qhia
Cov ntawv luam tawm Circuit Board (PCB) yog cov pob txha ntawm cov khoom siv hluav taws xob, muab lub platform rau kev sib txuas thiab txhawb nqa ntau yam khoom siv hluav taws xob.Tsim ib lub PCB tuaj yeem zoo li tsis txaus ntseeg, tshwj xeeb tshaj yog rau cov neeg pib tshiab, tab sis nrog kev paub thiab txoj hauv kev zoo, nws tuaj yeem yog txheej txheem zoo siab thiab muaj txiaj ntsig.Hauv blog no, peb yuav taug kev koj los ntawm cov kauj ruam yooj yim thiab kev txiav txim siab kom ua tiav koj tus kheej PCB los ntawm kos.
1. Nkag siab txog cov qauv tsim
Ua ntej pib ntawm PCB tsim kev taug kev, nws yog ib qho tseem ceeb kom paub meej tias qhov project yuav tsum tau ua.Txiav txim siab lub hom phiaj ntawm lub rooj tsavxwm, nws lub hom phiaj siv, thiab cov khoom tshwj xeeb uas nws xav tau hauv tsev.Ua raws li cov lus qhia tshwj xeeb ntawm hluav taws xob, qhov yuav tsum tau muaj kev txwv loj, thiab txhua yam tshwj xeeb lossis kev ua haujlwm yuav tsum tau ua.
2. Sketch thiab npaj cov layout
Tsim ib qho schematic yog qhov pib rau txhua tus qauv PCB.Siv cov cuab yeej software xws li EAGLE, KiCAD lossis Altium, koj tuaj yeem tig koj lub tswv yim rau hauv daim duab kos duab.Qhov no suav nrog kev sib txuas cov khoom siv hluav taws xob, coj txoj hauv kev ntawm cov teeb liab hluav taws xob.
Tom ntej no, lub cev layout ntawm PCB yuav tsum tau npaj.Xav txog tej yam xws li kev tso chaw, teeb liab taug qab txoj kev, qhov chaw muab hluav taws xob, thiab cov dav hlau hauv av.Xyuas kom cov layout ua raws li kev lag luam tsim cov cai thiab cov kev coj ua zoo tshaj plaws kom tsis txhob muaj teeb meem cuam tshuam lossis suab nrov.
3. Cheebtsam xaiv thiab tso
Xaiv cov khoom tsim nyog rau PCB yog qhov tseem ceeb rau nws txoj haujlwm thiab kev ua haujlwm.Xav txog yam xws li qhov ntsuas hluav taws xob, qhov xav tau tam sim no, thiab kev sib raug zoo nrog lwm cov khoom.Kev tshawb nrhiav thiab nrhiav cov khoom zoo tshaj plaws los ntawm cov neeg muag khoom muaj npe nrov.
Kev ua haujlwm tau zoo yog qhov tseem ceeb rau kev ua kom muaj kev sib koom ua ke thiab kev tsim kho PCB.Muab tswv yim tso cov khoom thaum xav txog cov teeb liab ntws, lub zog xav tau, thiab kev xav txog thermal.Nws tseem yog ib qho tseem ceeb kom tso cai kom txaus tshem tawm ntawm cov khoom kom tsis txhob muaj kev cuam tshuam thaum lub sij hawm soldering los yog lub rooj sib txoos.
4. Routing cov kab PCB
Trace routing yog hais txog cov txheej txheem ntawm kev tsim cov kab tooj liab uas txuas rau ntau yam khoom ntawm PCB.Cov teeb liab, lub zog, thiab cov kab hauv av yuav tsum tau ua tib zoo npaj.Ua raws li cov txheej txheem txheej txheej kom cais cov teeb liab siab ceev thiab rhiab heev los ntawm lub suab nrov lossis lub zog siab.
Cov yam ntxwv xws li cov kab dav dav, qhov sib txuam ntev, thiab kev tswj xyuas impedance ua lub luag haujlwm tseem ceeb hauv cov teeb liab kev ncaj ncees thiab robustness.Nco ntsoov ua raws li cov cai tsim thiab cov txheej txheem muab los ntawm cov cuab yeej software kom tsis txhob muaj teeb meem tshwm sim thaum lub sijhawm tsim khoom.
5. Cov kev cai thiab tsim validation
Tom qab routing tiav, nws yog ib qho tseem ceeb los xyuas qhov tsim ua ntej ua tiav nws.Ua qhov kev kuaj xyuas kev tsim qauv (DRC) txhawm rau txhawm rau txheeb xyuas qhov ua yuam kev lossis ua txhaum cai.Cov kauj ruam no ua kom ntseeg tau tias tus qauv tsim ua raws li kev tsim khoom thiab cov kev qhia tshwj xeeb.
6. Sau thiab tsim cov ntaub ntawv tsim khoom
Kev sau cov ntaub ntawv raug PCB tsim yog qhov tseem ceeb rau yav tom ntej siv thiab kev debugging.Tsim cov ntaub ntawv tsim nyog tsim nyog, suav nrog cov ntaub ntawv Gerber, cov ntaub ntawv xyaum, thiab Daim Ntawv Sau Npe (BOM).Muab ob npaug rau-xyuas cov ntaub ntawv kom paub tseeb tias lawv raug sawv cev rau koj tus qauv tsim.
nyob rau hauv xaus
Tsim koj tus kheej PCB los ntawm kos tej zaum yuav zoo li yog ib txoj haujlwm txaus ntshai thaum xub thawj, tab sis nrog kev ua siab ntev, kev xyaum, thiab txoj hauv kev zoo, nws tuaj yeem dhau los ua kev lom zem.Los ntawm kev nkag siab txog kev tsim qauv, ua tib zoo npaj cov qauv, xaiv cov khoom tsim nyog, kev ua haujlwm tau zoo, thiab ua kom muaj kev pov thawj tsim, koj tuaj yeem tsim cov PCBs ua haujlwm thiab txhim khu kev qha.Yog li vim li cas tos?Nkag mus rau hauv lub ntiaj teb ntawm PCB tsim thiab coj koj cov phiaj xwm hluav taws xob mus rau lub neej!
Post lub sij hawm: Jun-19-2023