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07. 布点经验( S2 i `: i3 s
我是做开关电源的,所以就讲一下开关电源的一点经验:
# S. D" [! L- Z5 G* I, J) }9 A布点总的原则是:觉得那里发热严重,就布那里,还有一些关键元件等,& W9 b" |" K- \) U( {" L8 M' f
举例如下:' l, _! q; D v# s
1.Transformer coil
# l7 U7 g; q# \; J# j+ } ~2 i6 h! i2.Transformer core% U$ t1 J$ t3 h9 l$ v
3.电源滤波的电解电容
) [! \6 W% {$ z4 j9 Z" E0 |4.X电容) f* ^% i/ n& Q) ]
5.Y电容
: I2 n V, n7 W3 v1 k6.Optocouple
+ E; Z$ s/ J" O7.pcb near 开关管6 s6 |+ Z) h; [0 M, Y
8.pcb under transformer$ r( m2 l" E' F& r. E$ m
9.共模电感
! _* J% R! s! L8 g5 O( s10.Input wire
4 e3 l4 f1 u* p, J. Q) I& M: j11.Output cable
2 [( i ?- U) g6 ?4 Q ?) h12.Enclosure inside near transformer
5 d# \% j6 j% j; {1 f$ n13.Enclosure outside near transformer/ u) K/ k' U$ O$ F; U& \
14.Enclosure inside between blades |
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