Kodi pali kusiyana kotani pakati pa inductor ndi maginito mikanda | KHALANI BWINO

Zitha kuwoneka kuchokera kumayendedwe amtundu wa impedance wa mikanda kuti ma frequency a transition point ndi otsika kuposa inductance, ndipo ma frequency a transition point ndi apamwamba kuposa kukana. Ntchito ya inductance ndikuwonetsa phokoso, pomwe kukana kumatenga phokoso ndikulisintha kukhala kutentha. Kodi ma inductors ndi maginito mikanda zikufanana bwanji? Kodi amasiyana bwanji? Tiyeni titsatire opanga ma inductor kuti timvetsetse!

Kusiyana pakati pa inductor ndi maginito bead

1. Masensa ndi zida zosungira mphamvu, ndipo mikanda ya maginito ndi zipangizo zosinthira mphamvu (zowononga). Zosefera zimatha kugwiritsa ntchito inductors ndi mikanda, koma ndi njira zosiyanasiyana. Kusefa kwa inductor kumasintha mphamvu yamagetsi kukhala mphamvu ya maginito, yomwe imakhudza dera m'njira ziwiri: potembenuza mphamvu yamagetsi kubwerera ku mphamvu yamagetsi, ndi kutulutsa kunja-monga EMI(EMI). Komanso, mphamvu yamagetsi imasinthidwa kukhala mphamvu ya kutentha popanda kusokoneza kwachiwiri kwa dera.

2. Sefayi ya inductor imakhala yabwino kwambiri mu bandi yotsika kwambiri, koma sefayo ikadutsa 50MHz, mkanda wa maginito umagwiritsa ntchito chigawo chake cha impedance kutembenuza phokoso lapamwamba kukhala mphamvu ya kutentha, ndipo wakwaniritsa cholinga chochotsa -phokoso la pafupipafupi kwathunthu.

3. Kuchokera ku mbali ya EMC(EMC), mikanda ya maginito imatha kusintha phokoso lapamwamba kwambiri kukhala mphamvu ya kutentha, kotero imakhala ndi mphamvu yotsutsa ma radiation. Amagwiritsa ntchito zida zotsutsana ndi EMI ndipo nthawi zambiri amagwiritsidwa ntchito kusefa zizindikiro za ogwiritsa ntchito. Zosefera zamphamvu za wotchi yothamanga kwambiri yomwe ili m'bwalo.

4. Pamene inductor ndi capacitor zimapanga fyuluta yotsika yodutsa, kuphatikiza kwa zigawo ziwirizi kungapangitse kudzikonda chifukwa zonsezo ndi zigawo zosungira mphamvu; Mikanda ya maginito ndi zida zowonongera mphamvu ndipo sizidzipangitsa kudzisangalatsa mukamagwira ntchito ndi ma capacitor.

5. Nthawi zambiri, magetsi opangira magetsi omwe amagwiritsidwa ntchito popangira magetsi ndi okwera kwambiri, choncho m'madera opangira magetsi omwe amafunikira panopa, monga momwe amagwiritsidwira ntchito kusefa mphamvu; Mikanda ya maginito nthawi zambiri imagwiritsidwa ntchito pazosefera zamagetsi zamtundu wa chip (komabe, pamsika pali kale mavoti akuluakulu).

6. Onse mikanda ya maginito ndi ma inductors ali ndi kukana kwa DC, pomwe kukana kwa DC kwa mikanda ya maginito ndikocheperako kuposa kusefa, kotero kusiyanasiyana kwa mikanda ya maginito kumakhala kochepa mukamagwiritsa ntchito kusefa mphamvu.

7. Pogwiritsa ntchito kusefa, mphamvu yogwiritsira ntchito inductor imakhala yochepa kusiyana ndi yomwe ikugwiritsidwa ntchito panopa, mwinamwake inductor singawonongeke, koma mtengo wa inductance udzakhala wokondera.

Malo odziwika bwino a inductor ndi maginito bead

1. Chovoteledwa panopa. Ngati pompopompo ya inductor ipitilira pakali pano, inductance idzacheperachepera, koma inductance siiwonongeka kwenikweni, ndipo maginito akugwira ntchito pakali pano amapitilira pakali pano, amayambitsa kuwonongeka kwa mikanda ya maginito.

2. DC kukana. Mukagwiritsidwa ntchito pamagetsi opangira magetsi, pali njira inayake pamzerewu, ngati dc kukana kwa inductor kapena magnetic bead palokha ndi yaikulu kwambiri, idzatulutsa kutsika kwa magetsi.

3. Pafupipafupi khalidwe pamapindikira. Zomwe zimapangidwira za mpira wolowetsa ndi maginito mpira zimamangiriridwa ndi makina opangira ma frequency a chipangizo. Kuti musankhe chipangizo choyenera muyenera kuyang'ana mosamala ma curve awa kuti musankhe chipangizo choyenera. Mukagwiritsidwa ntchito, samalani ndi ma frequency ake a resonant.

Pamwambapa ndikuyambitsa ma inductors ndi mikanda ya maginito, ngati mukufuna zambiri zama inductors, chonde lemberani akatswiri.