Design and Development of Microcontroller Based Adjustable Power Supply with Embedded Safety Controls

Abstract—The project focused on developing A Microcontroller Based Adjustable Power Supply used for High Energy Material Ignition with in-built Safety Features, a device designed to provide variable current as required, incorporating multiple safety features and capable of checking load continuity. The initial phase involved simulating the partial circuit using Proteus Software, LTSpice, and MPLab X IDE, ensuring accurate modelling and performance verification. Electrical components with safe current and voltage ratings were integrated to enhance safety and efficiency. The circuit was designed and built from scratch, employing advanced components and the latest technology to improve overall functionality. This comprehensive approach resulted in a more reliable, efficient, and safer power supply unit, demonstrating significant improvements over previous iterations. Key challenges included selecting appropriate components to meet the stringent safety and performance criteria and ensuring compatibility with existing technologies.Testing was conducted to validate the circuit design, including component-wise tests and continuity checks to ensure robustness under various operating conditions. Implementing advanced safety features such as automatic shut-off mechanisms and real-time monitoring systems mitigated potential risks. Additionally, the use of modern simulation tools enabled the optimization of circuit performance, reducing the likelihood of failures. The successful completion of this project highlights the importance of integrating simulation, appropriate components, and rigorous testing in developing a desired system. Overall, the enhanced power supply unit is expected to have significant applications in various industrial and technical fields, offering improved control and safety features. KEYWORDS: Microcontroller, Current, Voltage, Continuity, Load, Proteus, LTspice, MPLab X IDE, Power Supply, High Energy, Safety Features