Research on electrical pulse of 20-kV/30-Hz GaAs photoconductive switches |
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| Authors: | Hong Liu Jingli Wang Lin Zhang Binjie Xin Xinmei Wang and Wei Shi |
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| Institution: | 1,21Faculty of Automation and Information Engineering,Xi’an University of Technology,Xi’an 710048,China2State Key Laboratory of Electrical Insulation and Power Equipment,Xi’an Jiaotong University,Xi’an 710049,China |
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| Abstract: | Photoconductive semiconductor switches (PCSSs) are widely used in high power ultra-wideband source applications and precise synchronization control due to their high power low-jitter high-repetition-frequency. In this letter, a 14-mm gap semi-insulating GaAs PCSS biased under 20 kV is triggered by a 1064-nm laser with a repetition frequency of 30 Hz. Although the trigger condition is greater than the threshold of the lock-on effect, the high gain mode is not observed. The results indicate that the high gain mode of the PCSS is quenched by decreasing the remnant voltage of pulsed energy storage capacitor. |
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