Design and simulation DC-DC power converters buck and boost for mobile applications using Matlab/Simulink

Nowadays, The demand for portable devices players has grown significantly and mobile applications become increasingly complex and multi-function. Research aims to increase the autonomy of portable devices by acting on several factors, one of the most discussed areas is to increase the efficiency of voltage converters in order to reduce consumption. In this context, DC / DC converters are used in portables to generate multiple DC levels for powering the circuits in a device, They are also used to reduce ripples ie, they carry out two main functions: modify the voltage level (step-up or step-down), regulate voltage. This paper first reviews the commonly used DC-DC converters in portable power device, and then presents the design and modeling of DC/DC Buck and Boost converter using Matlab/Simulink.