Design And Implementation Of High-voltage Laser Controlled Pulsed Thyristor

Applications such as high-power microwaves,accelerators,and biomedical applications require high repetition rate,long life,high reliability,and compactness for pulsed power systems.Due to the repetition rate,lifetime,and reliability of solid-state devices(switches,energy storage,etc.)Saturation and other advantages,and the power capacity is also higher and higher,so solid-state pulse power technology based on high-power solid-state electronic devices has become an important direction of pulse power technology development.In the pulse power system,the switch is the most critical device,its performance directly determines the output performance of the system,so it has high power capacity,high repetition rate,long life,and stable and reliable solid-state switch becomes the research of solid-state pulse power technology.Focus and difficulty.This paper is aimed at the above requirements,combined with the advantages of high voltage level of thyristor,large flow capacity and high reliability,as well as the advantages of small volume of PCSS,good repetition frequency performance,fast response speed,small trigger jitter and photoelectrnc isolation.And a new type of high-voltage laser controlled pulsed thyristor is realized.Based on the simulation of semiconductor devices,combined with the simulation calculations of optics,electromagnetics and circuits,this paper uses multiple software tools in different fields for collaborative design,studies the relationship between multiple physical parameters,and obtains the optimal design of new devices.The parameter realizes a high-voltage laser controlled pulse thyristor based on laser diode driving and flexible fiber coupling.The main contents of the paper are:1.Combined with thyristor and PCSS,a new multi-gate,multi-cell high-voltage laser controlled pulse thyristor structure is proposed.This structure reduces the concentration effect of current through multiple gates and multiple cells,and improves device opening.Speed,thus enabling the device to have high power,high di/dt operating conditions.2.Multi-software collaborative design,application of semiconductor simulation software,electromagnetic field analysis and calculation software,circuit design simulation software,optical design software,virtual instrument,etc.,and structural calculation,parameter simulation,process design,etc.,and writing data processing procedures,high-voltage laser The test experimental data of the controlled pulse thyristor is compared with the simulation data,and finally the design and structure optimization of the high-voltage laser controlled pulsed thyristor is completed,and the high-voltage laser controlled pulsed thyristor device is realized.3.Based on laser diode stacking,RF high current driving,laser energy flexible transmission and micro-nano fiber splitting uniform scheme,a small-volume,economical and flexible high-voltage laser controlled pulse thyristor trigger control system is designed and implemented.