基于模糊逻辑的两级运算放大器宏模型  

Macromodel of Two Stage Operational Amplifier Based on Fuzzy Logic

作　　者：詹璐瑶[1] 郭裕顺[1] 

机构地区：[1]杭州电子科技大学电子信息学院,杭州310018

出　　处：《电子器件》2013年第5期672-675,共4页Chinese Journal of Electron Devices

摘　　要：提出了一种基于模糊逻辑的两级运算放大器宏模型的建模方法。利用了两级运放电路内部的结构特点与工作特性等先验知识,根据结构知识确定模型的整体结构;根据工作特性确定初始模糊逻辑模型的形式及参数。将模型计算得到的开环结构频率响应、瞬态性能和仿真时间与SPICE仿真结果进行比较,取得了较好的效果,证明了建模方法的有效性。A new approach for modeling of two stage op amp macromodel based on fuzzy logic is proposed. By considering the prior knowledge of structural characteristics and operating characteristics,the overall model structure is determined by the knowledge of the circuit structure; the form and the parameters of the initial fuzzy logic model are determined by the operating characteristics. Through the model,we calculate the open loop frequency response,transient performance and simulation time. By comparing above data with the simulation results of SPICE,the validity of the model is demonstrated.

关 键 词：模糊逻辑 运算放大器 宏模型 结构分解 

分 类 号：TN401[电子电信—微电子学与固体电子学]