Cascaded Multilevel Inverter with Reduced Number of Switches

A multilevel inverter is a power electronic device that is used for high voltage and high power applications. Now a days growth of interest in multilevel inverter has been increasing because of their enormous applications. In this paper new 15-level cascaded multilevel inverter is proposed and it requires less number of switches than the conventional topology. Therefore with less number of switches, there will be reduction in gate drive circuits. This inverter is comprised of a series connection of basic unit and is able to generate positive levels at the output. In-order to generate positive and negative levels at the output, an H-bridge will be added to this inverter. All the details regarding circuit schematic, modes of operation and simulation results are presented in this paper.