EP0933976A2 - Device for igniting a high pressure discharge lamp in a vehicle - Google Patents
Device for igniting a high pressure discharge lamp in a vehicle Download PDFInfo
- Publication number
- EP0933976A2 EP0933976A2 EP99101908A EP99101908A EP0933976A2 EP 0933976 A2 EP0933976 A2 EP 0933976A2 EP 99101908 A EP99101908 A EP 99101908A EP 99101908 A EP99101908 A EP 99101908A EP 0933976 A2 EP0933976 A2 EP 0933976A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- ignition
- discharge lamp
- capacitor
- gas discharge
- pressure gas
- 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
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 16
- 238000011084 recovery Methods 0.000 abstract 1
- 238000010304 firing Methods 0.000 description 7
- 230000010355 oscillation Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/02—Details
- H05B41/04—Starting switches
- H05B41/042—Starting switches using semiconductor devices
Definitions
- the invention relates to a device for igniting a High-pressure gas discharge lamp in a motor vehicle with at least one Ignition transformer, with at least one ignition capacitor and with one Switching element, which with the at least one ignition capacitor electrically connects the primary winding of the at least one ignition transformer for Generation of one of the operating voltage of the high pressure gas discharge lamp superimposed ignition voltage.
- the problem with such a superimposed ignition device is that both the primary winding as well as the secondary winding of the ignition transformer together with capacitances in the primary circuit (especially the ignition capacitor) and in the secondary circuit (parasitic capacitances, interference suppression capacitors etc.) in each case form electrical resonant circuits over the at least one Ignition transformer are magnetically coupled.
- the ignition energy is generated from the primary and secondary vibrations Ignition capacitor during the ignition process, at least partially, several times transmitted back and forth between the primary and the secondary circuit.
- the ignition energy from the primary circuit arrives in several pulses the high pressure gas discharge lamp. It is particularly disadvantageous that the Lamp current has zero crossings, so that the High pressure gas discharge lamp again immediately after an ignition pulse goes out.
- B. at Relighting a hot high pressure gas discharge lamp is a reliable one Ignition no longer guaranteed.
- the at least one Ignition capacitor a free-wheeling diode is connected in parallel.
- This Inexpensive freewheeling diode is a backward energy exchange from Prevents secondary circuit in the primary circuit and thus an oscillation of the Ignition current safely suppressed by the high pressure gas discharge lamp.
- a particular advantage of the measure according to the invention is that it is very various types of ignition devices is suitable, and in particular for versions with one or more Ignition transformers and / or with one or more ignition capacitors.
- the two ignition devices shown in Figures 1 and 2 have two ignition transformers each. Since the one to be generated on the secondary side Ignition voltage distributed to both ignition transformers and thus to each of the Secondary windings only half the ignition voltage occurs, this can Ignition transformers in terms of their insulation particularly simple and small-scale.
- the ignition transformers can also be used in this way be designed so that in the electrical leads of High-pressure gas discharge lamp inserted secondary windings for filtering high-frequency interference pulses are suitable.
- the high pressure gas discharge lamp (GEL) is connected via two connecting lines (1, 2) connected to a control unit, not shown, in each Connection line (1, 2) each the secondary winding of an ignition transformer (ZT1, ZT2) is switched.
- V varistor
- C capacitor
- the primary windings of the ignition transformers (ZT1, ZT2) are (zünd C, C zünd1, C zünd2) with a ( Figure 2) or two ( Figure 1) firing capacitors connected, by means of a Schalffunkenumble (FS) as a switching element in the primary winding of the ignition transformers ( ZT1, ZT2) can be discharged.
- each ignition transformer (ZT1, ZT2) is associated with its own ignition capacitor (C zünd1, C zünd2), whereas in the Figure 1, the charge of a single ignition capacitor (C zünd) on both ignition transformers (ZT1, ZT2 ) is divided.
- An acceleration capacitor (C B ) is connected in parallel to the switching spark gap (FS), which accelerates the gas discharge of the switching spark gap, whereby the ignition voltages generated on the secondary side reach higher values.
- the Schalffunkenrange discharges the / the firing capacitors (C zünd, C zünd1, C zünd2) in the primary side windings of the ignition transformers (ZT1, ZT2).
- the ignition transformers (ZT1, ZT2) are switched so that the secondary ignition voltages add up.
- the ignition voltage is superimposed on the open circuit voltage fed into the connecting lines (1, 2) by the control unit and ignites the high pressure gas discharge lamp.
- the primary windings of the ignition transformers (ZT1, ZT2) act as inductors, which block both the common-mode and the push-pull faults of the high-pressure gas discharge lamp (GEL).
- the lamp capacitor (C L ) parallel to the high-pressure gas discharge lamp (GEL) also reduces the lamp faults during operation and also ensures that the two ignition voltages are synchronized and thus ensure that the phases are added correctly.
- the problem underlying the invention is that the inductors of the ignition transformer windings both on the primary side and on the secondary side form resonant circuits together with different capacities.
- Is in the primary circuit / these are the capacitance (s) of the or of the firing capacitors (C zünd, C zünd1, C zünd2), since the speed-up capacitor (C B) is short-circuited during the ignition by the Schalffunkenumble (FS).
- the lamp capacitor (C L ) or the capacitor (C) provided for interference suppression together with the secondary windings of the ignition transformers (ZT1, ZT2) form oscillatory arrangements.
- a freewheeling diode (D) (zünd C) parallel to the ignition capacitor, or in each case one freewheeling diode (D1, D2) to the firing capacitors (C zünd1, C zünd2) prevents an oscillation of the ignition current in parallel, because unused ignition energy not from the secondary circuit in the primary circuit can be re-transmitted, since the free-wheeling diode (s) (D, D1, D2), a recharging of the ignition capacitor (C zünd) or the firing capacitors (C zünd1, C zünd2) prevented by the back transmitted ignition energy.
- the ignition current in the secondary circuit passes uniformly into the operating current.
- GEL high-pressure gas discharge lamp
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
Description
Die Erfindung betrifft eine Einrichtung zum Zünden einer Hochdruckgasentladungslampe in einem Kraftfahrzeug mit mindestens einem Zündtransformator, mit mindestens einem Zündkondensator und mit einem Schaltelement, welches den mindestens einen Zündkondensator elektrisch mit der Primärwicklung des mindestens einen Zündtransformators verbindet, zur Erzeugung einer der Betriebsspannung der Hochdruckgasentladungslampe zu überlagernden Zündspannung.The invention relates to a device for igniting a High-pressure gas discharge lamp in a motor vehicle with at least one Ignition transformer, with at least one ignition capacitor and with one Switching element, which with the at least one ignition capacitor electrically connects the primary winding of the at least one ignition transformer for Generation of one of the operating voltage of the high pressure gas discharge lamp superimposed ignition voltage.
Problematisch an einer solchen Überlagerungszündeinrichtung ist, daß sowohl die Primärwicklung als auch die Sekundärwicklung des Zündtransformators zusammen mit Kapazitäten im Primärkreis (insbesondere dem Zündkondensator) und im Sekundärkreis (parasitäre Kapazitäten, Entstörkondensatoren etc.) jeweils elektrische Schwingkreise ausbilden, die über den mindestens einen Zündtransformator magnetisch miteinander verkoppelt sind.The problem with such a superimposed ignition device is that both the primary winding as well as the secondary winding of the ignition transformer together with capacitances in the primary circuit (especially the ignition capacitor) and in the secondary circuit (parasitic capacitances, interference suppression capacitors etc.) in each case form electrical resonant circuits over the at least one Ignition transformer are magnetically coupled.
Durch primär- und sekundärseitige Schwingungen wird die Zündenergie aus dem Zündkondensator während des Zündvorganges, zumindest teilweise, mehrfach zwischen dem Primär- und dem Sekundärkreis hin und wieder zurückübertragen. Hierdurch gelangt die Zündenergie aus dem Primärkreis in mehreren Impulsen an die Hochdruckgasentladungslampe. Besonders nachteilig ist, daß hierbei der Lampenstrom Null-Durchgänge aufweist, so daß die Hochdruckgasentladungslampe unmittelbar nach einem Zündimpuls wieder erlischt. Besonders unter erschwerten Bedingungen, wie z. B. beim Wiederzünden einer heißen Hochdruckgasentladungslampe, ist ein zuverlässiges Zünden nicht mehr gewährleistet.The ignition energy is generated from the primary and secondary vibrations Ignition capacitor during the ignition process, at least partially, several times transmitted back and forth between the primary and the secondary circuit. As a result, the ignition energy from the primary circuit arrives in several pulses the high pressure gas discharge lamp. It is particularly disadvantageous that the Lamp current has zero crossings, so that the High pressure gas discharge lamp again immediately after an ignition pulse goes out. Especially under difficult conditions, such as B. at Relighting a hot high pressure gas discharge lamp is a reliable one Ignition no longer guaranteed.
Es ist daher die Aufgabe der Erfindung, eine Einrichtung zum Zünden einer Hochdruckgasentladungslampe in einem Kraftfahrzeug zu schaffen, bei der ein Schwingen der Zündenergie zwischen dem Primärkreis und dem Sekundärkreis des mindestens einen Zündtransformators auf einfache und kostengünstige Weise verhindert wird und die gesamte Zündenergie in einem einzigen Zündimpuls an die Hochdruckgasentladungslampe gelangt. It is therefore the object of the invention to provide a device for igniting a To create high pressure gas discharge lamp in a motor vehicle, in which a Oscillation of the ignition energy between the primary circuit and the secondary circuit of the at least one ignition transformer on simple and inexpensive Way is prevented and all the ignition energy in one Ignition pulse arrives at the high pressure gas discharge lamp.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß dem mindestens einen Zündkondensator eine Freilaufdiode parallel geschaltet ist. Durch diese kostengünstige Freilaufdiode wird ein rückwärtiger Energieaustausch vom Sekundärkreis in den Primärkreis verhindert und somit ein Schwingen des Zündstromes durch die Hochdruckgasentladungslampe sicher unterdrückt.This object is achieved in that the at least one Ignition capacitor a free-wheeling diode is connected in parallel. Through this Inexpensive freewheeling diode is a backward energy exchange from Prevents secondary circuit in the primary circuit and thus an oscillation of the Ignition current safely suppressed by the high pressure gas discharge lamp.
Da die Zündenergie somit in einem einzigen energiereichen Zündimpuls an die Hochdruckgasentladungslampe gelangt und der Lampenstrom keine Null-Durchgänge durchläuft, ist ein zuverlässiges Zünden der Hochdruckgasentladungslampe gewährleistet.Since the ignition energy is thus sent to the in a single high-energy ignition pulse High pressure gas discharge lamp arrives and the lamp current none Going through zero crossings is a reliable ignition of the High pressure gas discharge lamp guaranteed.
Besonders vorteilhaft an der erfindungsgemäßen Maßnahme ist, daß sie für sehr verschiedenartige Ausführungsformen von Zündeinrichtungen geeignet ist, und zwar insbesondere auch für Ausführungen mit einem oder auch mehreren Zündtransformatoren und/oder mit einem oder mehreren Zündkondensatoren.A particular advantage of the measure according to the invention is that it is very various types of ignition devices is suitable, and in particular for versions with one or more Ignition transformers and / or with one or more ignition capacitors.
Im folgenden soll die erfindungsgemäße Einrichtung anhand von zwei in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert werden.In the following, the device according to the invention is based on two in the Drawing illustrated embodiments are explained in more detail.
Es zeigen
Die beiden in den Figuren 1 und 2 dargestellten Zündeinrichtungen weisen jeweils zwei Zündtransformatoren auf. Da sich die sekundärseitig zu erzeugende Zündspannung auf beide Zündtransformatoren verteilt und somit an jeder der Sekundärwicklungen nur die halbe Zündspannung auftritt, können diese Zündtransformatoren hinsichtlich ihrer Isolierung besonders einfach und kleinbauend ausgeführt werden. Zudem können die Zündtransformatoren derart ausgebildet sein, daß die in die elektrischen Zuleitungen der Hochdruckgasentladungslampe eingefügten Sekundärwicklungen zur Ausfilterung hochfrequenter Störimpulse geeignet sind. The two ignition devices shown in Figures 1 and 2 have two ignition transformers each. Since the one to be generated on the secondary side Ignition voltage distributed to both ignition transformers and thus to each of the Secondary windings only half the ignition voltage occurs, this can Ignition transformers in terms of their insulation particularly simple and small-scale. The ignition transformers can also be used in this way be designed so that in the electrical leads of High-pressure gas discharge lamp inserted secondary windings for filtering high-frequency interference pulses are suitable.
Die Hochdruckgasentladungslampe (GEL) ist über zwei Verbindungsleitungen (1, 2) mit einem nicht dargestellten Steuergerät verbunden, wobei in jede Verbindungsleitung (1, 2) jeweils die Sekundärwicklung eines Zündtransformators (ZT1, ZT2) geschaltet ist.The high pressure gas discharge lamp (GEL) is connected via two connecting lines (1, 2) connected to a control unit, not shown, in each Connection line (1, 2) each the secondary winding of an ignition transformer (ZT1, ZT2) is switched.
Zum Schutz des Steuergerätes vor der rückwirkenden Zündspannung sind die jeweils steuergeräteseitigen Anschlüsse der beiden Sekundärwicklungen mittels eines Varistors (V) und eines Kondensators (C) als spannungsbegrenzende Mittel miteinander verbunden.To protect the control unit from the retroactive ignition voltage control unit-side connections of the two secondary windings by means of a varistor (V) and a capacitor (C) as voltage-limiting means connected with each other.
Die Primärwicklungen der Zündtransformatoren (ZT1, ZT2) sind mit einem (Figur 2) oder zwei (Figur 1) Zündkondensatoren (Czünd, Czünd1, Czünd2) verbunden, die mittels einer Schalffunkenstrecke (FS) als Schaltelement in die Primärwicklung der Zündtransformatoren (ZT1, ZT2) entladen werden. Hierbei ist bei der in der Figur 2 dargestellten Einrichtung jedem Zündtransformator (ZT1, ZT2) ein eigener Zündkondensator (Czünd1, Czünd2) zugeordnet, wohingegen bei der Figur 1 die Ladung eines einzigen Zündkondensators (Czünd) auf beide Zündtransformatoren (ZT1, ZT2) aufgeteilt wird.The primary windings of the ignition transformers (ZT1, ZT2) are (zünd C, C zünd1, C zünd2) with a (Figure 2) or two (Figure 1) firing capacitors connected, by means of a Schalffunkenstrecke (FS) as a switching element in the primary winding of the ignition transformers ( ZT1, ZT2) can be discharged. Here, in the embodiment shown in the Figure 2 device is each ignition transformer (ZT1, ZT2) is associated with its own ignition capacitor (C zünd1, C zünd2), whereas in the Figure 1, the charge of a single ignition capacitor (C zünd) on both ignition transformers (ZT1, ZT2 ) is divided.
Der Schalffunkenstrecke (FS) ist jeweils ein Beschleunigungskondensator (CB) parallel geschaltet, welcher die Gasentladung der Schalffunkenstrecke beschleunigt ablaufen läßt, wodurch die sekundärseitig erzeugten Zündspannungen höhere Werte erreichen.An acceleration capacitor (C B ) is connected in parallel to the switching spark gap (FS), which accelerates the gas discharge of the switching spark gap, whereby the ignition voltages generated on the secondary side reach higher values.
Die Funktionsweise der dargestellten Einrichtungen ist folgende:The functions of the devices shown are as follows:
Über die Verbindungsleitungen (3, 4) und die Widerstände (R1, R2) lädt das (nicht dargestellte) Steuergerät den bzw. die Zündkondensatoren (Czünd, Czünd1, Czünd2) bis auf einen Spannungswert auf, der oberhalb der Zündspannung der Schalffunkenstrecke (FS) liegt.Via the connecting lines (3, 4) and the resistors (R1, R2) that loads (not shown) control unit which, or the firing capacitors (C zünd, C zünd1, C zünd2) to a voltage value which is above the firing voltage of the Schalffunkenstrecke (FS) lies.
Mittels einer Gasentladung entlädt die Schalffunkenstrecke (FS) den/die Zündkondensatoren (Czünd, Czünd1, Czünd2) in die primärseitigen Wicklungen der Zündtransformatoren (ZT1, ZT2).By means of a gas discharge, the Schalffunkenstrecke (FS) discharges the / the firing capacitors (C zünd, C zünd1, C zünd2) in the primary side windings of the ignition transformers (ZT1, ZT2).
Die Zündtransformatoren (ZT1, ZT2) sind so geschaltet, daß sich die sekundärseitigen Zündspannungen addieren. Die Zündspannung ist der vom Steuergerät in die Verbindungsleitungen (1, 2) eingespeisten Leerlaufspannung überlagert und zündet die Hochdruckgasentladungslampe. Nach dem Zünden der Hochdruckgasentladungslampe (GEL) wirken die Primärwicklungen der Zündtransformatoren (ZT1, ZT2) als Induktivitäten, welche sowohl die Gleichtakt-als auch die Gegentaktstörungen der Hochdruckgasentladungslampe (GEL) abblocken. Der Lampenkondensator (CL) parallel zur Hochdruckgasentladungslampe (GEL) reduziert zudem ursächlich die Lampenstörungen während des Betriebs und sorgt zudem für eine Synchronisation der beiden Zündspannungen und damit für eine phasenrichtige Addition.The ignition transformers (ZT1, ZT2) are switched so that the secondary ignition voltages add up. The ignition voltage is superimposed on the open circuit voltage fed into the connecting lines (1, 2) by the control unit and ignites the high pressure gas discharge lamp. After the high-pressure gas discharge lamp (GEL) has been ignited, the primary windings of the ignition transformers (ZT1, ZT2) act as inductors, which block both the common-mode and the push-pull faults of the high-pressure gas discharge lamp (GEL). The lamp capacitor (C L ) parallel to the high-pressure gas discharge lamp (GEL) also reduces the lamp faults during operation and also ensures that the two ignition voltages are synchronized and thus ensure that the phases are added correctly.
Das der Erfindung zugrundeliegende Problem liegt darin, daß die Induktivitäten der Zündtransformatorwicklungen sowohl primärseitig als auch sekundärseitig zusammen mit verschiedenen Kapazitäten Schwingkreise ausbilden.The problem underlying the invention is that the inductors of the ignition transformer windings both on the primary side and on the secondary side form resonant circuits together with different capacities.
Im Primärkreis ist/sind dies die Kapazität(en) des oder der Zündkondensatoren (Czünd, Czünd1, Czünd2), da der Beschleunigungskondensator (CB) während des Zündvorgangs durch die Schalffunkenstrecke (FS) kurzgeschlossen ist.Is in the primary circuit / these are the capacitance (s) of the or of the firing capacitors (C zünd, C zünd1, C zünd2), since the speed-up capacitor (C B) is short-circuited during the ignition by the Schalffunkenstrecke (FS).
Im Sekundärkreis bilden der Lampenkondensator (CL) beziehungsweise der zur Entstörung vorgesehene Kondensator (C) zusammen mit den Sekundärwicklungen der Zündtransformatoren (ZT1, ZT2) schwingungsfähige Anordnungen.In the secondary circuit, the lamp capacitor (C L ) or the capacitor (C) provided for interference suppression together with the secondary windings of the ignition transformers (ZT1, ZT2) form oscillatory arrangements.
Da die primär- und sekundärseitigen Schwingkreise durch die Zündtransformatoren (ZT1, ZT2) magnetisch gekoppelt sind, wird (entsprechend dem mechanischen Analogon der gekoppelten Pendel) die Zündenergie vom Primärkreis in den Sekundärkreis und wieder zurück übertragen.Since the primary and secondary resonant circuits through the Ignition transformers (ZT1, ZT2) are magnetically coupled (accordingly the mechanical analogue of the coupled pendulum) the ignition energy from Transfer the primary circuit to the secondary circuit and back again.
Die erfindungsgemäße Anordnung einer Freilaufdiode (D) parallel zum Zündkondensator (Czünd) beziehungsweise jeweils einer Freilaufdiode (D1, D2) parallel zu den Zündkondensatoren (Czünd1, Czünd2) verhindert ein Schwingen des Zündstromes, weil ungenutzte Zündenergie nicht mehr aus dem Sekundärkreis in den Primärkreis zurückübertragen werden kann, da die Freilaufdiode(n) (D, D1, D2) ein Wiederaufladen des Zündkondensators (Czünd) beziehungsweise der Zündkondensatoren (Czünd1, Czünd2) durch die zurückübertragene Zündenergie verhindert. Im Sekundärkreis geht hierdurch der Zündstrom gleichförmig in den Betriebsstrom über. Zudem gelangt nur ein einziger und energiereicher Zündimpuls an die Hochdruckgasentladungslampe (GEL), wodurch ein zuverlässiges Zünden auch unter kritischen Bedingungen, insbesondere beim Wiederzünden einer heißen Hochdruckgasentladungslampe, erzielt wird.The inventive arrangement a freewheeling diode (D) (zünd C) parallel to the ignition capacitor, or in each case one freewheeling diode (D1, D2) to the firing capacitors (C zünd1, C zünd2) prevents an oscillation of the ignition current in parallel, because unused ignition energy not from the secondary circuit in the primary circuit can be re-transmitted, since the free-wheeling diode (s) (D, D1, D2), a recharging of the ignition capacitor (C zünd) or the firing capacitors (C zünd1, C zünd2) prevented by the back transmitted ignition energy. As a result, the ignition current in the secondary circuit passes uniformly into the operating current. In addition, only a single, high-energy ignition pulse reaches the high-pressure gas discharge lamp (GEL), as a result of which reliable ignition is achieved even under critical conditions, in particular when a hot high-pressure gas discharge lamp is re-ignited.
Es ist anzumerken, daß die erfindungsgemäße Aufgabenstellung und Lösung auch auf Zündeinrichtungen mit nur einem Zündtransformator ohne weiteres übertragbar ist. It should be noted that the task and solution according to the invention even on ignition devices with just one ignition transformer is transferable.
Einrichtung zum Zünden einer Hochdruckgasentladungslampe in einem Kraftfahrzeug
- C
- Kondensator
- CB
- Beschleunigungskondensator
- CL
- Lampenkondensator
- Czünd, Czünd1, Czünd2
- Zündkondensatoren
- D, D1, D2
- Freilaufdioden
- FS
- Schaltelement (Schalffunkenstrecke)
- GEL
- Hochdruckgasentladungslampe
- R1, R2
- Widerstände
- V
- Varistor
- ZT1, ZT2
- Zündtransformatoren
- 1,2,3,4
- Verbindungsleitungen
- C.
- capacitor
- C B
- Acceleration capacitor
- C L
- Lamp capacitor
- C ignite , C ignite1 , C ignite2
- Ignition capacitors
- D, D1, D2
- Free wheeling diodes
- FS
- Switching element (switching spark gap)
- GEL
- High pressure gas discharge lamp
- R1, R2
- Resistances
- V
- Varistor
- ZT1, ZT2
- Ignition transformers
- 1,2,3,4
- Connecting lines
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19803854 | 1998-01-31 | ||
| DE19803854A DE19803854A1 (en) | 1998-01-31 | 1998-01-31 | Device for igniting a high-pressure gas discharge lamp in a motor vehicle |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0933976A2 true EP0933976A2 (en) | 1999-08-04 |
| EP0933976A3 EP0933976A3 (en) | 2000-03-29 |
| EP0933976B1 EP0933976B1 (en) | 2001-11-21 |
Family
ID=7856293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99101908A Expired - Lifetime EP0933976B1 (en) | 1998-01-31 | 1999-01-29 | Device for igniting a high pressure discharge lamp in a vehicle |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0933976B1 (en) |
| AT (1) | ATE209427T1 (en) |
| DE (2) | DE19803854A1 (en) |
| ES (1) | ES2168814T3 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10159112A1 (en) * | 2001-12-01 | 2003-06-18 | Hella Kg Hueck & Co | Ignition transformer for motor vehicle gas discharge lamp, has permanent magnet located in air-gap of annular core |
| WO2007138507A1 (en) * | 2006-05-31 | 2007-12-06 | Koninklijke Philips Electronics N.V. | Method and system for operating a gas discharge lamp |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7456583B2 (en) | 2006-09-05 | 2008-11-25 | General Electric Company | Electrical circuit with dual stage resonant circuit for igniting a gas discharge lamp |
| US7460379B2 (en) | 2006-09-05 | 2008-12-02 | General Electric Company | Electrical circuit with voltage multiplier for facilitating ignition of a gas discharge lamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0405715A1 (en) * | 1989-06-30 | 1991-01-02 | Hubbell Incorporated | Lamp starting circuit |
| EP0507396A2 (en) * | 1991-04-04 | 1992-10-07 | Koninklijke Philips Electronics N.V. | Circuit arrangement |
| DE4420182A1 (en) * | 1993-06-10 | 1994-12-15 | Matsushita Electric Works Ltd | Power supply device |
| WO1995028068A1 (en) * | 1994-04-06 | 1995-10-19 | Philips Electronics N.V. | Circuit arrangement |
| WO1999002018A1 (en) * | 1997-07-04 | 1999-01-14 | Koninklijke Philips Electronics N.V. | Circuit arrangement |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2904001C2 (en) * | 1977-09-30 | 1983-04-28 | Walter Bauch GmbH, 1000 Berlin | Ignitor and operating device for high pressure discharge lamps |
| US4890041A (en) * | 1988-03-10 | 1989-12-26 | Hubbell Incorporated | High wattage HID lamp circuit |
| DE4423275A1 (en) * | 1994-07-05 | 1996-01-11 | Bosch Gmbh Robert | Ignition device for gas discharge lamps, in particular for motor vehicle lights |
-
1998
- 1998-01-31 DE DE19803854A patent/DE19803854A1/en not_active Withdrawn
-
1999
- 1999-01-29 DE DE59900657T patent/DE59900657D1/en not_active Expired - Lifetime
- 1999-01-29 EP EP99101908A patent/EP0933976B1/en not_active Expired - Lifetime
- 1999-01-29 ES ES99101908T patent/ES2168814T3/en not_active Expired - Lifetime
- 1999-01-29 AT AT99101908T patent/ATE209427T1/en not_active IP Right Cessation
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0405715A1 (en) * | 1989-06-30 | 1991-01-02 | Hubbell Incorporated | Lamp starting circuit |
| EP0507396A2 (en) * | 1991-04-04 | 1992-10-07 | Koninklijke Philips Electronics N.V. | Circuit arrangement |
| DE4420182A1 (en) * | 1993-06-10 | 1994-12-15 | Matsushita Electric Works Ltd | Power supply device |
| WO1995028068A1 (en) * | 1994-04-06 | 1995-10-19 | Philips Electronics N.V. | Circuit arrangement |
| WO1999002018A1 (en) * | 1997-07-04 | 1999-01-14 | Koninklijke Philips Electronics N.V. | Circuit arrangement |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10159112A1 (en) * | 2001-12-01 | 2003-06-18 | Hella Kg Hueck & Co | Ignition transformer for motor vehicle gas discharge lamp, has permanent magnet located in air-gap of annular core |
| WO2007138507A1 (en) * | 2006-05-31 | 2007-12-06 | Koninklijke Philips Electronics N.V. | Method and system for operating a gas discharge lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2168814T3 (en) | 2002-06-16 |
| ATE209427T1 (en) | 2001-12-15 |
| EP0933976A3 (en) | 2000-03-29 |
| EP0933976B1 (en) | 2001-11-21 |
| DE59900657D1 (en) | 2002-02-21 |
| DE19803854A1 (en) | 1999-08-05 |
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