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从现代控制理论的角度提出了一种基于Z-元件的V/F转换器闭环系统,并利用反馈控制原理对此闭环系统中的温度漂移问题进行了详细的论述,给出了一个在实际使用中切实可行的解决方法.因其具有电路简单、成本低廉、精度高和功耗低等优点,可替代传统的A/D转换器,作为模拟传感器和数字计算机之间的通讯接口.
From the perspective of modern control theory, a closed-loop system based on Z-element V / F converter is proposed. The temperature drift in the closed-loop system is discussed in detail by using the feedback control principle. Because it has the advantages of simple circuit, low cost, high precision and low power consumption, it can replace the traditional A / D converter as the communication interface between analog sensor and digital computer.