DESIGN AND CONSTRUCTION OF A 3.5KVA TRANSFORMERLESS INVERTER

This project involved designing and building a 3.5KVA hybrid pure sine wave inverter with a battery charging and monitoring system. A high frequency transformer with a 3.5KVA rating was used to design the inverter circuit. The 24V battery bank serving as the DC voltage supply. It was controlled by a high-performance microprocessor (DSPic30f4012) with sophisticated switching and control capabilities. The inverter design made advantage of the pulse width modulation technology.Design, construction, and testing were done on the inverter circuit. It worked well with a variety of home appliances, including a refrigerator, electric fans, and lightbulbs