EMC标准与测试 ppt课件.ppt

EMC-标准与测试*ppt课件讲座内容EMC介绍标准与测试原理典型案例IEC60601-1-2介绍*ppt课件什么是EMC*patibility(EMC,电磁兼容):Abilitytooperatein,andnotoverlycontributeto,,allelectronicequipmentsoperatecorrectlyinoneanother'spresence.icinterference(EMI,电磁骚扰):icenergyemanatingfromonedevicecausingdegradedperformanceinanother.icimmunity,orsusceptibility(EMS,电磁抗扰):icenergy.*ppt课件定义EMC:patibilityThecapabilityofelectricalandelectronicsystems,equipment,icenvironmentwithinadefinedmarginofsafety,atthespecifiedlevelofperformance,icinterference.*ppt课件EMC概述EMC=EMI+EMS传导:通过电源网络、信号线等。辐射:通过空间电磁波。*ppt课件EMC概述EMISSION(EMI):EN55011RFEmission;Radiated(辐射发射)EN55011RFEmission;Conducted(传导发射)EN61000-3-urrentsemissions(谐波)EN61000-3-3voltagefluctuationsandflicker(电压波动和闪烁)IMMUNITY(EMS)EN61000-4-2ElectrostaticDischarge(ESD,静电放电)EN61000-4-3Radiated,radio-frequency,icfield(RS,辐射抗扰)EN61000-4-4Electricalfasttransient/burst(EFT/B,电快速脉冲串)EN61000-4-5Surge(浪涌)EN61000-4-6conducteddisturbances,inducedbyradio-freqencyfields(传导抗扰)EN61000-4-icfield(工频磁场)EN61000-4-11Voltagedips,shortinterruptionsandvoltagevariations(电压跌落、中断和电压变化)*ppt课件医疗电子的EMC产品标准:EN60601-1-2:2001产品标准引用基础标准取代EN60601-1-2:1993过渡期:2004年11月起草中的国标,基本等同采用EN60601-1-2:2001FDA的需求基本等同于EN60601-1-2:2001*ppt课件发射EN55011RFEmission;Radiated(辐射发射)EN55011RFEmission;Conducted(传导发射)*ppt课件产品分类分类依据:使用场地和预期用途。EN55011分类:CLASSA:不直接连接到公用和住宅电网(工业)CLASSB:直接连接到公用和住宅电网(家用)GROUP1:不直接利用电磁能量,如监护仪。GROUP2:直接利用电磁能量,如高频熔炉等。我公司产品:目前:CLASSAGROUP1(超声:CLASSB)趋势:CLASSBGROUP1限值:CLASSB=CLASSA-10dB*ppt课件