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Pulse Transformer Type Trigger

A pulse transformer and trigger technology, applied in pulse technology, electrical components, electronic switches, etc., can solve the problems of leakage inductance, large multi-stage ball gap jitter, and many supporting equipment, and achieve wide application, small energy, and reduced The effect of ablative strength requirements

Active Publication Date: 2017-10-20
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a pulse transformer type trigger for triggering a two-electrode high-coulomb high-current gas switch, which can overcome the multi-level ball gap of the traditional Marx trigger The problem of large jitter and many supporting equipment can overcome the insulation, leakage inductance and volume problems of traditional pulse transformer triggers

Method used

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  • Pulse Transformer Type Trigger

Examples

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Effect test

Embodiment 1

[0044] This embodiment is a trigger for a two-electrode high-coulomb high-current gas switch. The Marx series of self-breakdown type fast charge and discharge is 3 levels. Output pulse voltage with an amplitude of +45kV and a leading edge of 1.7μs; the three capacitors on the secondary side all have a value of 1700pF and a withstand voltage of 50kV; the synchronous breakdown of the three ball gaps realizes amplitude superposition and leading edge steepening. The two-electrode high-coulomb high-current gas switch can reliably break down when it is filled with air at 10 atmospheres.

Embodiment 2

[0046] This embodiment is a trigger for a two-electrode high-coulomb high-current gas switch. The self-breakdown type fast charge and discharge Marx series is 5, the primary charging capacitor value is 5 μF, the charging is 3kV, and the output amplitude of the pulse transformer is Pulse voltage of +25kV, leading edge 10μs; the four capacitors on the secondary side all have a value of 3000pF, 35kV withstand voltage; five ball gaps break down synchronously to achieve amplitude superposition and leading edge steepening. The two-electrode high-coulomb high-current gas switch can reliably break down when it is filled with air at 8 atmospheres.

Embodiment 3

[0048] This embodiment is a trigger for a two-electrode high-coulomb high-current gas switch. The Marx series of self-breakdown type fast charge and discharge is 6. The capacitance of the primary side charge capacitor is 3 μF, the charge is 2kV, and the output amplitude of the pulse transformer is The value is -20kV, the pulse voltage of 15μs on the leading edge; the three capacitors on the secondary side all have a value of 2000pF, and the withstand voltage is 30kV; the synchronous breakdown of the six ball gaps realizes the amplitude superposition and the sharpening of the leading edge. The two-electrode high-coulomb high-current gas switch can reliably break down when it is filled with air at 9 atmospheres.

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Abstract

The invention discloses a pulse transformer type trigger, which belongs to the technical field of gas switch triggering. It includes the primary side drive part, pulse transformer, self-breakdown type fast charge and discharge Marx part and DC blocking protection part connected in series. The self-breakdown type fast charging and discharging Marx part of the present invention performs amplitude superposition and leading edge steepening on the secondary capacitor voltage of the pulse transformer. The input voltage amplitude, the output voltage amplitude polarity, the parameters of the pulse transformer and the parameters of the self-breakdown steepening part of the trigger can be adjusted as required. The trigger of the invention can overcome the problems of large multi-level ball gap jitter and many supporting equipment of the traditional Marx trigger, and can overcome the insulation, leakage inductance and volume problems of the traditional pulse transformer type trigger.

Description

technical field [0001] The invention belongs to the technical field of gas switch triggering, and in particular relates to a pulse transformer type trigger. Background technique [0002] Two-electrode high-coulomb high-current gas switch is an important part of the pulse power supply device, and the pulse with high amplitude (≥100kV) and fast leading edge (≤20ns) is often used to trigger conduction. Commonly used methods to obtain high amplitude, steep leading edge, and low jitter pulses include: traditional Marx triggers, pulse capacitors discharged through gas switches to output pulses, Tesla transformers charging pulse forming lines, pulse transformer triggers, and so on. [0003] The traditional Marx trigger (citing the patent "A Marx trigger for a two-electrode gas switch", Yang Lanjun, 2010.05.26, application publication number CN101715269A) uses multiple low-inductance energy storage capacitors to charge in parallel first, in a standby state, and then connect them in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03K17/567
Inventor 杨兰均李晨辉霍鹏安珊刘瞻
Owner XI AN JIAOTONG UNIV