基于LinkSwitch-TN的电弧故障检测装置电源设计  

Design of Power Supply for Arcing Fault Detection Device Based on LinkSwitch-TN

作　　者：高艳艳[1] 张认成[1] 占友雄 

机构地区：[1]华侨大学机电及自动化学院,福建厦门361021

出　　处：《低压电器》2014年第1期40-44,共5页Low Voltage Apparatus

基　　金：福建省高校产学合作科技计划重大项目(2012H6013);福建省自然科学基金项目(2012J01214)

摘　　要：提出了一种基于LinkSwitch-TN的电弧故障检测装置(AFDD)电源的设计方案。结合LinkSwitch-TN功率开关控制器件的内部结构,详细分析了该集成电路的工作原理,完成了基于LNK304的三路输出电源的电路设计,并进行了实际检测装置的供电测试。测试结果表明,电源各项参数符合设计要求,在该电源供电下,AFDD工作稳定,并可有效地检测到故障电弧。A design plan of power supply for arcing fault derection device （AFDD） based on LinkSwitch-TN was proposed. Combined with the illustration of its internal construction, the working process of LinkSwitch-TN power chip was demonstrated in details. Based on LNK304 chip, this work completed the whole design of the power supply circuit with three-way output, realizing a way to minimize AFDD. The test results show that the power circuit works steadily and effectively,its electric parameters meet the prescribed demands of AFDD.

关 键 词：电弧故障检测装置 LinkSwitch-TN 电源电路 LNK304 

分 类 号：TM501.2[电气工程—电器]