Design and development of type-B pulse forming network for generation of low voltage rectangular pulses

Rectangular pulses of short duration find more importance in applications like charged particle accelerators, microwave sources, Lasers and microbial deactivation in food. Rectangular pulses of short duration in the order of few microseconds are generated commonly by using pulse forming networks. In the present work, a low voltage, type-B Pulse Forming Network (PFN) for generating rectangular pulses of duration 1.8 μs is designed, and developed. Simulation is carried out in PSPICETM and the effect of first and last stage inductances on the overshoot of the output waveform is studied. The characteristic impedance of the type-B PFN is 10 Ω. Load impedance is chosen as 10 Ω to discharge maximum energy of the generated pulses effectively into the load circuit. A low voltage rectangular pulse of output voltage of 560 V and duration 1.6 μs is achieved experimentally