Analysis and control of synchronous buck converter

In this study, analysis and control of synchronous buck converter is investigated. Modeling of the converter is achieved and optimized control methods are applied as simulation and hardware implementation. Matlab/Simulink is used as simulation environment. Hardware implementation is realized by using a microcontroller based circuit, which is dsPICDEM SMPS development board.Prior studies show that PID, fuzzy logic and sliding mode controllers have been frequently applied to buck converter. In this thesis, to improve the efficiency of these control methods, some parameters of these controllers are optimized. Particle Swarm Optimization method is selected for obtaining optimum controllers because of the method?s easy programming and fast convergence features. The optimized controllers are implemented on the Synchronous Buck converter and their performances are compared under load and line variations.