Abstract
Increasing number of levels has always been a major motivation in the research of multi level inverters. This paper proposes a level doubling network and use this to almost double the number of levels of a multilevel inverter topology. While the approach is suitable to almost all the existing configurations, the unit works best for cascaded H-bridge topology. It has been shown that the level doubling network (LDN) does not consume any power over a complete cycle. The LDN is basically a capacitor fed half bridge topology where the capacitor voltage is self regulated. The proposal of the LDN opens up a new topological variation for the existing configurations. Operation of the circuit is verified by simulation result using MATLAB/Simulink and experiments from laboratory prototype.
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