Pulse ionization power supply system and arc extinguishing device thereof

The utility model provides a pulse ionization power supply system and an arc extinguishing device thereof, the device comprises at least one arc extinguishing assembly or at least two arc extinguishing assemblies connected in parallel, and each arc extinguishing assembly comprises a power supply input end, a current feedback module, a voltage feedback module, an AND gate module and an arc extinguishing response module. According to the arc extinguishing device of the pulse ionization power supply system, when the operational amplifier current output by the current feedback module and the operational amplifier voltage output by the voltage feedback module simultaneously reach the arc extinguishing condition, the AND gate module outputs a high level, and at the moment, the arc extinguishing time is adjusted through the arc extinguishing response module to carry out arc extinguishing on sampling currents with different magnitudes; therefore, the current is stabilized, so that the power supply of the pulse ioniza