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pcb 抄板 pcb 设计基本步骤(Basic steps of PCB board PCB design)
, C# c' c" A& n+ e iThe first step of PCB design: the initial work of PCB board circuit
9 O, z; D* g( e5 @0 W* g# w$ W9 pboard8 I( {0 j; s$ I- \, y+ M
1. Use schematic design tools to draw schematic diagram, and
& q% T9 e3 r3 r7 I. B7 \generate the corresponding network table. Of course, some special
G3 M( w' {, ]. d( W8 x, n; ]circumstances, such as the circuit board is relatively simple, have a @8 W+ O. S- t/ M- C
design may not principle under the circumstance of network graph table,
& `' k$ N1 C" W' b: a; J+ Jdirectly into the PCB system design, in the design of PCB system, can be
2 c, y! A; f( p9 B# v8 t. s5 Y7 Zdirectly used parts package, artificially generated network table.7 n0 Z& Z4 f8 i: t
2, manually change the network table, some components on the fixed: s% ~$ h: W- B: K
foot, such as the principle of no pads on the definition of the network* e- L3 i- G- k
to communicate with it, without any physical connection can be defined
" r/ B D4 y e7 A5 Q+ A1 Gto the ground or protective ground. The pin names of some schematics and
K. y$ c$ ^, Vinconsistent pin names in the PCB packaging library are changed into the% e y: e" H, Q: P
same as those in the PCB packaging library, especially the two, triode
; X9 u; c9 n# E! M' }) G- O' o. band so on.
8 s1 ?/ ]$ l% G0 C' W* b. L6 k6 ^PCB design steps two: draw their own definition of non-standard! m. ]9 o8 ]- Y a
components of the packaging Library
' V3 J3 e& @ N5 fIt is recommended to put all of the devices you have painted into
$ j" C" `. b+ oone of your own PCB library specific design files. - p7 a* i" n- H! V* h( E
2 f* H/ a) \5 R) O# ?7 z0 f0 T7 W, Q7 ?
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发表于 2020-2-17 15:32
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支持！
反对！
