Microcontroller Based Pure Sine Wave Inverter

The design of a microcontroller based pure sine wave single phase inverter is presented here. The system has an output of 220V and 50 Hz. The sinusoidal pulse width modulation technique has been used for the design. The circuit is simulated in Proteus to ensure the output results are verified practically. The experimental result shows a good argument with the simulation data. The inverter has fewer harmonics, is simpler to design compared to the traditional inverter technology. The designed inverter is tested on various AC loads and is essentially focused upon low power applications.