Issues and mitigation of high voltage isolation in solid state Marx generator

A three stage Marx generator is implemented in this paper with pulse width 5 μs and repetitive frequency of output pulse is 66 Hz. The circuit is verified with simulation and hardware results with an input of 90 V. In the present work, the circuit is tested with resistive load. This paper discusses issues related with isolation of high voltage Marx generator and various methods of isolation. A high performance driver circuit for three stage Marx using optical fiber is implemented and the circuit is tested. It is found that the rise time of the output pulse of Marx circuit is improved by this method of pulse transmission by 40 ns.