的AN3203 EVL250W，ATX80PL：250W ATX开关电源演示板

的AN3203 EVL250W，ATX80PL：250W ATX开关电源演示板

AN3200
Application note

2.5 kW MMA welding machine

Introduction
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 appr