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07. 布点经验# L& S/ J' N# y; W$ A0 v% r' e. Y
我是做开关电源的,所以就讲一下开关电源的一点经验:2 W" a: h+ d, |' t
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,3 w0 g8 O# Q" F8 ?% B
举例如下:1 N% V7 ]- l7 U( Z
1.Transformer coil
! ~- K6 @4 P* v6 o9 \- q8 K2.Transformer core; @; U9 E* S6 h$ i6 c
3.电源滤波的电解电容 b$ k. I. G, v, ?6 ?3 M
4.X电容
/ \# G4 L/ l) W- Z7 }5.Y电容
6 d2 L% @/ V" b, t3 ^6.Optocouple1 c4 v5 O; R* Z M" A
7.pcb near 开关管
2 O; `8 p3 {( q2 l, f8.pcb under transformer
" K, m9 Q* s% e& `9.共模电感
, q% n5 X( V6 }% {1 [! u10.Input wire
# O3 h+ I$ a ?4 w; z; A5 E11.Output cable5 {( y% N7 K9 u3 {
12.Enclosure inside near transformer' v7 _ E/ G2 o- Q9 n8 j1 a$ m
13.Enclosure outside near transformer% q. j$ E, g4 N' Y9 u
14.Enclosure inside between blades |
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