Double-pulse mig welding power supply based on sic power device

A double-pulse MIG welding power supply based on a SiC power device, the double-pulse MIG welding power supply comprising a main circuit and a digital control circuit, wherein the main circuit comprises a power frequency rectifying and filtering module, an SiC high-frequency inversion module I, a high-frequency transformer I and a SiC fast full-wave rectifying and filtering module I, wherein same are connected in sequence, with the power frequency rectifying and filtering module being connected to a three-phase alternating-current power supply, and the SiC fast full-wave rectifying and filtering module I being connected to a load; and the digital control circuit comprises a digital man-machine interaction module, a core control module, an SiC high-frequency driving module, a load voltage and current detection feedback module and a wire feeding control module. The power supply can take both a high power and a high inversion frequency into consideration, is helpful for the implementation of energy control refinement, achieves the effects of a low energy consumption, a high efficiency and a high energy density, and can realize the full potential of a double-pulse welding process.