本文介绍用时序机流程图设计数字系统的方法。这种方法的基本设计思想是用时序机流程图和降维图来描述数字系统的控制过程,再选择适当的集成电路来实现。本文通过对三相积分式数模转换器控制逻辑的设计来说明这种设计方法。 This article describes how to design digital systems using sequential flowcharts. The basic design idea of ​​this method is to use the timing machine flow chart and dimensionality reduction to describe the digital system control process, and then select the appropriate integrated circuit to achieve. This paper describes the design method of the control logic of the three-phase integrated digital-to-analog converter.