Design and implementation of single phase solar inverter based on microcontroller 16F628A

A microcontroller based advanced technique of generating sine wave with lowest harmonics is designed and implemented in this paper the main objective of our proposed technique is to design a low cost, low harmonics voltage source inverter in our project we used PIC 16F628A microcontroller to generate 4 KHZ pwm switching signal the design is essentially focused upon low power electronic appliances such a light, fan, charges, television.. etc. in our project we used 2N3055 Silicon NPN-transistor, for driving Transistor we used totem pole configuration as a Transistor driver. The inverter input 12VDC and its output 220 VAC across transformer the complete design is molded in proteus software and its output is verified practically.