SIC high-efficiency switch welding machine is a typical AC-DC-AC-DC-AC frequency conversion structure. The rectifier adopts a three-phase bridge rectifier circuit. The output voltage adjusted by IGBT, Then the SIC inverter generates a high-frequency AC of 300KHZ. The SIC silicon carbide high-efficiency switch welding machine adopts a modular parallel structure to expand the power supply. It consists of a rectification and power regulation unit composed of IGBT and fast recovery diode, with a density of 100-150KW. Each high-frequency inverter unit is divided into 30-60KW units according to different frequencies.
The entire switch integrated welding machine has a compact structure, small size, easy maintenance, and low failure rate. To effectively and quickly prevent various faults in parallel inverters, our company has adopted a unique, stable and reliable rectifier inverter protection circuit to ensure the safe and reliable operation of the inverter.
