查询词典 output current

The technique problems such as quick charging of high voltage capacitor, uniform discharge in high pressure large aperture zone, uniform flow of high pressure gas, and laser resonator, high energy pulse output and high repetition pulse output, were solved by applications of ultraviolet preionization, two-circuit series and parallel discharge structure of graphite Ernst electrode, folded resonator that embodies super-thin water-cooled non-deforming mirror, closed circle direct cooling system of double loop and high-voltage high-current switch power supply.

采用紫外预电离双路Ernst石墨电极串并联放电结构、超薄水冷不变形镜折叠腔、双回路直冷式封闭循环流动系统和高压大电流快脉冲开关电源等技术，解决了高功率高压电容充电、高气压大体积均匀辉光放电、高气压高速均匀流场、激光谐振腔和高脉冲能量、高重复频率脉冲激光输出等技术难题。

This paper, aiming at the topology structure of voltage-source shunt APF with filter-injecting circuit, advances a rigid output inductance calculation method based on harmonic current analysis which can work out the optimum output inductance values according to different compensation objectives.

本文尚有如下值得磋商之处：1、在许多APF应用场合，谐波负荷并不是稳定的三相全桥整流感性负载，各次谐波的幅值和相位都是变化的，其最大电流变化率难以确定，此时如何设计其输出电抗器？

The utility model relates to a double-purpose driving apparatus of medical X-ray machine with remote-control and direct-control, which belongs to medical equipment.The driving apparatus comprises a direct-current speed reducing motor whose output terminal is fixed with a ring electromagnet; an armature iron is arranged on the motor output shaft whose end is provided with a driven wheel meshes with the armature iron and rotates around the motor shaft.As the electromagnet is electrified, the armature iron is attracted and disengages from the driven wheel.With the driving apparatus, the remote control and the direct control of a non-remote controlled X-ray machine can achieve, increasing the working efficiency by 3 to 4 times and the economical benefits.

该实用新型涉及双重用途的驾驶仪器的医用X光机的远程控制程序，并进行直接控制，属于医疗equipment.the驾驶仪组成，直接电流减速电机，其输出端是固定的一个环电磁铁；电枢铁是安排在电动机输出轴，其终点就是提供一台四轮驱动的网格与电枢铁和周围旋转电机shaft.as电磁铁通电，电枢铁是吸引和脱离接触，从驱动轮随着驾驶仪器，远程控制，并直接控制的一个非遥控X光机，能做到的事，提高工作效率3至4倍和经济效益。

A low minimum operating supply voltage of 2.9V, and a low shutdown quiescent current of less than 1μA, make the LT3757 ideally suited for battery-operated systems.The LT3757 features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit.The device is available in a small 10-lead DFN (3mmx 3mm) or MSOP package.

本文介绍了LT3757主要特性，方框图以及典型应用电路，包括高效升压转换器， 3.3V输入，5V/10A输出升压转换器， 8-16V输入24V/2A输出升压转换器，高压反激电源电路，以及5.5V-36V输入，12V/2A输出SEPIC转换器和非绝缘的反相SLIC电源。

a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.

摘 要：提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案，采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元，阐述利用vc编程实现的电力系统多样信号的产生流程，分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级，由于其准确性和多功能性将加快电能质量标定的步伐。

The instruments used ATmega16L onboard A / D converter channels to achieve the cold wind pressure, the hot blast pressure, the furnace top pressure and cold wind current capacity four way analog acquisition;used PWM waveform produced by ATmega16L internal timing / Counter to achieve the entire differential pressure ,the cold wind flow and the permeability index three-way analog output for recording instruments; realized the cold wind pressure, the hot blast pressure, the furnace top pressure, the cold wind current capacity and the entire differential pressure five group parameter tour demonstration and the fixed-point demonstration by key-elect key's coordination during demonstration blast furnace permeable index; produced acousto-optics alarm when the permeable index across the upper and lower limits;used RS-485 realizing the communication with the superior computer.

仪表利用ATmega16L自带的A/D转换通道实现对冷风压力、热风压力、炉顶压力及冷风流量四路模拟信号的采集；通过ATmega16L内部的定时/计数器产生的PWM波形来实现对全压差、冷风流量及透气性指数三路模拟量输出供记录仪表使用；通过键选键的配合在显示高炉透气性指数的同时实现冷风压力、热风压力、炉顶压力、冷风流量及全压差五路参数的巡回显示与定点显示；当高炉透气性指数越上、下限时，仪表产生声光报警信号；仪表采用RS-485与上位机实现通信。

The bridge loses balance and sensitive parts have a output signal,which will transform to related current signal after differential magnifying and conversion between current and voltage. Linear 4~20mADC standard signal is formed by compensation of magnifying and non-linear rectified ring circuit ,and second temperature compensation.

输出的电信号，经过差分放大，电压电流转换，变换成相应的电流信号，通过放大和非线性矫正环路的补偿，以及精密的二次温度补偿，产生与输入压力输成线性关系的4~20mADC 二次制标准信号。

The integrated circuit also has at least a second current feeding circuit having an output connected to the feeding point for the first current feeding circuit, a feeding point connectable to a feeding voltage, and a control input for controlling the programming of the NPN-transistor.

所述集成电路还包括至少一第二电流馈电电路，所述第二电流馈电电路具有一连接至所述第一电流馈电电路的所述馈电点的输出端、一可连接至一馈电电压的馈电点及一用于控制对所述NPN晶体管进行所述编程的控制输入端。

The apparatus use Lm336 as constant voltage source, and it been converted to constant - current source by amplification, which provide current for the Hall probe. The non-idiostatic offset circuit use the bridge method to offset the circuit. So while the magnetic density is null, the output voltage of Hall probe is null too.

仪器采用恒压源经过放大器转换为恒流源，为霍尔探头提供工作电流；不等位电势补偿电路采用桥式补偿网络，补偿电压通过调节可变电阻获得，实现霍尔电势的幅值补偿，使外磁场为零时，霍尔探头输出电势为零；磁通电路主要提供对样品的磁特性测量，它由测量线圈和积分器组成。

It is possible to use a Darlington connection in place of the FET-bipolar combination in cases where the output current is high and the base current of the Darlington input would not cause a significant error.

本电路使用的 OP 必须对单位增益进行补偿。并且根据负载特性和输出级电路的特性可能需要额外的补偿。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。