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This approach has the advantage that only half as many switches are required, so it is more economical. The disadvantage is that the offset voltage of the single pole in the sense circuit is added to the measurement.

如图523所示。该方法的优点是仅需要一半数量的继电器，因此更加经济；缺点是测量电路中单刀的偏移电压将被叠加到测量值中。

This thesis makes harmonics analysis and simulation to the main electric devices of φ 76 Unit in order to seek solution to harmonics pollution of them. Field harmonics data of operating devices is recorded and compared to simulation results. The two are in good agreement. Then, power filter is designed and added to original circuit.

为了针对这些设备进行有目的、有根据的谐波治理方案设计，本论文对现有的Φ76机组的部分主要电气设备进行了谐波分析和仿真，并且用谐波检测仪器进行了设备处于工作状态之下的现场谐波测试，然后把仿真结果与现场谐波检测结果进行了对比，对比证明了仿真的正确性。

In order to improve the harmonic suppression performance of APFs, a novel topology of Series Hybrid Active Power Filters where a series LC resonance circuit is added, is analyzed in this thesis.

本文首先简要介绍了有源电力滤波器的发展现状，主要从应用现状、有源电力滤波器主电路拓扑、谐波检测理论和控制策略的发展现状进行介绍。

Because of Gray code is used in the coding of the conversion of low 3 bits, a Gray-to-binary circuit is added before the output of the converted data.

由于低三位A/D转换采用格雷码编码，所以在数据输出之前，增加了格雷码-二进制转换电路。

The excellent agreements between simulated and measured results prove the accuracy of the established circuit model. Moreover, the varactor was added to the resonator to adjust its resonant frequency. As expected, the reactance introduced by the varactor indeed affects the net inductance and capacitance obviously. It is noted that, not only the shift with the center frequency, the inductive or capacitive of the reactance can also provide a parameter to switch its frequency toward the two directions away from the one without varactor. As a consequence, a wideband tunable band-pass filter is achieved. Although the bad quality factor with the diode strongly increases the insertion loss, this concept was proved to be available for effectively tuning the center frequency of such a class of band-pass filter.

另外，在共振器上的varactor是用来调整共振器的共振频率，如预期的，由varactor所造成的电抗确实的影响到共振器的总电感和电容值，值得一提的是，不仅滤波器的中心频率可以被改变，这电抗是电感性或是电容性也将决定滤波器的中心频率将大於或小於未加varactor时滤波器的中心频率，利用这个结果，我们也实现了一个宽的可调频率带通滤波器，虽然不理想之二极体的Q值增加了滤波器的介入损失，但这原理是被证明可有效的用於调变带通滤波器的中心频率。

This article introduced the antijamming in the NC system design,from the shield (including electric field shield ,magnetic screen and electromagnetic field shield ) designs mentions,added the absorbing circuit to the perceptual load to suppress the transient state noise to give the specify,might avoid the NC system which disturbed creates softly breakdown.

本文介绍了抗干扰在数控系统中的设计，从屏蔽(包括电场屏蔽、磁场屏蔽和电磁场屏蔽)设计谈起，对感性负载加吸收电路来抑制瞬态噪声做了详细说明，可避免干扰造成的数控系统的"软"故障。

The keyboard is not the circuit board, there is no screws, it can be directly added to.

键盘的电路板并不大，没有螺丝固定，也可以直接拿下来。

Different noises are added to the ideal CITs which is obtained by using randle equivalent circuit ,and then, the de-noising criterion in practice for CITs using the empirical mode decomposition is obtained.

通过计算机仿真，在模拟等效电路生成的理想瞬态响应信号上加入不同形式的噪声，获得恒电量瞬态响应信号经验模式分解滤波的实际判据。

Therefore, the mobile hard disk control chip manufacturers added this feature, when in the non-working hard drive started at the standby mode, the top of the head began to deviate from the disc, read-write head closed circuit, reducing power consumption to reduce the number of read and write and temperature.

因此，移动硬盘厂商在主控芯片上增加了这项功能，在非工作状态时硬盘就开始处于待机状态，磁头开始偏离碟片上方，读写磁头开始关闭电路，降低读写次数来降低能耗和温度。

The added noise and dithering ring control circuit for the Phase Lock Loop are analyzed by simulations based on Multisim.

通过Multisim软件对加入噪声以及锁相器的抖动环控制电路进行仿真分析，仿真结果得到了改进电路后抖动电路的驱动信号。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。