht, die an zwei gegenüberliegenden Punkten der Gerade jeweils durch einen Halbkreis verbunden wer- den. Diese Form ist z.B. als Grundriss des Circus Maximus in Rom bekannt. Der Spiral-Puls-Generator hat hier gerade Segmente, dadurch lässt sich seine Exzentrizität, also sein Verhältnis der Länge 1 zur Breite b weiter steigern; die Exzentrizität des Spiral-Puls-Generators liegt auch hier zwischen 1 und 10, besonders bevorzugt zwischen 1,5 und 3.[25] The second embodiment shown in Fig. 2b differs from the first embodiment only in the shape of the spiral pulse generator. Here, the spiral pulse generator has a shape whose contour corresponds to a curve with two opposite parallel lines, which are connected in each case by a semicircle at two opposite points of the straight line. the. This form is known, for example, as the floor plan of the Circus Maximus in Rome. The spiral pulse generator here has straight segments, this can be its eccentricity, ie its ratio of the length 1 to the width b further increase; the eccentricity of the spiral pulse generator is also between 1 and 10, more preferably between 1.5 and 3.
[26] Mit solch einem Spiral-Puls-Generator 1 und einer entsprechenden Auslegung der Beschaltung und des elektro- nische Betriebsgerätes gemäß Fig. 4 lässt sich eine Hochdruckentladungslampe 5 exzellent starten. Im Folgenden soll eine Beispielhafte Auslegung angegeben werden, die eine Konfiguration bestehend aus einer erfindungsgemäßen Hochdruckentladungslampe 5 mit dem erfindungsgemäßen Spi- ral-Puls-Generator 1 haben könnte. Der erfindungsgemäße Spiral-Puls-Generator weist dabei eine Kapazität von etwa 18OnF auf. Um ein gutes Resonanzverhalten zu gewährleisten ist eine Güte von 10 für den Spiral-Puls-Generator 1 notwendig. Der Leitungs- und Ladewiderstand 52 hat einen Widerstandswert von etwa 5Ω. Die (in Fig. 4 nicht gezeigte) Drossel des elektronischen Betriebsgerätes 20 weist einen Induktivitätswert von etwa 0,45mH auf. Damit ergibt sich eine Resonanzfrequenz des Resonanzkreises von etwa 17,7kHz. Wenn das elektronische Betriebsgerät eine Aus- gangsspannung von 200V aufweist, liegt bei dieser Frequenz eine Spannung von ca. 2000V am Spiral-Puls- Generator 1 an. Die Spannung am Spiral-Puls-Generator wird gegenüber der Ausgangsspannung des elektronischen Betriebsgerätes also verzehnfacht. Als Ausgangsspannung des elektronischen Betriebsgerätes wird hier die Spannung angesehen, die das elektronische Betriebsgerät vor der Zündung an die Lampe abgibt. Normalerweise wird zwischen elektronischem Betriebsgerät 20 und Hochdruckentladungslampe 5 noch ein Zündgerät angeordnet, dass aus den 200V Ausgangsspannung des Betriebsgerätes noch eine Zündspan- nung von 2-2,5 kV für die kaltzündung der Hochdruckentladungslampe generiert. Dies ist bei der erfindungsgemäßen Hochdruckentladungslampe nicht mehr notwendig, da das Zündgerät in Form des beschalteten Spiral-Puls-Generators 1 schon in der Lampe integriert ist. Dadurch, dass der erfindungsgemäße Spiral-Puls-Generator mit seiner Exzentrizität aus der Ladespannung eine hohe Zündspannung im zweistelligen kV-Bereich generieren kann, ist es möglich, eine heißwiederzündfähige Hochdruckentladungslampe herzustellen, die direkt an ein lediglich leicht angepasstes elektronisches Betriebsgerät angeschlossen werden kann. [26] With such a spiral pulse generator 1 and a corresponding design of the circuit and of the electronic operating device according to FIG. 4, a high-pressure discharge lamp 5 can be started excellently. In the following, an exemplary design will be given, which could have a configuration consisting of a high-pressure discharge lamp 5 according to the invention with the spiral pulse generator 1 according to the invention. The spiral pulse generator according to the invention has a capacity of about 18OnF. In order to ensure a good resonance behavior, a quality of 10 is necessary for the spiral pulse generator 1. The conduction and charging resistor 52 has a resistance of about 5Ω. The throttle (not shown in FIG. 4) of the electronic operating device 20 has an inductance value of approximately 0.45 mH. This results in a resonant frequency of the resonant circuit of about 17.7 kHz. If the electronic operating device has an output voltage of 200V, a voltage of approx. 2000V is applied to the spiral pulse generator 1 at this frequency. The voltage at the spiral pulse generator is thus increased tenfold compared with the output voltage of the electronic operating device. As the output voltage of the electronic control gear here the voltage is considered, the electronic control gear before the Ignition to the lamp gives. Normally, between the electronic control gear 20 and the high-pressure discharge lamp 5, an ignition device is arranged which generates a starting voltage of 2-2.5 kV for the cold ignition of the high-pressure discharge lamp from the 200V output voltage of the operating device. This is no longer necessary in the case of the high-pressure discharge lamp according to the invention since the ignitor in the form of the wired spiral pulse generator 1 is already integrated in the lamp. Because the spiral pulse generator according to the invention can generate a high ignition voltage in the two-digit kV range with its eccentricity from the charging voltage, it is possible to produce a high-pressure discharge lamp which can be directly connected to a merely slightly adapted electronic operating device.

Claims

Ansprüche claims
1. Hochspannungsimpulsgenerator auf der Basis eines Spiral-Puls-Generators, wobei der Spiral-Puls-Generator als LTCC-Bauteil ausgeführt ist und aus mindestens zwei keramischen- und mindestens zwei elektrisch lei- tenden Schichten gewickelt ist, dadurch gekennzeichnet, dass der Hochspannungsimpulsgenerator in ein zylindrisches Volumen V=d2*π*3*d einbringbar ist, dessen Länge dreimal so lang ist wie der Durchmesser des Volumens, und das Volumen des Hochspannungsimpulsge- nerators größer ist als ein Drittel des zylindrischen Volumens .1. High-voltage pulse generator based on a spiral pulse generator, wherein the spiral pulse generator is designed as LTCC component and is wound from at least two ceramic and at least two electrically conductive layers, characterized in that the high voltage pulse generator in a cylindrical volume V = d 2 * π * 3 * d can be introduced whose length is three times as long as the diameter of the volume and the volume of the high-voltage pulse generator is greater than one third of the cylindrical volume.
2. Hochspannungsimpulsgenerator nach Anspruch 1, dadurch gekennzeichnet, dass der Hochspannungsimpulsgenerator eine von der Kreisform abweichende Hohlzylindrische Form aufweist.2. High-voltage pulse generator according to claim 1, characterized in that the high-voltage pulse generator has a deviating from the circular hollow cylindrical shape.
3. Hochspannungsimpulsgenerator nach Anspruch 2, dadurch gekennzeichnet, dass der Umriss des Hochspannungsimpulsgenerators einer geschlossenen von der Kreisform abweichenden Kurve entspricht.3. High-voltage pulse generator according to claim 2, characterized in that the outline of the high-voltage pulse generator corresponds to a closed deviating from the circular curve.
4. Hochspannungsimpulsgenerator nach Anspruch 3, dadurch gekennzeichnet, dass der Umriss des Hochspannungsimpulsgenerators eine ovale Form aufweist.4. High-voltage pulse generator according to claim 3, characterized in that the outline of the high voltage pulse generator has an oval shape.
5. Hochspannungsimpulsgenerator nach Anspruch 4, dadurch gekennzeichnet, dass die Seitenansicht des Hochspan- nungsimpulsgenerators der Form eines ovalen Rings entspricht . 5. High-voltage pulse generator according to claim 4, characterized in that the side view of the high-voltage pulse generator corresponds to the shape of an oval ring.
6. Hochspannungsimpulsgenerator nach Anspruch 3, dadurch gekennzeichnet, dass der Umriss des Hochspannungsimpulsgenerators einer Kurve mit zwei gegenüberliegenden parallelen Geraden entspricht, die an zwei gege- nüberliegenden Punkten der Gerade jeweils durch einen Halbkreis verbunden werden.6. High-voltage pulse generator according to claim 3, characterized in that the outline of the high-voltage pulse generator corresponds to a curve having two opposite parallel straight lines, which are connected at two opposite points of the straight line in each case by a semicircle.
7. Hochspannungsimpulsgenerator nach Anspruch 6, dadurch gekennzeichnet, dass die Seitenansicht des Hochspannungsimpulsgenerators der Form eines Rings ent- spricht, dessen Umriss zwei gegenüberliegenden parallelen Geraden entspricht, die an zwei gegenüberliegenden Punkten der Gerade jeweils durch einen Halbkreis verbunden werden.7. High-voltage pulse generator according to claim 6, characterized in that the side view of the high voltage pulse generator corresponds to the shape of a ring whose outline corresponds to two opposite parallel straight lines, which are connected at two opposite points of the straight line in each case by a semicircle.
8. Hochspannungsimpulsgenerator nach einem der vorherge- henden Ansprüche, dadurch gekennzeichnet, dass seine8. High-voltage pulse generator according to one of the preceding claims, characterized in that its
Exzentrizität zwischen 1 und 10 liegt.Eccentricity is between 1 and 10.
9. Hochspannungsimpulsgenerator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass seine Exzentrizität zwischen 1,5 und 3 liegt.9. High-voltage pulse generator according to one of the preceding claims, characterized in that its eccentricity is between 1.5 and 3.
10. Hochdruckentladungslampe (5) mit einem Rohrförmigen Außenkolben, dadurch gekennzeichnet, dass der Außenkolben der Hochdruckentladungslampe (5) einen Hochspannungsimpulsgenerator (1) nach einem oder mehreren der Ansprüche 1-9 aufweist.10. High-pressure discharge lamp (5) with a tubular outer bulb, characterized in that the outer bulb of the high-pressure discharge lamp (5) comprises a high voltage pulse generator (1) according to one or more of claims 1-9.
11. Hochdruckentladungslampe nach Anspruch 10, dadurch gekennzeichnet, dass der Außenkolben einen Innendurchmesser von 18-25 mm aufweist. 11. High-pressure discharge lamp according to claim 10, characterized in that the outer bulb has an inner diameter of 18-25 mm.
12. Hochdruckentladungslampe nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, dass die Hochdruckentladungslampe (5) weiterhin eine Beschaltung (51, 52) des Spiral-Puls-Generators (1) aufweist, um die Ladespannung des Spiral-Puls-Generators (1) mittels einer Resonanzüberhöhung erzeugen zu können.12. High-pressure discharge lamp according to one of claims 10 or 11, characterized in that the high-pressure discharge lamp (5) further comprises a circuit (51, 52) of the spiral pulse generator (1) to the charging voltage of the spiral pulse generator (1 ) to produce by means of a resonance peak.
13. Hochdruckentladungslampe nach Anspruch 12, dadurch gekennzeichnet, dass die Beschaltung (51, 52) im Lampensockel untergebracht ist.13. High-pressure discharge lamp according to claim 12, characterized in that the circuit (51, 52) is accommodated in the lamp base.
14. Hochdruckentladungslampe nach einem der Ansprüche 10- 12, dadurch gekennzeichnet, dass die Beschaltung (51, 52) mit dem Spiral-Puls-Generator (1) im Außenkolben der Hochdruckentladungslampe (5) untergebracht ist. 14. High-pressure discharge lamp according to one of claims 10- 12, characterized in that the wiring (51, 52) with the spiral pulse generator (1) in the outer bulb of the high-pressure discharge lamp (5) is housed.
EP09780713A 2008-08-06 2009-07-16 High-voltage pulse generator and high-pressure discharge lamp having a high-voltage pulse generator Not-in-force EP2311300B1 (en)

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DE102008036611A DE102008036611A1 (en) 2008-08-06 2008-08-06 High voltage pulse generator and high pressure discharge lamp with a high voltage pulse generator
PCT/EP2009/059156 WO2010015498A1 (en) 2008-08-06 2009-07-16 High-voltage pulse generator and high-pressure discharge lamp having a high-voltage pulse generator

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