A Constant Voltage and Large Current Arc Welding Inverter Power Source of Double Loop Control
Abstract：Aiming at the shortcoming of traditional CO2 welding power supplysuch as one loop control,had dynamic characteristics and non-reliability,a constant voltag e and large current arc welding inverter power source machine with double loop c ontrol is introduced in the present work.Main circuit using full bridge invert c ircuit was designed,using voltage feedback as outer loop,and current feedback o f transformer primary side as inside loop.The working principle was illustrated, analysing a new control system being based on PI regulation and using PWM contro ller UC3846 as key IC.The experiment shows that the inverter power supply posses ses quick response,best stability,high reliability and larger power.
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Publication Date：2001-03-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 25-29 )