Closed Loop DC-DC converter (Buck and Boost) Using PID Controller

This paper investigates the application of closed-loop control using Proportional-Integral (PI) and Proportional-Integral-Derivative (PID) controllers in DC–DC converters, specifically focusing on the buck and boost topologies. DC–DC converters are crucial for efficient voltage regulation and energy transfer. Closed-loop control enhances their performance by addressing disturbances. The research delves into the theoretical foundations of closed-loop control, detailing the operational principles and mathematical models of buck and boost converters. PI and PID controllers are strategically employed to regulate the output voltages, balancing transient response and steady-state error. Simulation and experimental results validate the effectiveness of the closed-loop control strategies, analyzing metrics like settling time and overshoot. The study also assesses the converters' robustness against load variations and disturbances, emphasizing the benefits of derivative control for improved transient response and disturbance rejection. This research contributes valuable insights for professionals and researchers in power electronics and control systems, offering optimized controller designs applicable to various domains, including renewable energy systems and portable electronic devices.