电子直线加速器一般使用线型脉冲调制器作为脉冲电源,利用人工线放电产生高压脉冲,其频率和稳定度主要由人工线充电系统决定。近年来大功率开关器件研究的深入及工艺的日趋成熟,使得将开关器件引入脉冲功率领域成为可能,为高压脉冲调制器的发展提供了方向。在线型高压脉冲调制器中,人工线可视为一电容器,本充电电源(图1)基于IGBT全桥变换器的串联谐振充电技术,为人工线充电时,其恒流特性使该线路抗短路能力强,同时与软开关技术结合,不仅有利于提升开关频率,而且大幅降低了开关损 Electronic linear accelerator linear pulse modulator is generally used as a pulse power supply, the use of artificial line discharge to produce high-voltage pulse, the frequency and stability of the artificial line charging system. In recent years, in-depth study of high-power switching devices and technology matures, making it possible to introduce switching devices into the field of pulsed power, providing a direction for the development of high-voltage pulse modulators. The artificial line can be regarded as a capacitor in the on-line high-voltage pulse modulator. The charging power supply (Figure 1) is based on the series resonant charging technology of IGBT full-bridge converter. When the artificial line is charged, its constant current characteristics make the line short-circuit Strong ability, combined with soft-switching technology, not only helps to improve the switching frequency, but also significantly reduces the switching loss