| 负反馈放大器的噪声分析 |
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| 引用本文： | 周通海.负反馈放大器的噪声分析[J].四川大学学报(自然科学版),1993,30(3):353-357. |
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| 作者姓名： | 周通海 |
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| 作者单位： | 四川大学无线电电子学系 |
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| 摘 要： | 提出了采用方框图法分析负反馈放大电路的噪声,得出了负反馈不影响基本放大电路噪声性能的结论,简化了分析的步骤和复杂的计算。举例给出了方框图法分析的具体步骤。讨论了负载电阻噪声对负反馈放大电路噪声性能的影响。
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| 关 键 词： | 噪声分析 负反馈放大器 方框图 |
NOISE ANALYSIS OF NEGATIVE FEEDBACK AMPLIFIER |
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| Zhou Tonghai.NOISE ANALYSIS OF NEGATIVE FEEDBACK AMPLIFIER[J].Journal of Sichuan University (Natural Science Edition),1993,30(3):353-357. |
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| Authors: | Zhou Tonghai |
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| Institution: | Dept. of Radio Elcetronics |
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| Abstract: | A block-diagram based method for analysing the noise in a negative feedback amplifier is presented. It is shown that negative feedback has no effect on the noise property of a basic amplifier. As a result,the method simplifies the calculation and analysis for an amplifier. The analysis steps of using the method are given through an example. The effect of a load resistor noise on the noise property of a negative feedback amplifier is also discussed. |
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| Keywords: | noise analysis negative feedback amplifier block diagram |
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