Improved pulsed operation method for a silent discharge lamp

Details Improved pulsed operation method for a silent discharge lamp Improved pulsed operation method for a silent discharge lamp

H - Electricity

05

B

H05B 41/24 (2006.01) H05B 41/28 (2006.01)

Patent

CA 2373488

The invention improves an operating method, already described in the prior application 198 39 329.6, for a silent discharge lamp L, in which, using the forward transformer principle, a voltage pulse effecting a forward ignition is impressed from a primary circuit P via a transformer T into a secondary circuit S containing the silent discharge lamp L, and the secondary circuit S thereafter executes a half wave which, as a consequence of the polarization, leads to a back ignition in the discharge lamp L. The improvement consists essentially in that an inductance of the transformer T which governs a transformer current is temporally varied.

L'invention concerne un procédé d'utilisation d'une lampe à décharge silencieuse (L) amélioré par rapport à la demande précédente (198 39 329.6). Selon ledit procédé, une impulsion de tension provoquant un allumage est appliquée selon le principe de conversion de flux au moyen d'un transformateur (T) à partir d'un circuit primaire (P) dans un circuit secondaire (S) contenant la lampe à décharge silencieuse (L). Ensuite, le circuit secondaire (S) effectue une oscillation partielle provoquant un allumage inverse en raison de la polarisation de la lampe à décharge (L). Ladite amélioration réside essentiellement dans le fait qu'une inductance du transformateur (T) déterminant un courant de transformateur est modifiée dans le temps.

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