计算物理 ›› 2015, Vol. 32 ›› Issue (6): 729-734.

• 论文 • 上一篇    下一篇

晶闸管的擎住电流与维持电流

谭巍, 李建清   

  1. 电子科技大学物理电子学院, 四川 成都 640054
  • 收稿日期:2014-11-05 修回日期:2015-04-09 出版日期:2015-11-25 发布日期:2015-11-25
  • 作者简介:谭巍(1990-),男,硕士,从事半导体器件TCAD研究,E-mail:tanuestc@163.com;李建清(1975-),男,博士,教授,博士生导师.主要从事半导体器件TCAD研究,及微波电子学、微波管CAD技术的基础研究

Thyristor Latching Current and Maintain Current

TAN Wei, LI Jianqing   

  1. School of Physical Electronics, University of Electronic Science and technology of China, Chengdu 610054, China
  • Received:2014-11-05 Revised:2015-04-09 Online:2015-11-25 Published:2015-11-25

摘要: 晶闸管的擎住电流和维持电流对于晶闸管的工作有重要的影响.利用晶闸管的导通特性,从载流子的角度推导出擎住电流的计算公式;通过对NPN晶体管电流增益的分析,得到维持电流的表达式.将计算结果与Sentaurus TCAD软件仿真结果对比,发现两者符合较好,验证了计算公式的正确性.

关键词: 晶闸管, 擎住电流, 维持电流, 电流增益

Abstract: Thyristor latching current and maintaining current have important effects on its working state. With thyristor conduction characteristics latching current is derived from carrier density; Based on current gain of NPN transistor, maintaining current is obtained. Compared with simulation results of Sentaurus TCAD software, calculated results have good agreement. It shows correctness of the formula.

Key words: thyristor, latching current, maintain current, current gain

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