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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En este articulo se presenta el diseñó e implementación de un manejador eléctrico con factor de potencia unitario de un motor de inducción trifásico controlado de forma digital mediante la técnica de control escalar.Se describe en detalle la metodología usada para obtener los modelos lineales de todo el sistema y los resultados experimentales de la implementación. El sistema implementado obtuvo factor de potencia unitario en el rango de operación (Pin <200W), regulación de velocidad menor 5% y una eficiencia de la unidad de procesamiento de potencia de 82%.

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