Plasma cutting machines use IGBT based inverters
Plasma cutting is a procedure for cutting metal (mainly steel) of various sizes and thickness using the plasma torch. This plasma torch is adequately hot to melt the metal that is cut and it also moves quickly to blow the metal far from the present cut. Plasma arc cutters deploy the Insulated Gate Bipolar Transistor (IGBT) plasma cutting technology to provide more commercial plasma cutting equipment. The IGBT plasma cutters take up a different method to start the pilot arc and are better suited for professional environments. Many IGBT plasma metal cutters often deploy high frequency starting technology, high voltage circuit just for the starting process while others use Pilot Arc starting technology, where the torch enables a constant arc without touching the work piece. The Insulated Gate Bipolar Transistor (IGBT) versus the Metal Oxide Semi-conductor Field Effect Transistor (MOSFET) has been a controversial subject ever since the IGBT technology came into being in the 1980s. IGBT technology for welding applications has certainly proved to more effectively handle the rigorous demands the high duty cycles welders as it offers higher voltage capacities and heat tolerances than the earlier MOSFET.