本文介绍了一种用于非熔化极焊接和等离子弧切割的时序和波形控制器，分析了它的电路组成和工作原理，并介绍了具体的应用方法。采用所研制的控制器，能降低电子控制式焊接设备的设计调试工作量，便于开发新产品。 This paper introduces a timing and waveform controller for non-melting pole welding and plasma arc cutting, analyzes its circuit composition and working principle, and introduces the specific application methods. The developed controller can reduce the design and debugging workload of the electronically controlled welding equipment and facilitate the development of new products.