An Output Feedback Discrete-Time Controller for the DC-DC Buck Converter

This paper presents a discrete-time output feedback controller to regulate the voltage of DC-DC buck converter. The proposal’s main feature is application equivalent robust exact filtering differentiator. First, document exposes theoretical analysis closed-loop system, where it considered problem implementing real-time differentiator with good relationship between exactness and noise filtration performance. Hence, secondly, in laboratory setup presented. first experimental results suggest that proposed exhibits robustness against maintains asymptotic accuracy, even saturated control inputs, as case Consequently, aiming verify features method, validated through multiple experiments, showing satisfactory tracking suppression instantaneous load supply disturbances, bounded measurement noise.