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Low-jitter self-triggering spark discharge preionization switch

A spark discharge and self-triggering technology, applied to spark gaps with auxiliary trigger devices, spark gaps, spark gap parts, etc., can solve the problem of low switch jitter, achieve reduced switch jitter, large adjustment range, and low jitter characteristics Effect

Active Publication Date: 2022-02-01
NORTHWEST INST OF NUCLEAR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the self-triggering time of the existing pre-disconnection switch in the background technology, trial and error adjustment is required, and the self-triggering time tested is also difficult to make the switch within the full working voltage range problem of low jitter operation, thus proposing a low jitter self-triggering spark discharge pre-disconnection switch

Method used

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Embodiment Construction

[0024] In order to make the purpose, advantages and features of the present invention more clear, a low-jitter self-triggering spark discharge pre-disconnection switch proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific characteristic data.

[0025] The basic structure of the self-triggering spark discharge pre-disconnection switch can be found in figure 1 ,include:

[0026] Two hemispherical main electrodes 1 made of stainless steel, the main gap 2 is formed between the two main electrodes 1;

[0027] A trigger electrode disc 3 made of stainless steel. The inner hole diameter D of the trigger electrode disc 3 currently used is mostly 1-2 cm. Two trigger gap electrodes 4 are fixed on the trigger electrode disc 3. The anode of the trigger gap and the trigger electrode disc are at the same potential. The gap cathode is insulated from the trigger electrode disk 3 through a ceramic sleeve 5, and th...

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Abstract

The invention discloses a low-jitter self-triggering spark discharge preionization switch, which is characterized in that an electric field of a main gap covers an area where a triggering gap is located when voltage is applied to the switch by expanding the aperture of an inner hole of a triggering electrode disc, so that initial electrons in a spark discharge channel move towards the main gap under the action of the electric field after the triggering gap is broken down, the initial electrons become initial effective electrons, and the initial effective electrons trigger switch breakdown. Therefore, the low-jitter self-triggering spark discharge preionization switch does not need to consume a large amount of time to test and select the optimal self-triggering moment, and low-jitter operation of the switch within the full working voltage range is rapidly and effectively achieved.

Description

technical field [0001] The invention belongs to the application of gas discharge in the technical field of pulse power, and in particular relates to a low-jitter self-triggering spark discharge pre-disconnection switch. Background technique [0002] The driving source of the large-scale electromagnetic pulse simulator needs to use a two-stage compression circuit to achieve steepening of the output waveform, and at the same time needs to use a bipolar loading pulse source to increase the amplitude of the output waveform. [0003] Considering the cost of the device and the demand for mobile transportation, the high-voltage low-jitter self-triggering gas switch is used as the middle storage switch of the low current pulse power source such as the electromagnetic pulse simulator. At this time, the middle storage switch works at the leading edge for about 100-300ns Under the pulse voltage of , the switch needs to break down near the peak value of the pulse. [0004] Since the pr...

Claims

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Application Information

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IPC IPC(8): H01T2/00H01T1/20
CPCH01T2/00H01T1/20
Inventor 王天驰陈伟杜应超王海洋李俊娜黄涛
Owner NORTHWEST INST OF NUCLEAR TECH
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