介绍用于高功率微波器件测试的400 kW 脉冲步进调制器高压全固态电源调试和应用研究,包括当负载过荷时使系统切断高压保护速度提高到10 μs内的方法;故障时进入弧道能量的研究;通过改变接地方式对系统管体电流波形测量的影响研究.实验表明:这种原理的大功率全固态电源具有突出的抗干扰性,并且维修方便,效率高,是大功率微波器件热测台的优选方案.

The experimental studies of 400 kW PSM high voltage power supply are summarized in this paper. Firstly, the rapid protective method to shut down high voltage in 10 μs under over-current situation is described. The arc-deposited energy in the process of klystron breakdown is studied. The body-current waveforms of the klystron in different grounding modes are compared. The experimental results show that this type of all-solid state high voltage power supply has many advantages, such as the high anti-jamming capability, high efficiency and maintainability. It provides a highly beneficial path for high power vacuum microwave devices test.