单电源运放的偏置原因分析与偏置方法  

Analysis and Approach of Single-Supply Op Amp Bias

作　　者：王晓东[1] 

机构地区：[1]武汉理工大学自动化学院,湖北武汉430070

出　　处：《现代电子技术》2006年第16期123-125,共3页Modern Electronics Technique

摘　　要：运放是模拟电路中的核心元件,近些年来单电源运放因其正常工作时只需提供单路电源的独特优点而应用日益广泛。但是单电源运放的设计却比双电源运放复杂。因此对单电源运放偏置的原因进行了深入的研究,并分析比较了各种不同偏置方法的特点,从而为正确分析和设计单电源运放偏置电路提供依据。Op amp is key component in analog circuit. In recent years,single -supply op amp is used widely because it only needs single - supply at work. But single - supply op amp is more difficult than dual - supply op amp in design. So this paper introduces the reason of single - supply op amp bias and some approaches to bias. By comparing with the different approaches to bias,this paper also gives the advice to choose the approach.

关 键 词：单电源 运算放大器 电压跟随器 偏置电压 波形 

分 类 号：TN86[电子电信—信息与通信工程]