A comparison of resonant topologies in high voltage DC applications

Because of their tolerance of transformer non-idealities, resonant converters appear well-suited to high voltage applications. In this paper, the series and parallel resonant topologies, as well as a newly discovered hybrid resonant topology are compared for high voltage applications. Design criteria which incorporate transformer nonidealities are deloped, and are employed in the construction of high voltage prototypes for each topology. It is found that the parallel topology leads to the lowest peak switch current and the most ideal behavior.