Intermittent auxiliary source power supply device with high isolation voltage resistance and high interference immunity

The invention provides an intermittent auxiliary source power supply device with high isolation voltage resistance and high interference immunity, which comprises a plurality of Marx power modules, each power module is composed of multiple stages of Marx circuits, each stage of Marx circuit comprises an MOSFET (Metal Oxide Semiconductor Field Effect Transistor), a commercial DC-DC (Direct Current-Direct Current) auxiliary source direct current power supply module supplies power to an MOSFET driving circuit, and the Marx power modules are isolated by ultrafast recovery isolation diodes. The problem of isolation and voltage resistance of the auxiliary source of the high-voltage all-solid-state Marx nanosecond pulse power supply is solved. Interference ripples of the auxiliary source circuit in the pulse discharge period are effectively reduced, the influence of pulse interference on the Marx circuit is reduced, and the output waveform is more stable. The problem of isolation voltage resistance of an auxiliary s