A new triggering technology based on inductive transformer for linear transformer driver (LTD) switches

This paper explores the feasibility of a new triggering technology that is based on reversed-LTD (linear transformer driver) principle. The triggering technology which is named as LTD-trigger has a similar structure to LTD device, but it operates reversely relative to LTD. The LTD-trigger is small size and can obtain multiple trigger pulsed voltages flexible with one single primary high-voltage pulsed power supply. It reduces the delay and jitter time due to the intrinsic advantages from coaxial configuration over the conventional triggering method. The paper analyzed the working principle of LTD-trigger by establishing an equivalent circuit model and an experimental prototype, which is able to generate 20 trigger pulses with voltage amplitude of about 22 kV and rise time of about 75 ns. Simulation and experimental results show a good performance of synchronization among the output trigger pulses of different cavities. Taking some fault factors into consideration, the experimental results show the reliability of LTD-trigger.