Novel Resonant Converter Topology Realized by Adjusting Transformer Parameters

This paper shows a new direction as to how the transformer parameters may be best utilized and presents the performance and control of novel DC/DC and AC/DC converter topologies. All the three inductances of a transformer have been utilized to realize a CL topology having excellent characteristics and requiring no external inductor. For half bridge topology the capacitor used for the purpose of input voltage splitting also serves as the resonating capacitor. Thus in the half bridge version the topology is realized only with a specially designed transformer and no other external components. A laboratory setup is produced and experiments conducted for DC/DC and AC/DC applications. New design procedure and control technique for the converters also presented. These topologies are very promising in small power applications.