A dual-switch cubic SEPIC converter with extra high voltage gain

To provide a high votage conversion ratio, conventional non-isolated DC-DC boost topologies, which have reduced voltage capability, to operate with extremely duty cycle higher than 0.9. This paper proposes converter is mainly based on the narrow range of ratio achieve extra gain at relatively stress semiconductors. In addition, it does include any magnetic coupling structure. The structure proposed combines new hybrid SEPIC and multiplier cells. From steady-state analysis, this has wide cubic dependence respect then, can increase output several times more quadratic converters same ratio. However, dual-switch must withstand switches. overcome drawback, an extension also introduced discussed. superiority its that allows Simulation results are shown they corroborate feasibility, practicality validity concepts converter.