所需E币: 3
时间: 2019-12-24 17:55
大小: 153.26KB
摘要:本应用笔记介绍78M6618功率和能量测量IC设计时的安全防范。涵盖的主题包括隔离测试设备,78M6618评估(EV)板,在电路仿真器,通信接口。78M6618SafetyPrecautionsSimplifyingSystemIntegrationAPPLICATIONNOTEAN_6618_028April2010IntroductionWhenusingashuntasacurrentsensorwiththe78M6618,V3P3mustbedirectlyconnectedtotheNEUTRALwiringforpreciseenergymeasurementaccuracy.Thistopologypresentstwopotentialsafetyissues:The78M6618groundpinisnormally-3.3Vbelowearthground.IntheeventofaLINEwiringreversal,the78M6618groundpinbecomes120/240VAC.Therefore,anyexternal……