High voltage, high current, high di/dt solid state switch

S.C. Glidden
2001 IEE Symposium Pulsed Power 2001   unpublished
A high voltage, high di/dt, modular solid state switch intended to replace thyratrons in high power modular applications is under development. This paper describes results of testing a switch module with a 10kV, 6kA, 30 kA/µs, 3µs PFN, under normal and load fault conditions. Initial results of multiple module tests with a 30kV PFN are also be presented. The switch module uses 3, 5kV, 13mm diameter thyristors connected in series. These thyristors were developed specifically for pulsed power
more » ... cations, and have an interdigitated gate/cathode geometry to minimize turn-on losses and maximize di/dt. The module's trigger circuit uses the switched energy to drive the thyristor gates, eliminating the need for an external gate drive power supply. A 35V, 1A, pulse triggers the module. The compact, modular package design facilitates the development of drop-in replacement switches for thyratrons with voltage ratings of >60 kV.
doi:10.1049/ic:20010122 fatcat:m272hjrnabhi5ntqv3rjjlvd7u