Development of microcontroller based single phase SPWM inverter with remote control facility

This paper presents the development of a state-of-the-art remotely controlled single phase Sinusoidal Pulse Width Modulated (SPWM) inverter with the incorporation of RISC microcontroller. A provision of remote control from a PC in addition to the local control is incorporated in order to control the functionality of the inverter. The microcontroller itself generates the required pulse according to the remote command, to get variable output frequency from the inverter using the SPWM scheme. Finally the same is experimentally tested for resistive and inductive load and satisfactory result is obtained.