一、介紹Linux PCB
Linux PCB是一款專業的印刷電路板(PCB)設計軟件，它是Linux平台上的開源軟件。該軟件通過創建PCB圖紙、管理元件、路由器布線等功能完成PCB設計。由於各組成部分基於C++編寫, 因此，開發人員可以很容易地修改代碼或添加新功能來滿足用戶的需求。
二、PCB設計基礎
PCB設計包括以下主要步驟：原理圖設計、PCB布局設計、PCB繪製和PCB製造。在使用Linux PCB時，首先需要完成原理圖輸入，接下來進行底板設計和周期布局。此階段，你需要在PCB上布置所有的元器件、引腳和信號線，然後用引腳網絡繪製電路圖。隨後，便是運用內置的自動線路布局工具將電線布好，並進行割線和劃分。最後，導出PCB圖紙並出色，之後迭代修正。
三、使用Linux PCB設計PCB
下面的示例展示了如何使用Linux PCB設計由兩個晶體管和一個LED固定在板上的綠燈閃爍電路板。
1. 原理圖設計
/* * 文件名：blink.sch * 說明：閃爍LED電路圖 */ EESchema Schematic File Version 5 EEE Library Version 2.5 TimeStamp 4/5/2022 12:53:31 Sheet 1 1/1 Title "LED 燈泡驅動器" Comp Shorthand L Comment1 "聲明: 本產品僅供研究者所用" Comment2 "有關正在進行的項目" Comment3 "" Comment4 "" Comment5 "" Comment6 "" Comment7 "" Comment8 "" Comment9 "" SymbolLEDV 2350 2000 R0 SymbolNPNV 5175 1825 R0 SymbolNPNV 5175 2175 R0 Connection ~ 1200 2800 Wire Wire Line 1750 2275 1750 2600 Wire Wire Line 1875 2825 2250 2825 Wire Wire Line 2250 2825 2250 2225 Wire Wire Line 1750 2225 2250 2225 Wire Wire Line 2675 2225 2675 2875 Wire Wire Line 2675 2875 2850 2875 Wire Wire Line 2850 2875 2850 2225 Wire Wire Line 2350 2000 2675 2000 Wire Wire Line 1750 2600 2250 2600 Wire Wire Line 1750 2275 2675 2275 Wire Bus Line 7675 2225 8100 2225 Wire Bus Line 7850 1950 7850 2525 Text Notes 3900 2600 0 40 !.tran 500m Text Notes 3800 2950 0 40 !Vcc=6.0V Text Notes 2625 2200 0 40 !LED Text Notes 2800 2200 0 40 !R2=510 ohm Text Notes 5250 2425 0 40 !R1=4.7k ohm Text Notes 3900 2375 0 40 !C1=10uF Text Notes 4625 2200 0 40 !Q2=PNP型 Text Notes 4625 2275 0 40 !2N2907A Text Notes 4625 2125 0 40 !BC557 Text HLabel 1275 2100 0 60 power
2. PCB布局設計
/*
* 文件名：blink.brd
* 說明：LED閃爍PCB設計
*/
KiCad PCB Board File Version 5
Date 2022年05月13日, 11:31
Comment CircuitBoard
Comment1 Created_By_CircuitBoard
(Text T0
(layer F.SilkS)
(effects (font (size 1 1) (thickness 1)))
(at 15.24 20.32 270)
(value 10uF))
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(value 2N3904))
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(at 16.51 47.24 270)
(value BC549))
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(Text T16
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(at 36.322 53.34 270)
(value "1N4148"))
(Text T17
(layer F.Fab)
(effects (font (size 0.8 0.8) (thickness 0.15)))
(at 143.51 21.34 270)
(value "BC557"))
(Text T18
(layer F.Fab)
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(at 146.05 54.61 270)
(value "BC547B"))
(Text T19
(layer F.Fab)
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(at 141.605 10.668 270)
(value "2N2907"))
(Text T20
(layer F.Fab)
(effects (font (size 0.8 0.8) (thickness 0.15)))
(at 141.605 17.78 270)
(value "2N2905"))
(Text Notes 18.54 33.78 0 50 !.title)
(Text Notes 127.254 17.78 0 50 !Revision Date: 2021-05-05)
(Text Notes 18.54 27.94 0 50 !LED 驅動器)
(FPText Net-_C1
(at 19.81 16.51)
(layer F.Fab)
(effects (font (size 0.8 0.8) (thickness 0.15))))
(fp_text value "10uF" (at 15.24 20.32) (layer F.SilkS)
(effects (font (size 1 1) (thickness 1))))
(fp_line (start 13.97 13.97) (end 26.67 13.97) (layer F.SilkS) (width 0.15))
(fp_line (start 26.67 13.97) (end 26.67 27.94) (layer F.SilkS) (width 0.15))
(fp_line (start 26.67 27.94) (end 13.97 27.94) (layer F.SilkS) (width 0.15))
(fp_line (start 13.97 27.94) (end 13.97 13.97) (layer F.SilkS) (width 0.15))
)3. 繪製PCB
完成PCB布局設計後，需要繪製電路板，該示例代碼可以實現LED和晶體管的連接，LED可以正常閃爍。
1) 電路圖
/*
* 文件名：light.sch
* 說明：LED和晶體管連接的電路圖
*/EESchema Schematic File Version 2
Libraries:hello
EELAYER 24 0
EELAYER END
$Descr A4 11693 8268
entire-board
$EndDescr
Text Label 198 69 0 50 ~ 0
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 174 143
Text Label 35 215 0 50m 6.00V
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 252 206
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire原創文章，作者：KRERO，如若轉載，請註明出處：https://www.506064.com/zh-hk/n/334525.html
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