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Communication Dans Un Congrès Année : 2019

Study of the interactions between a resonant power supply and a flat dielectric barrier discharge lamp

Résumé

Dielectric Barrier Discharge (DBD) lamps have a lot of applications in industry and research (lamps, surface treatment, etc.), so the knowledge of their behavior and their parameters are essential. A DBD lamp is generally composed of 2 dielectric layers, separated by a gas mixture. Plasma will appear in the gas when the vGas voltage reaches the Vth threshold. The purpose of this study is to analyze the interaction between a pulsed current power supply [2] and a flat DBD lamp. Figures are a schematic of the DBD lamp and its equivalent electric diagram. The DBD lamp parameters are identified (Vth breaking voltage, Cd the dielectric capacitance, and Cg the gas capacitance) with the use of an equivalent electric circuit and the Manley (Q-V) diagram: vDBD voltage and iDBD current are measured, and the deposited charges qDBD are calculated. The Q(V) Manley diagram allows to determine the characteristics Vth, Cd and Cg. Circuit simulation is used to validate the predictability of the model: iDBD experimental waveform is used to supply the model, and the good agreement between the calculated lamp voltage with the vDBD measurements can be pointed out. Varying the supply conditions (frequency, current pulse magnitude, and thus peak lamp voltage), the luminance of Xe-Ne flat lamp is measured. The comparison with the injected electrical power is used to analyze the lamp efficiency with respect to its supply conditions.
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Dates et versions

hal-02618444 , version 1 (29-05-2020)

Identifiants

  • HAL Id : hal-02618444 , version 1

Citer

Bruno Caillier, Nabil Hamza, David Florez, Hubert Piquet. Study of the interactions between a resonant power supply and a flat dielectric barrier discharge lamp. Plathinium - Plasma Thin Film International Union Meeting, Sep 2019, Antibes, France. ⟨hal-02618444⟩
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