Table of Contents
International Journal of Plasma Science and Engineering
Volume 2008 (2008), Article ID 284549, 5 pages
Research Article

FFT Analysis of a Series Loaded Resonant Converter-Based Power Supply for Pulsed Power Applications

1Department of Electrical and Electronics Engineering, C.U. Shah College of Engineering and Technology, Wadhwan City-363030, Gujarat, India
2Department of Electrical Engineering, Maharaja Sayajirao University of Baroda (M.S.), Vadodara, 390006 Gujarat, India
3Pulsed Power Group, Pulsed Power Laboratory, Institute of Plasma Research, Gandhinagar, 382428 Gujarat, India

Received 20 June 2007; Revised 22 November 2007; Accepted 18 February 2008

Academic Editor: Andrew Christlieb

Copyright © 2008 R. B. Jadeja et al. 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.


An impulse power supply has been designed, simulated, and tested in order to feed the primary of a high-frequency transformer. Pulse power system has been widely used for plasma applications. The operational principle of the pulse power system is that the energy from the input source is stored in the capacitor bank device through a dc-dc converter. Then, when a discharging signal is given, the stored energy is released to the load. The new family of ZCS converters is suitable for high-power applications using insulated gate bipolar transistors (IGBTs). The power converter can achieve zero switching with the aid of high-frequency transformer. The device is capable of charging a 0.1 μF capacitor up to 5 kV which accounts for a charging power of 5 kJ/s. The novel control algorithm is achieved which eminently considers the nonlinear control characteristics of impulse power supply. The required charging voltage, together with the constraint on the charging time, translates into a required maximum power of 10 kW reduced in this initial version to 5 kW. The difficulty to reliably control such a power at the high-voltage side practically forbids any approach featuring a more or less stabilized DC high-voltage to be generated from a conventional 50 Hz transformer through rectification.