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本文基于状态转移理论,分析了脉冲调宽系统的精确方法,给出了递推算式及计算程序框图,并以脉冲调宽式数字随动系统为例,应用状态转移方法计算了单位阶跃响应。文中介绍的方法具有准确反映脉冲调宽系统真实工作状态的优点。
Based on the theory of state transition, the exact method of pulse width modulation is analyzed. The recursive calculation formula and the block diagram are given. Taking the pulse width modulated digital servo system as an example, the state transition method is used to calculate the unit step response . The method described in this article has the advantage of accurately reflecting the true working state of a pulse-width modulated system.