Njira yogwiritsira ntchito inductive maginito mphete | KHALANI BWINO

Kodi njira yogwiritsira ntchito inductive magnetic ring ndi chiyani? Kodi pali kusiyana kotani pakati pa zida za mphete za inductor maginito? Tiyeni tidziŵe pamodzi.

Mphete ya maginito ndi chinthu chomwe chimagwiritsidwa ntchito kwambiri poletsa kusokoneza pamabwalo amagetsi, chomwe chimakhala ndi zotsatira zabwino zopondereza pamaphokoso apamwamba kwambiri, omwe amafanana ndi fyuluta yotsika. Ikhoza kuthetsa bwino vuto la kuponderezedwa kwapamwamba kwambiri kwa mizere yamagetsi, mizere yowonetsera ndi zolumikizira, ndipo ili ndi ubwino wambiri, monga zosavuta kugwiritsa ntchito, zosavuta, zogwira mtima, zazing'ono ndi zina zotero. Kugwiritsa ntchito ferrite anti-interference core kupondereza kusokoneza kwa electromagnetic (EMI) ndi njira yotsika mtengo, yosavuta komanso yothandiza. Zakhala zikugwiritsidwa ntchito kwambiri pamakompyuta ndi zida zina zamagetsi zamagetsi.

Ferrite ndi mtundu wa ferrite womwe umakonzedwa pogwiritsa ntchito zida zapamwamba zamaginito kuti zilowetse chimodzi kapena zingapo za magnesium, zinki, faifi tambala ndi zitsulo zina pa 2000 ℃. Mu gulu lochepa lafupipafupi, anti-interference magnetic core imasonyeza kutsika kochepa kwambiri kwa inductive ndipo sikumakhudza kutumiza kwa zizindikiro zothandiza pa mzere wa deta kapena mzere wa chizindikiro. Mu gulu lapamwamba lafupipafupi, kuyambira 10MHz, kusokoneza kumawonjezeka, koma gawo la inductance limakhalabe laling'ono kwambiri, koma gawo lotsutsa limakula mofulumira. pakakhala mphamvu zambiri zomwe zimadutsa maginito, gawo lotsutsa limatembenuza mphamvu izi kukhala kugwiritsa ntchito mphamvu zotentha. Mwanjira imeneyi, fyuluta yotsika kwambiri imapangidwira, yomwe imatha kuchepetsa kwambiri phokoso la phokoso lapamwamba, koma kulepheretsa chizindikiro chochepa chothandizira kukhoza kunyalanyazidwa ndipo sikumakhudza ntchito yanthawi zonse ya dera. .

Momwe mungagwiritsire ntchito mphete ya maginito ya anti-interference inductance:

1. Ikani mwachindunji pamagetsi kapena mulu wa mizere yolumikizira. Pofuna kuonjezera kusokoneza ndi kuyamwa mphamvu, mukhoza kuzungulira kangapo mobwerezabwereza.

2. Anti-jamming maginito mphete yokhala ndi clip yokwera ndiyoyenera kulipidwa kuponderezedwa kwa anti-jamming.

3. Ikhoza kutsekedwa mosavuta pa chingwe cha mphamvu ndi mzere wa chizindikiro.

4. Flexible ndi reusable unsembe.

5. Mtundu wa khadi lodzipangira nokha umakhazikika, zomwe sizimakhudza chithunzi chonse cha zipangizo.

Kusiyana pakati pa Zida Zosiyanasiyana za Inductance Magnetic Ring

Mtundu wa mphete ya maginito nthawi zambiri umakhala wakuda, ndipo pamwamba pa mphete ya maginito imakhala ndi tinthu tating'onoting'ono, chifukwa ambiri aiwo amagwiritsidwa ntchito polimbana ndi kusokoneza, kotero iwo samapaka utoto wobiriwira. Zoonadi, gawo laling'ono limagwiritsidwanso ntchito popanga ma inductors, ndipo amawapopera zobiriwira kuti akwaniritse bwino komanso kupewa kuvulaza waya wa enamelled momwe angathere. Mtundu wokhawokha ulibe chochita ndi ntchito. Ogwiritsa ntchito ambiri nthawi zambiri amafunsa, momwe angasiyanitsire mphete za maginito zapamwamba kwambiri ndi mphete zotsika kwambiri za maginito? Nthawi zambiri, mphete yocheperako ya maginito imakhala yobiriwira ndipo mphete yothamanga kwambiri ndi yachilengedwe.

Nthawi zambiri zimayembekezereka kuti permeability μ I ndi resistivity ρ ndizokwera, pomwe coercivity Hc ndi kutayika kwa PC ndizochepa. Malinga ndi magwiritsidwe osiyanasiyana, pali zofunika zosiyanasiyana za kutentha kwa Curie, kukhazikika kwa kutentha, kuchepetsa kuchepa kwapakati komanso kutayika kwapadera.

Zotsatira zazikulu ndi izi:

(1) Manganese-zinc ferrites amagawidwa kukhala ma ferrite apamwamba kwambiri komanso ma ferrite otsika kwambiri (omwe amadziwikanso kuti ma ferrite amphamvu). Khalidwe lalikulu la permeability mkulu mn-Zn ferrite ndi mkulu permeability.

Nthawi zambiri, zida zokhala ndi μ I ≥ 5000 zimatchedwa zida zapamwamba, ndipo μ I ≥ 12000 ndizofunikira.

Mn-Zn high-frequency and low-power ferrite, yomwe imadziwikanso kuti ferrite yamphamvu, imagwiritsidwa ntchito muzinthu zamagetsi zamagetsi. zofunika kuchita ndi: mkulu permeability (nthawi zambiri chofunika μ I ≥ 2000), mkulu Curie kutentha, mkulu zikuoneka kachulukidwe, mkulu machulukitsidwe maginito induction intensity ndi maginito core imfa pa otsika pafupipafupi.

(2) Zida za Ni-Zn ferrite, pamtunda wocheperako pansi pa 1MHz, machitidwe a NiZn ferrites sali abwino ngati a MnZn system, koma pamwamba pa 1MHz, chifukwa cha porosity yake yapamwamba komanso resistivity yapamwamba, ndi yabwino kuposa Dongosolo la MnZn kukhala chinthu chabwino chofewa maginito pakugwiritsa ntchito pafupipafupi. Resistivity ρ ndi yokwera kwambiri mpaka 108 ω m ndipo kutayika kwafupipafupi kumakhala kochepa, kotero ndikoyenera kwambiri pafupipafupi 1MHz ndi 300MHz, komanso kutentha kwa Curie kwa zinthu za NiZn ndipamwamba kuposa MnZn,Bs mpaka 0.5T 10A/ m HC ikhoza kukhala yaying'ono ngati 10A/m, kotero ndiyoyenera mitundu yonse ya ma inductors, ma transfoma, ma coils a fyuluta ndi ma coils otsamwitsa. Ma ferrite apamwamba kwambiri a Ni-Zn ali ndi bandwidth yotakata komanso kutayika kochepa, motero amagwiritsidwa ntchito ngati ma electromagnetic interference (EMI) ndi ma radio frequency interference (RFI) cores pophatikiza kusokoneza kwamagetsi kwamagetsi (EMI) ndi zida zapamtunda. Mkulu pafupipafupi mphamvu ndi odana kusokoneza. Ma ferrite amphamvu a Ni-Zn atha kugwiritsidwa ntchito ngati zida za RF burodibandi kuti azindikire kufalikira kwa mphamvu ndikusintha kwamphamvu kwa ma siginecha a RF mugulu lalikulu, okhala ndi malire otsika a ma kilohertz angapo komanso malire apamwamba a masauzande a megahertz. Zinthu za Ni-Zn ferrite zomwe zimagwiritsidwa ntchito mu chosinthira cha DC-DC zimatha kukulitsa ma frequency osinthira magetsi ndikuchepetsanso kuchuluka ndi kulemera kwa chosinthira chamagetsi.

Common maginito mphete-pali kwenikweni mitundu iwiri ya mphete maginito onse kugwirizana mzere, wina ndi faifi tambala-zinki ferrite maginito mphete, wina ndi manganese-zinki ferrite maginito mphete, iwo amagwira ntchito zosiyanasiyana.

Ma ferrite a Mn-Zn ali ndi mawonekedwe otsika kwambiri komanso kachulukidwe kakang'ono ka flux, ndipo amakhala ndi zotayika zochepa pomwe ma frequency ndi otsika kuposa 1MHz.

Zomwe zili pamwambazi ndikuyambitsa maginito maginito, ngati mukufuna kudziwa zambiri za ma inductors, chonde omasuka kulankhula nafe.