温度对雪崩晶体管导通特性及其马克思电路输出脉冲的影响

IF 1.3 4区 物理与天体物理 Q3 PHYSICS, FLUIDS & PLASMAS
Han Chen;Lin Liang;Haoyang Fei
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引用次数: 0

摘要

雪崩双极结晶体管(abjt)可以在纳秒级或亚纳秒级时间尺度上进行。基于abjt的Marx bank电路可以产生高幅值、快速上升沿和高重复频率的脉冲。为了满足在不同工作温度和频率下对微波脉冲发生器输出脉冲稳定性的要求,研究了温度对微波脉冲发生器及其微波脉冲发生器导通特性的影响。通过分析abjt的导通特性原理,实验研究了不同温度和工作条件下abjt导通特性和MBCs输出脉冲的变化规律。结果表明,温度升高会影响载波雪崩倍增过程,导致基极触发abjt的导通速度变慢,电压降减小,而电压斜坡触发下过电压幅值和持续时间增加。温度对单个ABJT导通特性的影响在MBC中积累。当温度从$25~^{\circ}$ C升高到$125~^{\circ}$ C时,十级MBC输出脉冲幅值从976 V减小到540 V,上升时间从0.28 ns增加到1.44 ns,半最大宽从1.57 ns增加到2.95 ns。理论分析与实验观察结果一致,验证了理论解释的有效性,为高重复频率或高温条件下MBCs的设计和可靠性提高提供了参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Impact of Temperature on Turn-On Characteristics of Avalanche Transistors and Output Pulses of Their Marx Circuits
Avalanche bipolar junction transistors (ABJTs) can be conducted in the time scale of nanosecond-level or subnanosecond level. Marx bank circuits (MBCs) based on ABJTs can generate pulses with high amplitude, fast rising edge, and high repetition frequency. In order to meet the demand for the stability of the output pulses of MBCs under different operating temperatures and frequencies, the impact of temperature on the turn-on characteristics of ABJTs and their MBC is investigated. Through analyzing the principles of the turn-on characteristics of ABJTs, the variations in the turn-on characteristics of ABJTs and the output pulses of MBCs under different temperatures and operating conditions are experimentally investigated. The results indicate that an increase in temperature affects the carrier avalanche multiplication process, leading to slower turn-on speeds and reduced voltage drop in base-triggered ABJTs, while the overvoltage amplitude and duration increase under voltage ramp triggering. The impact of temperature on the turn-on characteristics of a single ABJT accumulates in the MBC. As the temperature rises from $25~^{\circ }$ C to $125~^{\circ }$ C, the output pulse amplitude of the ten-stage MBC decreases from 976 to 540 V, the rise time increases from 0.28 to 1.44 ns, and the full-width at half-maximum (FWHM) increases from 1.57 to 2.95 ns. The theoretical analysis is consistent with the experimental observations, validating the effectiveness of the theoretical explanation and providing a reference for the design and reliability improvement of MBCs under high repetition frequency or high temperatures.
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来源期刊
IEEE Transactions on Plasma Science
IEEE Transactions on Plasma Science 物理-物理:流体与等离子体
CiteScore
3.00
自引率
20.00%
发文量
538
审稿时长
3.8 months
期刊介绍: The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.
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