User Manual

ionMig 200 PFC

installment, mold mend, petrochemical, architecture decoration, car repair, bicycle, handicraft and

common manufacture.

MAG--Metal Active Gas Welding

MIG--Metal Insert Gas Welding

2.2 Working Principle

The working principle of MIG SERIES arc welding machine is shown as the following figure.

Single-phase 220V work frequency AC is rectified into DC（350V）, then is converted to

medium frequency AC (about 40KHz) by inverter device (IGBT), after reducing voltage by

medium transformer (the main transformer) and rectifying by medium frequency rectifier (fast

recovery diodes), and is outputted by inductance filtering. The circuit adopts current feedback

control technology to insure current output stably when MMA or TIG. And adopts voltage

feedback control technology to insure voltage output stably when MIG. Meanwhile, the

welding current parameter can be adjusted continuously and infinitely to meet with the

requirements of welding craft.

Current sensor