PCB txoj kev hla txoj hlua ua haujlwm

Hauv ob sab PCB pawg thawj coj saib, thaum kev sib txuas tau hla mus, qhov zoo thiab qhov tsis zoo tuaj yeem siv los daws. Hauv kev tsim ib lub rooj sib tham ntawm ib sab, qee txoj kab tsis tuaj yeem txuas nrog, feem ntau siv jumper thaiv, hauv kev pib, jumper thaiv feem ntau yog qhov xav tau, ntev thiab luv, uas yuav ua rau tsis yooj yim rau kev tsim khoom. Thaum tso cov hlua txuas, tsawg dua hom, zoo dua, feem ntau tsuas yog teeb tsa 6mm, 8mm, 10mm peb, dhau ntawm qhov no yuav ua rau muaj kev tsis yooj yim rau kev tsim khoom. Ib qho ntxiv, cov hauv qab no tuaj yeem siv los ua cov xov hlau hla kom ua tiav lub luag haujlwm ntawm jumper thaiv.

1, Ntxiv kab hla lossis xoom ohmic tsis kam. Txuas nrog cov xaim hluav taws xob hauv Circuit Board tau hu ua kab hla, tib lub rooj sib tham hauv Circuit Court yog tias qhov ntev ntawm txoj kab hla tsis sib xws yuav cuam tshuam rau qhov pom, hla kab ntev thiab cov khoom me me (xws li tiv taus) zoo ib yam. Yog tias kev teeb tsa ntawm xoom ohmic tsis kam ua kom huv dua, yog li ntawd tib neeg tsis xav tias muaj kab hla kab.
2. Cheebtsam hloov txoj kev. Piv txwv li, yog tias tus ntoo khaub lig hlau txuas nrog hauv 18K ω resistor, tam sim no qhov kev tiv thaiv tau hloov mus rau 15K ω, thiab 3K ω resistor tau teeb tsa ntawm tus ntoo khaub lig xaim. Tag nrho tus nqi tseem yog 18K ω, thiab cov ntoo khaub lig hlau raug tso tseg.
3, luam tawm hla kab. Ib lub vaj huam sib luag ntxiv rau kev luam kab hla tuaj yeem paub tom qab kev sib txuas hla, tab sis kev tsim khoom lag luam luam ntawv tus nqi yuav siab dua me ntsis.
4, labyrinth thaiv, nyob rau hauv qis digital digital Circuit, txhawm rau txhawm rau tuaj yeem xaim ntawm tib lub rooj tsavxwm, tuaj yeem siv labyrinth thaiv txoj hauv kev feem ntau nyob hauv ob lub qhov deb yog ze heev ntawm cov khoom siv sib txuas. Vim tias txoj kab kab siab thiab qhov dav kab dav, qhov kev faib ua feem ntawm pawg thawj coj saib xyuas hauv tsev yuav tsum muaj qhov loj.