Effect of Working Coefficient on Induced Breakdown Characteristics of Plasma-Triggered-Based Gas Gap Switch in Fast Bypass Conditions

Dong, Bingbing; Guo, Zhiyuan; Xiang, Nianwen

doi:10.1109/tps.2022.3227082

Cited by 3 publications

(1 citation statement)

References 12 publications

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“…Therefore, the device structure, material properties, gas gap, fabrication methodology/quality, gas environment, and even driven waveform are the factors that influence the jitter. For example, jitter is influenced by electrode material [18], electric-field distribution between the electrodes [19], channel diameter and gas pressure [20], cavity inductance, and mutual inductance [21].…”

Section: Typical Working Processmentioning

confidence: 99%

Source–drain switching characteristics when coupled with a gate-controlled DBD in a microplasma switch

Chen,

Wang,

et al. 2024

J. Phys. D: Appl. Phys.

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Microplasma switches have attracted much attention in harsh environment applications such as satellites, space exploration, nuclear reactors and oil drilling because of their inherent characteristics. Microplasma switch is generally constructed by source, drain, and gate electrodes, current conduction is generated between drain and source (DS), and modulated by gate. In this work, to improve the gate lifespan and device stability, a microplasma switch with gate dielectric barrier structure was fabricated due to the even and stable discharge of dielectric barrier discharge (DBD) and a parameterized nanosecond pulse voltage signal was applied to the gate. Under the effect of the DS voltage, pulsed DS current is triggered by gate pulse since a large number of charged particles are generated with gate DBD, which shows the DS switching behavior triggered by gate pulse. The microplasma switch operates stably(with an average delay jitter of less than 50 ps) at the repetition frequencies (up to 80 kHz), moreover, the influence of experimental conditions on switching performance is systematically investigated. Conduction current and delay, which related to discharge intensity and speed, are influenced by electric field strength of channel (decided by pulse amplitude and DS voltage) and its variation rate (decided by rising and falling edge time of pulse). In addition, it is influenced by varying breakdown voltage of DS (decided by pd, i.e., gas pressure times DS spacing), which can result in working coefficient variation. It is also influenced by varying wall voltage (decided by pulse width and frequency), which can result in the decreases of total voltage of channel.

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Section: Typical Working Processmentioning

confidence: 99%

Source–drain switching characteristics when coupled with a gate-controlled DBD in a microplasma switch

Chen,

Wang,

et al. 2024

J. Phys. D: Appl. Phys.

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Experimental investigation and theoretical analysis of the breakdown time delay and jitter of multi-gap gas switch gaps

Wen,

Wang,

Fan

et al. 2023

Review of Scientific Instruments

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The gas gap of a multi-gap gas switch can be classified as trigger and self-breakdown gaps based on the breakdown condition. A two-gap gas switch consisting of a trigger gap and a self-breakdown gap is developed to independently study the breakdown characteristics of these two types of switch gaps. Trigger experiments for the switch are conducted under various trigger voltage rise rates and different working coefficients. The experimental results indicate that the trigger gap has significantly more jitter than the self-breakdown gap, and the overall performance of the gas switch is determined primarily by the trigger gap. A novel pre-ionization structure with disks is implemented into the two-gap gas switch, considerably decreasing the breakdown delay of the trigger gap and reducing the jitter to a quarter or even less compared to that without pre-ionization. A calculation model of the breakdown time delay for the trigger gap is provided based on the foundational development of the avalanche. The probability distribution of the time required for the initial electron generation is derived in the absence of pre-ionization. The calculated breakdown time delay agrees well with the experimental results in cases with and without pre-ionization under most trigger settings. The method and principle of calculating the breakdown time delay can analyze the collapse of a gas gap with different electrode configurations (quasi-uniform or uniform electrical fields) and various gas media under a nanosecond pulse voltage.

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Study on Triggering Failure Test Criterion and the Law of ‘Touch-Through’ Characteristics of Gas Switch Plasma Jet

Dong,

Meng,

Guo

2024

IEEE Trans. Plasma Sci.

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Effect of Working Coefficient on Induced Breakdown Characteristics of Plasma-Triggered-Based Gas Gap Switch in Fast Bypass Conditions

Cited by 3 publications

References 12 publications

Source–drain switching characteristics when coupled with a gate-controlled DBD in a microplasma switch

Source–drain switching characteristics when coupled with a gate-controlled DBD in a microplasma switch

Experimental investigation and theoretical analysis of the breakdown time delay and jitter of multi-gap gas switch gaps

Study on Triggering Failure Test Criterion and the Law of ‘Touch-Through’ Characteristics of Gas Switch Plasma Jet

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