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标题: EMC的资料 [打印本页]
作者: mary123456    时间: 2008-9-28 21:08
标题: EMC的资料
U盘、MP3 Player、MP4 Player EMC测试项目# ^9 ^$ N2 X1 x3 Q. ]. |) g

. q3 e6 |: q8 l. @6 o/ r  D1 L7 `该产品应满足的欧洲指令：89/336/EEC Electromagnetic Directive- k! s3 P8 U/ l
参考标准有：  b! `; D1 c7 D" m
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EN 55022:     Limits and methods of measurement of radio disturbance characteristics of information technology equipment
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1 G( `3 \6 n0 ?9 I# u" k9 NEN 55024       Information technology equipment - Immunity characteristics - Limits and methods of measurement
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产品按照标准测试具体项目如下：
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1 y0 Q, a! I1 }0 ]* _一、    EMI干扰部分测试项目  S+ ^( l6 I4 n8 ]' M+ @. Z' }
参照标准 EN55022：1998+A1:2000+A2:2003" |" q- o' t0 E+ A

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! U/ P3 y+ c; Q1.    Terminal voltage:150KHz~30MHz5 E$ J) Y1 i+ o' L/ B
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Frequency  Range (MHz)    Limits ( dBuV)
4 S$ W0 o4 z* {5 e            Quasi-Peak    Average
, p0 x6 g( \# K! j0.150～0.500    66～56    56~461 b, @/ V5 u/ m# j3 \# {
0.500～5.000    56    46
% w$ w. I4 H: |5.000～30.00    60    50
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2. Limit of Radiated Disturbances : 30MHz~1000MHz
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' e& O. ?% I3 K# X* b" FFrequency  (MHz)    Distance  (Meters)    Field Strengths Limits  (dBV/m)
0 `3 {" m! H0 v% u30 ~ 230    3    403 u6 E* m) k9 C/ E, J
230 ~ 1000    3    47
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6 Z! w, I7 L9 t2 o+ l5 P4 p二、    EMS抗干扰部分测试项目
8 D8 M: s- ^, d- R! e参照标准EN55024:1998+A1:2001+A2:2003- ~  s, a( E7 l1 b  B- @

4 p% [( {, }: b0 B1.    Electrostatic discharge:EN61000-4-21 j0 X- W6 k- H
Air discharge:8kv
2 J+ a* N# O% _1 A& ZContact discharge:4kv( i: p1 m8 q$ P5 X
Performance criterion :B
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* K# W$ D7 X2 A  I2.    Radiated Susceptibility：IEC 61000-4-3
4 t1 `; c& s( ]9 \* U1 k( CFrequency range:80MHz~1000MHz; 3v/m;1KHz AM 80%# k5 d1 l& T: c! k
Performance criterion :A
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9 t4 A# l  n3 t3.    Electrical fast transients: EN61000-4-4
+ z0 B8 G9 o! D+ pAC power ports:1KV; 5KHz, }2 T" I. }: C0 ^8 g3 H
Performance criterion: B
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4.    Surge: EN61000-4-5, s' I( A+ f8 T- q: T# t/ i7 F# _
  AC power ports:$ S/ A  {) N. n0 a3 R0 j- l
      0    90    180    270$ v4 _2 E7 v" m, V; K! W' U8 K( _7 }
Phase to phase    ±1kv    ±1kv    ±1kv    ±1kv/ ^* D( }2 q4 u* d
Phase to earth    ±2kv    ±2kv    ±2kv    ±2kv6 z. L9 G6 l- X
        Performance criterion :B
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; F. Y7 l0 a! p$ J; P6 V8 l6 d5.    Injected currents: EN61000-4-64 O. e- m% S6 a# Z1 t! a' j
   AC power ports:150KHz~80MHz;3V;1KHz AM 80%7 H+ f" H7 r3 A3 R! B- k: Q
  Performance criterion :A: U$ O  U: z0 f0 o
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6. Voltage dips and interruptions: EN61000-4-11
9 P  C3 i* z/ b9 i) _Level    U2    td    Phase Angle    N    Pass( s! I8 g2 V" j* c) A& b3 s" I
1    100%    10ms    0/90/180/270    3    C. u9 h% t5 u$ F7 J, I* U
2    30%    1000ms    0/90/180/270    3    C
1 c& d7 [2 s. K3    60%    200ms    0/90/180/270    3    C



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