International Journal of Scientific and Research Publication (IJSRP)
In this paper, a high D.C. voltage is based on Cockcroft-Walton (CW) cascade rectifier, without using transformer. This paper is to get an output of a high dc voltage by applying input as an low DC voltage. It provides continuous input current to load with low ripple voltage and current. Moreover, based on the n-stage CW voltage multiplier, the proposed converter can provide a suitable DC source for an n + 1-level multilevel inverter. In this paper, control strategy employs two independent frequencies, one of which operates at high frequency while the other one operates at relatively low frequency.