CHARACTERIZATION AND REALIZATION OF AN ASYMMETRICAL-COMPENSATED PICHUGIN PULSE-GENERATOR (120 KV, 1 KHZ)

The operation of Pichugin pulse generators (named after their Russian inventor) is studied. A set of equations for a one-stage generator ena bles us to point up the important frequency properties of thr: magneti c core transformer. An analytical and numerical study of a three-stage generator is performed. Improvements, concerning the voltage gain, ar e suggested; the consequences on the rise time value are analysed. A n ew conception method, based on compensated and asymmetrical stages, is proposed. It is a compromise solution to decrease the rise time value and to increase the voltage gain. By using this structure, the realiz ation of a 120 kV; 145 ns rise time three-stage pulser is proposed; it s operating at a frequency greater than 1 kHz is studied.