| With the development of modern science and technology, the application ofmicrocomputer becomes popular, which has already been introduced to welding powersource field. Now the tendency of development of welder is the digitize and intellectualized,as well as multi-fuctionize .A new arc welder realizes multi-function and anti-elector shock through single chipand fuzzy control . It is very useful and safe for field pipeline construction . So that theresearch of the new arc welder has great engineering practicability and theoreticalmeaning .The paper concentrates on:1,Designing the whole structure of the welder by analysis.2,Designing the hardware system with an 8031 and its extern circuits.3,Programming the software system with fuzzy control on the basis of theoreticalanalysis.4,Performing system simulation , tests and experiments of the welder.Through simulation , experiments and test ,the research of the multifunction arcwelder get the anticipative target. |