Layout tswv yim
Hauv cov txheej txheem kev teeb tsa PCB, thawj qhov kev txiav txim siab yog qhov loj ntawm PCB.Tom ntej no, peb yuav tsum xav txog cov khoom siv thiab cov cheeb tsam uas muaj cov qauv kev xav tau, xws li seb puas muaj qhov siab txwv, qhov dav txwv thiab xuas nrig ntaus, qhov chaw seem.Tom qab ntawd raws li lub teeb liab Circuit Court thiab lub zog khiav, pre-layout ntawm txhua lub voj voog module, thiab thaum kawg raws li cov qauv tsim ntawm txhua lub voj voog module kom ua tiav qhov kev teeb tsa ntawm txhua qhov chaw ua haujlwm.
Lub hauv paus ntsiab lus ntawm layout
1. Sib txuas lus nrog cov neeg ua haujlwm tsim nyog kom ua tau raws li cov kev cai tshwj xeeb hauv cov qauv, SI, DFM, DFT, EMC.
2. Raws li cov qauv kos duab kos duab, qhov chaw txuas, qhov sib txuas, qhov ntsuas thiab lwm yam khoom siv uas yuav tsum tau muab tso rau, thiab muab cov cuab yeej no txav tsis tau thiab qhov ntev.
3. Raws li cov qauv kos duab kos duab thiab cov kev cai tshwj xeeb ntawm qee yam khoom siv, teeb tsa qhov chaw txwv tsis pub txuas thiab txwv tsis pub layout cheeb tsam.
4. Kev txiav txim siab ntawm PCB kev ua tau zoo thiab kev ua tau zoo ntawm kev ua haujlwm los xaiv cov txheej txheem kev khiav dej num (qhov tseem ceeb rau ib leeg SMT; ib leeg SMT + plug-in.
Ob sab SMT;ob-sided SMT + plug-in), thiab raws li kev teeb tsa ntawm cov txheej txheem sib txawv.
5. layout nrog rau cov txiaj ntsig ntawm pre-layout, raws li "thawj loj, ces me, thawj nyuaj, ces yooj yim" layout txoj cai.
6. qhov kev teeb tsa yuav tsum sim ua kom tau raws li cov kev cai hauv qab no: tag nrho cov kab kom luv li sai tau, cov kab teeb liab luv tshaj plaws;high voltage, high tam sim no signals thiab tsawg voltage, me me tam sim no teeb liab tsis muaj zog teeb liab kiag li cais;analog teeb liab thiab digital teeb liab cais;high zaus teeb liab thiab tsawg zaus teeb liab cais;high zaus Cheebtsam ntawm qhov sib nrug kom txaus.Nyob rau hauv qhov chaw ua tau raws li qhov yuav tsum tau ua ntawm simulation thiab lub sij hawm tsom xam, kev hloov hauv zos.
7. Tib qhov chaw hauv Circuit Court kom deb li deb tau siv symmetrical modular layout.
8. layout chaw pom zoo daim phiaj rau 50 mil, IC ntaus ntawv layout, daim phiaj pom zoo rau 25 25 25 25 25 mil.layout ceev yog siab dua, me me nto mount li, daim phiaj chaw pom zoo tsis pub tsawg tshaj 5 mil.
Lub hauv paus ntsiab lus layout ntawm cov khoom tshwj xeeb
1. kom deb li deb tau kom txo qhov ntev ntawm kev sib txuas ntawm FM cov khoom.Kev cuam tshuam rau cov khoom cuam tshuam tsis tuaj yeem nyob ze rau ib leeg, sim txo lawv cov kev faib tawm thiab kev cuam tshuam electromagnetic.
2. rau qhov muaj peev xwm muaj peev xwm ntau dua qhov sib txawv ntawm cov cuab yeej thiab cov xaim, yuav tsum nce qhov kev ncua deb ntawm lawv kom tsis txhob muaj kev sib tsoo luv luv.Cov cuab yeej siv hluav taws xob muaj zog, sim npaj rau hauv qhov chaw uas tsis yooj yim rau tib neeg.
3. Nyhav ntau tshaj 15g Cheebtsam, yuav tsum tau ntxiv bracket tsau, thiab ces vuam.Rau qhov loj thiab hnyav, cov khoom siv hluav taws xob tsim hluav taws xob yuav tsum tsis txhob muab tso rau hauv PCB, ntsia rau hauv tag nrho cov vaj tsev yuav tsum xav txog qhov teeb meem ntawm cov cua sov dissipation, cov khoom siv hluav taws xob yuav tsum nyob deb ntawm cov khoom siv hluav taws xob.
4. rau potentiometers, adjustable inductor coils, hloov pauv capacitors, micro keyboards thiab lwm yam adjustable Cheebtsam layout yuav tsum xav txog cov yam ntxwv ntawm lub tshuab, xws li qhov siab txwv, qhov luaj li cas, center coordinates, thiab lwm yam.
5. Pre-txoj hauj lwm ntawm PCB qhov chaw qhov thiab ruaj khov tuav nyob rau hauv txoj hauj lwm.
Kev kuaj xyuas tom qab layout
Hauv kev tsim PCB, kev tsim qauv tsim nyog yog thawj kauj ruam hauv kev ua tiav ntawm PCB tsim, engineers yuav tsum nruj me ntsis xyuas cov hauv qab no tom qab kev teeb tsa tiav.
1. PCB loj cov cim, cov cuab yeej layout yog ua raws li cov qauv kos duab, seb nws ua tau raws li cov txheej txheem tsim khoom PCB, xws li qhov tsawg kawg nkaus txoj kab uas hla, qhov tsawg kawg nkaus kab dav.
2. seb cov khoom puas cuam tshuam rau ib leeg hauv ob sab thiab peb-dimensional qhov chaw, thiab seb lawv puas yuav cuam tshuam rau ib leeg nrog cov qauv vaj tsev.
3. seb cov khoom puas tau muab tso rau tag nrho.
4. qhov yuav tsum tau nquag ntsaws lossis hloov cov khoom siv yog yooj yim rau ntsaws thiab hloov.
5. Puas muaj qhov kev ncua deb ntawm cov khoom siv thermal thiab cov khoom siv hluav taws xob.
6. Puas yog nws yooj yim los kho cov cuab yeej kho tau thiab nias lub pob.
7. Seb qhov chaw ntawm lub installation ntawm lub dab dej kub yog cov huab cua du.
8. Txawm hais tias lub teeb liab ntws yog du thiab luv tshaj kev sib txuas.
9. Seb qhov teeb meem ntawm kab cuam tshuam tau raug txiav txim siab.
10. Yog lub plug, qhov (socket) contradictory rau cov neeg kho tshuab tsim.
Post lub sij hawm: Dec-23-2022