PCB layout txoj cai:
1. Nyob rau hauv ib txwm muaj, tag nrho cov khoom yuav tsum tau teem rau tib qhov chaw ntawm lub rooj tsav xwm Circuit Court.Tsuas yog thaum cov txheej txheem saum toj kawg nkaus yog tuab heev tuaj yeem ua qee yam khoom siv nrog qhov siab siab thiab tsis tshua muaj cua sov, xws li nti resistors, nti capacitors, thiab Chip ICs muab tso rau hauv qab txheej.
2. Raws li qhov ua tau zoo ntawm kev ua kom muaj hluav taws xob ua tau zoo, cov khoom siv yuav tsum tau muab tso rau ntawm daim phiaj thiab teem caij sib dhos rau ib leeg lossis vertically kom huv si thiab zoo nkauj.Feem ntau, cov khoom tsis raug tso cai sib tshooj;lub Cheebtsam yuav tsum tau teem compactly, thiab cov Cheebtsam yuav tsum tau teem rau tag nrho cov layout.Kev faib tawm tsis sib xws thiab qhov ntom ntom.
3. Qhov tsawg kawg nkaus qhov sib nrug ntawm qhov sib txuas ntawm cov qauv ntawm cov khoom sib txawv ntawm lub rooj tsav xwm Circuit Court yuav tsum siab tshaj 1MM.
4. Qhov kev ncua deb ntawm ntug ntawm lub rooj tsav xwm Circuit Court feem ntau tsis tsawg dua 2MM.Qhov zoo tshaj plaws zoo ntawm lub rooj tsav xwm Circuit Court yog ib daim duab plaub nrog qhov sib piv ntawm 3: 2 lossis 4: 3.Thaum qhov loj ntawm lub rooj tsav xwm Circuit Court yog ntau dua 200MM los ntawm 150MM, lub rooj tsav xwm Circuit Court tuaj yeem dais Mechanical zog.
PCB Design Considerations
(1) Tsis txhob teeb tsa cov kab teeb liab tseem ceeb ntawm ntug ntawm PCB, xws li moos thiab rov pib teeb liab.
(2) Qhov kev ncua deb ntawm chassis hauv av xaim thiab kab teeb liab yog tsawg kawg yog 4 hli;khaws cov nam piv ntawm chassis hauv av xaim tsawg dua 5: 1 kom txo cov nyhuv inductance.
(3) Siv lub luag haujlwm LOCK txhawm rau txhawm rau ntsuas cov khoom siv thiab cov kab uas nws txoj haujlwm tau txiav txim siab, kom lawv tsis txhob ua yuam kev yav tom ntej.
(4) Qhov dav tsawg kawg nkaus ntawm cov hlau yuav tsum tsis pub tsawg dua 0.2 hli (8mil).Hauv high-density thiab high-precision printed circuits, qhov dav thiab qhov sib txawv ntawm cov xov hlau feem ntau yog 12mil.
(5) Lub hauv paus ntsiab lus 10-10 thiab 12-12 tuaj yeem siv rau kev xaim ntawm IC pins ntawm pob DIP, uas yog, thaum ob lub xov hlau hla ntawm ob tus pins, lub ncoo txoj kab uas hla tuaj yeem teem rau 50mil, thiab kab dav thiab kab sib nrug yog ob qho tib si 10mil, thaum tsuas yog ib qho xaim hla ntawm ob tus pins, lub ncoo txoj kab uas hla tuaj yeem teem rau 64mil, thiab kab dav thiab kab sib nrug yog ob qho tib si 12mil.
(6) Thaum txoj kab uas hla ntawm lub ncoo yog 1.5mm, txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws yog 1.5mm, koj tuaj yeem siv lub voj voog ntev ntev tsis pub tsawg tshaj 1.5mm thiab dav ntawm 1.5mm.
(7) Tsim Thaum cov kab txuas nrog cov ntaub qhwv nyias nyias, kev sib txuas ntawm cov ntaub qhwv thiab cov kab yuav tsum tau tsim los ntawm cov ntaub qhwv, kom cov ntaub qhwv tsis yooj yim rau tev thiab cov kab thiab cov ntaub qhwv tsis yooj yim rau kev txiav.
(8) Thaum tsim qhov loj-tawg tooj liab cladding, yuav tsum muaj qhov rais ntawm cov tooj liab cladding, qhov kub dissipation qhov yuav tsum tau ntxiv, thiab cov qhov rais yuav tsum tau tsim rau hauv ib tug mesh zoo.
(9) Ua kom luv luv ntawm kev sib txuas ntawm cov khoom siv hluav taws xob ntau ntau li ntau tau los txo lawv cov kev faib tawm thiab kev cuam tshuam ntawm electromagnetic cuam tshuam.Cheebtsam uas raug cuam tshuam los ntawm kev cuam tshuam tsis tuaj yeem nyob ze rau ib leeg, thiab cov khoom nkag thiab cov khoom tawm yuav tsum tau khaws cia kom deb li deb tau.
Post lub sij hawm: Apr-14-2023