Non-linear photoconductive semiconductor switch testing device and method

Abstract

The invention relates to the field of non-linear photoconductive semiconductor switch parameter testing, in particular to a non-linear photoconductive semiconductor switch testing device and method. The non-linear photoconductive semiconductor switch testing device and method are provided for solving the problems existing in the prior art. Through cooperation of a delay synchronous machine, a laser, an optical fiber, a photoelectric probe, a first high-voltage probe and the like, the difficulty of conducting accurate testing on a non-linear photoconductive semiconductor switch on the high-voltage, high-current and ultrafast-pulse conditions is overcome, and accurate, convenient and reliable testing of the parameters such as the conduction delay time, jittering, the conduction resistance, the withstand voltage and the service life of the non-linear photoconductive semiconductor switch is realized. The device comprises the delay synchronous machine, the laser, the optical fiber, the photoelectric probe, high-voltage probes, an oscilloscope, a high-voltage pulse power source, Blumlein transmission wires, a matching load, an organic glass box, transformer insulating oil and limiting fixtures. The non-linear photoconductive semiconductor switch to be tested, the Blumlein transmission wires and the matching load are placed in the organic glass box and are immersed in the transformer insulating oil.

Description

technical field [0001] The invention relates to the field of testing parameters of a nonlinear photoconductive switch, in particular to a testing device and method for a nonlinear photoconductive switch. Background technique [0002] Photoconductive Semiconductor Switches (PCSS) are a new type of solid state switches that use pulsed lasers to excite photoconductive semiconductors to achieve impedance state switching. Since Jayaraman and Lee of the University of Maryland first discovered in 1972 that the response time of semiconductor materials to picosecond light pulses can be in the range of picoseconds, the research on the characteristics of photoconductive switches has attracted great attention of scientists from all over the world. Because the photoconductive switch has the advantages of fast conduction speed, high synchronization accuracy, and small trigger jitter, it has good application prospects in many fields such as medical dielectric wall accelerators, high-power ...

AI Technical Summary

Problems solved by technology

[0004] At present, the production process of domestic nonlinear photoconductive switches is not yet mature. On the one hand, the switch is expensive, on the other hand, the quality of the switch is uneven, and there is a lack of a unified detection device. An accurate, convenient and reliable detection device is urgently needed. , to control the quality of the nonlinear photoconductive switch

Images