A Novel Asymmetric 17 L Switched Capacitor Inverter without Power Conversion Circuits

A novel step-down multilevel Inverter (MLI) is designed using the Switched Capacitor Inverter (SCI) configuration. This design uses fewer components to produce 17 asymmetric levels in its output. In addition to topology, a unique pulse width modulation (PWM) strategy is adopted to generate asymmetric step-down voltage levels, which also aids in generating step-down voltage levels. Many researchers have designed different MLI topologies for step-up and step-down configurations using intermediate circuits (DC/DC, AC/DC, AC/AC). However, only in this work is the step-down MLI designed without intermediate power conversion circuits. The main advantage of the proposed inverter is to generate different step-down voltage levels. Finally, a thorough examination and review of alternative multilevel inverters have been conducted to validate the supremacy of the proposed step-down SCI. The results show that the proposed step-down SCI produces high efficiency, around 90%, and fewer losses.