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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)。5 I* O& R k4 a. V
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。。。6 g* l+ `6 A$ p
: [! ~5 n/ U5 BOSM/EE DECISION
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Standard:
% l1 X0 g1 w$ l& X' m7 AEN 60065: 2002 + A1 + A11 Sub clause:
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Decision 09/02
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Subject: 3 v4 ]+ P8 `: Q
USB Current* y! }7 Z& K& k" |
Key words:$ u- T% ?9 Z( F7 [% B# [( J
USB) S! O7 d3 d9 [7 C0 n% Y
! y- C8 g+ X- t7 BNormal Operating Conditions Meeting:' p6 l: ~% r' m# d, K* d
OSM/EE - 2009
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* O/ T3 b1 I2 I9 M- GItem No. 8.3/ V# c1 F: w) u( Q8 T! L
8 C' {3 n% w; Z2 L3 pQuestion: ( n% z# e" I2 t) V1 F P
* Y9 j' o' u1 J$ U SIf 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?( X( j+ b- E# ~+ Q: `" m
0 {" n9 e M0 k! x( t0 X7 Y( ?; pDecision:
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" u5 P1 N% @2 wThe USB sockets shall be loaded with the maximum possible output power.
6 X" G S' |* N+ R- P4 oExplanatory notes:
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