High-power discharge switching device based on light triggered thyristor

Abstract

The invention discloses a high-power discharge switching device based on a light triggered thyristor (LTT), which comprises an LTT unit, a static pressure equalizing resistance unit, a dynamic pressure equalizing RC return circuit unit and a switch pressure-mounting assembly unit, wherein the LTT comprises more than one light LTT elements which are connected in series; the static pressure equalizing resistance unit and the dynamic equalizing RC return circuit unit are connected with the LTT unit in parallel; the dynamic equalizing RC return circuit unit comprises an absorption capacitor and adynamic absorption resistor which are connected in series; and the switch pressure-mounting assembly has effect of fixing and connecting the LTT unit, the static pressure equalizing resistance unit and the dynamic pressure equalizing RC return circuit unit. The high-power discharge switching device of the invention overcomes the defects of slow control response speed, great trigger jitter, easy burnout of a contact under heavy current, poor reliability, poor safety and the like of the traditional mechanical switch.

Description

technical field [0001] The invention relates to a high-power discharge switch device, in particular to a high-power discharge switch device based on a light-triggered thyristor, which is applied in the field of high-power pulse switch applications such as high-power pulse power supply. Background technique [0002] With the development of science and technology, pulse power technology and pulse current test technology put forward higher and higher requirements for discharge switches, such as high reliability, wide working range, small switching delay and jitter, and long service life Wait. [0003] Traditional mechanical switches are difficult to use as high-power discharge switches due to slow control response speed, large trigger jitter, easy contact burnout under high current, and poor reliability and safety. The thyristor is an electronic switch that can be triggered by control, and has the advantages of fast response, low loss, and high reliability. Therefore, the hig...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a high-power discharge switch device based on light-triggered thyristors, which can well overcome the slow control response speed of existing traditional mechanical switches, large trigger jitter, easy burning of contacts under high current, and low reliability. and poor security, it provides a simple structure, high reliability, good electrical performance, maintenance-free high-power discharge switching device based on light-triggered thyristor elements

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