Comparative Analysis of DC-DC Converters

The applications of DC-DC converter are fast increasing. This converter converts voltage from one level to another voltage level. Power level value also ranges from small to high level. But due to fast development in DC to DC converters number of topologies are available. This paper analyzes two different converters; Boost converter and SEPIC converter. The theoretical derivations and parameter equations for designing the DC-DC converters are presented. The workconcentrates on variation in the input parameters like inductance, capacitance and switching frequencyto obtain the desired output voltage. The output voltage ripple is also calculated for comparing the two converters. Further, the performance parameters such as total harmonic distortion, power factor are calculated for that particular converter. The DC-DC converter performance of the simulation was carried out in PSIM Software.