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pcb 抄板 pcb 设计基本步骤(Basic steps of PCB board PCB design)9 j- ~2 ^0 `5 @7 h9 k9 [$ p! I, D
The first step of PCB design: the initial work of PCB board circuit1 N! i$ d9 V2 U# c" g
board5 f- `! q1 Z& p1 m5 z# F( I
1. Use schematic design tools to draw schematic diagram, and
$ u7 [7 u% n: u% K6 M3 ~, Lgenerate the corresponding network table. Of course, some special
5 m+ O0 T# Z# E4 u" c* |/ ~circumstances, such as the circuit board is relatively simple, have a% @% D1 {. _2 J+ S$ W( j
design may not principle under the circumstance of network graph table,
. V7 O- t2 }1 c1 v" Edirectly into the PCB system design, in the design of PCB system, can be3 t- P* S( y: h
directly used parts package, artificially generated network table.; T- s* v6 Q/ m4 f" h
2, manually change the network table, some components on the fixed! |. H" G+ Q, f
foot, such as the principle of no pads on the definition of the network4 |( y: ?% n0 X# D! [* |1 z
to communicate with it, without any physical connection can be defined
/ V" v0 m+ g# h" j( y2 Q- cto the ground or protective ground. The pin names of some schematics and
! G$ a2 P- E: j+ Q) x! Ninconsistent pin names in the PCB packaging library are changed into the
. v) I& g5 k- Ysame as those in the PCB packaging library, especially the two, triode
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PCB design steps two: draw their own definition of non-standard
& ]' d f) j) Z: X* D; d) gcomponents of the packaging Library6 ]- \: N K5 `' D2 O
It is recommended to put all of the devices you have painted into' f4 h0 G& f. k: P! T
one of your own PCB library specific design files.
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