For example , it is possible to produce a more sinusoidal wave by having split - rail direct current inputs at two voltages , or positive and negative inputs with a central ground .
Multilevel inverters provide an output waveform that exhibits multiple steps at several voltage levels .
It is possible to produce a more sinusoidal wave by having split - rail direct current inputs at two voltages , or positive and negative inputs with a central ground .
Multilevel inverters provide an output waveform that exhibits multiple steps at several voltage levels .