SMD inductance Cheebtsam yog siv nyob rau hauv ib tug me me Circuit Court. Lawv tsuas yog siv rau ntawm qhov kawg ntawm cov khoom siv hluav taws xob tsawg DC tswj cov khoom siv hluav taws xob. Lawv tuaj yeem siv ua ke nrog cov lim capacitors los tsim π-shaped lim circuit ntawm CLC. . Cov ntsiab lus inductive yog tsim los ntawm ib lub kauj, qee qhov muaj cov tub ntxhais sib nqus (loj inductance), chav tsev feem ntau qhia hauv μH thiab mH, thiab cov nqi tam sim no yog ob peb milliamps rau ntau pua milliamps.
Dab tsi yog cov txheej txheem kev txheeb xyuas ntawm SMD inductors? SMD Shielded Power Inductor Hoobkas los qhia rau koj.
SMD inductor identification txoj kev, SMD inductors muaj nyob rau hauv round, square thiab rectangular ntim cov ntaub ntawv, thiab cov xim feem ntau yog dub. Nrog hlau core inductors (los yog ncig inductors), nws yog ib qho yooj yim los txheeb xyuas los ntawm cov tsos. Txawm li cas los xij, qee cov duab plaub inductors zoo li nti resistors raws li qhov pom. Daim ntawv lo ntawm cov nti inductor ntawm lub rooj tsav xwm hauv Circuit Court los ntawm cov chaw tsim khoom inverter yog cim nrog lo lus L. Cov kev ua haujlwm ntawm cov inductor muaj xws li inductance, Q tus nqi (zoo tshaj), DC tsis kam, ntsuas tam sim no, nws tus kheej resonant zaus, thiab lwm yam. , tab sis qhov luaj li cas ntawm cov nti inductor yog txwv, thiab feem ntau ntawm lawv tsuas yog cim nrog lub inductance, thiab lwm yam tsis muaj cim, thiab feem ntau yog Indirect labeling txoj kev - daim ntawv lo rau lub cev ntawm lub nti inductor tsuas yog ib feem ntawm lub cov ntaub ntawv ntawm tag nrho cov specification thiab qauv, uas yog, feem ntau ntawm nws tsuas yog cov ntaub ntawv inductance.
1. SMD inductor txheeb xyuas txoj kev:
1) Los ntawm cov tsos, xws li ib tug square los yog voj inductor nrog ib tug sib nqus core, lub ntim yog me ntsis loj, thiab cov hlau nplaum core thiab coil yuav pom;
2) Qee cov nti inductors zoo ib yam li cov nti resistors hauv qhov tsos, tab sis tsis muaj cov lej thiab cov ntawv cim, tsuas yog lub voj voog me me, uas txhais tau tias cov khoom siv inductance;
3) Cov naj npawb ntawm cov khoom hauv Circuit Court feem ntau cim nrog tsab ntawv L, xws li L1, DL1, thiab lwm yam.
4) Muaj cov ntawv cim inductance, xws li 100.
5) AC tsis kam ntawm qhov zoo tagnrho inductor yog loj, thaum lub DC tsis kam yog xoom. Qhov ntsuas ntsuas tus nqi ntawm cov khoom inductive yog qhov tsawg heev, nrog tus nqi tiv thaiv zero ohms. Nrog kev soj ntsuam thiab kev ntsuas (txoj hauj lwm thiab kev ua haujlwm hauv Circuit Court), nws tuaj yeem paub qhov txawv ntawm cov khoom siv hluav taws xob los yog chip inductor, thiab txiav txim siab cov khoom siv inductive.
6) Siv cov khoom siv tshwj xeeb inductance tester kom tshem tawm cov khoom siv los ntawm Circuit Court thiab ntsuas nws inductance.
2. Kev hloov pauv tsis raug:
1) Cov khoom ntawm tib hom tuaj yeem raug tshem tawm ntawm lub rooj tsav xwm khib nyiab thiab hloov pauv
2) Ua ntej txiav txim siab qhov inductance thiab circulating tus nqi tam sim no, hloov nws nrog cov coj zoo tib yam inductance Cheebtsam, thiab kho lawv zoo
3) Self-winding, ua inductance hloov, muaj qee yam nyuaj hauv kev ua haujlwm
4) Yog tias tsis muaj qhov cuam tshuam rau kev ua haujlwm hauv Circuit Court, kev kho thaum muaj xwm txheej ceev tuaj yeem ua rau luv luv
Pom zoo Chip Inductors uas ntau tus neeg xav tau
Yuav ua li cas xaiv tus inductor raws li koj xav tau
Thaum xaiv cov khoom, ib txwm xaiv cov khoom raws li kev xav tau sab nraud. Tib yam muaj tseeb rau Integrated molding nti inductance , koj yuav tsum xav txog cov yam tseem ceeb, thiab tom qab ntawd xaiv qhov tsim nyog ib-thooj nti inductors, shielded nti inductors, thiab nti fais fab inductors. Muaj ntau yam uas cuam tshuam rau cov nti inductor. Cia peb tham txog yuav ua li cas xaiv lub nti inductor raws li qhov xav tau.
1. Xaiv cov inductor raws li qhov xav tau
Thaum xaiv ib lub nti inductor rau daim ntawv thov lub zog portable, peb lub ntsiab lus tseem ceeb yuav tsum tau xav txog: qhov loj thiab qhov loj me, thiab qhov thib peb yog qhov loj. Circuit board qhov chaw hauv xov tooj ntawm tes yog nyob ntawm tus nqi, tshwj xeeb tshaj yog cov haujlwm xws li cov players, TVs thiab video ntxiv rau hauv xov tooj. Kev nce hauv kev ua haujlwm kuj tseem yuav ua rau lub zog tam sim no ntawm lub roj teeb. Yog li ntawd, cov modules uas ib txwm siv los ntawm cov kab hluav taws xob regulators lossis txuas ncaj qha rau cov roj teeb yuav tsum muaj kev daws teeb meem ntau dua. Ib kauj ruam mus rau qhov kev daws teeb meem siab dua yog siv lub tshuab hluav taws xob sib nqus.
Ntxiv rau qhov loj me, cov txheej txheem tseem ceeb ntawm inductance yog qhov inductance tus nqi ntawm qhov hloov zaus, DC impedance ntawm lub kauj, qhov ntxiv saturation tam sim no, ntxiv RMS tam sim no, kev sib txuas lus impedance ESR thiab qhov tseem ceeb. Nyob ntawm daim ntawv thov, nws tseem ceeb heev uas qhov kev xaiv ntawm inductor hom yog shielded los yog unshielded.
Zoo ib yam li DC bias nyob rau hauv lub capacitor, Vendor A's 2.2µH inductor tej zaum yuav txawv radically txawv ntawm Vendor B's. Kev sib raug zoo ntawm tus nqi inductance thiab DC tam sim no ntawm cov nti inductor nyob rau hauv qhov kub thiab txias yog qhov nkhaus tseem ceeb heev, uas yuav tsum tau txais los ntawm cov chaw tsim khoom. Qhov ntxiv saturation tam sim no (ISAT) tuaj yeem pom ntawm qhov nkhaus no. ISAT feem ntau txhais tau tias yog qhov poob ntawm tus nqi inductance. DC tam sim no thaum tus nqi yog 30[[%]] ntawm tus nqi ntxiv. Qee tus inductor manufacturers tsis muaj ISAT li niaj zaus. Tej zaum lawv yuav muab DC tam sim no thaum qhov kub thiab txias yog 40 ° C siab dua qhov kub ntawm qhov nruab nrab.
Thaum lub zaus hloov pauv ntau dua 2MHz, nws yuav tsum tau them nyiaj tshwj xeeb rau kev sib txuas lus ntawm inductor. ISAT thiab DCR ntawm cov inductors ntawm cov tuam txhab sib txawv tau teev tseg hauv cov qauv kev qhia tshwj xeeb yuav muaj kev sib txuas lus sib txawv ntawm qhov hloov zaus, ua rau pom tseeb lub zog hauv lub teeb. txawv. Qhov no yog qhov tseem ceeb rau kev txhim kho lub roj teeb lub neej hauv lub tshuab hluav taws xob portable, uas siv feem ntau ntawm lawv lub sijhawm pw tsaug zog, standby, lossis hom qis zog.
Txij li cov chip inductor manufacturers tsis tshua muab ESR thiab Q yam ntaub ntawv, cov neeg tsim khoom yuav tsum nug lawv rau nws. Kev sib raug zoo ntawm cov inductance thiab tam sim no muab los ntawm cov chaw tsim khoom yog feem ntau txwv rau 25 ° C, yog li cov ntaub ntawv cuam tshuam nyob rau hauv qhov ntsuas kub yuav tsum tau txais. Qhov phem tshaj plaws yog feem ntau 85 ° C.
Xav nyeem
Specializing nyob rau hauv zus tau tej cov ntau hom xim nplhaib inductors, beaded inductors, ntsug inductors, kos inductors, thaj inductors, bar inductors, ntau hom coils, high-zaus transformers thiab lwm yam magnetic Cheebtsam.
Post lub sij hawm: Sep-02-2022