Modeling a multilevel converter for radiography and fluoroscopy

Abstract

EPE'16 ECCE Europe, 18th European Conference on Power Electronics and Applications, 5-9 september 2016, Karsruhe, GermanyIn this paper a mathematical model for a resonant multilevel converter is presented. The topology has been conceived to be used in X-ray power supplies. The power stage has been designed to minimize the resonant current throughout the input voltage range: 400V to 750V. The inverter stage is based on the series-parallel resonant topology, LCC, to include the parasitic elements of the step-up transformer. However, the introduction of an additional magnetic coupling provides a way to modify the reactive elements depending on the output powe