查询词典 current source

The article introduces a design method of numerical precision constant current source based on high-power operational amplifier .

介绍了一种在大功率运放 OPA549基础上的数控精密恒流源设计方法。

The ohmmeter uses an internal current source and electrometer voltmeter to make the measurement.

欧姆计使用内部的电流源和静电计电压表来进行测量。

This pentode functions as a constant - current source for the input differential pair and is connected to a regulated -125-volt supply.

这pentode职能不断-电流源的输入和差分对连接到调节， 125伏的电源。

An optimal nonlinear compensation transmiting circuit of temperature measure was designed,which measuring using platina resistor stimulated by constant current source.

设计铂热电阻恒流激励测温的最佳非线性补偿变送电路，同时利用半导体致冷器件即可加热又可致冷的双向特性，制成以半导体致冷器为冷/热源的高精度控温系统，在20~40℃，控温精度高达±0。

This paper studies on the convolution integral which is often used in time domain analysis through equivalent transforming proportional counter tube to current source,and analyzes output voltage of network containing proportional counter tube.

摘 要：研究了将正比计数管等效为电流源后，应用时域分析中常用的卷积积分的方法，分析含正比计数管的网络的输出电压。

For these reasons, research work on Current Source Rectifier can make sense.

因此，开展对电流型整流器的研究工作具有重要的学术意义和广泛的商业应用前景。

MSP430F169 microcontroller was the core components of control and measurement function of an electromagnetic relay characteristic parameter tester. The tester also included DC power module, power amplifier module, constant current source module, keys, and digital tube display module. The tester could test the data of 943-1C-12DS electromagnetic relays including the minimum pull-in voltage, maximum release voltage, relay coil voltage rating when the pull-contact time, release time as well as the contact value of the contact resistance. The system could complete automatic measurement parameters to achieve all the basic requirements of design. And all of the test data was displayed through the 74HC573 digital tube.

摘 要：以MSP430F169单片机作为控制和测量的核心部件，辅以直流稳压电源模块、功率放大电路模块、恒流源模块、按键和数码管显示模块等组成一个电磁式继电器特性参数测试仪，完成对943-1C-12DS电磁式继电器最小吸合电压、最大释放电压、继电器线圈电压为额定值时的触点吸合时间、释放时间以及触点接触电阻值的测试，该系统能够实现成套参数自动测量，所有测试数据通过74HC573数码管进行显示。

The three valued logic modulation technique is usually used in the conventional current source PWM rectifier, and the SPWM control waveform can be obtained by the interphase decoupling.

传统的电流型PWM整流器一般采用三值逻辑SPWM调制技术，通过相间解耦预处理的方法获得实际PWM控制波形，过程复杂且直流电流利用率较低。

If you need a programmable dynamic current source, find out about operational transconductance amps.

如果需要一个可编程的动态电流源，找出运算跨导的放大器，大部分的问题就明白了。

An effective method for improvement transient response in pulse-width modulation current source converter is studied.

给出了单相和三相变频器的实验结果，与采用其他方法的变频器相比，该方法的变频器电源电流的暂态响应得到了有效改善。

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。