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By analyzing operational amplifier and its external circuit, it is theoretically proved that simulator inductance can be implemented with passive rc circuits composed of operational amplifiers.
通过对运算放大器的分折，结合运算放大器的外围电路，从理论上证明了用运算放大器组成的有源rc电路可以实现模拟电感。
The article analyzes the frequency characteristics of RC series parallel circuits and the symmetrical circuits, through studying the effectiveness of the positive-negative feedback to the amplifier.
从正、负反馈对放大器性能影响出发，分析RC串、并联电路及其对偶电路的频率特性。
Combining these networks with these topologies, 62 types of rc active second-order filter can be composited, 54 types of these circuits have not yet been published.
将这些网络和拓扑相结合，能产生62个二阶滤波电路，其中的54个未见报导。
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