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电源电压

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For example: a 12V AC power supply has an alternating voltage (which will make an alternating current flow).

AV 的电源提供一个交流电压(将产生一个交流电流流动)。

First, this paper briefly presented the construction of the software and hardware system of the ATE8000- 1 integrated test stand, and the monitoring circuit designs of alternating current power supply used voltage for this test stand.

文中首先简要介绍了ATE8000-1综合测试台系统的软硬件结构和总体方案,设计出了该测试台交流电源输出电压的监控电路。

The fault phase and the ground fault generator with the current difference larger than its threshold are thus detected,and the selectivity protection scheme is also presented.

目前国内外已开发的发电机定子接地保护有零序基波电压和三次谐波电压构成的100%定子接地保护、外加电源式定子接地保护等[3~6]。

Then a lot of simulation and comparision reaserch validate the excellent performances of the interver in dynamic, steady-state and minishing harmonious component of the output voltage.

文章从分析电压微分多闭环控制策略的理论基础入手,通过大量的仿真比较验证了该控制策略在改善逆变电源动态和稳态性能以及抑制输出电压谐波方面良好的性能。

WS336-5.0 are useful as a precision 5.0V low voltage reference for digital voltmeters, power supplies or op amp circuitry.

WS336 - 5.0是有用的作为精确5.0V数字电压表,电源供应器或运算放大器电路的低电压基准。

Based on these, the single phase converter system is studied in detail, including the selection of the main circuit scheme, the formation of Sine-wave Pulse- width Modulation signal, the design of the drive and protection circuit of IGBT, and the design of high frequency transformer. Finally, the simulation software is employed to test the effect. And the result is satisfactory.

在此基础上,本文主要对电能质量控制稳定器所需的DC/AC控制电源进行了详细研究,包括主电路方案的选择、SPWM波的生成、IGBT的驱动和保护电路、高频变压器的设计以及闭环电压控制原理,最后进行了输出电压的计算机仿真分析,结果是令人满意的。

An analysis is made on cause of the damage incident of quick fuses, controlled silicon and power control panels of the DC driving devices of Chuanwei High Speed Wire Plant due to overvoltage.

分析了因过电压造成川威高线直流传动装置快速熔断器、晶闸管及电源控制板损坏事故的原因,认为直流传动装置过电压保护措施必须完善,不能随意拆除。

Of electric current, voltage and resistor what can make up programmed control to make electric current, voltage and power is accurate read time use within transient state simulative generator of buy pulse form is successive as laden as pulse job has the synchronism outside complete protective function to spark input higher power can shunt-wound job can make, electronic load is all Agilent Dc that the solution of stand-alone of ideal equipment Agilent of power cell and batteries capacity test offers your place to need all sorts of dynamic and laden application undertook optimizing.

电流、电压及电阻的可编程节制电流、电压及功率的切确读回用于瞬态模拟的内置脉冲形发生器陆续与脉冲负载工作存在完整的保护性能外同步触发输入较高功率可并联工作可使到高达240V的负载可利用单输入或多输入主机箱 3年保修期 Agilent直流电子负载是测试与评估直流电源,功率元件和电池容量测试的理想行动措施 Agilent单机解决方案供给您所需的一切 Agilent dc电子负载为各类动静负载应用进行了优化。

But the accurate calculation of AC line voltage distortion and DC voltage ripple is rather difficult.

为了提供高品质的电力,电源的交流电压波形畸变率和直流电压纹波倍受关注,但其精确计算比较困难。

This paper attempts to associate PFC technology with Quasi-Resonant DC/DC Converter and Synchronous Rectifier technology, to work out a novel switching power supply with higher efficiency and low contamination, which both achieved high power factor, improved effecting on electrical network and ensured high efficiency, furthermore, it is easy to be realized and controlled in circuit.

本文首先阐述了开关电源、功率因数校正技术和同步整流技术的发展及现状,对DC/DC变换的拓扑结构进行了选择,确定了带有隔离的准谐振(Quasi-Resonant)反激型电路,可以有效地降低损耗;接着本文对几种常见的PFC拓扑电路进行分析对比,从中选择了BOOST型电路,对工作在临界状况下的电路进行了分析,采用跟随输入电压的升压变换新技术,减小了电感体积,同时降低了开关管的电压应力,既简单又有效地实现了功率因数校正,并发现此技术值得推广;由于反激型变换器的效率一般都较低,所以本文在传统同步整流技术基础上对其加以改进,设计出一种新颖、高效的同步整流方案。

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