基于半导体开关和磁开关的全固态脉冲电源

利用磁开关来改善全固态Marx发生器的脉冲上升沿,并构建出一套脉冲电源。该套脉冲源包括基于IGBT半桥模块的Marx发生器和由磁开关与锐化电容构成的脉冲陡化电路。该电源用原边一匝的脉冲变压器为IGBT提供驱动信号,并且原副边绕组均采用同轴线以屏蔽电磁干扰;在门极采用无源过流保护的方法,以防止负载短路对IGBT放电开关造成损坏。实验结果表明:在电压10 kV,电流170 A的情况下,脉冲前沿由1.5μs压缩到了200 ns,同时IGBT的开通损耗由原来的10 mJ降到不足1 mJ。

All solid-state pulsed power generator with semiconductor and magnetic switches

The method of using magnetic switches is proposed to reduce the voltage rise time of the all solid-state pulse source and a generator is constructed.This generator consists of a Marx modulator based on isolated gate bipolar thyristor(IGBT) half bridge modules and a magnetic pulse sharpening circuit,which is employed to compress the rising edge of the Marx output pulse.The approach of using multiple small driving transformers,one-turn primary windings of which are in series connection,provides a simple way f...