According to "virtual short" and "virtual-off" feature, available to the circuit passband voltage gain and pass-band cut-off frequency.

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。

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Using the concept of virtual short circuit and virtual open circuit, the voltage gain of depth negative feedback circuit can be estimated.

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。

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Research is made into the differential amplifier circuit by means of circuit theory analysis, differential amplifier theory analysis, "virtual-short" theory analysis and experiment way.

采用电路理论分析、差放理论分析、“虚短”理论分析及实验的方法对差分式放大电路进行了研究。

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Research is made into the differential amplifier circuit by means of circuit theory analysis, differential amplifier theory analysis, "virtual-short" theory analysis and experiment way.

采用电路理论分析、差放理论分析、“虚短”理论分析及实验的方法对差分式放大电路进行了研究。

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