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Note: A novel trigger generator for a pseudospark switch.

J Chatzakis1, S M Hassan2, E L Clark1

  • 1CPPL, Department of Electronic Engineering, T. E. I. of Crete, Romanou 3, Chania 73133, Greece.

The Review of Scientific Instruments
|February 2, 2015
PubMed
Summary
This summary is machine-generated.

A new trigger generator using insulated gate bipolar transistors enables high-speed, low-jitter triggering of pseudospark switches. This compact device increases power density and simplifies triggering without pulse shaping circuits.

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Area of Science:

  • Electrical Engineering
  • Plasma Physics
  • Pulsed Power Systems

Background:

  • Pseudospark switches are high-voltage, high-current switching devices requiring precise triggering.
  • Existing trigger generators often involve bulky components and can have limitations in repetition rate and jitter.
  • The need for compact, efficient, and reliable trigger systems for pseudospark applications is growing.

Purpose of the Study:

  • To develop a novel, compact trigger generator for pseudospark switches.
  • To achieve fast rise times and low jitter in the output trigger pulses.
  • To enable efficient triggering of pseudospark gaps without additional pulse shaping.

Main Methods:

  • A trigger generator was designed using a series connection of insulated gate bipolar transistors (IGBTs).
  • The generator was operated in single shot mode with a repetition rate up to 1 kHz.
  • Output pulse characteristics (voltage, duration, rise time, jitter) were measured into a 50 Ω load.

Main Results:

  • The developed trigger generator produces 3 kV, 1 μs pulses with a rise time and jitter of less than 1 ns.
  • The device operates reliably at repetition rates up to 1 kHz.
  • The design eliminates bulky high-voltage components, significantly reducing the overall volume.

Conclusions:

  • The novel IGBT-based trigger generator offers a compact and efficient solution for pseudospark switch operation.
  • The low jitter and fast rise time ensure reliable triggering of single or multiple pseudospark gaps.
  • This advancement facilitates increased power density and simplified system integration in pulsed power applications.