查询词典 current source

A small aluminium resistor is added into reference current source circuit of the original major circuit, its influence on temperature range -50℃ to 150℃ can be limited to 1％～2％.

与现有的电路相比，本电路并没有改变原来的主电路结构，而仅仅在参考电流源中增加了一个小电阻。它在零下50℃到150℃的大范围内的温度效应被限制在1％-2％。

We will use the circuit symbol for current source, which is , to model these power injections (which makes sense because, as concluded in Section 3.0, we can treat real power just as we treat currents).

我们为当前来源将使用电路符号，是，塑造(有道理的这些力量射入，因为，如结束在第3.0部分，我们可以对待真正的力量正我们对待潮流)。

This paper introduces an efficient digital controlled const current source based on the switch technology.

本文重点介绍一种高效率的基于开关技术的数控恒流源。

This means it may be accessed anywhere in the current source code file.

意思是说它可随时随地出现在在当前的源码文件中。

External reference : a reference to a global symbol that is not defined in the current source file.

外部引用：对未定义在当前源文件中的全局符号的引用。

That only functions within the current source file may call the function, whichbe more efficient.

对这个静态函数进行调用，从而使编译出来的代码执行效率更高。

ABSTRACT: A Rockwell PowerFlex7000 Variable Frequency Drive is used in JiuZHou Electric medium voltage drive test bay as the converter. Because of it belong to the current source drive, it has the function of the four quadrant, it can achieve the energy feedbackmake the motor brake,also has the advanced vector control technology, so it can achieve all kinds of load test, there are no other drives can replace it in simulate motor load. PowerFlex7000 drive has ability to achieve the full load test before the drive leave factory.

摘 要：罗克韦尔PowerFlex7000变频器在九洲中压变频实验站测试系统中作为变流逆变器使用，由于本身属于电流源型变频器，具有四象限运行功能，能够实现能量的回馈和对电机的制动，先进的矢量控制技术，可以实现各种复杂多变的负载特性，在模拟电机负载方面起到了其他变频器无可替代的作用，实现了变频器出厂之前的满负荷测试。

The design on the receiver of Strong Current Source TEM and the data collection system. In order to increasing the depth of exploration and enhancing the measure precision, it need to decrease the minimal discriminable voltage, besides increasing the current intensity. 3. the program of interpretation software and precision of interpretation.

强场源瞬变大地电磁系统的接收机及数据采集系统设计问题在加大工作电流的同时，尽量降低系统的最小可分辨信号电平，这就意味着探测深度与精度的相对增大与提高，这对数据采集系统提出了更高的要求，要求数据采集系统动态测量范围大，最小可测电压的能力与信噪比高。

Subcircuit models are designed and simulated, which includes Bias Current Source, Voltage Reference, Error Amplifier, PWM Comparator, Driver Circuit, Protection Circuits for Over-temperature, Over-current. At last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement.

并对集成电路内的各个模块包括电流偏置电路、基准电压电路、误差放大电路、三角波振荡发生电路、PWM比较电路、驱动电路、过热保护电路和过流保护等进行了具体的设计和仿真，并对整体应用电路进行了仿真，结果均达到了预先设定的指标。

Because of its fast and flexible controllability, the voltage source converter based high voltage direct current will be widely applied in power systems, so it is of practical significance to study the dynamic performance of VSC-HVDC in complicated power grids. The quasi steady state response of flexible HVDC system can be simulated in power system simulation software PSS/E.

柔性直流输电系统(voltage sourced converters high voltage direct current，VSC-HVDC)因其快速灵活的可控性在电力工业中将有越来越广泛的应用，研究其在复杂电力网络中的动态性能具有工程实际意义，应用电力系统仿真软件PSS/E可模拟柔性直流输电的准稳态响应。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。