1. Muab qhov tseem ceeb tshaj plaws ua ntej

Qhov tseem ceeb tshaj plaws yog dab tsi?

Txhua feem ntawm lub rooj tsav xwm Circuit Court yog qhov tseem ceeb. Txawm li cas los xij, qhov tseem ceeb tshaj plaws hauv kev teeb tsa hluav taws xob yog cov no, koj tuaj yeem hu lawv “cov khoom tseem ceeb”. Lawv muaj xws li connectors, keyboards, fais fab tuag, thiab lwm yam. Nyob rau hauv koj PCB layout, muab feem ntau ntawm cov khoom ua ntej.

2. Ua kom cov tub ntxhais / cov khoom loj hauv nruab nrab ntawm PCB layout

Cov ntsiab lus tseem ceeb yog cov khoom siv uas paub txog qhov tseem ceeb ntawm kev tsim hluav taws xob. Ua rau lawv qhov chaw nruab nrab ntawm koj lub PCB layout. Yog hais tias ib feem yog loj, nws yuav tsum tau muab tso rau hauv lub layout. Tom qab ntawd muab lwm cov khoom siv hluav taws xob nyob ib ncig ntawm cov tub ntxhais / cov khoom loj.

3. Ob luv thiab plaub cais

Koj qhov kev teeb tsa PCB yuav tsum ua kom tau raws li rau qhov yuav tsum tau ua hauv qab no kom ntau li ntau tau. Tag nrho cov xaim yuav tsum luv. Lub teeb liab tseem ceeb yuav tsum luv. Cov teeb liab siab voltage thiab siab tam sim no yog tag nrho sib cais los ntawm qhov tsis tshua muaj hluav taws xob thiab cov teeb liab tam sim no. Cov teeb liab analog thiab cov teeb liab digital tau sib cais hauv kev tsim hluav taws xob. Cov teeb liab siab zaus thiab cov teeb liab tsawg zaus tau sib cais. Qhov siab zaus yuav tsum tau sib cais thiab qhov kev ncua deb ntawm lawv yuav tsum nyob deb li deb tau.

4. Layout standard-uniform, sib npaug thiab zoo nkauj

Cov txheej txheem Circuit Court board yog uniform, lub ntiajteb txawj nqus-balanced thiab zoo nkauj. Thov khaws cov qauv no hauv siab thaum ua kom zoo rau PCB layout. Uniformity txhais tau hais tias cov khoom thiab cov xaim sib npaug sib npaug hauv cov txheej txheem PCB. Yog tias qhov kev teeb tsa tsis sib xws, lub ntiajteb txawj nqus yuav tsum sib npaug. Qhov no yog qhov tseem ceeb vim tias PCB sib npaug tuaj yeem tsim cov khoom siv hluav taws xob ruaj khov.

5. Ua ntej ua cov teeb liab tiv thaiv thiab tom qab ntawd lim

PCB xa ntau yam teeb liab, thiab qhov sib txawv ntawm nws kis lawv tus kheej cov cim. Yog li ntawd, koj yuav tsum tiv thaiv lub teeb liab ntawm txhua feem thiab tiv thaiv cov teeb liab cuam tshuam ua ntej, thiab tom qab ntawd xav txog kev lim cov teeb meem tsis zoo ntawm cov khoom hluav taws xob. Nco ntsoov txoj cai no. Yuav ua li cas raws li txoj cai no? Kuv qhov kev tawm tswv yim yog tso cov lim dej, kev tiv thaiv thiab kev sib cais ntawm cov teeb liab interface ze rau lub interface txuas. Kev tiv thaiv teeb liab yog ua ntej, thiab tom qab ntawd kev lim dej ua tiav.

6. Txiav txim siab qhov loj thiab cov txheej txheem ntawm PCB kom ntxov li sai tau

Txiav txim siab qhov loj ntawm lub rooj tsav xwm hauv Circuit Court thiab tus naj npawb ntawm cov txheej thaiv hauv cov txheej txheem thaum ntxov ntawm PCB layout. nws yog qhov tsim nyog. Qhov laj thawj yog raws li nram no. Cov khaubncaws sab nraud povtseg thiab pawg ncaj qha cuam tshuam rau kev xaim thiab impedance ntawm cov kab ntawv luam tawm. Ntxiv mus, yog tias qhov loj ntawm lub rooj tsav xwm Circuit Court tau txiav txim siab, pawg thiab qhov dav ntawm cov kab ntawv luam tawm yuav tsum tau txiav txim siab kom ua tiav qhov kev xav tau ntawm PCB tsim. Nws yog qhov zoo tshaj plaws los siv cov txheej hauv Circuit Court kom ntau li ntau tau thiab faib cov tooj liab sib npaug.

7. Txiav txim siab PCB tsim cov cai thiab txwv

Txhawm rau kom ua tiav txoj haujlwm, koj yuav tsum ua tib zoo xav txog cov qauv tsim thiab ua kom cov cuab yeej routing ua haujlwm raws li cov cai thiab cov kev txwv, uas yuav cuam tshuam rau kev ua haujlwm ntawm cov cuab yeej routing. Yog li kuv yuav ua li cas? Raws li qhov tseem ceeb, tag nrho cov teeb liab kab nrog tshwj xeeb yuav tsum tau muab cais. Qhov tseem ceeb dua, txoj cai nruj dua rau cov kab teeb liab. Cov kev cai no suav nrog qhov dav ntawm cov kab ntawv luam tawm, qhov siab tshaj plaws ntawm vias, kev sib luag, kev sib koom ua ke ntawm cov teeb liab kab, thiab kev txwv txheej.

8. Txiav txim siab DFM cov cai rau kev teeb tsa

DFM yog cov ntawv luv ntawm “tsim rau kev tsim khoom” thiab “tsim rau kev tsim khoom”. DFM cov kev cai muaj kev cuam tshuam zoo rau kev teeb tsa ntawm qhov chaw, tshwj xeeb tshaj yog kev ptimization ntawm cov txheej txheem tsheb sib dhos. Yog tias lub tuam txhab sib dhos lossis PCB lub tuam txhab sib dhos tso cai rau cov khoom txav, lub voj voog tuaj yeem ua kom zoo dua los ua kom yooj yim tsis siv neeg routing. Yog tias koj tsis paub meej txog DFM cov cai, koj tuaj yeem tau txais kev pabcuam DFM dawb los ntawm PCBONLINE. Cov cai muaj xws li:

Nyob rau hauv lub PCB layout, lub hwj huam mov decoupling Circuit Court yuav tsum tau muab tso rau ze ntawm lub Circuit Court, tsis yog lub hwj chim mov. Txwv tsis pub, nws yuav cuam tshuam cov nyhuv bypass thiab ua rau lub zog ntawm lub zog ntawm cov kab hluav taws xob thiab cov kab hauv av ntws, yog li ua rau muaj kev cuam tshuam.

Rau cov kev taw qhia ntawm lub hwj chim mov nyob rau hauv lub Circuit Court, lub hwj chim mov yuav tsum yog los ntawm lub kawg theem mus rau lub yav dhau los theem, thiab lub hwj chim mov lim capacitor yuav tsum tau muab tso rau ze rau theem kawg.

Rau qee qhov kev xaim tam sim no tseem ceeb, yog tias koj xav txiav lossis ntsuas tam sim no thaum kuaj kev debugging thiab kuaj, koj yuav tsum teeb tsa qhov sib txawv tam sim no ntawm cov kab ntawv luam tawm hauv PCB layout.

Tsis tas li ntawd, yog tias ua tau, cov khoom siv hluav taws xob ruaj khov yuav tsum tau muab tso rau ntawm cov ntawv luam tawm cais. Yog tias cov khoom siv hluav taws xob thiab hluav taws xob nyob rau ntawm daim ntawv luam tawm, cais cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob thiab tsis txhob siv cov xaim hauv av.

Vim li cas?

Vim peb tsis xav ua kev cuam tshuam. Nyob rau hauv tas li ntawd, nyob rau hauv no txoj kev, lub load yuav tsum tau disconnected thaum lub sij hawm txij nkawm, tshem tawm qhov yuav tsum tau txiav ib feem ntawm cov luam Circuit Court kab thiab ua puas rau cov luam Circuit Court board.

9. Txhua qhov sib npaug saum npoo av muaj tsawg kawg yog ib qho los ntawm qhov

Thaum lub kiv cua-tsim tsim, yuav tsum muaj tsawg kawg yog ib los ntawm lub qhov rau txhua qhov chaw mount sib npaug rau cov khoom. Nyob rau hauv txoj kev no, thaum koj xav tau kev sib txuas ntxiv, koj tuaj yeem tswj cov kev sib txuas sab hauv, kev sim hauv online, thiab rov ua dua ntawm lub voj voog ntawm lub rooj tsavxwm.

10. Kev tuav thaiv kev thaiv ua ntej tsis siv neeg xaim

Nyob rau hauv lub dhau los, yav dhau los, nws yeej ib txwm yog phau ntawv xov hlau, uas yeej ib txwm yog ib tug tsim nyog txheej txheem rau luam Circuit Court board tsim.

Vim li cas?

Yog tsis muaj phau ntawv thaiv, cov cuab yeej siv hluav taws xob tsis siv neeg yuav tsis tuaj yeem ua tiav cov xaim. Nrog phau ntawv thaiv, koj yuav tsim txoj hauv kev uas yog lub hauv paus rau kev xaim tsis siv neeg.

Yog li yuav ua li cas rau txoj kev manually?

Tej zaum koj yuav tau xaiv thiab kho qee cov nets tseem ceeb hauv kev teeb tsa. Ua ntej, txoj kev teeb tsa tseem ceeb manually lossis nrog kev pab los ntawm cov cuab yeej tsis siv neeg routing. Qee qhov hluav taws xob tsis zoo (xws li faib inductance) yuav tsum tau teeb tsa me me li sai tau. Tom ntej no, tshawb xyuas cov xaim ntawm cov cim tseem ceeb, lossis nug lwm tus kws tshaj lij engineers lossis PCBONLINE los pab tshawb xyuas. Tom qab ntawd, yog tias tsis muaj teeb meem nrog kev xaim, thov kho cov xov hlau ntawm PCB thiab pib xa lwm cov teeb liab tau txais.

Ceev faj:

Vim lub impedance ntawm cov av xaim, yuav muaj kev cuam tshuam impedance ntawm Circuit Court.

11. Teeb cov kev txwv thiab cov cai rau kev ua haujlwm tsis siv neeg

Niaj hnub no, cov cuab yeej tsis siv neeg routing muaj zog heev. Yog tias muaj kev txwv thiab cov kev cai raug teeb tsa kom tsim nyog, lawv tuaj yeem ua tiav yuav luag 100% routing.

Tau kawg, koj yuav tsum xub nkag siab txog cov kev nkag tsis tau thiab cov teebmeem ntawm cov cuab yeej tsis siv neeg routing.

Txhawm rau ua cov kab teeb liab, cov kev cai dav dav yuav tsum tau txais, uas yog, cov khaubncaws sab nraud povtseg ntawm cov teeb liab hla thiab tus lej ntawm cov qhov raug txiav txim siab los ntawm kev teeb tsa kev txwv thiab tsis tso cai rau qhov chaw thaiv. Ua raws li txoj cai no, cov cuab yeej tsis siv neeg routing tuaj yeem ua haujlwm raws li koj xav tau.

Thaum ua tiav ib feem ntawm PCB tsim qhov project, thov kho nws ntawm lub rooj tsav xwm hauv Circuit Court kom tsis txhob muaj kev cuam tshuam los ntawm qhov txuas txuas ntxiv. Tus naj npawb ntawm routing nyob ntawm qhov complexity ntawm Circuit Court thiab nws cov kev cai dav dav.

Ceev faj:

Yog hais tias lub cuab yeej tsis siv neeg routing tsis ua tiav cov teeb liab routing, koj yuav tsum txuas ntxiv nws txoj haujlwm kom manually khiav cov cim tseem ceeb.

12. optimize routing

Yog tias cov kab teeb liab siv rau kev txwv tsis pub ntev heev, thov nrhiav cov kab tsim nyog thiab tsis tsim nyog, thiab txo cov xov hlau kom ntau li ntau tau thiab txo cov xov tooj los ntawm qhov.

xaus

Raws li cov khoom siv hluav taws xob ua tau zoo dua, cov tshuab hluav taws xob thiab hluav taws xob yuav tsum paub ntau dua PCB tsim kev txawj ntse. Nkag siab txog 12 PCB tsim cov cai thiab cov txheej txheem thiab ua raws li lawv ntau li ntau tau, koj yuav pom tias PCB layout tsis yooj yim dua.