全固态调制器的保护技术

The Protection Technology of All-solid-state Modulator

全固态刚管调制器现阶段已广泛应用于大功率发射机、加速器等众多领域中。针对固态调制器使用过程中出现的问题,分析了其故障原因,重点介绍了为保护固态开关和调制器采用的开关管均压、驱动信号保护、高压打火保护电路、开关管状态在线监测等关键技术和措施,给出了典型的应用电路,并对应用前景进行了展望。

The all-solid-state hard tube modulator is widely used in the electro-vacuum transmitter and accelerator etc. In this paper,the troubles of the modulator using process are discussed. The fault causes are analyzed. The emphasis is placed on key technologies and measures,like switch tube voltage balance circuit,the protection of driving circuit,the protection on klystron arcing and the online detection methods of the switch tube. The typical circuit diagram is given. The prospects of the application are forecasted.