College - Author 1
College of Engineering
Department - Author 1
Electrical Engineering Department
Degree Name - Author 1
BS in Electrical Engineering
College - Author 2
College of Engineering
Department - Author 2
Electrical Engineering Department
Degree - Author 2
BS in Electrical Engineering
Date
6-2025
Primary Advisor
Taufik, College of Engineering, Electrical Engineering Department
Abstract/Summary
This senior project entails the design, creation, and testing of a circuit board to exhibit the differences and advantages of the multiphase buck converter over the single-phase buck converter for use in a future power electronic laboratory experiment at Cal Poly State University. As energy demand requirements continually increase from more advanced and widespread use of technology, it is important to find a method of power delivery that maximizes efficiency while taking up as little area on a circuit board as possible. This is where the multiphase buck converter topology is desirable over the traditional single-phase buck converter topology. For this project, a dual-phase and single-phase converter were both built onto the same printed circuit board to compare various converter performance metrics such as efficiency, line regulation, and load regulation. After verifying the design with SIMPLIS, hardware tests were conducted whose results demonstrate that the dual-phase circuit outperformed the single-phase circuit in almost every tested metric, with a peak full-load efficiency of 85.29% vs. 79.03%, line regulation of 0.08% vs. 0.09%, load regulation of 1.18% vs. 1.44%, and output voltage ripple of 3.85% vs. 3.59% for the dual-phase and single-phase circuits, respectively. These results further illustrate the functionality of the laboratory module, which will serve as an educational tool for future Cal Poly students in understanding the multiphase buck converter.
URL: https://digitalcommons.calpoly.edu/eesp/688