EP1056314A2 - Circuit for operating AC high pressure discharge lamps for a vehicle - Google Patents

Circuit for operating AC high pressure discharge lamps for a vehicle Download PDF

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Publication number
EP1056314A2
EP1056314A2 EP00110479A EP00110479A EP1056314A2 EP 1056314 A2 EP1056314 A2 EP 1056314A2 EP 00110479 A EP00110479 A EP 00110479A EP 00110479 A EP00110479 A EP 00110479A EP 1056314 A2 EP1056314 A2 EP 1056314A2
Authority
EP
European Patent Office
Prior art keywords
lamp
gas discharge
pressure gas
high pressure
gdl
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
EP00110479A
Other languages
German (de)
French (fr)
Other versions
EP1056314B1 (en
EP1056314A3 (en
Inventor
Wolfgang Daub
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hella GmbH and Co KGaA
Original Assignee
Hella KGaA Huek and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hella KGaA Huek and Co filed Critical Hella KGaA Huek and Co
Publication of EP1056314A2 publication Critical patent/EP1056314A2/en
Publication of EP1056314A3 publication Critical patent/EP1056314A3/en
Application granted granted Critical
Publication of EP1056314B1 publication Critical patent/EP1056314B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 a AC high pressure gas discharge lamp for a motor vehicle, with a Ballast, a superimposed ignitor, a symmetrical lamp filter and a high pressure gas discharge lamp, the symmetrical lamp filter between the high pressure gas discharge lamp and the superposition ignition is arranged with a filter capacity parallel to the high pressure gas discharge lamp and a choke in the supply lines to this parallel connection.
  • AC high pressure gas discharge lamps such as. B. the Xenon gas discharge lamps for motor vehicles
  • Current commutation interference pulses generated by an LC filter combination can be sufficiently suppressed.
  • This lamp filter usually exists from a capacitor parallel to the lamp and two inductors in series to the two electrical lamp connections and is in all known cases between the lamp and the actual igniter.
  • the disadvantage of this arrangement is that on the returning lamp line, which is not with the ignition transformer is connected, a high voltage pulse arises during ignition, which does not occur when adequate insulation of the lamp overturns according to vehicle mass and can cause significant EMI interference in the vehicle.
  • This High voltage pulse drops when igniting at the inductance, which with the returning lamp line is connected. The peak value of the pulse voltage can become very large depending on the design of the lamp filter. In Circuit implementations measure pulse voltages up to 14kV.
  • the invention has for its object a circuit for operating a To create AC high pressure gas discharge lamp for a motor vehicle which the voltage level of the impulse voltages mentioned to a harmless Dimension is limited.
  • the electrical switching element can advantageously be used as a glow lamp or Switching spark gap must be executed.
  • the Circuit according to the invention also has a significantly improved behavior when Ignite a hot lamp because the ignition current is short-circuited Inductance increases faster.
  • the single figure shows a ballast for a high pressure gas discharge lamp, and an ignitor with an 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 as one Superimposed ignitor; this is the secondary winding of the Ignition transformer (K1) connected in one of the lamp leads.
  • the ignitor also has a symmetrical lamp filter, the symmetrical Lamp filter between the high pressure gas discharge lamp (GDL) and the Superposition ignition is arranged and a filter capacity (C1) parallel to High pressure gas discharge lamp (GDL) and a choke (L1, L2) in each Has feed lines to this parallel connection.
  • the choke (L2) in the returning lamp line is an electrical one Switching element connected in parallel.
  • This switching element can be used as a glow lamp or Switching spark gap to be formed.
  • the training of Switching element as an electronic semiconductor module as practically unsuitable proven, because firstly only particularly expensive, high voltage resistant Semiconductor components come into question, second, semiconductor components one require special control, and thirdly, semiconductor components in the Compared to a glow lamp or switching spark gap relatively high capacity exhibit.
  • the switching element becomes conductive and closes due to the ignition voltage pulse this causes the throttle (L2) to be short, so that there is no throttle (L2) High voltage pulse can drop. This will reduce the effort for Isolation of the returning lamp line is reduced, as well as EMI interference this line effectively avoided.

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

The high pressure gas discharge bulb, such as a halogen lamp (GDL) is connected to a firing circuit that receives inputs fro control module. The firing circuit includes a transformer coupled to a symmetrical filter that incorporates a capacitor and two inductances. The capacitor is connected in parallel to the lamp.

Description

Die Erfindung betrifft eine Schaltung zum Betreiben einer Wechselstrom-Hochdruckgasentladungslampe für ein Kraftfahrzeug, mit einem Vorschaltgerät, einem Überlagerungszündgerät, einem symmetrischen Lampenfilter und einer Hochdruckgasentladungslampe, wobei das symmetrische Lampenfilter zwischen der Hochdruckgasentladungslampe und der Überlagerungszündung angeordnet ist, mit einer Filterkapazität parallel zur Hochdruckgasentladungslampe und je einer Drossel in den Zuführungsleitungen zu dieser Parallelschaltung.The invention relates to a circuit for operating a AC high pressure gas discharge lamp for a motor vehicle, with a Ballast, a superimposed ignitor, a symmetrical lamp filter and a high pressure gas discharge lamp, the symmetrical lamp filter between the high pressure gas discharge lamp and the superposition ignition is arranged with a filter capacity parallel to the high pressure gas discharge lamp and a choke in the supply lines to this parallel connection.

Wechselstromhochdruckgasentladungslampen, wie z. B. die Xenongasentladungslampen für Kraftfahrzeuge, erzeugen im Betrieb bei jeder Stromkommutierung Störimpulse, welche durch eine LC-Filterkombination ausreichend unterdrückt werden können. Dieses Lampenfilter besteht in der Regel aus einem Kondensator parallel zur Lampe und zwei Induktivitäten in Reihe zu den beiden elektrischen Lampenanschlüssen und ist in allen bekannten Fällen zwischen der Lampe und dem eigentlichen Zünder angeordnet. Nachteil dieser Anordnung ist, daß auf der rückführenden Lampenleitung, welche nicht mit dem Zündtransformator verbunden ist, beim Zünden ein Hochspannungsimpuls entsteht, welcher bei nicht ausreichender Isolation der Lampe nach Fahrzeugmasse überschlägt und beträchtliche EMI-Störungen im Fahrzeug hervorrufen kann. Dieser Hochspannungsimpuls fällt beim Zünden an der Induktivität ab, welche mit der rückführenden Lampenleitung verbunden ist. Der Scheitelwert der Impulsspannung kann je nach Auslegung des Lampenfilters sehr groß werden. In Schaltungsrealisierungen werden Impulsspannungen bis zu 14kV gemessen.AC high pressure gas discharge lamps, such as. B. the Xenon gas discharge lamps for motor vehicles, generate each in operation Current commutation interference pulses generated by an LC filter combination can be sufficiently suppressed. This lamp filter usually exists from a capacitor parallel to the lamp and two inductors in series to the two electrical lamp connections and is in all known cases between the lamp and the actual igniter. The disadvantage of this arrangement is that on the returning lamp line, which is not with the ignition transformer is connected, a high voltage pulse arises during ignition, which does not occur when adequate insulation of the lamp overturns according to vehicle mass and can cause significant EMI interference in the vehicle. This High voltage pulse drops when igniting at the inductance, which with the returning lamp line is connected. The peak value of the pulse voltage can become very large depending on the design of the lamp filter. In Circuit implementations measure pulse voltages up to 14kV.

Der Erfindung liegt die Aufgabe zugrunde, eine Schaltung zum Betreiben einer Wechselstrom-Hochdruckgasentladungslampe für ein Kraftfahrzeug zu schaffen, bei der die Spannungshöhe der genannten Impulsspannungen auf ein unschädliches Maß begrenzt ist.The invention has for its object a circuit for operating a To create AC high pressure gas discharge lamp for a motor vehicle which the voltage level of the impulse voltages mentioned to a harmless Dimension is limited.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß zu der, in der rückführenden Lampenleitung liegenden Drossel ein elektrisches Schaltelement parallel geschaltet ist. This object is achieved in that in the returning lamp line lying choke an electrical switching element is connected in parallel.

Das elektrische Schaltelement kann hierbei vorteilhaft als Glimmlampe oder Schaltfunkenstrecke ausgeführt sein.The electrical switching element can advantageously be used as a glow lamp or Switching spark gap must be executed.

Neben der Lösung der erfindungsgemäßen Aufgabenstellung, zeigt die erfindungsgemäße Schaltung überdies ein deutlich verbessertes Verhalten beim Zünden einer heißen Lampe, da der Zündstrom wegen der kurzgeschlossenen Induktivität schneller ansteigt.In addition to the solution of the task according to the invention, the Circuit according to the invention also has a significantly improved behavior when Ignite a hot lamp because the ignition current is short-circuited Inductance increases faster.

Im folgenden soll ein Ausführungsbeispiel der erfindungsgemäßen Schaltung anhand der Zeichnung näher erläutert werden.In the following an embodiment of the circuit according to the invention be explained in more detail with reference to the drawing.

Die einzige Figur zeigt ein Vorschaltgerät für eine Hochdruckgasentladungslampe, sowie ein Zündgerät mit integriertem Lampenfilter.The single figure shows a ballast for a high pressure gas discharge lamp, and an ignitor with an integrated lamp filter.

Das Vorschaltgerät steuert und versorgt sowohl die Hochdruckgasentladungslampe (GDL) als auch den primären Zündkreis des Zündgerätes. Das Zündgerät ist als ein Überlagerungszündgerät ausgeführt; hierzu ist die Sekundärwicklung des Zündtransformators (K1) 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.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 as one Superimposed ignitor; this is the secondary winding of the Ignition transformer (K1) connected in one of the lamp leads. The ignitor also has a symmetrical lamp filter, the symmetrical Lamp filter between the high pressure gas discharge lamp (GDL) and the Superposition ignition is arranged and a filter capacity (C1) parallel to High pressure gas discharge lamp (GDL) and a choke (L1, L2) in each Has feed lines to this parallel connection.

Der in der rückführenden Lampenleitung liegenden Drossel (L2) ist ein elektrisches Schaltelement parallel geschaltet. Dieses Schaltelement kann als Glimmlampe oder Schaltfunkenstrecke ausgebildet sein. Dagegen hat sich die Ausbildung des Schaltelement als elektronischer Halbleiterbaustein als praktisch wenig geeignet erwiesen, da hierzu erstens nur besonders kostenaufwendige, hochspannungsfeste Halbleiterbausteine in Frage kommen, zweitens Halbleiterbausteine einer besonderen Ansteuerung bedürfen, und drittens Halbleiterbausteine eine im Vergleich zu einer Glimmlampe oder Schaltfunkenstrecke relativ hohe Kapazität aufweisen.The choke (L2) in the returning lamp line is an electrical one Switching element connected in parallel. This switching element can be used as a glow lamp or Switching spark gap to be formed. In contrast, the training of Switching element as an electronic semiconductor module as practically unsuitable proven, because firstly only particularly expensive, high voltage resistant Semiconductor components come into question, second, semiconductor components one require special control, and thirdly, semiconductor components in the Compared to a glow lamp or switching spark gap relatively high capacity exhibit.

Durch den Zündspannungsimpuls wird das Schaltelement leitend und schließt hierdurch die Drossel (L2) kurz, so daß an der Drossel (L2) kein Hochspannungsimpuls abfallen kann. Hierdurch werden der Aufwand für die Isolation der rückführende Lampenleitung verringert, sowie EMI-Störungen auf dieser Leitung wirkungsvoll vermieden. The switching element becomes conductive and closes due to the ignition voltage pulse this causes the throttle (L2) to be short, so that there is no throttle (L2) High voltage pulse can drop. This will reduce the effort for Isolation of the returning lamp line is reduced, as well as EMI interference this line effectively avoided.

BezugszeichenReference numerals

C1C1
FilterkapazitätFilter capacity
GDLGDL
(Wechselstrom-) Hochdruckgasentladungslampe(AC) high pressure gas discharge lamp
K1K1
ZündtransformatorIgnition transformer
L1, L2L1, L2
DrosselnChokes

Claims (3)

Schaltung zum Betreiben einer Wechselstrom-Hochdruckgasentladungslampe (GDL) für ein Kraftfahrzeug, mit einem Vorschaltgerät, einem Überlagerungszündgerät, einem symmetrischen Lampenfilter und einer Hochdruckgasentladungslampe (GDL),
wobei das symmetrische Lampenfilter zwischen der Hochdruckgasentladungslampe (GDL) und der Überlagerungszündung angeordnet ist, mit einer Filterkapazität (C1) parallel zur Hochdruckgasentladungslampe (GDL) und je einer Drossel (L1, L2) in den Zuführungsleitungen zu dieser Parallelschaltung,
dadurch gekennzeichnet,
daß zu der in der rückführenden Lampenleitung liegenden Drossel (L2) ein elektrisches Schaltelement parallel geschaltet ist.Circuit for operating an AC high-pressure gas discharge lamp (GDL) for a motor vehicle, with a ballast, a superimposed ignition device, a symmetrical lamp filter and a high-pressure gas discharge lamp (GDL),
wherein the symmetrical lamp filter is arranged between the high-pressure gas discharge lamp (GDL) and the superimposed ignition, with a filter capacity (C1) parallel to the high-pressure gas discharge lamp (GDL) and one choke (L1, L2) in each of the feed lines to this parallel connection,
characterized,
that an electrical switching element is connected in parallel with the choke (L2) lying in the returning lamp line. Schaltung nach Anspruch 1, dadurch gekennzeichnet, daß das Schaltelement eine Schaltfunkenstrecke ist.Circuit according to claim 1, characterized in that the switching element is a switching spark gap. Schaltung nach Anspruch 1, dadurch gekennzeichnet, daß das Schaltelement eine Glimmlampe ist.Circuit according to claim 1, characterized in that the switching element is a glow lamp.
EP00110479A 1999-05-26 2000-05-17 Circuit for operating AC high pressure discharge lamps for a vehicle Expired - Lifetime EP1056314B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924097A DE19924097A1 (en) 1999-05-26 1999-05-26 Circuit for operating an AC high-pressure gas discharge lamp for a motor vehicle
DE19924097 1999-05-26

Publications (3)

Publication Number Publication Date
EP1056314A2 true EP1056314A2 (en) 2000-11-29
EP1056314A3 EP1056314A3 (en) 2001-09-12
EP1056314B1 EP1056314B1 (en) 2003-09-17

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ID=7909228

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EP00110479A Expired - Lifetime EP1056314B1 (en) 1999-05-26 2000-05-17 Circuit for operating AC high pressure discharge lamps for a vehicle

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EP (1) EP1056314B1 (en)
AT (1) ATE250321T1 (en)
DE (2) DE19924097A1 (en)
ES (1) ES2207439T3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455156C (en) * 2002-03-12 2009-01-21 电灯专利信托有限公司 Switch equipment for high-pressure discharge lamp ignition
WO2011115509A1 (en) * 2010-03-18 2011-09-22 Intellectual Property Energy Mad Limited Load balance circuit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954489A1 (en) 1999-11-12 2001-05-17 Hella Kg Hueck & Co Circuit for operating an AC high-pressure gas discharge lamp for a motor vehicle
US7460379B2 (en) 2006-09-05 2008-12-02 General Electric Company Electrical circuit with voltage multiplier for facilitating ignition of a gas discharge lamp
US7456583B2 (en) 2006-09-05 2008-11-25 General Electric Company Electrical circuit with dual stage resonant circuit for igniting a gas discharge lamp

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19645752A1 (en) * 1995-11-06 1997-05-15 Koito Mfg Co Ltd Discharge lamp e.g. headlamp for motor vehicle
US5828186A (en) * 1995-03-01 1998-10-27 U.S. Philips Corporation Ignition scheme for a high pressure discharge lamp
EP0891123A1 (en) * 1997-07-11 1999-01-13 MAGNETI MARELLI S.p.A. A device for operating a gas-discharge lamp, particularly for motor vehicles

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310307B4 (en) * 1993-03-30 2004-10-14 Robert Bosch Gmbh Headlights for vehicles
DE69514181T2 (en) * 1994-04-06 2000-06-29 Koninklijke Philips Electronics N.V., Eindhoven CIRCUIT ARRANGEMENT

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5828186A (en) * 1995-03-01 1998-10-27 U.S. Philips Corporation Ignition scheme for a high pressure discharge lamp
DE19645752A1 (en) * 1995-11-06 1997-05-15 Koito Mfg Co Ltd Discharge lamp e.g. headlamp for motor vehicle
EP0891123A1 (en) * 1997-07-11 1999-01-13 MAGNETI MARELLI S.p.A. A device for operating a gas-discharge lamp, particularly for motor vehicles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100455156C (en) * 2002-03-12 2009-01-21 电灯专利信托有限公司 Switch equipment for high-pressure discharge lamp ignition
WO2011115509A1 (en) * 2010-03-18 2011-09-22 Intellectual Property Energy Mad Limited Load balance circuit
CN103155715A (en) * 2010-03-18 2013-06-12 知识产权快乐能源有限公司 Load balancing circuit

Also Published As

Publication number Publication date
DE19924097A1 (en) 2000-11-30
ES2207439T3 (en) 2004-06-01
ATE250321T1 (en) 2003-10-15
EP1056314B1 (en) 2003-09-17
DE50003692D1 (en) 2003-10-23
EP1056314A3 (en) 2001-09-12

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