Ignition device for a discharge lamp and method for igniting...

H - Electricity – 05 – B

Patent

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H05B 41/04 (2006.01) F21V 19/00 (2006.01)

Patent

CA 2261316

The invention relates to a pulse ignition device and an ignition method for a discharge lamp, specially a high-pressure discharge lamp for an automobile headlight. The ignition device comprises a transformer having two parallel connected primary windings which are inductively coupled to the at least one secondary winding or exhibiting a primary winding consisting of a wide metal strip which is separated by an electrical insulation and is wound around the at least one secondary winding. The inventive ignition device has a compact structure which enables said device to be fully accommodated inside the base of the lamp.

L'invention concerne un dispositif d'allumage par impulsion et un procédé d'allumage pour une lampe à décharge, notamment une lampe à décharge à haute pression destinée à un projecteur de véhicule automobile. Ledit dispositif d'allumage présente un transformateur qui possède soit deux enroulements primaires montés en parallèle, qui sont tous les deux couplés par induction à au moins un enroulement secondaire, soit un enroulement primaire constitué d'une large bande métallique, qui est séparée par une isolation électrique et enroulée sur le ou les enroulements secondaires. Le dispositif d'allumage selon l'invention est conçu de manière compacte de façon à permettre le logement du dispositif d'allumage complet dans le culot de la lampe.

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