Qhov txawv ntawm Amorphous Magnetic Ring thiab Ferrite Core
Oct 14, 2025
Tso lus
Qhov txawv ntawm Amorphous Magnetic Ring thiab Ferrite Core
Amorphous magnetic rings thiab ferrite cores yog ob qho tib si mos sib nqus cov ntaub ntawv siv hauv transformers, chokes, tam sim no transformers thiab lim, tab sis lawv txawv sharply nyob rau hauv permeability, saturation flux ceev, core poob, kub cwj pwm thiab nqi. Kab lus no muab piv rau lawv nrog cov ntaub ntawv pob zeb kom koj tuaj yeem xaiv cov khoom siv zoo rau koj daim ntawv thov.
Cov ntaub ntawv keeb kwm yav dhau
Lub nplhaib sib nqus amorphous yog tsim los ntawm cov hlau nplaum sai heev -raws li alloy ribbon (kwv yees 20-}30 um tuab) mob rau hauv toroid. Ferrite yog sintered ceramic ntawm hlau oxide nrog manganese-zinc lossis nickel-zinc compounds. Cov amorphous alloy muaj cov qauv atomic tsis zoo, uas tshem tawm cov magnetocrystalline anisotropy thiab muab cov permeability siab heev.
Qhov tseem ceeb Parameter sib piv
| Parameter | Amorphous nplhaib | Ferrite tub ntxhais |
|---|---|---|
| Pib permeability | 10,000-100,000+ | 1,000-15,000 (MnZn) |
| Saturation flux ceev | 1.2-1.56 T | 0.3-0.5 T |
| Curie kub | ~ 400 ° C | 100-250 ℃ (MnZn) |
| Core poob ntawm cov zaus | Tsawg mus txog kaum tawm kHz | Tsawg ntawm MHz ntau yam (NiZn) |
| Hluav taws xob resistivity | ~130 uOhm-cm | 100 k -100 M Ohm-cm |
| Magnetostriction | < 30 x 10-6 | Tsawg |
| Tus nqi txheeb ze | Siab dua | qis |
Qhov txawv txhais li cas hauv kev xyaum
Permeability thiab Loj
Vim hais tias amorphous rings ncav cuag thawj permeability siab tshaj 10,000, ib tug ntau me me tub ntxhais ua tiav qhov yuav tsum tau inductance piv nrog ferrite. Qhov no tseem ceeb nyob rau hauv tam sim no transformers thiab ntau - hom chokes qhov chaw txwv.
Saturation thiab DC Bias
Amorphous cov khoom saturates ntawm 1.2-1.56 T, kwv yees li peb mus rau plaub zaug ferrite. Cheebtsam uas nqa DC bias tam sim no lossis ib ntus overcurrent tsis tshua muaj peev xwm saturate nrog cov tub ntxhais amorphous, uas ua rau inductance ruaj khov.
Losses thiab Zaus
Amorphous rings excel los ntawm kab ntau zaus mus txog kaum ntawm kilohertz, nrog qis qis dua silicon steel thiab piv los yog zoo dua poob tshaj MnZn ferrite ntawm cov flux densities. Ntawm lub xov tooj cua zaus (ntau tshaj 1 MHz), NiZn ferrite tseem yog qhov kev xaiv zoo vim tias kev poob qis hauv cov kab hluav taws xob yuav nce.
Kub stability
Ferrite permeability poob qis thaum kub nce mus txog Curie point thiab tuaj yeem hloov tau ntau dua 100% dhau qhov kev ua haujlwm. Amorphous alloy khaws cov khoom sib nqus kom ruaj khov, nrog kev hloov pauv feem ntau hauv qab 10% thoob plaws qhov kub thiab txias.
Daim ntawv qhia kev
Tam sim no transformers thiab residual tam sim no li: amorphous rings muab siab raug thiab linearity nrog ib tug me me bore.
Common- hom chokes thiab EMI lim: amorphous rings attenuate suab nrov ntawm 10 kHz mus rau 1 MHz nrog tsawg tig.
Hloov fais fab mov transformers: ferrite yog nyiam tshaj 100 kHz vim nws siab heev resistivity.
Tsawg- cov neeg siv khoom siv lim dej: MnZn ferrite tseem yog qhov kev xaiv pheej yig uas qhov kev poob tau txais.
FAQ
Yam khoom twg muaj ntau dua permeability?
Amorphous rings, nrog thawj permeability feem ntau siab dua 10,000, piv rau 1,000-15,000 rau MnZn ferrite thiab qis dua rau NiZn ferrite.
Vim li cas ferrite saturate yooj yim dua?
Ferrite's saturation flux ceev tsuas yog 0.3-0.5 T, yog li DC bias lossis siab flux swings thawb nws mus rau hauv saturation sai dua amorphous alloy ntawm 1.2-1.56 T.
Puas yog amorphous ib txwm zoo dua ferrite?
Tsis yog saum toj no txog 1 MHz, ferrite lub siab resistivity yeej; amorphous rings kuj raug nqi ntau dua, yog li qhov kev xaiv nyob ntawm qhov zaus, DC kev tsis ncaj ncees thiab nyiaj txiag.
Cov nplhaib amorphous puas tuaj yeem hloov ferrite hauv ib qho -hom choke?
Feem ntau yog, nrog tsawg dua lem thiab ib tug me me core rau tib impedance, tab sis xyuas cov suab nrov zaus ntau thiab cov muaj bore loj ua ntej.
Kuv yuav kuaj li cas cov tub ntxhais uas haum kuv lub voj voog?
Ntsuas qhov impedance los yog inductance piv rau zaus nrog qhov tseeb DC kev tsis ncaj ncees, thiab sib piv cov tub ntxhais poob ntawm qhov khiav hauj lwm flux ceev thiab kub.