查询词典 circuits

A connection is designed via the NMOS switch to combine together the two circuits all via the concept of multiple-pass such that a wider range of oscillation frequency can be obtained.

然后再利用 NMOS 作为开关电路，将加快振荡频率的多重路径振荡器电路与减慢振荡频率的多重路径振荡器电路结合在一起。

ANALOGIES are often drawn between the fields of computer science and biology. The information-processing abilities of DNA are a form of natural molecular computing, and computer viruses leap from machine to machine in ways reminiscent of their disease-causing namesakes. At the International Solid-State Circuits Conference in San Francisco this week, a trio of mighty information-technology firms—Sony, Toshiba and IBM—pushed the analogy a little further. They unveiled a much anticipated new computer chip, four years in the making, the very name of which is a biological metaphor: the Cell.

人们经常把计算机科学和生物学进行类比，DNA的信息处理能力是一种自然分子的计算形式，而计算机病毒则让人想起致病性生物病毒，从一台机子感染另一台机子，而这个星期，信息技术的三巨头——索尼、东芝和IBM在旧金山召开的国际晶体管集成电路会议上，把两者间的这种类比作了进一步的推进，他们披露了一种已经研制了四年的、非常有希望的新型计算机芯片，这种芯片的名字来自生物学：细胞。

It consists of same three sets of acquisitive circuits,which construct O-shaped structure to sample the signals without drop .And it adopts threshold judging method to determine the valid data in the process of the acquisition,abandons vast of the redundant useless data at the same time,it only sends the useful data to the host computer by the way of DMA,so it is easy to processing the data.The design is concise and reliable.

但这本身也是一对矛盾，因为随着采集速度的提高，单位时间内采集的信号数据也就越多，而一般的采集卡在采集一定数量的数据后，总的需要一定的时间向主机内存传送数据，而在这段时间内是不能采集数据的，作为随机信号，如果在此时间内到来，则会造成信号的丢失。

Abstracts: To sample high speed random signals without drop, a design of O-shaped high speed random signals acquisition card based on the CPLD and its realization are presented. It consists of same three sets of acquisitive circuits, which construct O-shaped structure to sample the signals without drop .And it adopts threshold judging method to determine the valid data in the process of the acquisition, abandons vast of the redundant useless data at the same time, it only sends the useful data to the host computer by the way of DMA, so it is easy to processing the data. The design is concise and reliable. The sketch map of the logic circuit and the explanation of the main parts are presented. This design has been applied in the engineering project of sampling α nuclide.

为了对随机到来的信号进行不丢失的高速采集，提出了一种基于CPLD的随机信号环形高速采集卡的设计与实现；通过采用三套采集电路形成一个环形结构，可以对随机到来的信号进行不遗漏的高速采集，而且在采集过程中利用阈值的方法鉴别出有用信号，并舍弃了大量的冗余无用数据，从而只将有用数据以DMA的方式传于主机，便于进行信号的处理；电路设计简洁可靠，并给出了主要的逻辑电路示意图与主要部件说明；该系统已经应用在采集α核素的工程实践中。

The voltage converted into 0～5 V using convering circuit can be used directly by microprocessor ,and con2 verted into digital signals by A/ D converting. So this simplifies the design of the circuits.

通过电压转换电路可以将- 10～+ 10 V 的输出电压转变成为0～5V 的电压，便于带有A/ D 转化电路的单片机系统直接进行A/ D 转换，简化了电路设计。

ZnO Varistors have extremely nonlinear current-voltage characteristics and therefore are widely used in electronic circuits and el...

ZnO压敏电阻具有优异的非线性特性，它在电子和电力系统中得到了广泛的应用。

ZnO Varistors have extremely nonlinear current-voltage characteristics and therefore are widely used in electronic circuits and electric power systems.

ZnO压敏电阻具有优异的非线性特性，它在电子和电力系统中得到了广泛的应用。

Secondly, the operating principle and the mathematical model and the control method about the three-level voltage source high power factor PWM converter are analysed .The generation of the PWM trigging pulse control signal are introduced emphatically. On the basis of this, the hardware experimentation circuits are built with DSP and CPLD, and the trigging pulse signal is generated exactly. The feasibility of the circuit is verified by the experiment result.

其次，分析了三相电压型变流器的原理、模型、控制方法并着重研究其PWM 触发脉冲控制信号发生技术，并以DSP、CPLD 等芯片搭接了硬件试验电路，产生了正确地触发脉冲信号，试验结果证明了设计的合理性。

Is this one of the trickiest circuits on the calendar?

这是不是赛程中最诡异的赛道之一？

Protection of Components and Circuits Sensitive to ESD Transients Occurring on Power supplies, Control and Signal Lines.

保护元件和电路，防止在电源供应、控制和信号线产生的ESD。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了