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Negative feedback circuit is the main body of SAW drive circuit which is composed by operation amplifier and feedback network, its function is to realize output impedance matching and electric circuit stable gain.

负反馈放大器是该驱动电路的主要部分，它由运算放大器加上电阻和电容构成的反馈网络组成，其功能是实现输出阻抗匹配以及保证驱动电路增益的稳定性。

The circuit includes phase electric capacity, the feedback resistance and the input impedance. This signal frequency of this model is wide.

运算放大器扩展功能，在电子电路设计中其数学模型为放大电路，含移相电容、反馈电阻及输入阻抗。

The interaction of DNA with five diverse surfactants was studied by cyclic voltammetry and electrical impedance. DNA modified gold electrodes were prepared and methylene blue and ferricyanide were used as the redox probes, respectively.

以修饰DNA的金电极为DNA传感器，亚甲蓝和铁氰化钾分别为探针，用循环伏安和电化学阻抗技术对五种不同种类的表面活性剂与DNA的相互作用进行研究。

The influence of HTABr on s-BLMs was investigated by cyclic voltammetry and electrochemical impedance spectroscopy. The experimental results show that the HTABr appeared to be an effective ion carrier to facilitate the transmembrane transportation of ferrocyanide/ferricyanide.

而且，我们发现，在一定程度内(即表面活性剂的浓度低于Csol，或反应的时间比较短)，若将电极取出放入到KC1支持液中，磷脂分子在电极表面可以重新自组装，s-BLM重新恢复到原来的状态，探针分子在电极上的响应电流也逐渐变弱，直到完全消失。

When locked in phase and frequency, the output is high impedance and the voltage at that pin is determined by the low-pass filter capacitor.

当相位和频率锁定时，输出端为高阻态、那个脚的电压取决于低通滤波电容。

A sample-and-hold device consist of a operational amplifier with very high input impedance and a capacitor can establish a floatable base,therefore...

由高输入阻抗运算放大器和电容构成的采样保持器形成浮动的基淮，于是可实现自动调零。

Based on the fluidic impedance method ,the effect of the pressure ducts on the dynamic characteristics of pressure drop measurement system was analyzed.

本文应用流体阻抗法的有关理论，分析了动态差压检测系统中引压管路的有关参数对测量动态特性的影响。

It is a usual structure of focal-plane-array readout integrated circuit which uses a capacitance trans-impedance amplifier as the input stage, a correlated double sampling circuit to get signal and reduce noises, and a source follower circuit to output the signal.

焦平面读出电路的一种常用结构是以电容跨阻抗放大器作为输入级，相关双采样方式提取信号并抑制噪声，源跟随器方式输出信号。

It pretty much has to, as the operating current for both stages is the same, the series resistance is only trivially different compared to the forward biased input impedance of a triode grid (10's of K's for the typical duotriode input), and the voltage divider ratio difference between 100/10K and 470/100K is 0.990099 versus 0.995322, an inaudible amplitude difference.

相当有作为的经营现为两个阶段是相同的，一系列的阻力，只是没有太大的不同，相对于前进偏颇输入阻抗三极管一格(10年代K的对典型duotriode投入)，该分压器比例相差100/10k和470/100k是0.9900990.995322versus，inaudible幅度差。

In this paper, a three-dimensional diagram of frequency impedance characteristic considering the variation of the conduction angle is obtained.

基于IEEE第一基准模型的数字仿真分析验证了频率阻抗计算方法和结果的正确性，深入阐明了TCSC抑制SSR的物理机理以及要实现完全抑制SSR需满足的工作条件。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。