截止电流及保护时间可调的本安电路设计  

Design of intrinsically safe circuit with adjustable cut-off current and protection time

作　　者：俞翔 吴燕清 梁成文 YU Xiang;WU Yanqing;LIANG Chengwen(State Key Laboratory of Coal Mine Disaster Dynamics and Control,Chongqing University,Chongqing 400044,China;School of Resources and Safety Engineering,Chongqing University,Chongqing 400044,China;Coalbed Methane Development and Utilization Branch of Shanxi Huayang Group New Energy Co.,Ltd.,Yangquan 045008,China)

机构地区：[1]重庆大学煤矿灾害动力学与控制国家重点实验室,重庆400044 [2]重庆大学资源与安全学院,重庆400044 [3]山西华阳集团新能股份有限公司煤层气开发利用分公司,山西阳泉045008

出　　处：《矿业安全与环保》2024年第2期161-165,共5页Mining Safety & Environmental Protection

基　　金：国家重点研发计划项目(2018YFC0807805)。

摘　　要：针对传统限流型和截流型本安保护电路精度差、效率低,以及参数设置灵活性差的问题,在分析研究本安保护电路模式的基础上,设计了一种基于电流检测芯片、电压比较器和单稳延时电路的截流自恢复型本安保护电路。将新型截流型本安电路与传统型限流保护电路进行性能对比测试,结果表明,设计的本安电路具有反应快、效率高、内阻小等优势。In order to solve the shortcomings of low protection accuracy,low efficiency and poor parameter setting flexibility of traditional current-limited and current-intercepted intrinsically safe protection circuits,on the basis of analyzing the intrinsically safe protection circuit mode,a self-recovery intrinsically safe protection circuit based on current detection chip,voltage comparator and monostable delay circuit was designed.The performance of the new current-intercepted intrinsically safe circuit and the traditional current-limited protection circuit was compared and tested.The results show that the designed intrinsically safe circuit has the advantages of fast response,high efficiency and small internal resistance.

关 键 词：本安电源 电流检测 截流型 限流型 延时自恢复 

分 类 号：TD178[矿业工程—矿山地质测量] X936[环境科学与工程—安全科学]