Hauv kev tsim PCB, kev teeb tsa ntawm cov khoom siv yog ib qho tseem ceeb txuas. Rau ntau PCB engineers, yuav ua li cas nteg tawm cov khoom tsim nyog thiab ua tau zoo muaj nws tus kheej cov qauv. Peb suav cov kev txawj layout, kwv yees li hauv qab no 10 Cov txheej txheem ntawm cov khoom siv hluav taws xob yuav tsum tau ua raws!
Circuit Board Hoobkas
1. Ua raws li lub hauv paus ntsiab lus ntawm "loj ua ntej, tom qab me me, nyuaj ua ntej, yooj yim ua ntej", uas yog, qhov tseem ceeb ntawm chav tsev circuits thiab cov khoom tseem ceeb yuav tsum tau muab tso ua ntej.
2. Lub hauv paus ntsiab lus thaiv daim duab yuav tsum raug xa mus rau hauv qhov kev teeb tsa, thiab cov khoom tseem ceeb yuav tsum tau npaj raws li lub ntsiab lus tseem ceeb ntawm lub rooj tsavxwm.
3. Kev npaj ntawm cov khoom yuav tsum yooj yim rau kev debugging thiab tu, uas yog, cov khoom loj tsis tuaj yeem muab tso rau ntawm cov khoom me me, thiab yuav tsum muaj qhov chaw txaus nyob ib puag ncig cov khoom uas yuav tsum tau debugged.
4. Rau cov khoom siv hluav taws xob ntawm tib lub qauv, siv cov qauv "symmetrical" layout kom ntau li ntau tau.
5. Ua kom zoo rau qhov kev teeb tsa raws li cov qauv kev faib khoom sib xws, qhov chaw sib luag ntawm lub ntiajteb txawj nqus, thiab cov txheej txheem zoo nkauj.
6. Tib hom plug-in Cheebtsam yuav tsum muab tso rau hauv ib qho kev taw qhia ntawm X lossis Y kev taw qhia. Tib hom polarized discrete Cheebtsam yuav tsum tau siv zog ua kom zoo ib yam hauv X lossis Y kev taw qhia los pab txhawb kev tsim khoom thiab tshuaj xyuas.
Circuit Board Hoobkas
7. Cov cua kub feem ntau yuav tsum tau muab sib npaug sib npaug kom yooj yim rau cov cua sov dissipation ntawm veneer thiab tag nrho lub tshuab. Cov cuab yeej ntsuas kub uas tsis yog qhov ntsuas qhov ntsuas kub yuav tsum tau khaws cia kom deb ntawm cov khoom uas tsim kom muaj cua sov ntau.
8. Cov txheej txheem yuav tsum ua raws li cov cai hauv qab no kom deb li deb tau: tag nrho cov kev sib txuas yog luv li sai tau, thiab cov kab teeb liab tseem ceeb yog qhov luv tshaj plaws; high voltage, loj tam sim no teeb liab thiab tsis tshua muaj tam sim no, tsis tshua muaj hluav taws xob tsis muaj zog teeb liab yog kiag li cais; analog teeb liab thiab cov teeb liab digital raug cais; High zaus teeb liab Sib cais los ntawm cov teeb liab tsawg zaus; qhov sib nrug ntawm cov khoom siv ntau zaus yuav tsum txaus.
9. Cov txheej txheem ntawm decoupling capacitor yuav tsum nyob ze li qhov ua tau rau lub hwj huam mov tus pin ntawm IC, thiab lub voj voog ntawm nws thiab cov khoom siv hluav taws xob thiab hauv av yuav tsum yog luv tshaj plaws.
10. Nyob rau hauv cov txheej txheem kev teeb tsa, kev txiav txim siab tsim nyog yuav tsum tau muab rau kev tso cov khoom siv tib lub zog sib xyaw ua ke kom ntau li ntau tau los pab txhawb kev sib cais ntawm lub hwj chim yav tom ntej.