Chip inductors, tseem hu ua lub zog inductors, yog ib qho ntawm cov khoom siv feem ntau siv hauv cov khoom siv hluav taws xob, muaj cov khoom siv me me, zoo, muaj zog cia thiab tsis muaj zog.Nws yog feem ntau yuav hauv PCBA factories.Thaum xaiv lub nti inductor, qhov kev ua haujlwm tsis zoo (xws li inductance, ntsuas tam sim no, qhov zoo tshaj plaws, thiab lwm yam) yuav tsum tau txiav txim siab.
I. Chip inductor kev ua haujlwm tsis zoo
1. Lub inductance ntawm tus yam ntxwv du: inductor vim ib puag ncig kub hloov pauv 1 ℃ tsim los ntawm inductance ntawm kev hloov kho ntawm △ L / △ t thiab thawj inductance L tus nqi piv rau tus nqi ntawm inductor kub system a1, a1 = △ L / L△ t.Ntxiv rau qhov inductor kub coefficient los txiav txim siab nws qhov kev ruaj ntseg, tab sis kuj tseem yuav tsum tau them sai sai rau qhov inductance ntawm cov neeg kho tshuab kev co thiab kev laus los ntawm kev hloov.
2. Kev ua haujlwm ntawm lub zog hluav taws xob thiab cov av noo tiv thaiv kev ua haujlwm: Rau cov khoom siv hluav taws xob uas muaj zog tiv thaiv hluav taws xob yuav tsum tau xaiv los siv cov khoom siv pob los tiv thaiv qhov hnyav ntawm qhov hluav taws xob siab, feem ntau yog qhov zoo tshaj plaws voltage tiv thaiv inductive cov cuab yeej, kev tiv thaiv dej noo kuj zoo dua. .
3. Inductance thiab qhov tso cai sib txawv: inductance yog hais txog cov ntaub ntawv nominal ntawm inductance pom los ntawm cov zaus uas yuav tsum tau ua los ntawm cov khoom siv thev naus laus zis.Chav tsev ntawm inductance yog Henry, millihen, microhen, nanohen, kev sib txawv yog muab faib ua: F qib (± 1%);G qib (± 2%);H qib (± 3%);J qib (± 5%);K qib (± 10%);L qib (± 15%);M qib (± 20%);P qib (± 25%);N theem (± 30%);feem ntau siv yog J, K, M qib.
4. Kev kuaj xyuas zaus: kev kuaj xyuas qhov tseeb ntawm tus nqi ntawm inductor L, Q, DCR qhov tseem ceeb, yuav tsum xub ntxiv alternating tam sim no rau inductor raug kuaj raws li cov kev cai, qhov ze rau qhov zaus ntawm tam sim no mus rau qhov tseeb ua haujlwm zaus ntawm qhov inductor no. , qhov zoo tagnrho.Yog hais tias tus nqi inductor yog me me raws li qib nahum, qhov zaus ntawm cov khoom siv los ntsuas yuav tsum tau kuaj xyuas kom ncav cuag 3G.
5. DC tsis kam: Ntxiv nrog rau cov khoom siv hluav taws xob inductor tsis kuaj DC tsis kam, qee qhov khoom siv inductor raws li qhov xav tau los qhia qhov siab tshaj DC tsis kam, feem ntau qhov me dua qhov xav tau.
6. kev ua haujlwm zoo tam sim no: feem ntau siv 1.25 mus rau 1.5 npaug ntawm qhov ntsuas tam sim no ntawm inductor raws li qhov siab tshaj plaws ua haujlwm tam sim no, feem ntau yuav tsum tau derated los ntawm 50% siv kom muaj kev nyab xeeb thiab txhim khu kev qha.
II.Chip inductor daim ntawv foos
Xaiv cov inductors rau kev siv fais fab portable, peb lub ntsiab lus tseem ceeb tshaj plaws los txiav txim siab yog: qhov loj me, qhov loj me, qhov loj thib peb lossis qhov loj me.
Lub Circuit Court board cheeb tsam ntawm lub xov tooj ntawm tes yog nruj heev thiab muaj nuj nqis, tshwj xeeb tshaj yog yog li muaj ntau yam nta xws li MP3 players, TV thiab video ntxiv rau lub xov tooj.Kev ua haujlwm ntau ntxiv kuj tseem yuav ua rau kev siv roj teeb tam sim no.Yog li ntawd, cov modules uas yav tas los tau siv los ntawm cov kab hluav taws xob regulators lossis txuas ncaj qha rau lub roj teeb xav tau kev daws teeb meem zoo dua.Thawj kauj ruam mus rau qhov kev daws teeb meem zoo dua yog kev siv lub tshuab hluav taws xob sib nqus.Raws li lub npe implies, ib tug inductor yuav tsum tau nyob rau hauv no point.
Cov ntsiab lus tseem ceeb ntawm tus inductor, ntxiv rau qhov loj me, yog tus nqi inductance ntawm kev hloov zaus, DC impedance (DCR) ntawm lub kauj, ntsuas saturation tam sim no, ntsuas rms tam sim no, AC impedance (ESR), thiab Q-factor.Nyob ntawm daim ntawv thov, kev xaiv ntawm inductor hom - shielded lossis unshielded - tseem ceeb heev.
Chip inductors zoo nkaus li zoo ib yam, thiab nws tsis tuaj yeem pom qhov zoo.Qhov tseeb, koj tuaj yeem ntsuas qhov inductance ntawm nti inductors nrog lub multimeter, thiab qhov dav dav inductance ntawm cov khoom tsis zoo nti inductors yuav tsis ua raws li qhov yuav tsum tau ua, thiab qhov yuam kev yuav loj dua.
Post lub sij hawm: Dec-10-2021