Publication Date


Document Type


Committee Members

Marian Kazimierczuk (Committee Member), Kuldip Rattan (Advisor), Joseph F. Thomas, Jr. (Other), Kefu Xue (Other), Xiaodong Zhang (Committee Member)

Degree Name

Master of Science in Engineering (MSEgr)


Modern electronics are operating at lower voltages with higher currents, requiring power converters to deliver these requirements efficiently. In this thesis, a switch-inductor buck converter is designed for the required specifications; and for the selected design, component losses and efficiency are calculated. A MATLAB/Simulink model is constructed, and tested in the presence of load and source disturbances to show the converter cannot maintain the desired output voltage when the disturbances are applied.

A fuzzy logic PID controller is designed to regulate the duty cycle of the converter to control the output voltage. Control surfaces are designed for proportional, integral, and derivative gains of the fuzzy PID controller. The compensated power converter is tested using the Simulink model in the presence of the disturbances, and it is shown that the fuzzy controller is capable of keeping the power converter output voltage within the operating requirements, while improving system speed and stability.

Page Count


Department or Program

Department of Electrical Engineering

Year Degree Awarded