查询词典 voltage changer

For improve altogether mould inhibit than,in before the high altogether mould inhibit output altogether mould voltage feedback to shouldering by ends public of power also among the amplifiers than instrument in grade, make it put power voltage until mould input voltage float , setover voltage follow mould inputs the voltage into together very much each altogether not to transport, thus improved together mould inhibit to.

为提高共模抑制比，在前级高共模抑制比仪器放大器中还将输出共模电压反馈到正负电源的公共端，使运放电源电压随共模输入电压浮动，各极偏置电压都跟踪共模输入电压，从而提高了共模抑制比。

The variables in controlling the flow of microfluids are voltage and time. This study adopted the method of fast measurements、so time taken for applying voltage did not exceed ten minutes. If voltage is not carefully controlled、the microchannel may be damaged at the particle flow. During measurement、a buffer fluid with a concentration of 0.1 M was used、the current was sufficient to propel the magnetic particles through the microchannel without damage from excessive voltage. The maximal amount of microfluid particles at the junction of the separation and injection channels was obtained with a time of 5 mintures and voltage of 200V.

藉由改变不同的电压和时间来观察颗粒在微流体中的移动情形，由於这个研究是以快速检测为原则，所以将时间控制在10分钟之内；在电压的控制上面如果电压太大的话将会对微流体的管道造成损伤，降低微流体装置的寿命，并且也有可能会对里面的颗粒造成影响，所以缓冲液的浓度使用比较大的0.1 M，这样所产生的电流将足以推动磁性颗粒并且电压不会太大也不会造成管壁的伤害。

Through the analysis of the work principle of three phases voltage resource PWM converter, set up the low and high mathematic models, deduce the restriction equations about grid voltage, grid current, modulation voltage and the DC output voltage and the calculation equations of the AC-side inductance and the DC-side capacitance. There are two control strategies are adopted: Predicted current control strategy and voltage-current two closed-loop control strategy, and give a comparison by theory and practice.

通过分析三相电压源型PWM变换器的工作原理，分别分析了低频和高频数学模型，并推导出了交流侧电压电流、调制电压、直流侧电压之间的数学约束关系以及交流侧电感和直流支撑电容参数的选取依据公式；分析对比了两种控制策略：预测电流控制和电压电流双闭环控制并加以实验验证；同时采用了负载电流前馈补偿和本文提出的一种基于专家系统的神经元新型智能PI控制器两种方法大大提高了整个系统的动态响应性能，并在仿真和实验中加以验证，这也是本文研究的重点内容之一。

Impact of an operating voltage on impulse over-voltage strength in the transformer is analyzed. Necessity of the operating voltage defined by the test voltage of the lightning impulse for UHV power transformers is pointed out. Through researches the maximum permissible operating voltage for the main isolation of UHV transformers is obtained.

分析了变压器的工作电压对冲击电压强度的影响；指出了雷电冲击试验电压定义下的工作电压对于特高压变压器的必要性；通过研究得出了特高压变压器的主绝缘的最大许用工作电压。

The boost converter is a voltage step-up and current step-down converter .the current source is synthesized from a DC voltage source by adding a large value inductor in series .in DC regulated power supply applications ,the voltage sink represents a large value capacitor in parallel with the load resistance .in the application of the DC motor control ,the voltage sink represents the back emf of the DC motor .the switching action produces a pulsating current .the capacitive filter smoothens the pulsating current and provides a DC voltage to the load

升压转换器是一个升压和降流的转换器。电流源是一个直流电压源添加一个大值电感串联合成的。在直流稳压电源的应用，电压降代表一个大值电容并联一个负载电阻。在直流电机的控制应用中，电压降代表反电动势的直流电机。转换行为产生一个脉动电流。一个滤波电容是这个脉动电流平和并且提供直流的电压负荷。

Voltage Regulator how to debug In the right tractor generator regulator adjustment, using the battery and battery in series to adjust the voltage and the voltage regulator close values, adjusted voltage and voltage error of closure are in 0.5-1 volts.

在对拖拉机发电机调节器的调整中，采用于电池与蓄电池串联来调整调节器闭合电压与调压值，调整后的闭合电压和调压值误差都在0.5－1伏特。

Using changer-time way, it was obtained that the changer of the temperature and the velocity of sublimation .

采用变时间步长法对所建立的模型进行求解，获得了物料内部的温度分布及水分升华速率。

Air operated oil pump, oil pump kit, oil drainer, oul changer, 2-in-1 oil drainer and changer, pneumatic oil dispenser, pressure sprayer, oil accessories, grease pump, grease pump kit, drum cover, follower plate, grease accessories.

8C08 黄油机，黄油加注机，黄油泵，电动黄油泵，定量黄油加注机，定量油脂加注系统，12-24V电动加油泵，电子数显加油枪，预设定加油枪，卷盘器，定量油脂油料控制系统。

Auto Frame Changer - for embroidering on wide roll fabric was developed, Embroidery machine use the Auto Frame Changer to embroider products like quilting machine.

由于在很宽的卷形织物上进行刺绣技术的发展，绣花机使"用自动框架变更"来绣出产品，就象是绗缝机一样

The paper presents an account of selection of frequency changer used for feeding pump of dense medium cyclone , effect of function of the frequency changer and the problems identified in its application.

介绍了重介质旋流器给料泵变频器的选择、控制功能的实现以及应用中的几个问题，说明了变频调速技术的优势和应用潜

Integrated dispatches from foreign news agency will report on November 6, office of American energy information (EnergyInformationAdministration, abbreviation EIA)6 day says, predict the end of the year, the commercial stone oil depot of each main industr......

综合外电11月6日报道，美国能源信息署(EnergyInformationAdministration，简称EIA)6日称，预计到2年年底，全。。。。。。

In his weekly radio address, the president sought to link that threat with insurgencies in Afghanistan and Iraq and Hezbollah in southern Lebanon.

在每周的电台讲话中，总统试图指出这次威胁跟阿富汗，伊拉克以及驻扎在黎巴嫩南部的真主党的叛乱有联系。