| 含运算放大器的一阶电路时间常数的计算 |
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| 引用本文： | 赵艾萍,张峰.含运算放大器的一阶电路时间常数的计算[J].电气电子教学学报,2014(2):27-29. |
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| 作者姓名： | 赵艾萍 张峰 |
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| 作者单位： | 上海交通大学电子信息与电气工程学院,上海200240 |
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| 摘 要： | 时间常数是一阶动态电路分析中的一个重要参数。而含运算放大器的一阶电路时间常数的计算又是学习中的难点。本文采用了经典法、外加电源计算和电路等效三种求解手段讨论含运算放大器的一阶电路时间常数的计算。并针对含运算放大器的一阶电路的三种基本情况,详细介绍了零电流支路开路和等电位点之间短路这两种电路等效手段的应用,展示了电路等效变换在求解此类问题时的便捷之处。
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| 关 键 词： | 运算放大器 一阶电路 时间常数 |
Calculation of Time Constant in First Order Circuit Containing Operational Amplifiers |
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| ZHAO Ai-ping,ZHANG Feng.Calculation of Time Constant in First Order Circuit Containing Operational Amplifiers[J].Journal of Electrical & Electronic Engineering Education,2014(2):27-29. |
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| Authors: | ZHAO Ai-ping ZHANG Feng |
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| Affiliation: | (Shanghai Jiao Tong Univ , Shanghai 200240,China) |
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| Abstract: | Time constant is an important parameter in analysis of first order circuit. To calculate the time constant of the circuit containing operational amplifiers is the difficulty in learning. In this paper, using the classical meth- od, external power supply method and equivalent circuit method to discuss the calculation of time constant contai- ning operational amplifiers. According to the three basic conditions of first order circuit containing operational amplifiers, the application of equivalent circuit method is introduced in detail, showing its convenience in solving such problems. |
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| Keywords: | operational amplifier first order circuit time constant |
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