Heating module current stabilization method based on vacuum evaporation and power output system

Abstract

The invention provides a heating module current stabilization method based on vacuum evaporation and a power output system. The heating module current stabilization method based on vacuum evaporation comprises the steps that a resistance evaporation source is preheated; inputting current to the resistance evaporation source to enable the resistance evaporation source to generate heat; a wire is fed into the resistance evaporation source, and the target wire enters a molten state after being heated; fully paving a resistance evaporation source in a molten pool; increasing the magnitude of the input current based on a correction strategy; wherein the correction strategy at least comprises one or more of increasing the current along with the increase of the height of the molten pool, increasing the current along with the reduction of the internal resistance of the resistance evaporation source, and increasing the current along with the increase of the heating time. According to the current stabilizing method, the output current is reasonably and continuously increased, the defect that the evaporation heat of a constant-current power supply in the initial film forming stage is insufficient is overcome, meanwhile, the advantage that the constant-current power supply can provide stable evaporation heat is combined, and long-distance film coating is achieved.

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