新型矿用“ia”本质安全型电源设计  

Design of New“ia”Intrinsically Safe Power Supply for Mine

作　　者：常琳 CHANG Lin(Mining Products Safety Approval and Certification Center Co., Ltd., Beijing 100013, China)

机构地区：[1]安标国家矿用产品安全标志中心有限公司,北京100013

出　　处：《煤矿机电》2021年第2期29-31,37,共4页Colliery Mechanical & Electrical Technology

摘　　要：通过电路计算分析常规“ia”等级本质安全型电源的基本要求和存在的缺陷,提出了利用开关电源作为本质安全电源输出电路中的功率限制设计,对新型电路进行了分析计算和试验验证,新型电路设计不仅符合了本质安全型电路的要求,同时提升了“ia”等级本质安全电源的负载驱动能力,取得了良好效果。Through the circuit calculation and analysis of the basic requirements and defects of the conventional“ia”class intrinsically safe power supply,the power limit design of using a switching power supply as the output circuit of an intrinsically safe power supply was proposed.The new circuit design could not only meet the requirements of intrinsically safe circuit but also improve the load driving ability and performance of“ia”class intrinsically safe power supply,which had achieved good results.

关 键 词：“ia”等级 本质安全型 防爆电源 

分 类 号：TN86[电子电信—信息与通信工程]