A new dual output DC-DC converter based on SEPIC and Cuk converters

Abstract

In this paper a new dual output converter is proposed based on the traditional Cuk and SEPIC converters. Two outputs of single input voltage source is useful in various cases (e.g. electrical machines, multi voltage DC micro grids, solar energy systems.). As the number of output is increased by means of transformers consequently the volume, cost and losses will rise. This topology uses less inductor and capacitor comparing separate converters. The proposed topology is applicable regarding to the different output polarity. In addition, this converter can be used in power supply with multiple voltages. Also the voltage stress of switches and diodes have been calculated. In this converter the voltage gain in one output has increased drastically. The converter analysis is carried out in steady state. Finally, simulation result is presented to validate mathematical analysis in MATLAB/Simulink environment.