| 差分-运放电流并联负反馈的理论计算与仿真分析 |
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| 引用本文： | 杨一军,陈得宝,毛培.差分-运放电流并联负反馈的理论计算与仿真分析[J].淮北煤炭师范学院学报(自然科学版),2010,31(3). |
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| 作者姓名： | 杨一军 陈得宝 毛培 |
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| 作者单位： | 1. 淮北师范大学物理与电子信息学院,安徽,淮北,235000
2. 上海海事大学信息工程学院,上海,200135 |
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| 基金项目： | 安徽省教育厅教研项目，淮北煤炭师范学院资助项目 |
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| 摘 要： | 构建了直接耦合方式下的差分-运放电流负反馈放大电路,根据多级放大器增益的计算方法,计算了基本放大器的电压增益,进而得电流增益.另外采用微变等效电路方法,得到了反馈放大器的电流增益,两者满足负反馈放大电路中的基本关系.启用仿真软件EWB,基本放大器和反馈放大器的仿真结果与理论计算一致.
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| 关 键 词： | 负反馈 差分-运放放大电路 |
Theoretical Calculations and Simulation Analysis in Differential-Operational Amplify Current with Parallel Negative Feedback of Circuit |
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| YANG Yi-jun,CHEN De-bao,MAO Pei.Theoretical Calculations and Simulation Analysis in Differential-Operational Amplify Current with Parallel Negative Feedback of Circuit[J].Journal of Huaibei Coal Industry Teachers College(Natural Science edition),2010,31(3). |
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| Authors: | YANG Yi-jun CHEN De-bao MAO Pei |
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| Institution: | YANG Yi-jun1,CHEN De-bao1,MAO Pei2(1.School of Physics and Electronic Information,Huaibei Normal University,235000,Huaibei,Anhui,China,2.Information Engineering College in Shanghai Maritime University,200135,Shanghai,China) |
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| Abstract: | Differential-operational amplify current with parallel negative feedback of circuit is designed,current gain is achieved by calculating the basic amplifier voltage gain according to the calculating method for multistage amplifier.Moreover,current gain of feedback amplifier is also derived by solving the node equations of small-signal equivalent circuit,the results show that the basic relationship of negative feedback amplifier circuit is satisfied in the two methods.Furthermore,the result of the basic ampli... |
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| Keywords: | EWB |
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