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负反馈放大电路稳定性的仿真分析与研究
资料介绍
对两级电压串联负反馈放大电路的相对稳定性，分别采用了微分形式、差分形式，以及所推导的适用于反馈系数变化条件下的普遍公式进行了分析。结果表明：基本放大器增益变化△A不大时，微分形式与差分形式计算结果基本一致；反馈系数改变时，仅有所推公式成立；若△A也较大，三种计算结果可以相差很大。另外即使△A=0，由反馈系数的变化也能形成较大反馈放大器增益的相对变化。
The relative stability of negative feedback circuit with two-staged voltage series is analyzed with differential, deviation and general formulation under the condition that the feedback coefficient is chan- ging. The results indicated that solutions for types of differential and deviation are almost identical with little change of A gain, only the deduced formulation is confirmed when the feedback coefficient is changed and the three formulations are in large difference when A gain is large simultaneously. In addition, the change of feedback coefficient can form the relative change of feedback amplifier with large gain.
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| 文件名 | 大小 |
| 负反馈放大电路稳定性的仿真分析与研究.pdf | 166K |
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