Pulse generator based on open-circuit semiconductor switch

The invention discloses a pulse generator based on an open-circuit semiconductor switch. Comprising an LC type pump circuit and a two-stage DSRD switch stack body, the LC type pump circuit comprises a direct-current power supply, a preceding stage switch, two capacitors and three inductors, the input end of the direct-current power supply is a power supply end V0, the preceding stage switch is a switch K, the two capacitors are a capacitor C1 and a capacitor C2 respectively, and the three inductors are connected with the capacitor C1 and the capacitor C2 respectively. The three inductors are respectively an inductor L1, an inductor L2 and an inductor L3; the two stages of DSRD switch stacks comprise a DSRD1 semiconductor switch and a DSRD2 semiconductor switch; according to the invention, the LC oscillation circuit is adopted to provide pumping current for driving the DSRD; the preceding stage switch works under the zero-current turn-off condition, the problem that the switch is damaged due to large-current t