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1.5 μs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 for gate drive. Coaxial cables are employed as both primary and secondary windings of these transformers for electro-magnetic interference (EMI) shielding. A passive over-current protection measure is adopted so as to promise safe operation of the discharging IGBTs. The experimental