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Related Experiment Videos

A 6 GW nanosecond solid-state generator based on semiconductor opening switch.

A I Gusev1, M S Pedos1, S N Rukin1

  • 1Institute of Electrophysics, UB, RAS, Ekaterinburg 620016, Russia.

The Review of Scientific Instruments
|December 3, 2015
PubMed
Summary

A new double forming line (DFL) circuit enhances a solid-state generator

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Pulsed power technology based on semiconductor opening switches: A review.

The Review of scientific instruments·2020

Area of Science:

  • High-power pulsed systems
  • Pulsed power technology
  • Solid-state pulsed power

Background:

  • High-power nanosecond pulsed generators are crucial for various scientific and industrial applications.
  • Semiconductor opening switches (SOS) are key components in achieving high power densities.
  • Existing pumping circuits face limitations in minimizing parasitic inductance and capacitance.

Purpose of the Study:

  • To introduce and describe a novel double forming line (DFL) based pumping circuit for semiconductor opening switch (SOS) generators.
  • To demonstrate the advantages of the DFL circuit over traditional lumped capacitor circuits.
  • To enhance the overall performance and peak power output of nanosecond solid-state generators.

Main Methods:

  • Development and implementation of a new SOS pumping circuit utilizing a double forming line (DFL).

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  • Characterization of the generator's performance, including output voltage, pulse width, and peak power.
  • Analysis of the SOS current cutoff rate and braking power.

    • Main Results:

    • The described nanosecond solid-state generator achieves a peak power of up to 6 GW.
    • The new DFL pumping circuit minimizes parasitic inductance and capacitance, increasing SOS cutoff current amplitude.
    • The generator provides an output voltage of 500-900 kV with a pulse length of ~7 ns and a repetition frequency up to 1 kHz in burst mode.
    • The SOS cutoff rate reaches 7 kA/ns, with a braking power of 13 GW for loads >100 Ω.

    Conclusions:

    • The proposed DFL pumping circuit significantly improves the performance of nanosecond solid-state generators.
    • This advancement enables higher peak power and efficiency in pulsed power systems.
    • The developed generator is a powerful tool for research requiring high-energy, short-duration pulses.