Switching regulator using a DC–DC step‐down non‐cascading converter

In this study a DC–DC switching regulator with step‐down capacity is presented. It uses a converter based on non‐cascading structures. A model of the converter, as well as a controller design procedure to achieve the regulation task, is presented. For the controller design, a control scheme that consists of two control loops is applied. The inner loop is built using the inductor current as feedback. The outer loop is implemented using a proportional‐integral controller. The tuning procedure of the controller parameters was developed from the state‐space non‐linear averaged model of the converter, where the necessary conditions for the existence of an unique operating point and stability in closed‐loop are obtained. To prove the effectiveness of the switching regulator, numerical simulations and experimental results are presented.