BOUDRA TOUFIK2022-11-092022-11-092022http://10.10.1.6:4000/handle/123456789/2284The DC-DC converter has found its application in recent years in various fields, namely: computer systems, renewable energies, telecommunications and electrical drives for electrical machines. There are several types of choppers, the most common of which are the step-down or buck (DC/DC) converter. In this project, we will be interested in the study and the simulation by the MATLAB/Simulink software of the control by sliding mode, intended to ensure the good control of the DC/DC step-down converter where the obtained simulation results are acceptablefrDC-DC converter, buck converter, sliding mode control, MATLAB/Simulink.Thesis