Couplings between the power generator and a DBD Excilamp supplied with a resonant current source

Hubert Piquet (1) , David Florez (2, 1) , Xavier Bonnin (1) , Antoine Belinger (3) , R. Diez (2)

1 LAPLACE-GENESYS - Groupe ENergie Electrique et SYStémique
2 PUJ - Pontificia Universidad Javeriana
3 LAPLACE-MPP - Matériaux et Procédés Plasmas

A new generator topology, specifically studied for the supply of DBD excilamps (Xe-Cl, Kr-Cl), has been recently developed at LAPLACE Laboratory. It exhibits a controllable discontinuous current-source behavior, which allows an accurate control of the UV emission. Design rules and performances (including experiments, electrical efficiency measurements-higher than 90%) of this discontinuous resonant current inverter are presented. Under specific experimental conditions, which will be detailed, a Xe-Cl excilamp connected to this power supply exhibits an unexpected system behavior: low frequency (# 0.05 Hz) jumps are observed on the UV emission (with intense flash of a few seconds). A study of the couplings between the generator and the lamp, and of the sensitivity of the transferred power relatively to the lamp parameters [4] is proposed to analyze this behavior and will be discussed.

Mots clés: Excimer Lamp; Dielectric Barrier Discharge; Electric Discharge Power Supply; DBD; Ultra Violet Generation (UV)

Domaines: Energie électrique; Plasmas

Hubert Piquet, David Florez, Xavier Bonnin, Antoine Belinger, R. Diez. Couplings between the power generator and a DBD Excilamp supplied with a resonant current source. AMPL'2013 Atomic and Molecular Pulsed Lasers AMPL - 2013, Sep 2013, Tomsk, Russia. ⟨hal-02618598⟩