| 电流源及其在电子电路中的应用研究 |
| |
| 引用本文： | 艾永乐,尹红霞.电流源及其在电子电路中的应用研究[J].焦作工学院学报,1999,18(4):281-283. |
| |
| 作者姓名： | 艾永乐 尹红霞 |
| |
| 作者单位： | 焦作工学院电气工程系!焦作454000(艾永乐)，河南轮胎股份有限公司(尹红霞) |
| |
| 摘 要： | 介绍了电子电路中常采用的单元电路———电流源的组成、工作原理以及描述电流源性能指标的定量计算及电流源主要组成形式———电流镜和微电流源， 分析了这两类电路的工作特点． 由于电流源直流电阻很小和交流电阻很大， 其作为有源负载被广泛应用在共射极放大器、共集电极放大器和差动放大器中， 以达到改善这些放大器性能的目的．
|
| 关 键 词： | 电流源 输出电阻 有源负载 |
Study on Current Source and Its Application in Electric Circuit |
| |
| Ai,YongleYin,Hongxia.Study on Current Source and Its Application in Electric Circuit[J].Journal of Jiaozuo Institute of Technology(Natural Science),1999,18(4):281-283. |
| |
| Authors: | Ai YongleYin Hongxia |
| |
| Abstract: | As an unique unit circuit,current source takes an important role in electronics.First,the construction and the working principle of unit circuit?current source which used in electronic circuit and the ration calculation describing function target of current source are introduced.Then,the major form of current source?current mirror and small?value current source are described,and the characteristics for this two circuits are analyzed in detail.Finally,for the characteristics of the small DC resistance and large AC resistance,as an active load,the current source is widely used in common collector,common emitter and differential amplifier to improve the function target of amplifier. |
| |
| Keywords: | current source output resistance active load |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
