Schibli, N.Rufer, A.2005-05-182005-05-181997https://infoscience.epfl.ch/handle/20.500.14299/213571For high power applications, multilevel topologies provide a number of advantages. In this paper, the single and three-phased multilevel converter is presented. Modulation methods and control schemes have been developed and tested on low-power prototypes. Further development has been made on the key components like the DC/DC converter for the power supplies of each level an on the medium-frequency transformer for the DC/DC converter.multilevel converter2-quadrant DC/DC convertermedium frequency transformatorcurrent state-space controllertext::conference output::conference paper not in proceedings