Raws li cov yam ntxwv ntawm kev cuam tshuam qhov chaw, ntau zaus, qhov hluav taws xob thiab impedance thiab lwm yam tsis zoo thiab cov yam ntxwv ntawm kev thauj khoom, kev xaiv tsim nyog ntawm cov ntxaij lim dej, feem ntau xav txog:
Rau ib qho, nws yog qhov yuav tsum tau ua kom lub tshuab electromagnetic cuam tshuam tuaj yeem ua tau raws li cov yam ntxwv attenuation thiab cov kev xav tsis zoo ntawm cov khoom yuav tsum tau ua nyob rau hauv cov kev khiav hauj lwm zaus band, thiab yog hais tias ib tug lim attenuation npaum li cas tsis tau raws li qhov yuav tsum tau, nws yuav siv tau multistage, muaj peev xwm. tau txais attenuation siab dua li ib theem, sib txawv lim cascade, tuaj yeem tau txais cov yam ntxwv zoo attenuation thiab qhov poob qis hauv broadband band.
Thib ob, txhawm rau ua kom tau raws li qhov kev ua haujlwm ntawm cov khoom siv hluav taws xob ntau zaus thiab qhov yuav tsum tau ua kom tsis txhob muaj qhov zaus ntawm qhov yuav tsum tau ua, yog tias qhov zaus yuav tsum tau txwv thiab qhov zaus ntawm cov teeb liab tseem ceeb yog ze heev, nws yog qhov yuav tsum tau muaj cov yam ntxwv ntawm qhov sib tw heev. lim, txhawm rau ua kom tau raws li qhov kev cuam tshuam ntawm kev cuam tshuam zaus lim tawm, tsuas yog tso cai rau kev siv cov teeb liab muaj txiaj ntsig zoo.Thib peb, nyob rau hauv qhov xav tau zaus, qhov impedance ntawm EMI lim RFI lim yuav tsum phim qhov cuam tshuam los ntawm impedance thiab load impedance txuas nrog nws, thiab yog tias lub load yog siab impedance, cov zis impedance ntawm lub hwj chim lim yuav tsum tsis tshua muaj zog, thiab yog tias lub hwj chim mov los yog cuam tshuam qhov impedance yog tsawg impedance, cov zis impedance ntawm lub lim yuav tsum siab kuj.
Yog hais tias lub hwj chim impedance los yog cuam tshuam qhov impedance tsis paub los yog hloov nyob rau hauv ib tug loj ntau yam, nws yog ib qhov nyuaj rau kom tau ruaj khov filtering yam ntxwv, thiaj li yuav tau lub lim muaj ib tug zoo kuj ruaj khov filtering yam ntxwv, yuav ua tau nyob rau hauv lub lim tswv yim thiab tso zis, ntawm tib lub sij hawm thiab ces ib tug ruaj resistor.
Plaub, lub lim yuav tsum muaj qee qhov kev ua haujlwm siab, raws li cov khoom siv hluav taws xob thiab kev cuam tshuam ntawm qhov ntsuas hluav taws xob los xaiv lub hwj chim lim, kom nws muaj qhov ntsuas siab txaus, kom ntseeg tau tias txhua qhov kev xav tau ua haujlwm tuaj yeem ua haujlwm tau zoo. , tuaj yeem tiv taus qhov cuam tshuam ntawm cov tswv yim instantaneous siab siab.Tsib, lub hwj chim lim tso cai rau qhov dhau los ua raws li qhov ntsuas tam sim no khiav tsis tu ncua hauv Circuit Court.
Lub siab ruaj khov tam sim no yuav ua rau qhov ntim thiab qhov hnyav ntawm EMI lim, thiab qhov qis qis tam sim no yuav txo qhov kev ntseeg siab ntawm EMI lim.Rau, lub hwj chim lim yuav tsum muaj lub zog txhua yam, cov qauv yooj yim, lub teeb yuag, me me, yooj yim rau nruab, nyab xeeb thiab txhim khu kev qha.
Lub sij hawm xa tuaj: Mar-30-2021
