查询词典 converters

Keyboard function set through waveform type,frequency,amplitude,duty cycle,and other parameters of a signal to the microprocessor 89C51 control,MAX038 generated by the various signals,In this process,four-channel signal through D/A converters have simulated voltage and current,It transported up through the analog signal amplification,it enters the frequency MAX038 coarse-IIN,fine-tuning FADJ end,the duty cycle control-DADJ. In its COSC port received a three relays and oscillation frequency capacitance as a choice.

通过键盘设定函数波形种类、频率、幅度、占空比等参数的一个信号进入单片机89C51控制，由MAX038产生各种波形信号，在此过程中信号通过四通道D/A转换器产生模拟电压和电流，它再通过运放将模拟的信号放大，它进入MAX038的频率粗调端IIN、微调端FADJ、占空比控制端DADJ、在它的COSC端口接一个继电器和三个振荡电容作为频率选择。

Use of static frequency converters for reversible diesel generator start is away to substantially increase efficiency and enhance applicability range of electric engine starting, because the technology in question eliminates a need for electric starter, and is less demanding to characteristics of autonomous power supply.

使用静止式变频器起动可逆式柴油发电机组是一种可大大提高发电机起动效率并扩大其应用范围的方法，因为这种技术消除了对起动电动机的需求，而且对自行供电特性的要求也较低。

The prime parameters characterising theperformance of data converters are resolution,accuracy, and dynamic response.

表明数据转换器性能特征的主要参数有分辨率、准确性和动态响应

The comparative analysis of different converters which could be used in the wind power conversion syst...

文中还对比分析了可能采用的各种变流器线路的优缺点。

Dynamic large-signal, DC, and small-signal circuit models including parasitic resistances and current ripples of nonideal synchronous rectifier buck converter operating in CCM are established. Closed-loop modeling of nonideal synchronous rectifier buck converter for voltage-mode control is studied. Transfer functions are obtained. Effects of parasitic components on control loop design of the converter are explored. Systematic simulation analysis is performed. All the results show that it is necessary to include parasitic components of converters into equivalent models.

首次建立了考虑寄生电阻和电流纹波的同步整流 Buck 变换器在连续工作模式下的大信号平均模型、DC 和小信号电路模型，研究了电压控制的闭环建模，导出了传递函数，剖析了变换器的寄生参数对其控制电路设计的影响，进行了小信号特性的仿真研究，进一步阐明了考虑变换器的寄生参数建模的必要性。

The papers will expatiate on vessel electric propulsion motor drives technology, and analyze varieties of converters, how to be used to the vessel electric propulsion system.

驱动系统是电力推进系统的关键技术之一，它伴随着电机控制理论和电力电子器件的发展而不断得到发展。可调速驱动系统在工业上已应用很长时间了，但第一次通过使用电力电子器件实现可调速驱动是在20世纪60年代末。

Among the wide variety of analog to digital converter architectures, pipelined and oversampled ∑-Δ converters are the most suitable candidates to meet the needs of current.

在各式各样的模数转换器构架中，流水线ADC与过采样∑-Δ ADC应用最为广泛。

ABSTRACT Oversampling sigma-delta analog-to-digital converters are widely used in real life because of the high resolution with compa...

过采样sigma-delta A/D转换器能以相对较简单电路获得较高的转换精度，因此在实际中得到广泛的应用。

ABSTRACT Oversampling sigma-delta analog-to-digital converters are widely used in real life because of the high resolution with comparatively simply circuits.

过采样sigma-delta A/D转换器能以相对较简单电路获得较高的转换精度，因此在实际中得到广泛的应用。

Once we have an HTML previewer, there are plenty of PDF converters out there, that may carry on to provide us the final professional touch.

一旦我们有了一个HTML预览器，的确有大量的PDF转换器，有可能进行向我们提供最后的专业联系。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐