负电压
- negative voltage
![负电压](../cache/1400068.jpg)
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h增加的过程中,负电压区间离子电流从逐渐增大的趋势变为先减小后增大的趋势,等离子体电势较小的区域变化趋势更明显。
With h increasing , the ion current in negative voltage zone changes from monotonously increase to the first decrease and then increase .
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DIS有自身的缺点,由于有一半的插头接通一个可接受的负电压,而另一半接通不太能接受的正极。
DIS has its own drawbacks by having half of the plugs firing with an acceptable negative voltage , while the other half is fired by the less acceptable positive polarity .
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收集板上的正、负电压信号分别由激光烧蚀金属Cu产生离子和电子发射而引起,高能电子对环境气体具有碰撞电离的作用。
Electron launching resulted in positive voltage signal of collector plate , and ion launching resulted in negative voltage signal of collector plate .
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该变换器完成从正电压至正和负电压的DC-DC升压变换,功率密度和效率高,拓扑结构简单价廉。
These converters perform from positive to positive and negative DC DC voltage increasing conversion with high power density , high efficiency and cheap topology in simple structure .
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Buck-Boost开关变换器能方便地实现升压和降压及负电压输出,是直流开关变换器的重要组成部分。
Buck-Boost converter is one of the important elements of switching power supply , which can realize step-up , step-down and negative output voltage easily .
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以Dickson电荷泵的基本原理为出发点,研究了一种将正电压输入转为负电压输出的开关电容电路。
A kind of switching capacitor circuit , which can transform the positive voltage into the negative one according to the principles of Dickson charge pump , is developed in this paper .
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这样就可以计算出满负电压值和最大电压值。
The nominal full load voltage and maximum voltage have been computed .
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三端子,额定电压,降负电压稳压器密封封装。
Three Terminal , Fixed Voltage , Dropout Negative Voltage Regulator Hermetic Packages .
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能够产生真空管金属板稳定负电压的电池。
Battery for supplying a constant positive voltage to the plate of a vacuum tube .
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连续辐射的产生与持续时间和收集板上接收电子的负电压信号相对应。
Continuum radiation was corresponsive to negative voltage signal of collector plate , and high-kinetic energy electron made ambient ionized .
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在串行传输中,从一种状态(如正电压)转换到另一种状态(如负电压)的转换过程。
The switching from one state ( e.g. , positive voltage ) to another ( negative ) in a serial transmission .
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这个弯曲在反应标记上产生负电压,其反过来为晶体管的基极供电。
This flexing generates a negative potential at the feedback tab , which feeds back to the base of the transistor .
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此电路结构简单,性能优良,易于集成,可广泛应用于输出负电压的电源产品中。
Also it can be easily integrated and applied widely in power supply products , the output of which is negative voltage .
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当空气供给不足产生负电压,阳极催化层随着时间的变化与产生负电压前相比没有明显的变化。
When the air supply is insufficient to produce negative pressure , the anode catalyst layer did not change significantly over time after and before negative pressure emerging .
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提出并研究了一种压电致动器电源,它可以实现对压电致动器的从负电压到正电压的双向电压作用,且作用电压可以很高并可不间断连续作用。
A bidirectional power supply for piezoelectric actuator was proposed and studied , which can apply high bidirectional voltage to the piezoelectric actuator continuously from negtive to positive .
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结果表明:较低的负电压有利于氧化膜的生长,延缓二次放电现象的发生。
It is found that the lower negative voltage is beneficial to the growth of oxide films , and also delays the presence of the second microarc discharge phenomenon .
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而高负电压会加速成膜速度并导致较为剧烈的二次放电现象,使膜的致密性降低,从而降低膜的性能。
However , an intensive second-discharge phenomenon is observed under high negative potential , which increases porosity of the film and leads to the decrease of the corrosion resistance .
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因此,此类放大器会有杰出的低频供电抑制,但负电压供电会被限制在高频。
As a result , an AMPLIFIER of this type may have outstanding low frequency POWER supply rejection , but the negative supply rejection is fundamentally limited at high frequencies .
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重点讨论了该核心单元面积小、与逻辑工艺完全兼容等优点,并提出其设计中的四个难点&数据保持时间短、操作需要负电压、数据保持时间的温度敏感性及易受干扰特性。
In this paper , the advantages of gain cell such as small cell size , logic process compatibility and etc are discussed . Furthermore , four design difficulties , small data retention time , negative voltage requirement , temperature and disturbance sensibility of data retention time are performed detailedly .
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文中详细讨论了SVG补偿电网电压不平衡的原理,将SVG控制作为受负载端负序电压控制的电流源,分析了其补偿性能与各个参数的相互关系。
The relationship between all the parameters and the compensating characteristics is analyzed in detail .
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最后介绍了PCC处负序电压的实时检测方法。
The negative sequence voltage decomposition method is also introduced .
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在3DSVPWM技术中,零矢量变为零轴上的正向和负向电压矢量,对逆变器的输出有影响。
In the 3D-SVPWM technique , the null vectors which change into the positive vector and the negative vector influence the outputs of the converters .
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通过XRD分析,研究了正向、负向电压对铝合金微弧氧化陶瓷层相组成的影响。
The effects of positive and negative voltage on phase constitution of ceramic coating on aluminum alloy prepared by micro-arc oxidation were studied by XRD analysis .
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双输出DC-DC变换器能将正输入电源电压变换成正和负输出电压,由两个通道构成。由于寄生因素的影响。
Double output DC DC converters can convert the positive input source voltage to positive and negative output voltages .
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分析了三相UPS输出电压不平衡的机理,指出负序电压是造成输出电压不平衡的主要原因。
Analyze the mechanism of asymmetry three-phase output voltage , and deduce the negative sequence output voltage is the main reason for the output voltage asymmetry .
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通过双回路电路模型的建立,解释了EFT瞬态过程中特有的负向电压这一特殊现象。
Establishing a double-loop circuit mode , this mode can explain the special negative voltage phenomenon in EFT transient process .
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提出一种负序电压前馈控制的不对称控制策略,抑制了D-STATCOM因负序电压分量造成的过流,保障了装置的安全可靠运行。
An unbalanced control strategy of feed-forward control for negative sequence voltage is also carried out to suppress converter overcurrent caused by negative voltage in order to make D-STATCOM safe .
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相反方向的R/T值较小,T的(正或负)电压和时间较大和较长。
The ratio of opposite direction R / T is small .
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负向电压对镁合金微弧氧化膜层的影响
Influence of negative voltage on coating of magnesium alloy micro-arc oxidation
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基于负序电压极化的自适应阻抗继电器研究
Study on adaptive impedance relay based on negative sequence voltage polarization