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Abstract

In this paper, a multi-level inverter (MLI) based on switch ladder topology ispresented. In conventional MLI, the arrangement of power semi-conductor switches is in series and alarge number of switches conduct at the same time. Moreover, if one switch fails to conduct, the wholeoutput voltage collapses. Thus, the conventional MLIs are less reliable and they have high on-statevoltage drop. As compared to the conventional MLIs, the switch ladder inverter topology presented inthis paper deploys parallel arrangement of controlled switches. Switch ladder topology uses lessnumber of controlled switches, gate drive circuits and diodes. Therefore, it has minimal on-statevoltage drop, less conduction losses, less switching complexity and high reliability.MATLAB/Simulink platform is chosen to simulate the proposed Switch Ladder Multi-Level Inverter.The viability of the proposed inverter has been proven through hardware results as well.