| 反馈电路教学的几点新思路 |
| |
| 引用本文： | 杨飒. 反馈电路教学的几点新思路[J]. 高师理科学刊, 2005, 25(4): 90-92 |
| |
| 作者姓名： | 杨飒 |
| |
| 作者单位： | 广东教育学院,物理系,广东,广州,510310 |
| |
| 摘 要： | 利用反馈元件与电路输入、输出端的连接方式,来简化反馈类型的判别过程,并根据电压和电流的相互转换关系,采用“瞬时电流法”判别反馈电路的性质;利用“虚短”和“虚断”的概念来估算深度负反馈电路的电压增益.通过对所举反馈电路的分析,来证明该方法的可行性和优越性.
|
| 关 键 词： | 反馈类型 反馈元件 反馈性质 瞬时电流 虚断 虚短 |
| 文章编号： | 1007-9831(2005)04-0090-03 |
| 修稿时间： | 2005-03-24 |
Some new train of thoughts about teaching of feedback circuit |
| |
| YANG Sa. Some new train of thoughts about teaching of feedback circuit[J]. Journal of Science of Teachers＇College and University, 2005, 25(4): 90-92 |
| |
| Authors: | YANG Sa |
| |
| Abstract: | Using the connecting fashions between the feedback component,the input and output spot of circuit,the process of distinguishing the type of feedback circuit can be simplified.According to the mutual relationship between voltage and electric current,a new method named instantaneous electric current will be put forward to distinguish the quality of feedback circuit. Using the concept of virtual short circuit and virtual open circuit,the voltage gain of depth negative feedback circuit can be estimated.To demonstrate the feasibility and superiority of this method,a feedback circuit will be analyzed. |
| |
| Keywords: | the type of feedback circuit feedback component the quality of feedback circuit instantaneous electric current virtual open circuit virtual short circuit |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
