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Journal of Electrical and Computer Engineering
Volume 2017 (2017), Article ID 4805268, 10 pages
https://doi.org/10.1155/2017/4805268
Research Article

A Comparative Study of Symmetrical Cockcroft-Walton Voltage Multipliers

Laser & Optics Research School, NSTRI, Tehran 14399-51113, Iran

Correspondence should be addressed to Mohsen Ruzbehani; moc.oohay@inahebzurm

Received 18 July 2016; Accepted 18 December 2016; Published 16 January 2017

Academic Editor: George S. Tombras

Copyright © 2017 Mohsen Ruzbehani. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Decades after invention of the Cockcroft-Walton voltage multiplier, it is still being used in broad range of high voltage and ac to dc applications. High voltage ratio, low voltage stress on components, compactness, and high efficiency are its main features. Due to the problems of original circuit, reduction of output ripple and increase of accessible voltage level were the motivations for scientist to propose new topologies. In this article a comparative study on these voltage multipliers was presented. By simulations and experimental prototypes, characteristics of the topologies have been compared. In addition to the performances, components count, voltage stress on the components, and the difficulty and cost of construction are other factors which have been considered in this comparison. An easy to use table which summarized the characteristics of VMs was developed, which can be used as a decision mean for selecting of a topology based on the requirements. It is shown that, due to the application, sometimes a simple and not very famous topology is more effective than a famous one.