Design of a current converter for the study of the UV emission in DBD excilamps

Díez, Rafael; Piquet, Hubert; Bhosle, Sounil; Blaquière, Jean-Marc; Roux, Nicolas

doi:10.1109/isie.2008.4677220

Cited by 9 publications

(12 citation statements)

References 8 publications

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“…As seen in the power formulas, for both topologies, stability is assured only if V in is smaller than the V th voltage (seen in the primary), thus limiting the amount of power that can be supplied and the UV power to be obtained [25], [26].…”

Section: Controllability Of the Uv Emissionmentioning

confidence: 99%

Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

Florez¹,

Schitz²,

Piquet³

et al. 2018

IEEE Trans. Plasma Sci.

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. Abstract-Three different electrical generators have been designed and used to supply an exciplex dielectric barrier discharge lamp in order to elucidate the influence of each one of these supplying strategies over the system performance; the first method consists on supplying the lamp with short bipolar voltage pulses; the second and third methods are based on semiresonant converters were current pulses, of controlled duration and magnitude, are injected into the lamp. For each one of the generators, measurements of the lamp and supply efficiency, are performed and analyzed, at different levels of power (up to 130 W) and operating frequencies (60-90 kHz). From the experimental results, the pulsed voltage-mode approach has allowed obtaining the highest lamp efficiency (7%), yet the maximum supply efficiency is offered by the resonant mode supplies. On the basis of the lamp and the supply efficiencies, the whole system performance is analyzed.Index Terms-Dielectric-barrier discharge (DBD), exciplex lamp, pulsed voltage, resonant converter, ultraviolet.

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Section: Controllability Of the Uv Emissionmentioning

confidence: 99%

Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

Florez¹,

Schitz²,

Piquet³

et al. 2018

IEEE Trans. Plasma Sci.

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“…The duration of the sequences (B) and (D) t discharge is defined by the values of C diel , L, n (step-up ratio of the transformer), and I L0 [24]; they naturally finish when the i L current matches a zero value (spontaneous turn-off of the thyristors-like switches, as will be detailed in next section-see Section III-C1).…”

Section: B Power Supply Topology Operating Principle and Degrees Omentioning

confidence: 99%

Pulsed Current-Mode Supply of Dielectric Barrier Discharge Excilamps for the Control of the Radiated Ultraviolet Power

Piquet

Bhosle

Díez

et al. 2010

IEEE Trans. Plasma Sci.

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UV excimer lamps are efficient narrowband sources of UV radiation with applications in various domains. The issue of controlling the UV emission by means of the power supply associated with such lamps favors pulsed current-controlled generators. After having established the previous statements, we propose a dedicated power converter topology which implements the needed performances. The analysis of the degrees of freedom of this structure shows the capability of this pulsed supply to realize the control of both the pulses' current energy and of the mean power transferred to the lamp. Actual experimental realizations and measurement are presented and the feasibility and the performances of the proposed solutions are established.

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“…It is desired to avoid uncontrollable oscillations of the current between the buck switching instants A criteria to reduce the effects of the sinusoidal oscillation, is to have a resonant frequency f osc such that i Lb does not start to decrease due to the oscillation before the next switching instant, this is done with an oscillation period T osc greater or equal to 2T L . This condition is achieved when (13) and (14) are respected.…”

Section: B Control Of the Current Sourcementioning

confidence: 96%

“…Based on a DBD excimer lamp with the equivalent electric model in Fig.4, and the experiments by [13], it has been determined the lamp power to be supplied and the lamp current frequency. Because the lamp voltage achieves approximately 6kV under the experimental conditions [13], a step-up transformer has been implemented to connect the inverter to the lamp.…”

Section: B Control Of the Current Sourcementioning

confidence: 99%

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Programmable current converter synthesis for the evaluation of UV radiation of excimer lamps

2010

2010 Ieee Andescon

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This work proposes the development of a power supply for Dielectric Barrier Discharge (DBD) lamps, intended for the evaluation of a water treatment system based on UV radiation. The DBD excimer lamp is an attractive source of UV because of its cost and radiation power. The proposed converter is conceived to control the UV radiation by programming different lamp current intensities, duty cycles and frequencies.For the converter synthesis, a capacitive electric equivalent model of the DBD is used. A simulation of the converter and its control analysis is presented.

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Design of a current converter for the study of the UV emission in DBD excilamps

Cited by 9 publications

References 8 publications

Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

Efficiency of an Exciplex DBD Lamp Excited Under Different Methods

Pulsed Current-Mode Supply of Dielectric Barrier Discharge Excilamps for the Control of the Radiated Ultraviolet Power

Programmable current converter synthesis for the evaluation of UV radiation of excimer lamps

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