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Inverter ARC welding power source, also known as ARC welding machine, is a new type of welding power source. This type of power supply generally converts the AC network voltage (50Hz) into DC through input rectifier rectification and filtering, and then through the alternating switching action of high-power switching electronic components (SCR, GTR, MOSFET or IGBT), inverts it into a medium frequency AC voltage of several kHz to tens of kHz. At the same time, it is reduced to several tens of voltage suitable for welding through a transformer, and then rectified again and output a relatively stable DC welding current through reactance filtering.
Inverter welding machines have great advantages, such as small volume and light weight of high-frequency transformers, efficiency up to 80% -90%, and energy consumption only 30% of traditional welding machines. Digital circuits can accurately adjust current and voltage, support pulse/DC output, and adapt to different process requirements. Strong functionality, including MMA, TIG, MIG, CUT etc. Stable arc, reduced spatter in high-frequency response, high weld quality, especially suitable for thin plate welding. It has automatic protection functions such as overcurrent, overheating, and undervoltage, with high safety.
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