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Research on Pulsed Power Switch RSD Based on Buffer Layers

Author: LiuBaoSheng
Tutor: YuYueHui
School: Huazhong University of Science and Technology
Course: Microelectronics and Solid State Electronics
Keywords: Pulsed power technology RSD The buffer layer Rogowski coil
CLC: TN786
Type: Master's thesis
Year: 2006
Downloads: 83
Quote: 0
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Abstract


In the field of modern pulsed power technology , high average power repetition rate pulsed power technology development increasingly accelerated pulse power system switching elements , which put forward higher requirements . Pulse Power Switch RSD (Reversely Switched Dynistor) has a forward blocking voltage , flow ability , high di / dt turn-on time is short , the characteristics of long life and high repetition rate , pulse power system has broad application prospects . From a structural point of view , the the RSD and general thyristor difference is that RSD anode structure for the P and N regions alternating . RSD is a thin plasma layer N base region near the P base side trigger controlled plasma layer is used for short-term reverse the polarity of the applied voltage on the device to create . RSD conduction conditions is the amount of charge precharge the precharge must be greater than the critical amount of charge Q RCR . The buffer layer structure can be made thinner wafer thickness to achieve the same blocking voltage , thereby improving the device efficiency , the on-state and dynamic loss also decreases . This structure must be combined with a transparent anode structure . The transparent anode is actually from which electrons can penetrate the thin bleed doping concentration and a lower anode . In the process , you can use the grinding angle and the minority carrier lifetime control technology to improve device characteristics . Reduce the carrier lifetime doped gold, platinum, electron irradiation , light ions irradiation method . Light ion irradiation of semiconductor devices local control life . Pulse current test commonly used measurement of the shunt , shunt can only measure the the 50KA pulse current . Rogowski coil with high precision, frequency response characteristics, and no other significant advantages of a direct link between the circuit under test and the measuring circuit , this study Rogowski coil measurement , and get good results .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Pulse,pulse circuits > Pulse transform,pulse conversion circuit
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