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Van de Graaff Generator01:15

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Van de Graaff generators (or Van de Graaffs) are devices used to demonstrate high voltage due to static electricity that can also be used for research. Robert Van de Graaff first built one in 1931 (based on original suggestions by Lord Kelvin) for use in nuclear physics research.
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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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Published on: June 8, 2018

A compact, all solid-state LC high voltage generator.

Xuliang Fan1, Jinliang Liu

  • 1College of Opto-Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China. fanxuliang716@yahoo.com.cn

The Review of Scientific Instruments
|July 5, 2013
PubMed
Summary
This summary is machine-generated.

A compact, solid-state LC high voltage generator using a saturable pulse transformer achieves significant voltage multiplication. It reached 59.5 kV from 857 V, demonstrating effective high voltage generation for diverse applications.

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Area of Science:

  • Electrical Engineering
  • High Voltage Technology
  • Pulsed Power Systems

Background:

  • LC generators are crucial for high voltage generation.
  • Existing designs often face limitations in compactness and solid-state integration.
  • Saturable pulse transformers offer potential for advanced high voltage pulse shaping.

Purpose of the Study:

  • To propose and experimentally validate a compact, all solid-state LC high voltage generator.
  • To investigate the voltage multiplication capabilities using a saturable pulse transformer.
  • To assess the performance characteristics, including output voltage and pulse rise time.

Main Methods:

  • Theoretical analysis and circuit simulations to verify the generator design.
  • Experimental implementation of a two-stage energy storage capacitor LC generator.
  • Testing with varying isolation inductance and charging voltages.

Main Results:

  • The proposed LC generator operated successfully, achieving voltage multiplication.
  • An output voltage of 59.5 kV was reached from a charging voltage of 857 V (step-up ratio of ~69).
  • A voltage pulse rise time of 8.7 ns was recorded using a self-breakdown gas gap switch, indicating low circuit inductance.

Conclusions:

  • The compact, all solid-state LC generator effectively multiplies voltage using a saturable pulse transformer.
  • The demonstrated performance, including high step-up ratio and fast rise time, makes it suitable for various high voltage applications.
  • This design offers a promising solution for advanced pulsed power systems.