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Output protection circuit of Marx trigger of double-electrode gas switch

A gas switch and output protection technology, which is applied in the direction of circuits, electrical components, phonon exciters, etc., can solve the problems of low reliability, low probability of malfunction, etc., so as to avoid the influence of work stability and reduce Effect of electromagnetic interference intensity and reduction of output energy

Active Publication Date: 2013-01-02
西安西交瑞力电气研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the problems of possible misoperation and low reliability of the MARX trigger in the working process of the two-electrode gas switch in the prior art, the purpose of the present invention is to provide an output protection circuit for the Marx trigger of the two-electrode gas switch, The output protection circuit can effectively isolate the pre-ionization pulse from the Marx trigger, ensuring the low probability of malfunction and high working reliability of the MARX trigger

Method used

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  • Output protection circuit of Marx trigger of double-electrode gas switch
  • Output protection circuit of Marx trigger of double-electrode gas switch
  • Output protection circuit of Marx trigger of double-electrode gas switch

Examples

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Embodiment 1

[0026] Such as image 3 , Figure 4 Shown is an application circuit of a Marx trigger output protection circuit with a two-electrode gas switch of the present invention. Specifically, the isolation gap S, the DC blocking capacitor C2, and the resonant inductor L2 are connected in series at the output end of the Marx trigger, and connected to the cathode end of the two-electrode gas switch; a drain is connected in series between the common node of the DC blocking capacitor and the resonance inductor and the ground Discharge resistor R1, the discharge resistor R1 must be able to withstand the output pulse voltage of the MARX flip-flop without any failure; the Marx flip-flop forms its own loop through the coupling capacitor C3. The coupling capacitor C3 is connected across the anode of the gas switch and the ground terminal of the MARX trigger. Under the premise of ensuring the insulation distance, the connection of the coupling capacitor C3 should be as tight as possible. The...

Embodiment 2

[0031] Such as Figure 5 , Image 6 Shown is an application circuit diagram of a Marx trigger output protection circuit with a two-electrode gas switch of the present invention. The specific circuit is: connect the DC blocking capacitor, isolation gap, resonant inductor and the cathode end of the two-electrode gas switch in series at the output end of the Marx trigger; the common node between the DC blocking capacitor and the isolation gap is connected to the common ground terminal through the discharge resistor; The Marx flip-flop forms a loop by itself through the coupling capacitor C3. The MARX flip-flop still adopts the structure used in Application Example 1, but only the DC blocking capacitor is placed inside the Marx flip-flop, and the isolation gap and the bleed resistor are both external. The advantages are that the Marx flip-flop is simple in design, low in cost, and easy to isolate Parameter adjustment and cooperation between gap and Marx trigger.

[0032] The DC...

Embodiment 3

[0036] The circuit schematic diagram of this embodiment is the same as that of Embodiment 1, but the parameters of the main energy storage capacitor of the Marx trigger are reduced from 20kV, 10nf to 20kV, 5nf, the parameters of the DC blocking capacitor are selected as 1000pf, and the withstand voltage is 200kV.

[0037] Due to the reduction of the main energy storage capacitor of the Marx trigger, its output energy is reduced, which reduces the amplitude of electromagnetic interference to other equipment in the energy system; after increasing the DC blocking capacitor, it absorbs more energy when the Marx trigger outputs, thereby reducing the The magnitude of the disturbance to the trigger circuit.

[0038] In this embodiment, the resonant inductance is correspondingly reduced to a high-voltage wire below 0.4 m, and the selection range of other output protection circuit parameters is the same as that in Embodiment 1.

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Abstract

The invention relates to a xenon lamp pumping primary power supply of a high-power solid laser and discloses an output protection circuit of a Marx trigger of a double-electrode gas switch for use in the xenon lamp pumping primary power supply of the high-power solid laser. The output protection circuit comprises a leak resistor, a stopping condenser and a discharge gap, wherein the stopping condenser and the discharge gap are serially connected between the output end of the Marx trigger and the cathode terminal of the double-electrode gas switch; and one end of the leak resistor is connectedwith the common node of the stopping condenser and the discharge gap, and the other end of the leak resistor is connected with the other end of the stopping condenser or directly grounded. The outputprotection circuit mainly solves the problem of isolation between a pulse voltage of a xenon lamp preionization circuit and the Marx trigger for triggering the double-electrode gas switch of a main discharge circuit when a high-power xenon flash lamp is driven, ensures the mutual normal cooperation between the triggering of the double-electrode gas switch of the main discharge circuit of the high-power xenon flash lamp and the preionization of the xenon lamp, and makes the operation of the xenon flash lamp reliable.

Description

technical field [0001] The invention relates to a primary power supply for high-power solid-state laser xenon lamp pumping, in particular to an output protection circuit for a Marx trigger of a two-electrode gas switch used in the primary power supply for high-power solid-state laser xenon lamp pumping. Background technique [0002] In the primary power system pumped by a strong laser xenon lamp, the switch is responsible for transferring energy from the energy storage system to the high-power pulsed xenon lamp load, and is a key component of the entire primary power system. At present, the widely used switch is the ignition tube, but with the development of the strong laser primary power system to larger energy storage, the flow capacity of the ignition tube can no longer meet the demand, and the probability of self-breakdown is high, which is no longer suitable for more The primary power supply system with large energy storage requires high reliability of the switch. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/0977
Inventor 杨兰均杜修明陈立刘鹏童金禄袁均祥
Owner 西安西交瑞力电气研究院有限公司
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