Ⅰ.引言二端和三端的 p—n—p—n 器件的开关特性和应用,近年来有了广泛的研究。p—n—p—n 四极管还能用来作为小讯号放大器。Ross 和 Skalnik 利用双晶体管模拟和简化的 h 参数等效电路,分析了 p—n—p—n 四极管的一些线性应用。然而,他们仅在每个三极管 h参数的基础上提供近似结果。在最近发表的文章中,作者导得了描述 p—n—p—n 四极管作为线性放大器运用的方程组。利用这些方程可以获得其 V—I 特性,求得低频和高频运用的小讯号等效电路,研究电路的增益与偏流,频率的关系。本文叙述的 p—n—p—n 四极管的一些线 I. INTRODUCTION The switching characteristics and applications of two-terminal and three-terminal p-n-p-n devices have been studied extensively in recent years. The p-n-p-n can also be used as a small signal amplifier. Ross and Skalnik analyzed some of the linear applications of p-n-p-n tetrodes using a two-transistor analog and simplified h-parameter equivalent circuit. However, they provide approximate results based on the h parameters of each transistor. In a recently published article, the authors drew on equations describing the use of p-n-p-n tetrodes as linear amplifiers. The V-I characteristics can be obtained by using these equations and the small signal equivalent circuit for low frequency and high frequency operation can be obtained. The relationship between gain and bias current and frequency of the circuit is studied. This article describes some of the p-n-p-n quadruplet lines