Thaum nkag siab capinitors, ib qho ntawm cov tsis tseem ceeb los xav txog yog ESR (sib npaug series tiv thaiv). ESR yog ib qho kev xam pom tus yam ntxwv ntawm txhua lub luag haujlwm thiab ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab lawv cov kev ua tau zoo tag nrho. Hauv tsab xov xwm no, peb yuav tshawb txog kev sib raug zoo ntawm ESR thiab Capacitors, tsom qhia tshwj xeeb rauTsawg-estr mLCCS(multilayer ceramic canticacitors).
ESR tuaj yeem txhais tau tias yog qhov tsis kam uas tshwm sim hauv koob nrog lub capacitance ntawm lub capacitor vim tsis yog tus cwj pwm tsis yog tus cwj pwm tsis yog tus cwj pwm. Nws tuaj yeem xav txog raws li cov kev tawm tsam uas txwv qhov ntws ntawm tam sim no los ntawm tus capacitor. ESR yog cov yam ntxwv tsis txaus ntseeg vim tias nws ua rau lub zog ua kom sov li tshav kub, yog li txo qhov peev xwm ntawm lub capacitor thiab cuam tshuam nws kev ua tau zoo.
Yog li, ESR muaj qhov cub? Cia khawb rau cov ntsiab lus.
1. Lub hwj chim Dissipation: Thaum qhov tam sim no ntws los ntawm lub capacitor, lub zog poob rau hauv daim ntawv cua sov vim yog qhov kev tawm tsam tau muab los ntawm ESR. Lub hwj chim tsis txaus no tuaj yeem ua rau kub ntxiv, uas tuaj yeem cuam tshuam kev cuam tshuam rau tag nrho cov kev ua tau zoo thiab kev pabcuam lub neej ntawm lub capacitor. Yog li, txo tus ESR yog qhov tseem ceeb los txo cov zog hluav taws xob thiab ua haujlwm kom ntseeg tau ntawm lub capacitor.
2. Voltage ripple: Hauv cov ntawv thov uas tau siv rau kev lim thiab cov laj thawj smoothing, esr ua ib qho tseem ceeb. ER tsim tawm cov hluav taws xob ua hluav taws xob los yog hloov pauv thaum lub voltage hla tus capacitor hloov sai. Cov ripples tuaj yeem ua rau cov khoom lag luam hluav taws xob nrog thiab cuam tshuam, cuam tshuam qhov zoo ntawm cov paib tawm suab. Tsis muaj estr capacitors tau tsim tshwj xeeb los txo cov voltage thiab muab cov kab hluav taws xob.
3. Hloov ceev: capacitors feem ntau siv nyob rau hauv cov hluav taws xob hluav taws xob nrog cov haujlwm ceev ceev. High ERR tuaj yeem qeeb qeeb hauv Circuit Court qhov hloov nrawm, ua rau qeeb thiab txo kev ua haujlwm ua haujlwm. Tsis muaj esR capacitors, ntawm qhov tod tes, muab cov nqi rov qab ceev dua thiab cov nqi tawm, ua rau lawv zoo tshaj plaws rau cov ntawv thov uas yuav tsum tau hloov nrawm.
4. Cov lus teb: ESR kuj tseem muaj ib qho cuam tshuam tseem ceeb rau cov zaus teb ntawm lub capacitor. Nws qhia kev cuam tshuam uas hloov pauv nrog ntau zaus. High ESR Capitors nthuav qhia ntau dua cov impedance nyob rau ntau zaus, txwv lawv qhov kev ua tau zoo hauv cov ntawv thov ntau. Tsis muaj estr Capitors muaj qis dua kev cuam tshuam hla kev dav dav thiab muaj pov thawj kom muaj txiaj ntsig zoo hauv qhov xwm txheej no.
Los daws cov kev cov nyom uas yog los ntawm ESR,Tsawg-estr mLCCStau dhau los ua neeg nrov nyob rau hauv xyoo tsis ntev los no. Cov MLCCs no yog tsim cov ntaub ntawv siab thiab tsim cov tswv yim kom ua tiav cov txiaj ntsig zoo tshaj plaws piv rau cov peev xwm kev siv hluav taws xob. Lawv cov lus teb tau zoo dua, qis siv hluav taws xob thiab kev siv hluav taws xob kom zoo rau lawv cov khoom siv hluav taws xob suav nrog cov khoom siv fais fab, lim thiab hla kev.
Hauv cov ntsiab lus, ESR yog tus yuam sij ntsuas uas cuam tshuam rau capacitor kev ua tau zoo. Nws txiav txim siab tus capacitor lub hwj chim dissipation, voltage ripple, hloov nrawm, thiab cov lus teb ntau. Tsawg Esr MLCCS tau tshwm sim los ua kev daws teeb meem los txo cov kev cov nyom cuam tshuam nrog ESR HIR, muab cov khoom siv hluav taws xob muaj txiaj ntsig zoo ntawm ntau yam ntawm cov khoom siv hluav taws xob thiab cov hluav taws xob.
Lub Sijhawm Post: Sep-27-2023