中文摘要：

介绍了一种用于固态脉冲调制器的触发和控制系统。用CPLD非常方便地产生了固态调制器触发所需要的频率和宽度均可调节的脉冲信号，为了将来能通过网络在上位机上远程调节调制器触发信号，我们使用了单片机AT89C51和网卡控制芯片RTL8019AS。本文介绍了整个系统软硬件的设计原理。

英文摘要：

A kind of solid state modulator trigger control system based on CPLD, microprocessor and network is introduced. The trigger signal is generated by EPMT128S, and both frequency and width of the trigger signal are controlled by AT89C51 which is connected to the network through RTL8019AS. The details of hardware and software are also given in this paper.