Authors: Sareddy Prasanna Reddy, Dr. P. Kowstubha, Parameshwari Rathod, Barla Ananda Sagar
Abstract: This paper presents the design and implementation of DC-DC buck converter using a digital PI control technique. The system converts a 24V DC input into a regulated 12V DC output. An microcontroller is used to implement closed-loop control and generate PWM signals. The controller continuously monitors the output voltage and adjusts the duty cycle to maintain stable output under different load conditions. The converter achieves an efficiency of around 90% with good voltage regulation. The results show that the proposed system is suitable for low-power embedded applications.