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摘要对于信号发生器产生的高频率、低电平的信号来说，需要用分立元件将其放大，使得接收器能够接受到信号。为了搭建一个合理并且可以实际运用的放大电路，先去查阅资料和书籍，了解过往的类似解决问题的方法和思路。然后，我需要充分了解分立元件的工作原理并设计出一套可行的方案。并计算其静态工作点确保其在放大倍数稳定的范围内放大信号。然后将计算并仿真成功完成的电路按原理图搭建出来，在实验室进行观察、统计和测试并记录电路板的状况和所遇到的问题。反馈问题后分析问题的成因，然后提出解决方案，并在此实验，通过示波器显示的波形有无失真和噪声来判断实验的结果是否符合要求。最后总结整个实验过程的经验和体会，如果有需要再进行更深入的分析和思考。28670
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关键词 小信号 放大 电路 三极管 场效应管 元器件
毕业论文设计说明书外文摘要
Title The amplification of High-frequency signal Which has a Small range
Abstract
For high frequency signal generator, a low level signal, the need to enlarge discrete components, so that the receiver can receive the signal. In order to build a reasonable and practical application of the amplifier circuit can, go to the access to information and books, learn how to solve problems similar to the past and ideas. Then, I need to fully understand the working principle of discrete components and design a viable option. And calculate the quiescent operating point to ensure its zoom magnification within a stable range of the signal.Then calculate and simulate successfully completed build out circuit according to the schematic in the laboratory observation, statistics and test and document the status of the circuit board and the problems encountered. After analyzing the causes of the problem of feedback problems, and then propose a solution, and in this experiment, whether the distortion and noise waveform display via an oscilloscope to determine whether compliance with the requirements of the experimental results.Finally, lessons learned and experience throughout the experiment, and if there is need to carry out more in-depth analysis and reflection.
Keywords amplified signal electronics
Circuit sophisticated signal
目 次
1 绪论 1
1.1 小信号 1
1.2 放大电路的应用及背景 1
2 mos管放大电路的设计 1
2.1 mos管工作原理 2
2.2 mos管的组态选择 3
2.3 mos管的型号选择 6
2.4 mos管放大电路的设计 6
2.5 mos管放大电路的参数选择 10
2.6 mos管放大电路的仿真与调试 14
2.7 mos管放大电路实际搭建和测试 19
2.8 mos管放大电路的设计心得与体会 20
3 三极管放大电路的设计 21
3.1 三极管的工作原理 21
3.2 三极管的组态和型号选择 22
3.3 三极管的放大电路设计 25
3.4 三极管的放大电路参数选择 27
3.5 三极管放大电路的仿真与调试 29
3.6 三极管放大电路的实际搭建与测试 31