| 等效变换法分析单端输入差动放大电路的几个误区 |
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| 引用本文： | 王爱国,杜文学,辛华.等效变换法分析单端输入差动放大电路的几个误区[J].长江工程职业技术学院学报,2006,23(3):35-37. |
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| 作者姓名： | 王爱国 杜文学 辛华 |
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| 作者单位： | 西安电力高等专科学校,西安,710032 |
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| 摘 要： | 在单端输入的差动放大电路工作原理教学中,对共模反馈电阻Re的作用,往往采用等效变换法进行分析,如果不注意正确使用分析条件会得出错误的结论,本文从理论和实践上指出了利用这种分析方法分析单端输入差动放大电路的局限性,最后给出了正确的分析方法及结论.
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| 关 键 词： | 等效变换法 单端输入 差动放大电路 共模反馈电阻 |
| 文章编号： | 1673-0496（2006）03-0035-03 |
| 收稿时间： | 2005-12-29 |
| 修稿时间： | 2005年12月29 |
Several Mistakes in Using Equivalent Transformation to Analyze Differential Amplifier Circuit with Single Input |
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| WANG Ai-guo,DU Wen-xue,XIN Hua.Several Mistakes in Using Equivalent Transformation to Analyze Differential Amplifier Circuit with Single Input[J].Journal of Changjiang Engineering Vocational College,2006,23(3):35-37. |
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| Authors: | WANG Ai-guo DU Wen-xue XIN Hua |
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| Abstract: | Concerning the teaching of the principle of differential amplifier with single input, equivalent transformation method is always utilized to analyze the function of the common-mode feedback resistor Re. If regardless of proper analysis condition some mistakes might be led to. The restriction of equivalent transformation analysis method is discussed and finally a proper method and the result of the analysis are offered. |
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| Keywords: | equivalent transformation single input circuit of differential amplifier common-mode feedback resistor |
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