1、

Analysis and Waveform Reconstruction of Nanosecond Pulse Voltage Divider Measurement System

纳秒脉冲电容分压器测量系统分析及波形重建

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2、

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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3、

Comparing the test results of working frequency interflow high voltage and monopolar pulse high voltage, showed that highest removal efficiency was gained with ambipolar pulse voltage;

与工频交流高压、单极性脉冲高压的试验结果比较表明,双极性脉冲高压取得了最高的降解效果;

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4、

The device consists of pulse control circuit, optical coupling isolation, MOSFET driver, waveform control unit, pulse voltage regulator modules, those are implemented based on CPLD and MOSFET.

以CPLD、MOSFET等为主要芯片设计了脉冲控制电路、光耦隔离和MOSFET驱动电路、波形调节单元、脉冲电压调节单元等,获得了符合加工要求的输出脉冲波形。

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5、

Power devices of inverter must be controlled in the zero level of DC pulse voltage. It not only meets certain switching rule, but also changes switching state in order to realize zero voltage switching.

逆变器功率管为实现零电压开关,除了要满足一定的开关规律外,还必须控制在直流脉冲波形的过零处改变开关状态。

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6、

Characteristics of the Streamer Discharge in Water under Positive Pulse Voltage

正脉冲电压下水中流注放电特性的研究

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7、

Welding parameters such as angle of bending tip, pulse voltage, wire feed rate, pulse mode, size of groove and welding speed can affect the appearance of weld.

导电嘴弯曲角度、送丝速度、峰值电压、协同模式、焊接速度和坡口尺寸均会对窄间隙焊缝成形产生重要影响。

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8、

These reasearch results will greatly promote advancement of theory of aging and breakdown under such pulse condition. As a result, frequency control technique can be widely used. A novel PD signal measurement system and statistic analysis software is presented under square wave pulse voltage.

通过这些研究,将极大地促进变频条件下绝缘老化和击穿理论的发展,使变频调速技术应用前景更加广泛。设计了一种新的脉冲电压下局部放电测量系统和统计分析软件。

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9、

The peak of pulse voltage decreases sharply at first, and then slowly, but at last increases at the tail of the discharge wire.

脉冲电压峰值开始衰减较快,然后衰减趋于平缓,在放电线末端电压峰值又重新升高。

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10、

Mutual effect of DeSO_2/ DeNO_x and removal of fly ash from simulated flue gas, which was made by combining SO_2 NO_x and fly ash with air, was studied by utilizing high voltage positive pulse corona produced by nanosecond pulse voltage generator.

采用SO2、NO和飞灰与空气混合而成的模拟烟气和纳秒级脉冲电源,研究高压正脉冲电晕脱硫脱硝和除尘之间的相互影响关系。

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11、

The Difference of TDDB under Constant Voltage Stress and Pulse Voltage Stress

脉冲和直流应力下栅氧化膜击穿特性的差别

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12、

The analyses show that overvoltage is a function of the rise time of the converter output pulse and the lengths of the traction motor cables, and that its magnitude can be as large as 1.9 times of the pulse voltage.

研究结果表明,变频牵引电机端子过电压由脉冲上升沿时间和电缆长度共同决定,其幅值最大可达脉冲电压的1.9倍。

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13、

If the time harmonic source is assumed to be constant voltage, the summed pulse propagation is the impulse response along the line.

若各频率成份之电源为定电压,则所得时域脉波即脉冲电压源在传输线上之脉冲响应。

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14、

High Voltage Pulsed Power Source for Insulation Aging Test on Continuous Pulse Condition

一种用于脉冲绝缘老化试验的高压脉冲电源

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15、

The new high voltage pulse generator is mainly composed of condense capacitors, hydrogen thyratron, high voltage transformer and voltage adapter.

介绍了一种可调的高压脉冲发生器,该发生器主要由储能电容器组、氢闸流管、电压调节器、保护电路、高压变压器等部件组成。

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16、

By using C8051F040 SCM to control the neutron tube ′ s filament voltage, the target voltage and the pulse of the anode, the downhole tool can work at an ideal state.

通过C8051F040单片机对中子管的灯丝电压、靶压以及阳极脉冲进行控制,使其工作在一个理想状态,是提高仪器测井效率、延长中子管使用寿命的重要手段。

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17、

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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18、

Rise and fall time, pulse width, and AC/ DC voltage can be measured at the push of a button or with a single HP-IB command.

上升和下降时间,脉冲宽度,和AC/直流电压可以衡量在推动一个按钮,或与一个单一的惠普-IB接口命令。

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19、

Results of the research indicated that: ( 1) Three electrode structure bringed in pulse high voltage can increase breakdown voltage and enhance the stabilization of streamer discharge, which is advantageous for production of prompt energetic particle and for increasing the removal efficiency of VOCs.

三种电极结构引入脉冲高压可以提高电极间的击穿电压,并使流光放电更加稳定,产生瞬间的高能粒子,从而提高甲苯和氯苯的脱除效率。

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20、

It improved the battery serve life greatly, which using large charge current at beginning, controlling the charge time of constant voltage and using pulse charge in the end.

起始以大电流恒压充电,并严格控制恒压时间,后期以脉充电流结束能使电池的寿命大大提高。

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