DESIGN AND ANALYSIS OF DC-DC BUCK CONVERTER WITH DIFFERENT TYPES OF COMPENSATION

DC-DC converter is one of the simplest and most widely used converters in controlled power applications such as cell phones, laptops, communication systems, and many more devices. This study aims to design and analyze the performance of a buck converter with different types of compensation. The compensation used in this research is Type 2 Compensation, Type 3 compensation, and PID compensation. The overall system with the converter and the compensator is simulated using Matlab-Simulink. The designs are validated using the control loop transfer function and analyzed in the frequency domain using Bode plots. The simulation results on Matlab-Simulink show that the output voltage generated from the buck converter with type 2 compensation is 4,944 volts with a ripple of 0,97 volts, an overshoot of 9,693 volts, and a settling time of 3,502 ms. The type 3 compensation output voltage is 5,005 volts with a ripple of 0,086 volts, overshoot of 7,025 volts, and a settling time of 0,411 ms, while in PID compensation, the output voltage is 5,001 volts with a ripple of 0,123 volts, 5,397 volts overshoot and a settling time of 0,232 ms. PID compensation has the best characteristics of the three compensations used, with the fastest settling time and small overshoot. The results of the resulting bode plot show that the compensation used is stable. Keywords: DC-DC Buck Converter, Type 2 Compensation, Type 3 Compensation, PID Compensatio