基于感应变压器原理的多路开关同步触发技术

为满足直线变压器驱动源(LTD)中大规模开关同步触发的技术需求，提出了一种采用逆LTD结构、基于感应变压器原理的多路LTD开关同步触发技术（LTD-trigger）。它的工作原理类似若干个串联工作的脉冲变压器，即初级输入一个高压快脉冲，通过脉冲变压器的感应耦合后在次级输出多路的同步触发脉冲，且能够与LTD中的气体开关形成很好的对应关系。与传统的触发技术相比，LTD-trigger的同轴结构有效地减小了触发脉冲的延时与抖动，并且通过合理设计，能够满足LTD模块对于同步触发的要求。分析了LTD-trigger的工作原理，建立了电路模型和仿真模型，通过仿真结果和一些故障模式分析，结合已开展的初步实验结果，验证了同步触发技术的可行性。

Multi-output synchronous triggering technology based on inductive transformer principle

For the requirements of triggering numerous gas switches in linear transformer drivers (LTD) synchronously, a multi-output synchronous triggering technology named LTD-trigger is proposed based on the reversed-LTD configuration and inductive transformer principle. It operates like numbers of pulse transformer in series. With one primary fast high-voltage pulsed power supply, multichannel fast triggering pulses can be obtained through the inductive coupling of a pulse transformer at secondary, corresponding to gas switches in LTDs. It effectively reduces the delay and jitter time due to the intrinsic advantages of the coaxial configuration compared with the conventional triggering method. With careful design, LTD-trigger can meet the requirement for switches in LTDs. This paper analyzed the working principle of LTD-trigger by establishing a circuit model and simulation. With analysis of some fault modes and preliminary experiments, the feasibity of LTD-trigger is confirmed.