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2.5kW MMA welding machine

Posted: 15 Sep 2010     Print Version  Bookmark and Share

Keywords:AC/DC converter  current supply  welding process 

In this application note, a power AC/DC converter, suitable to be used as the current supply for the MMA welding process, is described.

The MMA welding method is the most common method used for welding iron or steel. Usually this method, also the most simple, is dedicated to small home repairs but also to light professional use.

In recent years, the availability of low cost and reliable solutions, based on power electronics, has moved the approach to this application from a standard magnetic solution, based on a low frequency iron transformer, to a high frequency switching solution. This gives the possibility of having compact and light solutions at a relatively low price. The electronic control used on modern welding machines allows a simple and safe use, so even an unskilled person can use it with good results in terms of weld quality.

View the PDF document for more information.

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