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叙述了逆变弧焊电源ＰＷＭ控制器的应用现状，分析了电流型ＰＷＭ控制技术与电压型ＰＷＭ控制技术的区别，详细介绍了电流型ＰＷＭ控制技术的优点及ＵＣ２８４６的工作原理、主要特点，简要介绍了ＵＣ２８４６在４００Ａ以下全桥式和半桥式逆变弧焊电源上的两种应用实例。
The application status of inverter arc welding power supply PWM controller is described. The difference between current PWM control technology and voltage PWM control technology is analyzed. The advantages of current PWM control technology and the working principle, main features and brief The application examples of UC2846 on 400A full-bridge and half-bridge inverter arc welding power supplies are introduced.