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相关概念视频

Three-Phase Voltages01:30

Three-Phase Voltages

216
A three-phase generator produces three voltages that are equal in magnitude but have a phase difference of 120 degrees. This identical magnitude and equal phase separated voltages are known as the balanced voltages and help to minimize power loss while ensuring a steady delivery of energy to connected loads. As voltage sources in a three-phase system can be configured in a wye or a delta formation, the loads connected to these systems can also be arranged in either configuration. This...
216
Multiple Voltage Sources01:25

Multiple Voltage Sources

1.1K
Generally, a single battery is not enough to power some devices. In such cases, batteries can be combined in two ways: in series or in parallel.
In series, the positive terminal of one battery is connected to the negative terminal of another battery. Hence, the voltage of each battery is added to give the net voltage, which is increased because each battery boosts the electrons that enter it. The same current flows through each battery because they are connected in series.
Batteries are...
1.1K
Generation of Three-Phase Voltage01:21

Generation of Three-Phase Voltage

350
A three-phase AC generator has a rotor with a rotating magnet placed within the stator mounted with the stationary three-phase winding to generate three-phase voltages via mutual induction. These windings are evenly distributed around the inner circumference of the stator and are arranged 120 electrical degrees apart. Three-phase stator windings consist of three separate coils or groups of coils, known as phases, each connected in Y (star) configuration or Delta configuration.
As the rotor...
350
Voltage Doubler Circuit01:23

Voltage Doubler Circuit

444
A voltage doubler circuit integrates two main components: a clamping section and a rectifier section. The clamping section consists of a capacitor (C1) and a diode (D1), whereas the rectifier section is equipped with another diode (D2) and capacitor (C2). This circuit produces an output voltage with twice the amplitude of the sinusoidal input voltage.
444
Three-Phase Circuits01:22

Three-Phase Circuits

383
AC power distribution systems have three categories: single-phase, two-phase, and three-phase systems. The single-phase circuit, common in residential settings, typically employs a two-wire system connecting a single AC source to various loads. These circuits support standard household appliances operating at 120 volts (V) and 240 V, such as lamps, televisions, and microwaves. The first generators, Niagara Falls hydro plant installed in 1895, were two-phase and designed by Nikola Tesla. The...
383
Voltage Dividers01:14

Voltage Dividers

470
In electrical circuits, resistors can be connected in series, sequentially linked one after the other. In a series configuration, the same current flows through each resistor. Ohm's law is a fundamental principle to understand the behavior of resistors in series. It expresses the voltage across these resistors in terms of the current and resistance.
Kirchhoff's voltage law implies that the sum of the voltages across the resistors in series equals the source voltage. This means that the...
470

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20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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一个固态高压脉冲电源,有三个输出电压.

Zilong Pan1, Xinbing Cheng1, Rong Chen1

  • 1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China.

The Review of scientific instruments
|February 18, 2025
PubMed
概括

这项研究介绍了一种新的固态高压脉冲电源. 它使用独特的变压器和马克思发电机实现同步输出,证明了稳定的运行和精确的定时.

科学领域:

  • 电气工程 电气工程
  • 脉冲动力系统 脉冲动力系统
  • 高压技术的高压技术

背景情况:

  • 开发高效可靠的高压脉冲电源对于各种科学和工业应用至关重要.
  • 在脉冲动力系统中实现多个输出电压的精确同步是一个重大的工程挑战.
  • 现有的设计通常在稳定性,效率和同步准确性方面面临限制.

研究的目的:

  • 设计和建造一种新的固态高压脉冲电源,能够提供三种同步输出电压.
  • 为了研究分数转率和脉冲变压器 (FRSPT) 的性能特征,当它同时作为升级变压器和磁开关使用时.
  • 为了评估在不同操作频率下开发的脉冲电源的同步精度和稳定性.

主要方法:

  • 脉冲电源的设计包括一个分数转率和脉冲变压器 (FRSPT) 和三个六级马克思发电机.
  • FRSPT被设计成既可以作为步进式脉冲变压器,也可以作为马克思发电机的磁开关.
  • 开发了使用两个共同核心的磁开关,以确保精确的多脉冲同步.

主要成果:

  • 实验设置成功产生了三个同步输出电压,每个电压的幅度约为168kV.
  • 当使用2 MΩ模拟负载时,测量电压上升时间约为102.6 ns.
  • 该系统在1,5,10和15 Hz的频率上表现出稳定的运行,同步动始终低于1.5 ns.

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Silicon Metal-oxide-semiconductor Quantum Dots for Single-electron Pumping

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结论:

  • 开发的固态高压脉冲电源有效地实现了多个输出电压的精确同步.
  • 集成的FRSPT设计可以作为电压升级和磁性开关的高效组件.
  • 该系统的稳定性能和低同步动使其成为要求高的脉冲动力应用的有希望的解决方案.