朱国平-差分论文正版.doc

淮北师范大学信息学院 2015届学士学位论文 差分共基电压串联负反馈研究 学院、专业 信息学院 电子信息科学与技术 研 究 方 向 差分-共基电压串联负反馈研究 学 生 姓 名 朱国平 学 号 201118052035 指导教师姓名 杨一军 指导教师职称 教授 2015年 5月 18 日 差分—共基电压串联负反馈研究 朱国平 淮北师范大学信息学院 淮北235000 摘要 在现代通信系统的基本组成电路中，差分-共基电压串联负反馈电路占有着重要的部分，在电器产品中有着不一般的地位。本论文利用稳压三极管的工作特性，解决直流电平配置和信号有效输入，从而设计了差分-共基电压串联负反馈电路。采用通用的方框图分析法对静态电流进行计算，进而得到相关的计算数据，及微变等效电路，从而方便了人工计算与仿真后数据的对比，使结论更具科学性。如果微变等效电路计算得到开环和闭环两种情况下与等效电路开环和闭环下的仿真结果计算一致，在允许基本电路仿真与理论计算有一定的相对误差的前提下，则说明分析正确。 关键字 三极管；负反馈；差分共基电压串联电路；微变等效电路；EWB Difference - base voltage series negative feedback research Zhu Guopping School of Information, Huaibei Normal University, Huaibei City, 235000 Summary In the modern basic circuit of communication system, the difference - a total base occupies an important part of the series voltage negative feedback circuit, an unusual role in electricproducts. This paper use voltage regulator triode operating characteristics, to solve the dc level configuration and effective input signal, so as to design the difference - base voltage series negative feedback circuit. Adopt the general block diagram analysis method for calculation, the static current and relevant calculation data, and micro equivalent circuit, which is convenient for manual calculation and simulation data after contrast, makes the conclusion more scientific. If micro equivalent circuit open loop and closed loop is calculated in both cases with equivalent circuit under the open loop and closed loop simulation results of the calculation are consistent, in allowing the basic circuit simulation and theoretical calculation under the premise of relative error to a certain extent, then analysis is correct. Keywords Triode; Negative feedback; Difference in base voltage series circuit; Micro equivalent circuit；EW