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
俞翔 1吴燕清 1梁成文2
作者信息
- 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;重庆大学 资源与安全学院,重庆 400044
- 2. 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
- 折叠
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.
Abstract
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Key words
intrinsically safe power supply/current detection/current-intercepted/current-limited/delay self-recovery引用本文复制引用
基金项目
国家重点研发计划(2018YFC0807805)
出版年
2024
NETL
NSTL
万方数据