中文摘要：

基于同步信号设计了一种可实现相互之间高压隔离的IGBT多路延时驱动电路系统．并应用到Marx电路中，实现了可柔性调节的阶梯型脉冲高压输出。试验结果表明，延时驱动电路可实现最大30μs的延时，且具有IGBT驱动电压欠压保护、自给反向栅压等功能，同时场效应管的存在抑制了栅射极电压振荡。驱动信号高压隔离变压器为单原边多副边结构，简单紧凑，通过副边数目的增减，可驱动不同级数的MarX电路，具有扩展性好的优点。过流保护电路反应速度快，IGBT关断可靠．可在2μs之内抑制短路电流继续上升。该驱动电路应用于10级的Marx电路中，实现了峰值电压10kV，脉冲宽度30μs，最大电压阶数10阶的脉冲高压输出。

英文摘要：

A multi-channel time-delayed GBT（Insulated Gate Bipolar Transistor） driving circuit system is designed based on synchronous signals,which is applied to Marx circuit for outputting soft-adjustable discrete-step high-voltage pulse. The high-voltage channels are isolated from each other. Experimental results show that,the driving circuit has the maximum time delay of 30 Ixs. It has under-voltage protection, and provides minus-voltage pulses to gate and applies MOSFET to inhibit the gate-emitter voltage oscillation. The high-voltage isolation transformer of driving signal has a compact structure of single primary winding and multiple secondary windings to drive multi-stage Marx circuit with good expandability. Its over-current protection has fast response,which turns IGBT off reliably to suppress the short-circuit current within 2 μs. It is applied in the ten-stage Marx circuit to output 10 kV-30 μs pulse with up to ten steps.