和电路

It can complete the measurement of AC/DC voltage.The running process: it enlarges the digital to tallies chip through Amplifier. It holds the sampling digitalpass to convenience transforming for the chip through sample and hold Circuit.

运行过程是：将采样的模拟量通过放大电路放大到和模数转换芯片相适应的量，通过采样保持电路将芯片采样的量保持住后送入模数转换器转换成数字量，再由单片机进行控制计算。

It can complete the measurement of AC/DC voltage. The running process: it enlarges the digital to tallies chip through Amplifier. It holds the sampling digital pass to convenience transforming for the chip through sample and hold Circuit.

运行过程是：将采样的模拟量通过放大电路放大到和模数转换芯片相适应的量，通过采样保持电路将芯片采样的量保持住后送入模数转换器转换成数字量，再由单片机进行控制计算。

Considering the speed , power dissipation and specifications, A flip-around sample and hold circuit was designed to reduce the power consumption; S/H circuit is followed by eight 1.5-bit stages and a final 2-bit flash sub-ADC.

该流水线式ADC的采样保持电路采用Flip-around结构以减少功耗；前8级每级1.5位，最后一级为2位的并行flash ADC，并采用数字校正技术对级电路的误差进行校正，最终以达到10位的精度；为了达到系统低功耗的要求，该流水线ADC采用了运放共享技术和逐级缩小技术。

The experiment results indicate that the proposed method can effectivelly reduce leakage current of combinational and sequential circuits during test while maintaining high fault coverage.

实验结果表明该方法能够有效减小组合电路和时序电路测试时的漏电流，同时保持较高的测试故障覆盖率。

During the hardware circuit design, the signal conditioning circuit and the DAQ card is important to whole system's accuracy.

在硬件电路设计中，信号调理电路和数据采集卡是整个系统测量精度的关键环节。

During the hardware circuit design, the signal conditioning circuit and the DAQ card isimportant to whole system's accuracy.

在硬件电路设计中，信号调理电路和数据采集卡是整个系统测量精度的关键环节。

The signal conditioning circuit and digital circuit are illustrated.

文中介绍了信号调理电路和数字化电路的组成。

In order to avoid the analysis difficulties of DBD circuit in time domain method, a new fundamental wave analysis method of DBD circuit is presented since the current of inverter is closed to sinusoidal wave.

3为降低时域分析方法的复杂和烦琐，本文利用串联谐振电路工作时电流接近正弦波这一特性，提出了串联负载谐振式DBD电路的基波分析方法，推导了DBD电源中主要电气量的表达式。

Based on the analysis of some configurations of the lossless snubber circuit, a lossless snubber circuit topology is proposed, corresponding theoretical analysis, simulation and experiment on IGBT is carried out.

在对已有的无损耗缓冲电路分析基础上提出了一种适用于IGBT的谐振无损耗缓冲电路的拓扑结构，并进行了理论分析和实验研究。

With the technical development of active power factor correction, some circuits in the ballast s and its operation are introduced, which have been used in high pressure sodium lamp.

针对荧光灯电子镇流器和高压钠灯电子镇流器中功率因数校正技术的发展，总结了典型的有源功率因数校正应用电路，分析了电路的基本工作原理，并在高压钠灯镇流器中得到了应用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。