Design of a novel multi-output synchronous trigger generator for linear transformer driver

A new triggering technology is proposed based on reversed-LTD principle, which is named LTD-trigger. It has a similar structure to LTD device, but it operates reversely relative to LTD. LTD-trigger is an inductive voltage divider contrast to LTD based on inductive voltage adder in principle. Its input port and output port is opposite to LTD configuration. With one primary fast high-voltage pulsed power supply of LTD-trigger, multichannel fast triggering pulsed voltages can be obtained by the linear inductive transformer (magnetic core) to trigger corresponding LTD switches. It reduces the delay and jitter time due to the intrinsic advantages from coaxial configuration over the conventional triggering method. With careful design, LTD-trigger can match the time sequence of triggered switches in the different cavities in LTD. The paper analyzed the working principle of LTD-trigger by establishing a circuit model and simulation. Taking some fault factors into consideration, the results showed that the LTD-trigger is reliable. At present a test stand and experiments is underway.