高速光耦瞬态共模抑制性能的电路仿真方法Circuit simulation method for testing common mode transient immunity of high-speed optocoupler
高会壮,王香芬,张芮,黄姣英
摘要(Abstract):
为了解决高速光电耦合器的瞬态共模抑制不能准确测试的问题,研究了光耦的耦合机理和瞬态共模抑制的测试原理。利用仿真技术对电路功能及瞬态共模抑制评估电路的耦合参数(包括耦合电阻与耦合电容)进行仿真和验证,分析了电路中的不同器件参数对仿真结果的影响,并且对得到的输出波形的数据进行读取与分析。以HCPL-2611为例,使用大电阻和小电容并联的模型模拟实际中的耦合情况,通过仿真分析确定了耦合电容的大小,验证了高速光耦瞬态共模抑制仿真方法的有效性。
关键词(KeyWords): 瞬态共模抑制;PSpice仿真;高压脉冲;耦合参数;耦合电阻;耦合电容
基金项目(Foundation): 国家自然科学基金(61376042)~~
作者(Author): 高会壮,王香芬,张芮,黄姣英
DOI: 10.16652/j.issn.1004-373x.2018.04.016
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