Lincoln Electric SP-100 Welder User Manual


 
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SP-100
Theory of Operation........................................................................................Section E
Input Line Voltage, Fan Motor and Main Transformer...........................................E-1
Output Control, Rectification and Voltage Feedback.............................................E-2
Trigger, Gas Solenoid and Wire Drive ..................................................................E-3
SCR Operation ......................................................................................................E-4
Thermal Protection ................................................................................................E-5
Section E
TABLE OF CONTENTS
– THEORY OF OPERATION –