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Related Experiment Videos

Reversible, high-voltage square-wave pulse generator for triggering spark gaps.

A Robledo-Martinez1, R Vega, L E Cuellar

  • 1Departmento de Energia, Universidad Autónoma Metropolitana, Avenida San Pablo 180, 02200 Mexico City, Mexico.

The Review of Scientific Instruments
|June 8, 2007
PubMed
Summary
This summary is machine-generated.

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This study introduces a novel reversible square-pulse generator using coaxial cables and a thyratron switch. The design offers adjustable pulse duration and voltage for various high-voltage applications.

Area of Science:

  • Electrical Engineering
  • Pulsed Power Systems

Background:

  • High-voltage pulse generation is critical for applications like particle accelerators and fusion research.
  • Existing pulse generators often face limitations in pulse duration control, reversibility, and size.

Purpose of the Study:

  • To design and implement a compact, reversible square-pulse generator.
  • To achieve precise pulse duration control using coaxial cable length.
  • To demonstrate the generator's capability in triggering large Marx generators.

Main Methods:

  • Utilized coaxial cables for charge storage and pulse shaping.
  • Employed a thyratron as the high-speed switch.
  • Developed single-stage and two-stage (inverting) generator configurations.
  • Addressed challenges of "flying shields" and inter-shield insulation.

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Main Results:

  • Achieved nominal output voltages of 5-30 kV.
  • Pulse duration is directly determined by coaxial cable length.
  • Obtained pulse rise times of 30-40 ns, dictated by thyratron switching.
  • Successfully demonstrated the generator's application in firing a large Marx generator.

Conclusions:

  • The proposed coaxial cable-based generator offers a versatile and compact solution for reversible square-pulse generation.
  • The design allows for flexible pulse duration control and voltage output.
  • The generator is suitable for triggering larger pulsed power systems.