Comparison of pulse forming networks for Marx generator

Pulse Forming Network (PFN) is a network consisting of capacitor and inductor in series and parallel. A true squared shape pulse can be achieved using PFN and also pulse width, pulse power etc. can be adjusted by varying number of PFN sections and their connections. This paper deals with six different PFN connections and their simulation results. Comparisons of all six PFNs are done based on type, output voltage, pulse power, load resistance and rise time. A 20 kV input DC supply is used and it is found that output voltage for ten sections and one stage of PFN is varied between 10kV to 20 kV. Rise time of output pulse is achieved in the range of 350 ns to 1.8 μs.