摘 要 参考电压源电路是模拟集成电路及电气电子设备的基本组成单元。一个应用广泛的基本电路。我们所说的参考电压源，就是能够提供高稳定性的基准电源的电路，它们之间的参考电压和电源，工艺参数，温度的变化关系是非常小的。然而，它的温度稳定性和抗噪声性能够影响到整个电路系统。该系统的精度在很大程度上取决于内部或外部的基准精度。假如没有一个满足要求的参考电路，它不就能正确和有效的实现系统设定的性能。本文的目的是基于双极晶体管基准源的 TL431 可调稳压器集成电路的仿真与分析。本文首先介绍了基准电压源的国内外进展现状以及趋势。然后详细介绍基准电压源电路的基本结构以及基本的原理，并对几种不同的双极型基准电压源电路做以简单的介绍。其次对电路仿真软件进行介绍，最后运用电路仿真软件 specture 对 TL431 串联集成稳压基准电路进行仿真并详细分析其结果。仿真分析的类型主要有直流工作点分析，沟通分析，傅里叶分析，噪声分析，噪声系数分析，失真分析，直流扫描分析，灵敏度分析，参数扫描分析，温度扫描分析等。仿真分析结果显示，基准电压源电路具有较高的稳定性，电压源的直流输出电平比较稳定，而且这个直流电平对电源电压和温度不敏感。关键词：基准电压源,TL431,仿真分析,Specture,温度系数Abstract The reference voltage source is a basic module of the very wide range of applications in the design of analog integrated circuits. What we call the reference voltage source is able to power provide high stability of the baseline power to the circuit, this relationship between the picture reference and the power, process parameters and temperature is very small, however, its import temperature stability and resistance to noise performance of with the accuracy and performance of the entire circuit system. The accuracy of the system to a large extent depends on the begin is accuracy of the internal or external reference, there is no one to meet the requirements of the is reference circuit, it can not correct and effective system of pre-set performance. The purpose of this paper is based on bipo...
