Sib nqus nplhaib inductors yog ib qho ntawm feem ntau inductors, uas tuaj yeem muab faib ua ob pawg: hom hom inductors thiab txawv hom inductors. Daim ntawv no qhia txog magnetic nplhaib hom inductors.
Hom hom inductors, tseem hu ua hom hom choke coils. Nws feem ntau yog tsim los ntawm ob lub coils ntawm tib txoj kab uas hla ntawm tib lub xov tooj thiab tib lub xov tooj ntawm cov lem, tusyees thiab symmetrically mob nyob rau hauv tib lub nplhaib core. Common-hom inductors muaj kev cuam tshuam muaj zog ntawm cov teeb liab hom, tab sis yuav luag tsis cuam tshuam rau cov teeb liab sib txawv.
Txoj haujlwm ua haujlwm:
Thaum lub teeb liab hom hom (kev cuam tshuam teeb liab) dhau los ntawm inductor, lub sib nqus flux nyob rau hauv lub nplhaib sib nqus yog superimposed rau ib leeg, yog li muaj ib tug loj inductance thiab zoo inhibiting lub hom-hom teeb liab; Thaum lub coil ntws los ntawm qhov sib txawv hom teeb liab (lub teeb liab yuav tsum tau), cov hlau nplaum sib nqus hauv lub nplhaib sib nqus tshem tawm ib leeg, thiab yuav luag tsis muaj inductance, yog li cov teeb liab sib txawv tuaj yeem dhau mus yam tsis muaj kev cuam tshuam.
Tam sim no, cov khoom siv feem ntau siv rau lub nplhaib sib nqus ntawm hom inductor yog manganese zinc siab conductivity, thiab permeability yog 5K, 7K, 10K, 12K, 15K thiab lwm yam. Qhov siab dua qhov sib raug zoo permeability, qhov ntau dua qhov inductance nyob rau hauv tib lub sij hawm tig, tab sis qhov ruaj khov yog qhov tsis zoo, thiab inductance hloov pauv ntawm qhov kub thiab txias. Tam sim no, nyob rau hauv cov nqe lus ntawm siab permeability rings ua nyob rau hauv Tuam Tshoj, lub permeability yog kuj ruaj khov nrog 5K, 7K thiab 10K.
Ntxiv nrog rau manganese zinc siab conductivity, hom hom inductors siv ntau thiab ntau nanocrystalline thiab amorphous. Lawv permeability feem ntau yog siab dua 10K, qee qhov mus txog 20 ~ 30K, kev ua haujlwm ruaj khov, kev tsim cov hom inductor muaj qhov tshwj xeeb zoo. Nyob rau hauv cov ntaub ntawv ntawm tib inductance, kev siv nanocrystalline thiab amorphous magnetic nplhaib tuaj yeem txo tus naj npawb ntawm winding, txo tus nqi ntawm enameled hlau, thiab txo tus nqi ntawm phau ntawv winding.
Tsawg heev hom inductors, kuj ua los ntawm npib tsib xee-zinc, muaj ib tug permeability ntawm tsawg tshaj li 1500. Hom hom inductors ua los ntawm npib tsib xee thiab zinc muaj me me inductance, tab sis lawv muaj peev xwm ua hauj lwm ntawm kuj high zaus (ntau tshaj 100MHZ), thiab lawv. permeability tseem nyob ruaj khov, uas yog conducive rau high-frequency filtering.
Thaum winding hom inductors, lub kauj yuav tsum tau them sai sai rau cov txheej txheem yuav tsum tau ua. Piv txwv li, enameled hlau qhov txhab ntawm lub coil core yuav tsum tau ceev faj tsis txhob khawb ib leeg thiab puas lub nplhaib sib nqus, tiv thaiv luv luv Circuit Court ntawm lem thiab tsis zoo voltage kuj, thiab binary winding yuav siv tau rau cov khoom uas kuj ntev nyob ntawm tej; Lub kauj yuav tsum tau qhwv ntau li ntau tau nyob ib ncig ntawm ib txheej, txo cov kab mob parasitic, txhim khu kev tiv thaiv rau lub sijhawm overvoltage, ntau txheej coil khoom tuaj yeem muab tso rau hauv cov roj rwb thaiv tsev kom muaj peev xwm rwb thaiv tsev ...
Ntxiv nrog rau hom hom inductors nrog ob lub coils sib cais, peb feem ntau pom ob thiab mob hom inductors. Lub hauv paus ntsiab lus yog qhov zoo sib xws, tab sis nws tuaj yeem cuam tshuam cov suab nrov nrov hom teeb liab thiab qhov sib txawv ntawm cov suab nrov qis ib txhij, tsis txhob cuam tshuam cov suab nrov sib txawv hauv cov teeb liab ceev.
Thaum xaiv ib hom hom inductor, lub ntsiab hluav taws xob tsis zoo yuav tsum xav txog yog hom hom impedance, uas sib haum rau cov hom impedance ntawm kev khiav hauj lwm zaus, qhov loj dua qhov zoo dua. Nyob rau tib lub sijhawm, lub impedance zaus nkhaus kuj yog qhov ntsuas qhov ntsuas tseem ceeb, thiab kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov impedance attenuation ntawm qhov siab.
Rau qee qhov kev siv lub teeb liab siab ceev, qhov cuam tshuam ntawm qhov sib txawv hom impedance ntawm lub teeb liab yuav tsum tau txiav txim siab. Txawm li cas los xij, hauv kev ua haujlwm tiag tiag, rau qee lub sijhawm uas yuav tsum tau qis, nws tsis yooj yim rau cov tuam txhab lag luam los ntsuas cov hom impedance thiab txawv hom impedance, thiab feem ntau siv inductance thiab inductive tshuav nqi raws li lwm qhov ntsuas ntsuas.
Zuag qhia tag nrho, sib nqus nplhaib hom hom inductors muaj cov qauv yooj yim, muaj zog cua sov dissipation overcurrent muaj peev xwm, kev ua tau zoo heev hauv kev tiv thaiv hom teeb liab, kev ua haujlwm siab, thiab tsis muaj kev sib tw. Nws qhov tsis zoo yog tias lub nplhaib sib nqus aperture yog me me, qee cov khoom tsis yooj yim kom dhau lub nplhaib, qhov xav tau ntawm phau ntawv winding, cov nqi ua haujlwm siab, kev ua haujlwm tsawg, txwv qee qhov ntawm nws daim ntawv thov.