DSC-based all-digital SiC inversion type multi-function argon arc welding power supply

A DSC-based all-digital SiC inversion type multi-function argon arc welding power supply, comprising a main circuit and a DSC control circuit;

• the main circuit comprising a common mode noise suppression module, a power frequency rectification and filtering module, a SiC inversion and commutation module, a power transformer, a SiC rectification and smoothing module and a non-contact arc ignition module that are connected in sequence, wherein the common mode noise suppression module is connected to an external AC input power, while the SiC rectification and smoothing module and the non-contact arc ignition module are connected to external arc load respectively;
• the DSC control circuit comprising a DSC minimum system, and a human-machine interaction module, a SiC high-frequency drive module and an electrical load signal detection module which are respectively connected to the DSC minimum system;
• wherein the DSC minimum system comprises a DSC microprocessor, a 3.3V power supply module, an external clock oscillation module, a reset module, a JTAG debug interface and auxiliary peripheral circuits, the SiC high-frequency drive module is connected to the SiC inversion and commutation module, the electrical load signal detection module is connected to the arc load, and the non-contact arc ignition module is connected to the DSC minimum system.