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请看附件EN60065的OSM决议（附件是WORD版本，内容跟下面的一样）。6 \! G% D9 `( e+ c1 e3 @/ q* h
USB端口如果没有标明5V0.5A的话，在正常和异常测试的时候都要带最大载来测试，这样，正常测试时候的温升很容易超。大家都懂的。。。
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OSM/EE DECISION7 b8 A. @' R+ z1 V! a
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Standard:
- S% o% b0 ^: B3 \EN 60065: 2002 + A1 + A11 Sub clause:
" ~0 S! o- p* M$ S4.2.6 Sheet No.:
, T4 S! f4 u3 p% ^* Z( @; rDecision 09/02
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, z$ y0 N* }3 VSubject:
2 J: r: T3 O4 T6 I. LUSB Current
* G! x$ ^) g: ^6 y0 r Key words:6 c3 [9 R' H3 E6 z0 b
USB7 R, d0 i& g- ?$ k/ v" I+ _+ T
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Normal Operating Conditions Meeting:' U6 z* E: \3 J
OSM/EE - 2009 * K0 c% P% x+ o: H) ^7 j
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Item No. 8.33 b' @: Q! g; B, N
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Question: 5 c" @$ { D/ _- y F/ M, d
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If a product falling in the scope of EN 60065 is fitted with USB sockets, should a current be drawn from these sockets when performing the normal operating conditions heating test? If so, what current loading should be used?, B5 f* D7 R/ a( z3 G; o
3 s& |3 b8 ~; Y3 zDecision:- j3 }3 | b3 L1 l+ A
@/ B* ^4 l% i; P, T4 h* r/ iThe USB sockets shall be loaded with the maximum possible output power.
9 K" N& J3 P, XExplanatory notes: 7 y% Q L* v3 [
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发表于 2012-4-12 09:23
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