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07. 布点经验
# _: L* Y8 |) H: s" k# m我是做开关电源的,所以就讲一下开关电源的一点经验:& y/ r, k+ j5 ], B; O6 S n* p3 D; C
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,: x5 r* P& x4 D' P: p' ]4 i
举例如下:
6 C# b8 a( _6 y4 b* N/ [1.Transformer coil- {1 g5 r; [- U+ N& a0 k
2.Transformer core
* d) r# m; r" l% b7 @, y3.电源滤波的电解电容+ m4 `6 S, P& X b8 P* ^
4.X电容6 T8 @- B, b1 d% n- [
5.Y电容. Y2 [# S) T- t* m8 p
6.Optocouple3 P I: w$ P* Q8 u" a' g
7.pcb near 开关管
. Q R; s% l. x5 W9 w8.pcb under transformer
! m/ h T5 k) m6 b9.共模电感7 Z% |* F7 S. z9 t% D( A
10.Input wire/ r3 O( I6 v: ?; `/ `, y3 ~# Z
11.Output cable
6 N% Z6 m( `; S- B2 i12.Enclosure inside near transformer
* n* H" d- v) T0 ~6 C9 q/ q' [13.Enclosure outside near transformer
" e' ]. v& k; j' U9 O14.Enclosure inside between blades |
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