1、

Design of Under Voltage Lock Out Circuit Based on 0.5 μ m BCD Process

基于0.5μm BCD工艺的欠压锁存电路设计

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2、

Automatic Protection: overload, short circuit, high temperature, low oil pressure, under voltage, oil temperature, overspeed protection, auto trip, stop function;

自动保护功能:具有过载、短路、高水温、低油压、欠电压、油高温、超速保护、自动跳闸、停机功能;

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3、

internal circuit protection includes thermal shutdown with hysteresis , under voltage lockout , locked rotor and dead time protection .

内部电流保护包括因滞后引起的过热关机、接地钳位反激二极管及交叉电流保护。

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4、

Such as: band gap reference voltage, the bias circuit, error amplifier, oscillator, PWM comparator, over thermal protection, under voltage protection, logic control part.

其中包括:带隙基准源、偏置电路、误差放大器、振荡器、PWM比较器、过温和欠压保护电路、逻辑控制等部分。

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5、

It possess complete protection functions over short circuit, over current, under voltage. etc.

具备短路 、 过流 、 欠压等完备的保护功能.

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6、

Measurement of inherent attenuation by the method of voltage level gap has errors caused by the unbalance between the input/ output impedance of the measuring instrument and the characteristic impedance of the signal wire under test. This article discusses in detail the rectification of the errors.

在采用电压电平差法测量固有衰减时,由于测量仪器的输出阻抗、输入阻抗与被测信号传输线的特性阻抗的不匹配,将造成测量误差,本文详细论述其误差的修正。

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7、

In this paper, firstly, based on the analysis of the models of the primary arc and the secondary arc under the temporary single-pole fault, the waveform of the voltage of faulty phase under the different type of fault is simulated by ATP-EMTP.

本文首先分析了单相瞬时性故障情况下的一次电弧和二次电弧模型,利用ATP-EMTP仿真软件仿真得到了不同故障性质情况下的故障相端电压波形;

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8、

The end electrical field distribution under polarity reverse test voltage of valve winding in converter transformer is calculated. The results are analyzed.

计算了换流变压器阀侧绕组在极性反转试验电压下端部电场的分布情况,并对计算结果进行了分析。

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9、

It is explained from both thermodynamics and metal semiconductor contact points of view why a pn junction cannot output voltage or current at a thermal equilibrium condition ( under a zero bias).

从热力学第一定律、金属-半导体接触等不同角度详细解释了热平衡(零偏下)时pn结不可能对外输出电压和电流的原因。

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10、

Loss Analysis of TCR Valve under High Voltage Test Mode

TCR阀高电压试验方式中的损耗分析

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11、

In consideration of thermochemical method in demulsification of high water-content crude oil, the influences of temperature and quantity of demulsifier on the demulsification efficiency and demulsification velocity were investigated. Study on Demulsification Rate Under High Voltage Electric Field

针对高含水原油破乳中广泛采用的热化学法,试验研究了加热温度、加入破乳剂量对破乳效果和破乳速率的影响。水/油型乳液的高压电破乳速率的研究

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12、

Then the voltage waveforms of the Three-phase bridge controlled rectifier and 12-pulse waveform controlled circuit under the fault and normal condition are analyzed and researched in detail, the faults states are summarized and classified according to the voltage waveforms indifferent circumstance.

其次对三相桥式整流电路、12脉波可控整流电路等大功率电力电子装置整流电路正常运行及故障状态下整流电压波形进行了详细分析和研究,根据电压波形对故障状态进行了总结和归类。

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13、

Transient Analysis on Stator Winding Short-circuit of Three-phase Induction Motor Under Square Voltage Source

方波电压激励下感应电动机定子绕组短路的瞬态仿真

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14、

An advanced instantaneous detection method for fundamental positive-sequence active current under unsymmetrical and distorted three-phase system voltage

三相电压畸变且不对称时电流基波正序有功分量的改进瞬时检测方法研究

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15、

It is suitably selected the small temperature expansion coefficient material to take the skeleton. According to the temperature to the coil output voltage influence, the revision is carried on under the different temperature.

宜选用温度膨胀系数小的材料作为骨架,也可根据试验测出温度对线圈输出电压的影响,在不同温度下进行修正。

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16、

The output voltage waveforms of matrix converter which is based on the space vector modulation are analysed under the unbalanced input voltage. A time variant modulation ratio method is proposed.

在非对称输入电压情况下,对基于双空间矢量调制的矩阵变换器的输出电压波形进行了分析,提出了利用时变调制比改善输出电压波形的方法。

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17、

This paper discusses the difference of TDDB ( Time Dependence Dielectric Break down) under constant voltage and pulse voltage stress.

本文讨论了在直流电压应力和脉冲电压应力作用下栅氧化膜击穿寿命的差别,脉冲应力下栅氧化膜击穿寿命大于直流电压下的击穿。

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18、

Spark test voltage values given by the potential difference between the test electrode and the conductor of the core or cable under test shall be specified in the cable standard.

火花试验时,电极与被测试电线或电缆之间的电位差的值在电线标准中有明确规定。

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19、

The wave of voltage and current under the most serious failure is obtained by simulation analysis.

通过仿真分析,得出了整流器最严重故障情况下的电压、电流波形。

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20、

The threshold voltage of a-Si ∶ H/ SiN_x ∶ H TFT will shift under long time gate bias stress, it is mostly leaded by charge trapping in gate insulator and defect creation in semiconductor.

a-Si∶H/sin x∶H TFT在长时间栅偏应力作用下,会产生阈值电压漂移,这主要是由绝缘层电荷注入和有源层亚稳态产生而引起的。

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