A New Configurable SC-based MLI Topology with Lower Device Count

In power electronics research, the switched-capacitor (SC) unit integrated multilevel inverters (MLIs) have have received a lot of attention from researchers during the last few years. The SC-MLI is a more desirable converter than its other accessible counterparts for a variety of applications due to its inductorless and transformerless operation, intrinsic capacitor self-voltage balancing performance, and voltage-boosting features. This, together with a reduction in electromagnetic interference, makes the SC-MLI a smart choice. In the present article, an improved circuit of MLI topology has been designed with a configurable voltage levels and voltage gain. A voltage gain of 1.5 and 2.5 can be achived with the number of levels being seven and six, respectively. This change in the level count and gain is based on charging pattern of SC units. The designed topology has been simulated in PLECS with various working environments to show the performance.