Nonlinear Auto-Companding Method for Behavioral Modeling of Switched-Current Circuits  

非线性自动压扩的开关电流电路行为级建模方法(英文)

作　　者：王伟[1] 曾璇[1] 陶俊[1] 苏仰峰[2] 唐璞山[1] 

机构地区：[1]复旦大学微电子系专用集成电路与系统国家重点实验室,上海200433 [2]复旦大学数学系,上海200433

出　　处：《Journal of Semiconductors》2002年第12期1254-1261,共8页半导体学报（英文版）

基　　金：国家自然科学基金 (批准号 :6980 60 0 4,6992 840 2 ,60 1760 17) ;教育部科学与技术研究重点项目 (No.0 2 0 95 ) ;教育部博士点基金 (No.2 0 0 0 0 2 462 8) ;上海科学与技术委员会项目 (No.0 1JC14 0 14 );上海应用材料研究与发展基金资助项目~~

摘　　要：A wavelet collocation method with nonlinear auto companding is proposed for behavioral modeling of switched current circuits.The companding function is automatically constructed according to the initial error distribution obtained through approximating the input output function of the SI circuit by conventional wavelet collocation method.In practical applications,the proposed method is a general purpose approach,by which both the small signal effect and the large signal effect are modeled in a unified formulation to ease the process of modeling and simulation.Compared with the published modeling approaches,the proposed nonlinear auto companding method works more efficiently not only in controlling the error distribution but also in reducing the modeling errors.To demonstrate the promising features of the proposed method,several SI circuits are employed as examples to be modeled and simulated.提出了一种新的基于非线性压扩函数自动构造的开关电流电路行为级建模方法 ,从而简化电路的建模和仿真 .与原有的建模方法相比 ,该方法不仅可以对模型的误差分布进行有效地调控 ,而且能够降低模型的误差 .为了验证本文所提出的行为级建模方法 ,对几种开关电流电路进行了建模和模拟试验 .

关 键 词：wavelet collocation method behavioral modeling switched  current circuits nonlinear auto  companding 

分 类 号：TP17[自动化与计算机技术—控制理论与控制工程]