一个开关电容电路的模拟和优化程序
A SWITCHED CAPACITOR CIRCUIT SIMULATION AND OPTIMIZATION PROGRAM
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摘要: 本文介绍了一个以分析开关电容(SC)电路为目的面向用户的通用程序。该程序可以完成对SC电路的时域、频域和灵敏度模拟,可以对SC电路进行多目标优化,并可以求得SC电路的传输极点,且对电路的输入信号、开关序列、网络拓扑没有限制,文中提出了在改进节点法基础上求出电路传输极点的方法,以贡献的方式建立求传输函数对电容比的灵敏度方程,通过线性变换求得对电容比的灵敏度的方法和SC电路的多目标优化方法。最后给出了用该程序对SC电路进行模拟和优化的两个算例。
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关键词:
Abstract: A program developed for analyzing general N-phase SC circuits is described. The program can perform the time-domain, frequency-domain and sensitivity simulation, the multiple objective optimization, and the calculation of the transfer poles of SC circuits. No topological or duty-cycle constraints are imposed on the SC circuits. The methods of calculating the SC circuits poles using modified nodal method and the circuit sensitivity with respect to capacitor ratios are given, and the multiple objective optimization method for SC circuits is developed. Two examples are included to illustrate the capabilities of the program. -
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