Abstract: Hauv kev kub ceev PCB tsim, dhau los ntawm qhov tsim yog qhov tseem ceeb, nws tau tsim los ntawm qhov, lub ncoo nyob ib ncig ntawm lub qhov thiab POWER txheej cais qhov chaw, feem ntau muab faib ua qhov tsis pom qhov muag, faus qhov thiab hla qhov peb hom. Los ntawm kev tshuaj xyuas qhov muaj peev xwm kis tau tus kab mob thiab kis tus kab mob inductance hauv PCB tsim, qee cov ntsiab lus rau kev saib xyuas hauv PCB kev tsim qauv nrawm tau sau tseg.

Ntsiab lus: dhau qhov; Parasitic capacitance; Parasitic inductance; Tsis-nkag qhov tshuab

Kev tsim PCB nrawm hauv kev sib txuas lus, khoos phis tawj, daim duab ua daim ntawv thov, txhua qhov khoom siv thev naus laus zis muaj txiaj ntsig ntxiv tsim cov khoom siv hluav taws xob tsim los ntawm kev siv hluav taws xob tsawg, hluav taws xob qis hluav taws xob, muaj kev ntseeg siab, ua haujlwm me me, teeb lub luag haujlwm thiab lwm yam, txhawm rau ua tiav cov hom phiaj no, hauv kev tsim PCB nrawm, dhau ntawm qhov tsim yog qhov tseem ceeb.

Los ntawm qhov yog qhov tseem ceeb hauv ntau txheej txheej PCB tsim, ib qho dhau los yog qhov tsim los ntawm peb ntu, ib qho yog lub qhov; Qhov thib ob yog thaj chaw nyob ib ncig ntawm lub qhov; Thib peb, thaj chaw sib cais ntawm POWER txheej. Cov txheej txheem ntawm lub qhov yog txhawm rau txheej txheej hlau ntawm lub ntsej muag cylindrical ntawm lub qhov phab ntsa los ntawm kev siv tshuaj lom los txhawm rau txuas cov ntawv ci tooj liab uas xav tau txuas nrog hauv nruab nrab txheej. Sab qaum thiab sab qis ntawm lub qhov yog tsim ua ib qho zoo ib yam ntawm lub ncoo, uas tuaj yeem txuas ncaj qha nrog sab saud thiab qis dua ntawm kab, lossis tsis txuas nrog. Los ntawm qhov taub tuaj yeem siv rau kev txuas hluav taws xob, kho lossis teeb tsa ntawm cov khoom siv.

Kev kub ceev PCB los ntawm qhov tsim

Los ntawm qhov feem ntau muab faib ua peb pawg: qhov muag tsis pom qhov, faus qhov thiab hla qhov.

Qhov muag tsis pom qhov: lub qhov nyob rau sab saum toj thiab hauv qab ntawm cov ntawv luam tawm Circuit board nrog qee qhov tob rau txuas cov kab hluav taws xob sab hauv rau sab hauv Circuit hauv qab no. Qhov tob ntawm lub qhov feem ntau tsis tshaj qhov piv txwv ntawm lub qhov taub.

Lub qhov faus: qhov sib txuas hauv txheej sab hauv ntawm lub rooj tsav xwm hluav taws xob luam tawm uas tsis txuas mus rau saum npoo ntawm lub rooj tsav xwm luam tawm.

Qhov muag tsis pom qhov thiab faus qhov ob hom qhov nyob hauv txheej sab hauv ntawm pawg thawj coj saib xyuas vaj huam sib luag, laminating siv los ntawm qhov txheej txheem txheej txheem kom ua tiav, hauv cov txheej txheem tsim kuj yuav sib tshooj ob peb txheej sab hauv.

Dhau-qhov uas dhau los ntawm txhua lub rooj tsav xwm hauv Circuit Court thiab tuaj yeem siv rau kev sib txuas sab hauv lossis raws li kev teeb tsa thiab nrhiav qhov rau cov khoom. Vim tias qhov dhau los ntawm tus txheej txheem ua kom yooj yim dua, tus nqi qis dua, yog li cov ntawv luam tawm dav dav tau siv.