EP1100292B1 - Control circuit for high-pressure gas discharge lamp in a vehicule - Google Patents
Control circuit for high-pressure gas discharge lamp in a vehicule Download PDFInfo
- Publication number
- EP1100292B1 EP1100292B1 EP00124484A EP00124484A EP1100292B1 EP 1100292 B1 EP1100292 B1 EP 1100292B1 EP 00124484 A EP00124484 A EP 00124484A EP 00124484 A EP00124484 A EP 00124484A EP 1100292 B1 EP1100292 B1 EP 1100292B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lamp
- gas discharge
- pressure gas
- discharge lamp
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—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
- H05B41/292—Arrangements for protecting lamps or circuits against abnormal operating conditions
Definitions
- the invention relates to a circuit for operating an AC high-pressure gas discharge lamp for a motor vehicle, with a ballast, an ignition device, a symmetrical lamp filter and a high-pressure gas discharge lamp which is at least partially surrounded by a reflector, the symmetrical lamp filter being arranged between the high-pressure gas discharge lamp and the ignition circuit , with a filter capacity parallel to the high pressure gas discharge lamp and a choke in each of the connecting lines between this parallel circuit and the ignition circuit, and with two lamp supply lines in the input of the ignition circuit.
- a circuit is described in the unpublished German patent application DE 199 24 097.
- the most used high pressure gas discharge lamps in motor vehicles are asymmetrical in terms of their supply connections.
- the return wire forms a capacity of approx. 2 to 3 with the reflector pF; the reflector forms a similarly large capacity with the vehicle. glitches on the return wire are thus capacitive to the vehicle mass in the On-board electrical system is fed in and can only be filtered very poorly in the igniter.
- This object is achieved in that a capacitor between the reflector and one of the lamp supply lines is arranged.
- the only figure shows a ballast for a high pressure gas discharge lamp, as well as an igniter with integrated Lamp filter.
- the ballast controls and supplies both the high pressure gas discharge lamp (GDL) as well as the primary ignition circuit of the igniter.
- the ignitor is designed as an asymmetrical superimposed ignitor; this is the Secondary winding of the ignition transformer (ZTR) in one of the lamp leads connected.
- the igniter also has a symmetrical lamp filter, whereby the symmetrical lamp filter between the high pressure gas discharge lamp (GDL) and the superposition ignition is arranged and a filter capacitance (C1) in parallel to the high pressure gas discharge lamp (GDL) and one choke (L1, L2) in each of the supply lines to this parallel connection.
- the invention is based on the idea of the interference coupled into the reflector return the ignitor before it gets into the vehicle mass.
- This will a capacitor (C2) between the reflector and one of the lamp supply lines arranged at the entrance of the ignitor.
- the lamp supply line is preferably selected for this purpose, which during of ignition has the lower potential against vehicle mass.
- the filter capacitance C1 and the chokes L1 and L2 form this interference filter.
- the Capacitor (C2) should act as a Y capacitor (Y capacitors are standardized radio interference suppression capacitors with increased electrical and mechanical safety) be because he decouple the lamp operating voltage from the reflector and such should ensure adequate protection against accidental contact
Abstract
Description
Die Erfindung betrifft eine Schaltung zum Betreiben einer Wechselstrom-Hochdruckgasentladungslampe
für ein Kraftfahrzeug, mit einem Vorschaltgerät, einem
Zündgerät, einem symmetrischen Lampenfilter und einer Hochdruckgasentladungslampe,
die zumindest teilweise von einem Reflektor umgeben ist, wobei das
symmetrische Lampenfilter zwischen der Hochdruckgasentladungslampe und der
Zündschaltung angeordnet ist, mit einer Filterkapazität parallel zur Hochdruckgasentladungslampe
und je einer Drossel in den Verbindungsleitungen zwischen dieser
Parallelschaltung und der Zündschaltung, sowie mit zwei Lampenversorgungsleitungen
im Eingang der Zündschaltung.
Eine solche Schaltung ist in der nicht vorveröffentlichten deutschen Patentanmeldung
DE 199 24 097 beschrieben.The invention relates to a circuit for operating an AC high-pressure gas discharge lamp for a motor vehicle, with a ballast, an ignition device, a symmetrical lamp filter and a high-pressure gas discharge lamp which is at least partially surrounded by a reflector, the symmetrical lamp filter being arranged between the high-pressure gas discharge lamp and the ignition circuit , with a filter capacity parallel to the high pressure gas discharge lamp and a choke in each of the connecting lines between this parallel circuit and the ignition circuit, and with two lamp supply lines in the input of the ignition circuit.
Such a circuit is described in the unpublished German patent application DE 199 24 097.
Die in Kraftfahrzeugen meistverwendeten Hochdruckgasentladungslampen, die D1-und D2 - Lampen, sind bezüglich ihrer Versorgungsanschlüsse unsymmetrisch aufgebaut. Der Rückführdraht bildet mit dem Reflektor eine Kapazität von ca. 2 bis 3 pF; der Reflektor bildet mit dem Fahrzeug eine ähnlich große Kapazität. Störimpulse auf dem Rückführdraht werden somit kapazitiv über die Fahrzeugmasse in das Bordnetz eingespeist und können nur sehr schlecht im Zündgerät gefiltert werden.The most used high pressure gas discharge lamps in motor vehicles, the D1 and D2 lamps are asymmetrical in terms of their supply connections. The return wire forms a capacity of approx. 2 to 3 with the reflector pF; the reflector forms a similarly large capacity with the vehicle. glitches on the return wire are thus capacitive to the vehicle mass in the On-board electrical system is fed in and can only be filtered very poorly in the igniter.
Es ist die Aufgabe der Erfindung, die Einspeisung von Störimpulsen in die Fahrzeugmasse und das Bordnetz zu verhindern.It is the object of the invention to inject interference pulses into the vehicle mass and to prevent the electrical system.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass ein Kondensator zwischen dem Reflektor und einer der Lampenversorgungsleitungen angeordnet ist.This object is achieved in that a capacitor between the reflector and one of the lamp supply lines is arranged.
Im folgenden soll ein Ausführungsbeispiel der erfindungsgemäßen Schaltung anhand der Zeichnung näher erläutert werden. Die einzige Figur zeigt ein Vorschaltgerät für eine Hochdruckgasentladungslampe, sowie ein Zündgerät mit integriertem Lampenfilter. Das Vorschaltgerät steuert und versorgt sowohl die Hochdruckgasentladungslampe (GDL) als auch den primären Zündkreis des Zündgerätes. Das Zündgerät ist als ein asymmetrisches Überlagerungszündgerät ausgeführt; hierzu ist die Sekundärwicklung des Zündtransformators (ZTR) in eine der Lampenzuleitungen geschaltet. Das Zündgerät weist zudem ein symmetrisches Lampenfilter auf, wobei das symmetrische Lampenfilter zwischen der Hochdruckgasentladungslampe (GDL) und der Überlagerungszündung angeordnet ist und eine Filterkapazität (C1) parallel zur Hochdruckgasentladungslampe (GDL) und je eine Drossel (L1, L2) in den Zuführungsleitungen zu dieser Parallelschaltung aufweist.In the following, an embodiment of the circuit according to the invention will be described the drawing are explained in more detail. The only figure shows a ballast for a high pressure gas discharge lamp, as well as an igniter with integrated Lamp filter. The ballast controls and supplies both the high pressure gas discharge lamp (GDL) as well as the primary ignition circuit of the igniter. The ignitor is designed as an asymmetrical superimposed ignitor; this is the Secondary winding of the ignition transformer (ZTR) in one of the lamp leads connected. The igniter also has a symmetrical lamp filter, whereby the symmetrical lamp filter between the high pressure gas discharge lamp (GDL) and the superposition ignition is arranged and a filter capacitance (C1) in parallel to the high pressure gas discharge lamp (GDL) and one choke (L1, L2) in each of the supply lines to this parallel connection.
Die Erfindung basiert auf der Idee, die auf den Reflektor eingekoppelte Störung in das Zündgerät zurückzuleiten, bevor sie in die Fahrzeugmasse gelangt. Dazu wird ein Kondensator (C2) zwischen dem Reflektor und einer der Lampenversorgungsleitungen am Eingang des Zündgerätes angeordnet. Aus Gründen des Personenschutzes wird hierzu vorzugsweise die Lampenversorgungsleitung gewählt, welche während des Zündens das geringere Potential gegen Fahrzeugmasse aufweist. Das Ableiten der Störungen funktioniert nur, wenn unmittelbar vor der Hochdruckgasentladungslampe ein Entstörfilter angeordnet ist, denn sonst würde der Kondensator die Störungen des Rückführdrahtes direkt auf den Reflektor koppeln, anstatt sie abzuleiten. Die Filterkapazität C1 und die Drosseln L1 und L2 bilden dieses Entstörfilter. Der Kondensator (C2) sollte als Y-Kondensator (Y-Kondensatoren sind genormte Funkentstörkondenstoren mit erhöhter elektrischer und mechanischer Sicherheit) ausgeführt sein, weil er die Lampenbetriebsspannung vom Reflektor entkoppeln und so einen ausreichenden Berührschutz gewährleisten sollThe invention is based on the idea of the interference coupled into the reflector return the ignitor before it gets into the vehicle mass. This will a capacitor (C2) between the reflector and one of the lamp supply lines arranged at the entrance of the ignitor. For reasons of personal protection the lamp supply line is preferably selected for this purpose, which during of ignition has the lower potential against vehicle mass. Deriving The malfunctions only work if they are directly in front of the high pressure gas discharge lamp a noise filter is arranged, otherwise the capacitor would Couple disturbances of the return wire directly to the reflector instead of leading them away. The filter capacitance C1 and the chokes L1 and L2 form this interference filter. The Capacitor (C2) should act as a Y capacitor (Y capacitors are standardized radio interference suppression capacitors with increased electrical and mechanical safety) be because he decouple the lamp operating voltage from the reflector and such should ensure adequate protection against accidental contact
Es kann von besonderem Vorteil sein, wenn je ein Kondensator (C2, C3) zwischen dem Reflektor und den beiden Lampenversorgungsleitungen am Eingang der Zündschaltung angeordnet ist, da in diesem Fall auch keine Wechselspannung in auf den Reflektor eingekoppelt wird. It can be particularly advantageous if there is a capacitor (C2, C3) between each the reflector and the two lamp supply lines at the input of the ignition circuit is arranged, since in this case no AC voltage in the Reflector is coupled.
- C1C1
- Filterkapazitätfilter capacity
- C2, C3C2, C3
- Kondensatorencapacitors
- GDLGDL
- (Wechselstrom-) Hochdruckgasentladungslampe(AC) high pressure gas discharge lamp
- ZTRZTR
- Zündtransformatorignition transformer
- L1, L2L1, L2
- Drosselnthrottle
Claims (4)
- Circuit for driving an alternating current high pressure gas discharge lamp (GDL) for a motor vehicle, having a ballast device, an ignition device, a symmetrical lamp filter and a high pressure gas discharge lamp (GDL) which is at least partially surrounded by a reflector, whereby the symmetrical lamp filter is arranged between the high pressure gas discharge lamp (GDL) and the ignition circuit, with a filter capacitance (C1) in parallel with the high pressure gas discharge lamp (GDL) and a choke (L1, L2) in each of the connecting lines between this parallel circuit and the ignition circuit, as well as two lamp supply lines in the input of the ignition circuit, characterised in that a capacitor (C2 or C3) is arranged between the reflector and one of the lamp supply lines.
- Circuit according to Claim 1, characterised in that the capacitor (C2 or C3) is connected to the lamp supply line, that during ignition has the lower potential relative to the vehicle chassis earth.
- Circuit according to Claim 1, characterised in that the capacitor is designed as a Y-capacitor.
- Circuit according to Claim 1, characterised in that between the reflector and each of the two lamp supply lines, respectively, a capacitor (C2, C3) is arranged.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19954489 | 1999-11-12 | ||
| DE19954489A DE19954489A1 (en) | 1999-11-12 | 1999-11-12 | Circuit for operating an AC high-pressure gas discharge lamp for a motor vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1100292A1 EP1100292A1 (en) | 2001-05-16 |
| EP1100292B1 true EP1100292B1 (en) | 2002-08-07 |
Family
ID=7928829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00124484A Expired - Lifetime EP1100292B1 (en) | 1999-11-12 | 2000-11-09 | Control circuit for high-pressure gas discharge lamp in a vehicule |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6624581B1 (en) |
| EP (1) | EP1100292B1 (en) |
| AT (1) | ATE222045T1 (en) |
| DE (2) | DE19954489A1 (en) |
| ES (1) | ES2180494T3 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10116254A1 (en) * | 2001-03-31 | 2002-10-02 | Hella Kg Hueck & Co | Headlamp assembly for a high pressure gas discharge lamp in a motor vehicle |
| DE10330117A1 (en) * | 2003-07-03 | 2005-01-20 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Circuit arrangement for controlling a high-pressure discharge lamp |
| JP4293004B2 (en) * | 2004-02-04 | 2009-07-08 | 株式会社デンソー | Discharge lamp lighting device |
| CN101129097A (en) * | 2005-02-25 | 2008-02-20 | 皇家飞利浦电子股份有限公司 | Light source |
| ES2356260T3 (en) * | 2006-09-25 | 2011-04-06 | Osram Gesellschaft mit beschränkter Haftung | IMPROVEMENT OF EMC ELECTROMAGNETIC COMPATIBILITY THROUGH ABSORPTION IN LAMPS AND ELECTRICAL REACTORS. |
| CN101755490A (en) * | 2007-07-19 | 2010-06-23 | 皇家飞利浦电子股份有限公司 | Gas-discharge lighting system for motor vehicles |
| EP2189045B1 (en) * | 2007-09-12 | 2011-11-30 | Osram AG | Improved applicability of lamps with electronic ballast without a protective earth conductor |
| WO2010028679A1 (en) * | 2008-09-09 | 2010-03-18 | Osram Gesellschaft mit beschränkter Haftung | Circuit arrangement for supplying a lighting means, electronic ballast and lamp or luminaire |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE910C (en) | 1877-08-16 | O. HÄRTUNG & G. LENZ in Berlin | Rotary motor | |
| US4467247A (en) * | 1981-10-30 | 1984-08-21 | General Electric Company | High frequency fluorescent lamp circuit |
| DE4125478A1 (en) * | 1991-08-01 | 1993-02-04 | Bosch Gmbh Robert | HEADLIGHTS FOR MOTOR VEHICLES |
| DE4141587A1 (en) * | 1991-12-17 | 1993-06-24 | Bosch Gmbh Robert | Motor vehicle headlamp with conductive track around sleeve - is safeguarded by automatic disconnection of high=voltage supply to discharge lamp when sleeve is broken |
| DE4202872A1 (en) * | 1992-02-01 | 1993-08-05 | Bosch Gmbh Robert | HEADLIGHTS FOR MOTOR VEHICLES |
| JP2875129B2 (en) * | 1993-01-05 | 1999-03-24 | 三菱電機株式会社 | Vehicle discharge lamp lighting device |
| DE4310307B4 (en) * | 1993-03-30 | 2004-10-14 | Robert Bosch Gmbh | Headlights for vehicles |
| JPH09129379A (en) * | 1995-11-06 | 1997-05-16 | Koito Mfg Co Ltd | Discharge lamp lighting device |
| US5691577A (en) * | 1996-05-03 | 1997-11-25 | Smith; Steve | Reflector-pump network for preempting AC power supply harmonic distortion and for satiating the complex harmonic power demand of a rectifier |
| US6111359A (en) * | 1996-05-09 | 2000-08-29 | Philips Electronics North America Corporation | Integrated HID reflector lamp with HID arc tube in a pressed glass reflector retained in a shell housing a ballast |
| DE19924097A1 (en) | 1999-05-26 | 2000-11-30 | Hella Kg Hueck & Co | Circuit for operating an AC high-pressure gas discharge lamp for a motor vehicle |
-
1999
- 1999-11-12 DE DE19954489A patent/DE19954489A1/en not_active Withdrawn
-
2000
- 2000-11-09 AT AT00124484T patent/ATE222045T1/en not_active IP Right Cessation
- 2000-11-09 ES ES00124484T patent/ES2180494T3/en not_active Expired - Lifetime
- 2000-11-09 US US09/708,683 patent/US6624581B1/en not_active Expired - Fee Related
- 2000-11-09 EP EP00124484A patent/EP1100292B1/en not_active Expired - Lifetime
- 2000-11-09 DE DE50000352T patent/DE50000352D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| ATE222045T1 (en) | 2002-08-15 |
| DE50000352D1 (en) | 2002-09-12 |
| US6624581B1 (en) | 2003-09-23 |
| ES2180494T3 (en) | 2003-02-16 |
| EP1100292A1 (en) | 2001-05-16 |
| DE19954489A1 (en) | 2001-05-17 |
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