Tapped Inductor based High Step-down DC-DC Converter for Point of Load Applications

A high step-down, non-isolated DC-DC converter based on a tapped inductor is proposed in this paper. Two capacitors are used in the primary and secondary winding to create voltage loops for energy recirculation, resulting in a high step-down voltage gain. The operation of the proposed converter is explained using equivalent circuits. Expressions for the voltage conversion ratio, design equations for passive elements, and voltage-current stresses of switching elements have also been derived at the steady-state analysis. The operation of the converter is validated using software simulations at ideal conditions.