An efficient and high gain switched-capacitor based multi-level inverter

Abstract

A new switching-capacitor-based boosting multilevel inverter is described in this paper. A nine-level voltage waveform is produced using 10 switches, one-diode, and two-capacitors. Each fundamental cycle contains numerous occurrences of capacitor voltages being linked in parallel with the source voltage, resulting in self-balancing capacitor voltages. Proposed topology has built in polarity changing ability so no H-bridge is required. This paper describes a simple pulse-width modulation system based on logic gates that maintains power balance among the capacitors. For obtaining the higher voltage gain extended topology of proposed topology is also presented. The prototype’s experimental results are provided for verifying the working and boosting capability by four times of source voltage. A thorough comparison with contemporary topologies demonstrates the cost-effectiveness of the suggested topology, as well as the fact that it is a simpler construction that requires less space and consumption of resources.