Reduction of Ripple in SEPIC DC-DC Converter with PMDC Motor

Abstract

Sepic DC-DC converter is a switching converter which inherently introduces certain amount of ripple which is minimized by using a filter at the output terminals. While this is a solution, the magnitude, cost and life of the filter dependent on the type of converters are used. Sepic DC-DC converters are power electronic circuits commonly used as an interface between the voltage source and the load served. The development of high static gain DC-DC converters is an important research area due to the crescent demand of this technology for several applications supplied by low DC output voltage power sources. The Sepic bidirectional DC-DC converter is simulated, fabricated and tested with R-load and Motor load. The efficiency is increased from 94% to 97% of the proposed Sepic converter.