A Theoretical Analysis of Boost Ratio based on Harmonics of Cockcroft-Walton Circuit with an Inductor

Abstract

The Cockcroft-Walton (CW) circuit is used in the many high-step-up isolated DC-DC converters. The input voltage in CW circuit includes some harmonic components. This paper models the frequency characteristics of a novel CW circuit, which is proposed in the past, by equivalent circuit and Fourier series expansion. It is clarified that the equivalent circuit accurately assesses the experimental frequency characteristics of the proposed CW circuit.