Research on Digital Soft-switch Welding/Cutting Inverter Power Source

Abstract

According to the basic characteristics of arc welding and cutting, digital control system of soft-switch arc welding/cutting inverter power source is researched and developed. This paper analyzes the operation principle and presents hardware structure about digital control system of the soft-switch arc welding/cutting inverter power source. Then the software system is designed based on phase shift realization principle, and a detailed flowchart of the main program and the interrupt service routine are given. Through plentiful experiments and tests, it can be found that the soft-switch arc welding/cutting inverter power source based on digital control system operates well in various working situations. As a result, it is thought to be suitable for arc welding/cutting applications due to its effectiveness and robustness.