4-Txheej PCB Kev daws teeb meem: EMC thiab teeb pom kev ncaj ncees cuam tshuam

Qhov cuam tshuam ntawm 4-txheej Circuit Court board routing thiab txheej txheej ntawm electromagnetic compatibility thiab teeb liab kev ncaj ncees feem ntau tsim teeb meem loj rau engineers thiab designers. Kev daws cov teeb meem zoo no yog qhov tseem ceeb rau kev ua haujlwm zoo thiab ua haujlwm zoo ntawm cov khoom siv hluav taws xob.Hauv no blog ncej, peb yuav tham txog yuav ua li cas los daws qhov teeb meem ntawm qhov cuam tshuam ntawm 4-txheej Circuit Court board thaiv thiab txheej txheej ntawm electromagnetic compatibility thiab teeb liab kev ncaj ncees.

Thaum nws los txog rau qhov cuam tshuam ntawm 4-txheej Circuit Court board routing ntawm electromagnetic compatibility (EMC) thiab teeb liab kev ncaj ncees, ib qho ntawm cov kev txhawj xeeb loj yog muaj peev xwm crosstalk.Crosstalk yog qhov tsis xav tau kev sib txuas ntawm hluav taws xob hluav taws xob ntawm cov kab uas nyob ib sab lossis cov khoom sib txuas ntawm PCB, ua rau lub teeb liab distortion thiab degradation. Kev rwb thaiv tsev kom zoo thiab qhov sib txawv ntawm cov kab sib txawv tuaj yeem txo qhov teeb meem no.

Txhawm rau txhim kho EMC thiab teeb liab kev ncaj ncees, nws yog ib qho tseem ceeb uas yuav tsum tau siv cov software tsim uas tuaj yeem ua qhov tseeb simulation thiab tsom xam.Los ntawm kev siv cov cuab yeej software xws li electromagnetic field solvers, cov neeg tsim qauv tuaj yeem soj ntsuam lub peev xwm rau crosstalk hauv virtual ib puag ncig ua ntej pib nrog lub cev prototyping. Txoj hauv kev no txuag lub sijhawm, txo cov nqi, thiab txhim kho kev tsim qauv zoo.

Lwm qhov yuav tsum tau xav txog yog kev xaiv ntawm cov khoom siv PCB layup.Kev sib xyaw ua ke ntawm cov khoom siv hluav taws xob zoo thiab cov tuab tuab tuaj yeem cuam tshuam rau electromagnetic cwj pwm ntawm PCB. Cov ntaub ntawv zoo uas tsis tshua muaj dielectric poob thiab tswj cov khoom impedance pab txhim kho cov teeb liab kev ncaj ncees thiab txo cov hluav taws xob emissions.

Tsis tas li ntawd, txheej txheej nyob rau hauv 4-txheej Circuit Court board tuaj yeem cuam tshuam EMC thiab teeb liab kev ncaj ncees.Qhov zoo tshaj plaws, qhov sib nrug ntawm cov txheej txheem PCB uas nyob ib sab yuav tsum tau ua kom zoo kom txo tau qhov cuam tshuam ntawm electromagnetic cuam tshuam thiab xyuas kom meej cov teeb liab tawm. Cov qauv kev lag luam thiab cov qauv tsim qauv yuav tsum tau ua raws li thaum txiav txim siab cov txheej txheem tsim nyog rau ib daim ntawv thov tshwj xeeb.

Txhawm rau daws cov teeb meem no, cov tswv yim hauv qab no tuaj yeem ua haujlwm:

1. Ceev faj qhov chaw tso chaw:Qhov kev tso kawm zoo pab txo qis kev sib tham ntawm PCB. Los ntawm kev tsim cov khoom siv, cov neeg tsim qauv tuaj yeem txo qhov ntev ntawm cov teeb liab ceev ceev thiab txo qhov cuam tshuam ntawm electromagnetic cuam tshuam. Txoj hauv kev no tseem ceeb tshwj xeeb tshaj yog thaum cuam tshuam nrog cov khoom tseem ceeb thiab cov kab hluav taws xob nkag siab.

2. Cov txheej txheem hauv av:Ua kom tiav cov txheej hauv av yog ib qho tseem ceeb thev naus laus zis los tswj EMC thiab txhim kho cov teeb liab kev ncaj ncees. Cov txheej hauv av ua raws li cov ntaub thaiv npog, txo cov kev sib kis ntawm electromagnetic tsis thiab tiv thaiv kev cuam tshuam ntawm cov teeb liab sib txawv. Nws yog ib qho tseem ceeb los xyuas kom meej cov txheej txheem hauv av kom raug, suav nrog kev siv ntau lub vias los txuas cov dav hlau hauv av ntawm cov txheej txheem sib txawv.

3. Multilayer stackup tsim:Qhov zoo tshaj plaws stackup tsim muaj kev xaiv cov txheej txheem tsim nyog rau cov teeb liab, hauv av, thiab cov khaubncaws sab nraud povtseg. Ua tib zoo tsim stackups pab ua kom muaj kev tswj hwm impedance, txo qis kev sib tham, thiab txhim kho teeb liab kev ncaj ncees. Cov teeb liab ceev ceev tuaj yeem hla ntawm txheej sab hauv kom tsis txhob cuam tshuam los ntawm lwm qhov chaw.

Capel qhov kev txawj ntse hauv kev txhim kho EMC thiab teeb liab kev ncaj ncees:

Nrog 15 xyoo ntawm kev paub, Capel txuas ntxiv txhim kho nws cov txheej txheem tsim khoom thiab siv cov thev naus laus zis los ua kom zoo dua EMC thiab teeb liab kev ncaj ncees. Qhov tseem ceeb ntawm Capel yog raws li nram no:
- Kev tshawb fawb dav dav:Capel nqis peev hauv kev tshawb fawb kom meej txhawm rau txheeb xyuas qhov tshwm sim thiab cov teeb meem hauv PCB tsim kom nyob ua ntej ntawm qhov nkhaus.
- Cov cuab yeej zoo tshaj plaws:Capel siv cov khoom siv hauv xeev-ntawm-tus-kos duab los tsim cov PCB hloov tau yooj yim thiab nruj-flex PCBs, kom ntseeg tau qhov siab tshaj plaws thiab zoo.
- Cov kws tshaj lij:Capel muaj pab pawg ntawm cov kws tshaj lij uas muaj kev paub dhau los nrog kev txawj ntse hauv kev ua haujlwm, muab kev nkag siab zoo thiab kev txhawb nqa rau kev txhim kho EMC thiab teeb liab kev ncaj ncees.

Hauv cov ntsiab lus

Nkag siab txog qhov cuam tshuam ntawm 4-txheej Circuit Court board routing thiab txheej txheej ntawm electromagnetic compatibility thiab teeb liab kev ncaj ncees yog qhov tseem ceeb rau kev tsim khoom siv hluav taws xob zoo. Los ntawm kev siv cov kev sim siab tshaj plaws, siv cov ntaub ntawv tsim nyog, thiab siv cov tswv yim tsim qauv zoo, cov kws ua haujlwm tuaj yeem kov yeej cov kev cov nyom no thiab ua kom tag nrho PCB kev ua tau zoo thiab kev ntseeg tau.Nrog cov kev paub dhau los thiab kev cog lus rau kev ua tau zoo, Capel tseem yog tus khub txhim khu kev qha hauv kev kov yeej cov teeb meem no. Los ntawm kev siv cov txheej txheem ua haujlwm zoo hauv kev teeb tsa lub rooj tsavxwm, kev teeb tsa hauv av thiab teeb liab, thaum siv Capel cov kev txawj ntse, cov neeg tsim qauv tuaj yeem txo EMI, txhim kho cov teeb liab kev ncaj ncees, thiab tsim kom muaj kev ntseeg siab thiab muaj txiaj ntsig zoo.