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本文讨论了脉冲调宽(带有调宽采样器的)控制系统。文章给出了这类控制系统稳态分析的严格理论,得到了估计阶跃响应稳态精度的公式,提出了按照稳态精度选择采样周期的工程方法。文章提出的理论在一个实际温度控制系统中得到了验证。
This article discusses pulse width modulation (widened sampler-based) control systems. The article gives the rigorous theory of steady state analysis of this kind of control system, and obtains the formula to estimate the steady state accuracy of step response, and proposes the engineering method of choosing the sampling period according to the steady state accuracy. The theory presented in this paper has been validated in an actual temperature control system.