“虚短”是指在理想情况下，两个输入端的电位相等，就好像两个输入端短接在一起，但事实上并没有短接，称为“虚短”。虚短的必要条件是运放引入深度负反馈,同时放大器开环增益A足够大。
...放大器;虚短;虚断;“倒推法” [gap=925]Keywords：theorem of homogeneity;ideal arithmetical amplifier;virtual short circuit;virtual opening;inverse method ...
基于24个网页-相关网页
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。
Using the concept of virtual short circuit and virtual open circuit, the voltage gain of depth negative feedback circuit can be estimated.
根据“虚短”和“虚断”的特点，可得到电路的通带电压放大倍数和通带截止频率。
According to "virtual short" and "virtual-off" feature, available to the circuit passband voltage gain and pass-band cut-off frequency.
对工作在深度负反馈状态的运算放大器电路，常采用虚短虚断技术得出的理想参数代替实际参数。
To the operational amplifiers circuits which works at deep negative feedback mode, we adopt ideal parameter deduced form ideal model instead of actual parameter usually.
应用推荐