A reconfigurable five/seven level inverter with reduced switching losses

Here it is shown how a Multilevel Inverter (MLI) can be configured as five level or seven level inverter by including an extra switch in the circuit. A new switching configuration is proposed in which the total number of switchings over a cycle are comparatively less thus reducing the switching losses. Due to the proposed switching the RMS output voltage is also substantially increased. The proposed scheme is validated through proper simulation results.