A novel dead-time elimination strategy with zero-crossing enhancement for voltage inverters

This presentation describes a new dead-time elimination method for a voltage inverter model. This method needs to measure the terminal voltage of power devices by a low-voltage detector circuit connected in parallel to each device. The proposed technique enables one to decrease the current total harmonic distortion and improve the current profile during zero crossing. This method is simple and it can be easily extensible for multilevel inverter models. Theoretical and simulation results are presented.