A new transformerless quadratic buck–boost converter with high?voltage gain ratio and continuous input/output current port

A new transformerless quadratic buck–boost converter with a common ground and high-voltage gain ratio of D/(1?D)2 is proposed in this study. The output input currents the structure are continuous due to presence inductive filters ports. continuity current simultaneously reduces voltage ripple also capacitor stress at port. With structure, lower total switching device power higher attained same duty cycle. Due advantages it can be widely used renewable energy. presented model investigated terms steady-state analysis, conduction mode, small-signal modelling, efficiency parasitic resistance effects. To validate performance converter, experiments conducted laboratory claim theoretical waveforms obtained from piecewise linear electrical circuit simulation (PLECS) simulation.