Integrated weak light triggering gas switch circuit based on transformer and working method thereof

Abstract

The invention discloses an integrated weak light triggering gas switch circuit based on a transformer, and a working method thereof. The circuit comprises a gas switch, a transformer, a photoconductive switch, a divider resistor and a trigger capacitor, the high-voltage electrode of the gas switch is connected with the divider resistor, the ground electrode of the gas switch is grounded, and the trigger electrode of the gas switch is connected with the secondary side of the transformer; one terminal of the primary side of the transformer is connected with one end of the photoconductive switch,and the other end of the photoconductive switch is connected with the divider resistor and the trigger capacitor. And the other terminal of the primary side of the transformer is connected with the trigger capacitor and grounded. According to the invention, micro-focus low-energy laser triggering, triggering control and high voltage can be adopted to realize photoelectric isolation; optical fibers are used for transmitting trigger light energy, complex collimation, light alignment and other operations are omitted, and the trigger moment is easy to control. The trigger loop directly obtains the voltage and the energy required by the trigger system from the main loop or the gas switch electric field, and a charging power supply does not need to be additionally arranged.

Description

technical field [0001] The invention relates to the technical field of switches and their triggers in pulse power technology, in particular to a transformer-based integrated weak-light trigger gas switch circuit and its working method. Background technique [0002] The switch is one of the key components of the pulse power device, and its performance has an important influence on the performance of the pulse power device. Gas switch is the most commonly used switch in pulse power devices, and its common trigger methods are electric pulse trigger and laser direct trigger. The advantage of electric pulse triggering is that the circuit is simple and the cost is low. The disadvantage is that the trigger pulse generator is large in size, the volume of the whole system and the complexity of control are significantly increased when multi-channel gas switches are triggered, and the synchronization of multiple outputs is relatively poor. The advantages of direct laser triggering are...

AI Technical Summary

Problems solved by technology

The advantage of electric pulse triggering is that the circuit is simple and the cost is low. The disadvantage is that the trigger pulse generator is large in size, the volume of the whole system and the complexity of control are significantly increased when multi-channel gas switches are triggered, and the synchronization of multiple outputs is relatively poor. The advantages of direct laser triggering are good switch synchronization, photoelectric isolation between trigger control and high voltage, etc., but its disadvantages are that it requires a large amount of triggering light energy, so the volume of the triggering light source is large, and collimation and light alignment are required before the test. adjust

[0003] The existing technology of gas switches triggered by photoconductive switches has the advantages of photoelectric isolation, good synchronization, and can be triggered by high-power laser diodes, but its output has a low working voltage for triggering gas switches, so the output trigger pulse amplitude Lower values ​​lead to less reliable triggering of the gas switch

Images