Microcontroller-Based Single Phase Inverter Using a New Switching Strategy

In this paper, we present a single-phase inverter using a new switching strategy based on the use of pre-calculated switching angles. A microcontroller system is used to control the inverter switching process. A passive filter using polarized filtering capacitors is used to obtain substantial reduction of the harmonic rate in the main output voltage source. Both simulation and experimental results are given verifying substantial reduction of total harmonic distortion