Six-gap gas switch based on resistance voltage balance and corona assisted triggering

The novel method of internal in-situ triggering in sequence could significantly reduce external trigger requirements for the linear transformer driver (LTD). In order to improve the operation reliability of the LTD device, the trigger brick switch should have a low pre-fire probability. On the other hand, for ensuring the transmission and superposition of the high-power electrical pulses according to the set sequence meanwhile reducing the complexity of the trigger system, the trigger brick switch should also have a low jitter trigger jitter under a low trigger voltage threshold. Therefore, based on resistance voltage balance and corona assisted triggering, a six-gap gas switch used for the trigger brick of the LTD is developed. The structure and working principle of the gas switch is introduced. The test platform of gas switch characteristics is established, and after the process of condition, the self-breakdown and triggering characteristics of gas switches are tested, respectively. The experimental results show that, when the charging voltage of the switch is ± 80 kV, the working coefficient is 60% and the trigger voltage is 110 kV, the jitter is lower than 1 ns, and there are no pre-fire or late-fire when the switch operates continuously for 100000 shots.