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07. 布点经验1 Q9 t/ x/ T: _ U
我是做开关电源的,所以就讲一下开关电源的一点经验:/ X- m! A1 E, q4 D. G, c; x, H
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,
6 D% f8 W0 g- }, o) P举例如下:
) D, @/ ^5 ~& ?: n: N1.Transformer coil
- A3 H" L, o2 D4 w& H5 g2.Transformer core
% i' j3 D% G* ^: d3.电源滤波的电解电容$ e& F e5 h3 n1 h. q* p
4.X电容
9 k: Q: @7 B" Y, @5.Y电容
0 r5 J5 p' T) e& x& ]6.Optocouple6 ?" J' m* C) ?9 P
7.pcb near 开关管
( |$ E2 |4 J+ L8 l2 R8.pcb under transformer
! f- M P3 j' i! J5 K/ }( ]9.共模电感
) R) W J6 b: I6 S8 c10.Input wire
) ]! K' [. w* s" I! I @& [11.Output cable
* U2 W2 L1 \, `3 C1 ^8 }12.Enclosure inside near transformer+ D, h6 i$ f# D5 {$ F7 \
13.Enclosure outside near transformer" V0 O9 L- q" Q8 c3 a, S9 D% p
14.Enclosure inside between blades |
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