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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)。
# E( n9 P( b x' s8 r) l/ f4 hUSB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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& R- ]% v. u4 X0 OOSM/EE DECISION# `6 Z. V0 y/ `) q
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Standard: * O* x3 T/ B# d+ w+ ?: g5 l2 q
EN 60065: 2002 + A1 + A11 Sub clause: ! Z9 v6 a5 |6 j7 w$ c
4.2.6 Sheet No.:
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Subject: % h2 o& ?( J; Y# W U( p6 W( f$ b
USB Current
3 w' s4 a4 I! S( |$ Q Key words:) J+ r% u2 E: m( F0 o
USB
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Normal Operating Conditions Meeting:
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Item No. 8.35 f) H$ \: C7 @; t3 M- f, ]
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Question: ( E$ Y5 r# W* e6 i2 z8 r2 |7 ]
: q. W3 j% T8 zIf 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?* e2 v% s' f; M9 {5 _4 `5 }
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Decision:
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The USB sockets shall be loaded with the maximum possible output power.
( R* \( G# {! A' X7 {7 `; }Explanatory notes: 5 q I7 X; I1 r7 ^
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