The ultra-low impedance high-speed welding power supply is independently developed by our company and has obtained national patents. It has mature technology and is stable and reliable. Its outstanding technical characteristics are that the welding current square wave is steeper, the current rise rate is higher, and it is suitable for high-speed rolling spot welding. The ultra-low impedance welding power supply does not require rectifier tubes, which not only eliminates the worry of rectifier tube damage, but also has no rectification loss. It saves about 25% electricity compared to the medium frequency inverter welding power supply, and significantly reduces the long-term use cost of users.