二极管的线性等效原理探究  

Exploration of the Linear Equivalence Principle of Diode

作　　者：杜世超 孔志勇 DU Shichao;KONG Zhiyong(Shandong University of Traditional Chinese Medicine,Jinan,Shandong Province,250000 China)

机构地区：[1]山东中医药大学,山东济南250000

出　　处：《科技资讯》2024年第1期224-229,共6页Science & Technology Information

基　　金：教育部产学合作协同育人项目(项目编号:220606071144427);山东中医药大学2022年教育教学研究课题(项目编号:ZYY2022033)。

摘　　要：二极管伏安特性方程具有一定的局限性,这使得将二极管电路等效为线性电路变得尤为重要。在小信号思想下,利用泰勒级数并忽略高次项误差的方法,以及图解法对二极管在其应用电路中的线性等效原理进行论证,通过计算得出结论,在小信号误差足够小时,二极管可以等效为线性元件。同时,对叠加定理进行了一定说明,证明了此探究过程并没有使用叠加定理。The volt-ampere characteristic equation of diode has certain limitations,which makes it particularly important to equate diode circuits to linear circuits.Under the small-signal idea,this paper demonstrates the linear equivalence principle of diode in its application circuit by using the Taylor series and neglecting the errors of high-order terms,as well as the graphical method,and concludes by calculation that diode can be equated to a linear element when the small-signal error is small enough.And this paper provides some explanation of the superposition theorem,and proves that this investigation process does not use the superposition theorem.

关 键 词：二极管 小信号 泰勒级数 叠加定理 线性等效 

分 类 号：TN301.1[电子电信—物理电子学]