DBD excimer lamp power supply with fully controlled operating conditions

Florez, David; Díez, Rafael; Hay, Karim; Piquet, Hubert

doi:10.1109/optim.2012.6231836

Cited by 9 publications

(14 citation statements)

References 12 publications

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“…This section demonstrates that a square-shape current is adequate to adjust the power injected into the DBD lamp, based on the electrical model of this DBD and on the three parameters (amplitude, duty cycle, and frequency) controlled by the proposed supply [18].…”

Section: Parametric Control Of the Dbd Electrical Powermentioning

confidence: 99%

“…As previously computed in [18], the average lamp power (P lamp ) is obtained with the mean value of the instantaneous power in the gas conductance, considering that the two capacitors are reactive elements that do not dissipate power, i.e.,…”

Section: Lamp Power As a Function Of The Dofmentioning

confidence: 99%

“…This topology was selected due to the bipolar voltage imposed by the DBD at the input of the inverter. This makes a bipolar voltage at the output of the chopper (v chop ) better in controlling the inductance current (i out ), when compared with a unipolar-voltage converter, such as the buck-type converter used in [18], or with a current source for one-quadrant application [26]. Additionally, among the bipolaroutput topologies, the two-quadrant chopper was selected for being the simplest in this case (compared with half and full bridge), since the current in the inductance is unidirectional and constant.…”

Section: B DC Sourcementioning

confidence: 99%

“…This leads to a maximum current ripple of 10% (18), including a maximum error of 2.6% due to (16) and (17), which is the cost of using V in < v lamp_peak .…”

Section: Converter Dimensioningmentioning

confidence: 99%

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Square-Shape Current-Mode Supply for Parametric Control of the DBD Excilamp Power

Florez

Díez

Piquet

et al. 2015

IEEE Trans. Ind. Electron.

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With the aim of providing a power supply for the study of dielectric barrier discharge (DBD) excimer lamps (excilamps), a current-mode converter that allows for an accurate adjustment of the electrical power injected into one of those lamps is designed and implemented. Starting from the electrical model of the DBD lamps, the convenience of using a current-mode supply to control the lamp power is demonstrated. With the proposed converter, the current supplied to the lamp has a trapezoidal almost-square shape controlled by means of three parameters, namely, amplitude, duty cycle, and frequency, which provides full control of the lamp electrical power. Implementation is made considering a step-up transformer interfacing the high-voltage lamp with the converter. Experiments demonstrate the operating principle of this converter, including ultraviolet power measurements for a DBD XeCl excilamp. The capabilities of the converter are used to analyze the lamp behavior under different combinations of these three parameters, illustrating its capabilities for finding the optimal operating point of a DBD reactor.Index Terms-Current control, dielectric, dielectric barrier discharge (DBD), excimer lamp (excilamp), ultraviolet (UV).

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Section: Parametric Control Of the Dbd Electrical Powermentioning

confidence: 99%

Section: Lamp Power As a Function Of The Dofmentioning

confidence: 99%

Section: B DC Sourcementioning

confidence: 99%

“…This leads to a maximum current ripple of 10% (18), including a maximum error of 2.6% due to (16) and (17), which is the cost of using V in < v lamp_peak .…”

Section: Converter Dimensioningmentioning

confidence: 99%

See 2 more Smart Citations

Square-Shape Current-Mode Supply for Parametric Control of the DBD Excilamp Power

Florez

Díez

Piquet

et al. 2015

IEEE Trans. Ind. Electron.

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“…10. These figures are obtained with a specifically designed power supply, designed for the research of the optimal operating conditions of the lamp [20]. This power supply is capable of changing the frequency f , amplitude I , and duty cycle d of the current waveform (see Fig.…”

Section: B Dbd Lampmentioning

confidence: 99%

Parameters Identification and Gas Behavior Characterization of DBD Systems

Prades

Piquet

Patino

et al. 2013

IEEE Trans. Plasma Sci.

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This paper proposes an efficient modeling and an identification method for dielectric barrier discharge (DBD) systems, based on input-output (current-voltage) experimental measurements. The DBD is modeled using an equivalent electric circuit associated with a differential equation that describes the dynamics of its conductance. This equation assumes a homogeneous behavior of the gas. This paper introduces a series of polynomial terms of the current of the gas into the conductance equation. These terms, after identification, are a very useful tool to analyze the physical mechanisms that take place in the gas. The identification process also returns the numerical values of other DBD parameters, such as associated capacitances and the breakdown voltage. In addition, an asymmetric model for the gas, which considers the direction of the current, is proposed to consider the possible geometrical dissimilarity between the two electrodes of the DBD setup. Experimental measurements taken on two different DBD applications are used for validating the proposed approach.

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Bright Future of Deep-Ultraviolet Photonics: Emerging UVC Chip-Scale Light-Source Technology Platforms, Benchmarking, Challenges, and Outlook for UV Disinfection

Sharma

Demir

2022

ACS Photonics

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The COVID-19 pandemic has generated great interest in ultraviolet (UV) disinfection, particularly for air disinfection. Although UV disinfection was discovered close to 90 years ago, only very recently has it reached the consumer market and achieved much acceptance from the public, starting in the 2000s. The current UV light source of choice has been almost exclusively a low-pressure mercury vapor discharge lamp. Today, however, with emerging deep-UV (DUV) chip-scale technologies, there has been a significant advancement, along with ever-increasing interest, in the development and deployment of disinfection systems that employ compact devices that emit in the deep-UV spectral band (200− 280 nm), including UV light-emitting diodes (LEDs) and cathodoluminescent (CL) chips. This perspective looks into competing UV technologies (including mercury lamps and excimer lamps as benchmarks) on their optical merits and demerits and discusses the emerging chip-scale technologies of DUV electroluminescent and cathodoluminescent devices, comparing them against the benchmarks and providing an overview of the challenges and prospects. The accelerating progress in chip-scale solutions for deep-UV light sources promises a bright future in UV disinfection.

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DBD excimer lamp power supply with fully controlled operating conditions

Cited by 9 publications

References 12 publications

Square-Shape Current-Mode Supply for Parametric Control of the DBD Excilamp Power

Square-Shape Current-Mode Supply for Parametric Control of the DBD Excilamp Power

Parameters Identification and Gas Behavior Characterization of DBD Systems

Bright Future of Deep-Ultraviolet Photonics: Emerging UVC Chip-Scale Light-Source Technology Platforms, Benchmarking, Challenges, and Outlook for UV Disinfection

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