目前自动控制系统中,广泛地应用硅可控元件,“门”元件或其他数字控制元件。如硅可控中频电源,开关式稳压电源,硅可控伺服系统等,都是利用可控硅或“门”作为控制元件的。这类系统均属调宽式断续控制系统,本质上都是非线性系统。在一般情况下,难以用解析方法分析。寻求一种近似分析方法,对于这类系统的分析、设计有很 At present, in the automatic control system, silicon controllable components, “gate” components or other digital control components are widely used. Such as silicon controllable IF power supply, switching power supply, silicon controllable servo system, are the use of SCR or “door” as a control element. These types of systems are wide modulation intermittent control system, essentially non-linear system. Under normal circumstances, it is difficult to analyze by analytical method. Seeking a method of approximate analysis, for the analysis of such systems, the design is very