Design and simulation of a self-triggering linear transformer driver based on capacitive coupling

As a novel pulsed power technology, linear transformer driver (LTD) developed rapidly recent years, it is able to generate high power pulses with rising time less than 100ns and drive the load directly without any pulse compression. With the expansion of the LTD´s scale, the problem that whether the switches can be reliably turned on and whether they can be triggered synchronously becomes the key point of LTD technology. In this paper, a self-triggering linear transformer driver is described. Through adding a trggering cylinder between the central conductor and the LTD cavity, inductive high voltage pulse can be obtained on the cylinder during preceding cavities discharge. The pulse can be used to trigger the swithches automaticly. To verify the performance of the novel LTD, the circuit is analyzed through detailed simulation. At last, the whole system and the simulation results are discussed.