Design and Implementation of an ESP32-Based Closed-Loop DC-DC Power Management System with OLED Monitoring and Audible Fault Alert for 24V Battery Applications

The proposed system is an advanced ESP32-based closed-loop DC-DC power management system designed for efficient voltage regulation and intelligent battery monitoring in 24V battery applications. The system integrates a boost converter and buck converter architecture to maintain stable output voltage under varying load conditions through real-time feedback control.

The ESP32 microcontroller continuously monitors voltage parameters and dynamically adjusts the converter operation to achieve precise closed-loop regulation. An OLED display is used for real-time visualization of system parameters such as input voltage, output voltage, battery status, and operational condition. A buzzer-based alert mechanism provides audible indications during fault conditions such as overvoltage, undervoltage, overload, or abnormal system behavior.

The system is suitable for renewable energy systems, industrial battery management, portable power electronics, and smart embedded energy applications. The proposed design improves power conversion efficiency, enhances system reliability, and enables intelligent monitoring through embedded control techniques.

Short IEEE Abstract Style Description

This project presents the design and implementation of an ESP32-based closed-loop DC-DC power management system for 24V battery applications. The system employs boost and buck converters for efficient voltage regulation and utilizes real-time feedback control for stable operation. An OLED display provides live system monitoring, while a buzzer alert mechanism enhances operational safety. The proposed system offers improved efficiency, intelligent protection, and reliable power management suitable for modern embedded and industrial applications.