A Novel Plasma Cutting Power Supply

摘要

This paper presents a method that the designed half-bridge inverter air plasma cutting machine power supply uses the non high frequency arc technology and analyzes the working principle of non high frequency arc, and gives detailed work cutting process timing diagram. The cutting machine power supply, it uses the controller-TMS320F2812 to control the entire power system, and the use of the chip UC3854 power factor correction circuit. When compared with the traditional cutting power supply, the designed plasma cutting power supply has a simple structure, low energy consumption, small electromagnetic interference and so on. In addition, the power system has been modeling and simulation, and built a prototype and verified.