DC/DC Buck Converter Using Fuzzy Logic Controller

DC/DC converter is an electronic gadget that converts DC power from one level to another level. There are three types of converters, they are boost converter, buck converter, and buck-boost converter. This project focuses on the dc/dc Buck converter by using PI control and fuzzy logic control with input 24V and output 12V. The dc/dc buck converter called as a step-down converter, PI control, and fuzzy logic control are applying for the control of switching device in buck converter then output voltage can be controlling 12V. PI control is generally used for deploying a feedback control. The output voltage can be obtained by tuning the P and I gains. Fuzzy logic control is the simple method, reasonable and easy in design. The Fuzzy controller can attain the fast-transient response, little overshoot, reducing voltage and current ripples, the term PI is defined as P for proportional and I for integral. The whole converter circuit is designed and implemented in MATLAB Simulink. The analysis is carried out by making a comparison of both the controllers' output voltage.