| 负反馈放大电路的仿真分析与理论计算 |
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| 引用本文： | 杨一军,陈得宝.负反馈放大电路的仿真分析与理论计算[J].安徽教育学院学报,2008,26(6). |
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| 作者姓名： | 杨一军 陈得宝 |
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| 作者单位： | 淮北煤炭师范学院物理系,安徽,淮北,235000 |
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| 基金项目： | 安徽省教育厅资助项目，淮北煤炭师范学院2008教研项目 |
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| 摘 要： | 采用方框图分析法,对所设计的由运算放大器构成的电压串联负反馈放大电路进行了仿真分析和理论计算.两者结果一致表明:闭环增益与开环增益满足基本关系式;引入负反馈后稳定性得以提高,输出电阻减小;深负反馈条件下,反馈系数的倒数近似等于闭环增益,从而定量地验证了负反馈放大电路中的基本结论.
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| 关 键 词： | 负反馈 方框图 仿真 |
Simulation Analysis and Theoretical Calculations in Negative Feedback Amplifier Circuit |
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| YANG Yi-jun,CHEN De-bao.Simulation Analysis and Theoretical Calculations in Negative Feedback Amplifier Circuit[J].Journal of Anhui Institute of Education,2008,26(6). |
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| Authors: | YANG Yi-jun CHEN De-bao |
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| Institution: | YANG Yi-jun,CHEN De-bao(Department of Physics,Huaibei Teachers College of Coal Industry,Huaibei 235000,China) |
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| Abstract: | The paper applies the block diagram for simulation analysis and theoretical calculations of series negative voltage feedback amplifier circuit which is designed by operational amplifier.The same results indicate: 1) closed-loop gain and open-loop gain to meet basic relationship;2) the stability of feedback is consistent with the theory and output resistance decreased;3) the feedback coefficient is approximately equal to the reciprocal of the closed-loop gain in deep negative feedback conditions,which confir... |
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| Keywords: | negative feedback block diagram simulation |
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