pcb抄板pcb设计基本步骤（Basic+steps+of+PCB+board+PCB+design）

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pcb 抄板 pcb 设计基本步骤(Basic steps of PCB board PCB design)
The first step of PCB design: the initial work of PCB board circuit
) g2 t; R1 v1 S% }7 E- f) \. Rboard
1. Use schematic design tools to draw schematic diagram, and
' X& @* ?+ t: \3 Agenerate the corresponding network table. Of course, some special
2 m- U4 f4 o9 ^6 vcircumstances, such as the circuit board is relatively simple, have a
design may not principle under the circumstance of network graph table,
directly into the PCB system design, in the design of PCB system, can be
directly used parts package, artificially generated network table.
2, manually change the network table, some components on the fixed
foot, such as the principle of no pads on the definition of the network
to communicate with it, without any physical connection can be defined
8 \- S8 K" ^% D! y( @. S" h1 q* ^. [to the ground or protective ground. The pin names of some schematics and
/ ~: F* `& D& K, Y7 j1 g" Rinconsistent pin names in the PCB packaging library are changed into the
! @" N' ~$ _5 n" {. A6 nsame as those in the PCB packaging library, especially the two, triode
) @% B) u. b. f/ fand so on.
PCB design steps two: draw their own definition of non-standard
0 X3 b' O+ l% w1 ]8 Wcomponents of the packaging Library
It is recommended to put all of the devices you have painted into
. V$ b. j6 {8 d# e3 hone of your own PCB library specific design files.  
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pcb抄板pcb设计基本步骤

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