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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）。- ~" m' ?3 v y/ r$ ~' K& b
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 DECISION/ ~6 ]7 M& R+ i3 y9 U' X; `
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Standard: ) S. G9 ]) ?8 o* p
EN 60065: 2002 + A1 + A11 Sub clause:
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Decision 09/02
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Subject: - i* M% d3 o; t- j* z$ U
USB Current
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USB
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! o* `/ G5 l9 n: r# X7 j( INormal Operating Conditions Meeting:* `2 @2 z8 ~+ O; {7 ?5 g
OSM/EE - 2009 8 O3 F2 W. g9 X$ @ r( a1 \9 }
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Item No. 8.3
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F2 A6 V: y4 w- @Question: 1 v8 {- S: i6 z7 A7 O% A. Y+ Z/ r
- D0 r$ |" c* B) r) X" LIf 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?* L$ t p" a3 S- c; B9 b: \4 Z9 ], \
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2 v7 {8 T: z, S$ ?! q9 oThe USB sockets shall be loaded with the maximum possible output power.# u; i, X2 r8 y3 O- C
Explanatory notes:
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发表于 2012-4-12 09:23
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