用SC-nullor模型进行开关电容网络的灵敏度分析

The Sensitive Analysis of Switch Capacity Network(SCN) Using SC Nullor Model

为了方便地得到ＳＣＮ的伴随网络及有效地计算灵敏度，引入了零器模型。当运放的增益为无限大及有限值时，给出了相应的ｎｕｌｏｒ模型和电容－ｎｕｌｏｒ模型，进而将原ＳＣＮ化为ＳＣ－ｎｕｌｏｒ网络。并提出了得到其伴随网络的方法和特点，根据这些特点导出了输出量对电容和运放增益的灵敏度的计算公式。文中还给出了一种高效率求解ＳＣ－ｎｕｌｏｒ网络及其伴随网络的方法——组元电荷状态变量法，并用实例进行了验证。

The nullor model is introduced to obtain SCN accompaning network conveniently as well as to calculate the sensitivity effectively in this paper. When op amp gains are infinite as well as finit, the corresponding nullor model and capacitor nullor model are offered thereby further to convert the original SCN into SC nullor network. And also, the accompaning method and characteristics are suggested, on the basis of these characteristics, the sensitive formula for calculating the output upon capacity and op amp gains are obtained. Also, the paper presents the SC nullor network with high efficiency and a method accompaning the network——the variable method with electric charge free, which are tested by the practical examples.