A Series-Parallel Input Parallel Output Based Active Clamped Current-Fed DC-DC Converter For High Power Applications

This work presents a series-parallel input parallel output (SPIPO) based active clamped current-fed DC-DC converter topology, which is capable of to operate at medium voltage level at input side and can be employed for high power applications. The presented DC-DC converter provides galvanic isolation and provides ZVS (zero voltage switching) operation to primary side switches and ZCS (zero current switching) operation to the rectifier diodes present on the secondary side of the high-frequency transformer. The presented system reduces the input and output filter size because of interleaving operation and hence provides a compact and highly efficient DC-DC converter. The presented work was implemented on MATLAB software and was tested at various duty ratio operating conditions of the presented DC-DC converter.