Active dust fall device of direct current system

The utility model discloses an active dust suppression device of a direct current system, which comprises a dust suppression circuit, direct current voltage is input into the input end of a direct current voltage inversion unit in the dust suppression circuit, the output end of the direct current voltage inversion unit is connected with the input end of a voltage transformation unit, and the output end of the voltage transformation unit is connected with the input end of a voltage doubling rectifying unit. The output end of the voltage doubling rectifying unit is connected with the direct-current high-voltage output unit, and the direct-current high-voltage output unit outputs different voltages in a grading mode. High-voltage direct current is generated through the dust falling circuit, dust entering the direct current system is actively adsorbed on the basis of the electrostatic adsorption principle, and therefore dust falling of the direct current system is achieved. 本实用新型公开了一种直流系统的主动式降尘装置，包括降尘电路，所述降尘电路中直流