Droop compensated pulse forming network driven pulsed transformer design

P.M. Ranon, R.L. Schlicher, J.P. O'Loughlin, D.J. Hall, M.L. Weyn, P.R. Pelletier, J.D. Sidler, W.L. Baker, M.C. Scott
7th Pulsed Power Conference  
Pulse transformers are often used in pulsed power for high voltage generation. Unfortunately, due to their transfer characteristics, transformers degrade the input pulse (i.e. limit the risetime, droop exponentially, etc). For low impedance (less than a few tens of Ohms) and long output pulse (on the order of a few microseconds) applications, it is extremely difficult, if not impossible, to use pulse transformers. We describe in this paper pulse forming networks ( PFNs) which are droop
more » ... are droop compensated to make the output pulse square for the duration of the input pulse. Using this technique, one can design a PFN which can deliver constant power to a wide range of loads (with the proper transformer load combinations) The authors have shown in an earlier paper [2] that in order to obtain a flat output pulse from a transformer, the necessat'y primary current should be as shown in Figure 1 , and is expressed as i 1 (t) = [(L 2 /M)I 2 + (R/M)I 2 tJu(t) where: i 1 ( t)
doi:10.1109/ppc.1989.767436 fatcat:6f6ypbekqfddlfcwfgpeiq7esu