Synchronous triggering method for multi-stage series-connected linear type transformer driving source

A technology of linear transformer and driving source, applied in pulse shaping and other directions, can solve problems such as low feasibility

Inactive Publication Date: 2011-08-17
NORTHWEST INST OF NUCLEAR TECH
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  • Abstract
  • Description
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Problems solved by technology

In addition, the focus and optical path adjustment before the laser works make it less

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  • Synchronous triggering method for multi-stage series-connected linear type transformer driving source
  • Synchronous triggering method for multi-stage series-connected linear type transformer driving source
  • Synchronous triggering method for multi-stage series-connected linear type transformer driving source

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Embodiment Construction

[0026] The scheme and feasibility of secondary coupling overvoltage triggering LTD will be described below from two aspects.

[0027] (1) Feasibility of rapid overvoltage obtained by the downstream induction cavity switch through magnetic core coupling

[0028] When only the switches in the upstream induction cavities (for example, the first five stages) are triggered to break through and close through external triggering, the upstream induction cavities generate voltage superimposed electromagnetic pulses through secondary electromagnetic induction, which will travel along the secondary transmission line to the load. Direction propagation, the switch in the sixth-stage induction cavity will inductively couple the overvoltage generated by the previous stages through its magnetic core, and the induced voltage of the switch in the subsequent induction cavity will gradually decrease with its position, as shown in figure 1 shown. If the switch in the sixth-level induction chamber...

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Abstract

The invention relates to a novel triggering method of a large-scale fast discharge linear transformer type driving source formed by connecting tens of stages of induction cavities in series. The novel triggering method comprises the following steps: adopting a triggering system containing n groups of triggering units for providing external triggering pulses for a n-stage induction cavity at the uppermost stream, and further realizing strong triggered closing of a gas spark switch corresponding to the induction cavity; enabling a front n-stage induction cavities to reach a (n+1)-stage induction cavities through spreading electromagnetic pulses which is superposed by voltage of secondary electromagnetic induction along a secondary transmission line; and coupling a switch in the (n+1)-stage induction cavity through a magnetic core, applying the overvoltage electromagnetic pulses in the secondary transmission line to the gas spark switch for realizing the fast overvoltage breakdown closing of the switch till the electromagnetic pulses achieve a load. By adopting the triggering method, the reliability of operation of an LTD (linear transformer driver) device and the triggering system thereof are improved, thereby having important value in popularizing an LTD (Laser Target Designator) to be applied in the national defense fields, such as inertial confinement fusion, fusion energy and the like; and furthermore, the realization of secondary coupling triggering can enable the LTD technology to obtain breakthrough development.

Description

technical field [0001] The invention relates to a novel triggering method for a large-scale fast-discharging linear transformer driver (Fast Discharging Linear Transformer Driver, LTD for short) composed of dozens of induction cavities connected in series. Its uniqueness: the gas spark switch in the downstream induction chamber of the multi-stage induction chamber connected in series LTD realizes multiple The stage induction cavity switch is sequentially triggered by the coupled high-amplitude overvoltage to break down and close, which can significantly simplify the requirements for the trigger system of the multi-stage series LTD pulse source. technical background [0002] In recent years, the fast-discharge linear transformer-type drive source (hereinafter referred to as LTD in English) has become a research hotspot in the international pulse power drive source technology, which is different from the traditional way of generating high-voltage and high-current power pulses ...

Claims

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Application Information

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IPC IPC(8): H03K5/02
Inventor 孙凤举刘鹏邱爱慈曾江涛尹佳辉魏浩姜晓峰
Owner NORTHWEST INST OF NUCLEAR TECH
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