Duty Ratio Characteristics of Dual 2-stage Cockcroft-Walton Circuit

Abstract

High step-down DC-DC converters and rectifiers are required for large applications such as battery chargers. We previously proposed a dual 2-stage Cockcroft-Walton (CW) circuit as a high step-down all-passive rectifier. The rectifier provides the output voltage subject to circuit parameters. This study investigates the proposed circuit's operation through numerical simulations and an experimental prototype system focusing on the input source's duty ratio. Both the numerical and experimental procedures confirm that the output voltage of the proposed dual 2-stage CW circuit is sensitive to the input source's duty ratio.