Cov yam ntxwv ntawm cov hmoov core yog raws li nram no:
Sib nqus hmoov core
Magnetic hmoov core yog ib hom mos magnetic khoom tsim los ntawm kev sib xyaw ferromagnetic hmoov thiab insulating nruab nrab. Txij li thaum cov ferromagnetic hais me me heev (0.5 mus rau 5 microns siv nyob rau hauv high zaus) thiab yog sib cais los ntawm non-sib nqus hluav taws xob insulating zaj duab xis cov ntaub ntawv, ntawm ib sab, eddy tam sim no yuav raug rho tawm, thiab cov khoom yog haum rau ntau zaus; ntawm qhov tod tes, vim hais tias qhov sib txawv ntawm ob qho tib si ua rau cov khoom uas tsis tshua muaj hlau nplaum permeability thiab qhov sib nqus permeability; thiab vim hais tias cov particle loj me me, qhov tshwm sim ntawm daim tawv nqaij yeej tsis tshwm sim, thiab kev hloov ntawm magnetic permeability nrog zaus yog qhov ruaj khov. Feem ntau yog siv rau high zaus inductors. Kev ua tau zoo ntawm cov hlau nplaum hlau nplaum feem ntau yog nyob ntawm qhov sib nqus permeability ntawm cov khoom siv hmoov, qhov loj thiab cov duab ntawm cov hmoov, lawv cov khoom ntim, cov ntsiab lus ntawm qhov nruab nrab insulating, molding siab thiab cov txheej txheem kev kho cua sov.
Feem ntau siv hlau nplaum hmoov cores yog hlau hmoov cores, permalloy hmoov cores thiab hlau-silicon-aluminium hmoov cores.
Cov mis laij lej ntawm qhov ua tau zoo permeability μe thiab inductance ntawm cov tub ntxhais sib nqus yog: μe=DL / 4N2S × 109
Ntawm lawv: D yog qhov nruab nrab txoj kab uas hla ntawm cov tub ntxhais hlau nplaum (cm), L yog qhov inductance (sib qhia), N yog tus naj npawb ntawm winding lem, thiab S yog qhov zoo ntawm qhov chaw sib nqus ntawm cov tub ntxhais sib nqus (cm2).
Hlau hmoov core
Feem ntau siv hlau hmoov cores yog tsim los ntawm carbon-based ferromagnetic hmoov thiab resin carbon-based ferromagnetic hmoov. Tus nqi qis tshaj ntawm cov hmoov cores. saturation magnetic induction tus nqi yog nyob ib ncig ntawm 1.4T; permeability ntawm 22 mus rau 100; thawj permeability μi muaj kev ruaj ntseg zoo nrog kev hloov pauv zaus; DC tam sim no superposition kev ua tau zoo; tab sis qhov poob yog siab ntawm high zaus.
Permalloy hmoov core
Permalloy hmoov cores feem ntau suav nrog molybdenum permalloy hmoov cores (MPP) thiab siab sib nqus flux hmoov cores (High Flux).
MPP
Nws yog tsim los ntawm 81% Ni, 2% Mo thiab Fe hmoov. Cov yam ntxwv tseem ceeb yog: saturation magnetic induction siv tus nqi yog li 7500Gs; qhov sib nqus permeability ntau, los ntawm 14 txog 550; nws muaj qhov poob qis tshaj plaws hauv cov hmoov sib nqus core; zoo heev kub stability, dav siv nyob rau hauv qhov chaw khoom, khoom siv sab nraum zoov, thiab lwm yam .; magnetic Lub stretching coefficient yog nyob ze rau xoom, thiab tsis muaj suab nrov yog generated thaum ua hauj lwm ntawm txawv frequencies. Feem ntau siv nyob rau hauv qhov zoo tshaj plaws Q lim hauv qab 300kHz, inductive load coils, resonant circuits, feem ntau siv nyob rau hauv LC circuits nrog siab kub stability, tso zis inductors, lub hwj chim factor them circuits, thiab lwm yam.
Nws yog feem ntau siv nyob rau hauv AC circuits, thiab cov hmoov core yog kim tshaj plaws.
Lub siab sib nqus flux hmoov core HF yog tsim los ntawm 50 feem pua Ni thiab 50 feem pua Fe hmoov. Cov yam ntxwv tseem ceeb yog: saturation magnetic induction siv tus nqi yog nyob ib ncig ntawm 15000Gs; qhov sib nqus permeability ntawm 14 txog 160; nws muaj qhov siab tshaj plaws sib nqus induction siv thiab lub siab tshaj plaws DC bias peev xwm ntawm cov hmoov sib nqus cores; lub magnetic core yog me me. Nws yog tsuas yog siv nyob rau hauv kab lim, AC inductors, tso zis inductors, lub hwj chim kho circuits, thiab lwm yam. Nws yog feem ntau siv nyob rau hauv DC circuits, thiab feem ntau yog siv nyob rau hauv siab DC bias, siab DC thiab tsawg AC. Tus nqi qis dua MPP.
Kool Mμ Cores
FeSiAl hmoov core yog tsim los ntawm 6% Al, 9% Si, 85% Fe hmoov. Nws yog tsuas yog siv los hloov cov hmoov hlau hlau, qhov poob yog 80 feem pua qis dua cov hlau hmoov hlau, thiab tuaj yeem siv tau ntawm ntau zaus tshaj 8kHz; saturation sib nqus induction yog li 1.05T; magnetic permeability ntawm 26 mus rau 125; lub magnetostriction coefficient yog ze rau 0, ntawm qhov sib txawv frequencies Tsis muaj suab nrov thaum ua hauj lwm hauv siab; muaj peev xwm DC ntau dua li MPP; tus nqi zoo tshaj kev ua haujlwm. Feem ntau siv nyob rau hauv AC inductors, tso zis inductors, kab lim, fais fab kev kho circuits, thiab lwm yam. Qee lub sij hawm nws kuj tseem siv los ua ib qho transformer core es tsis txhob cua-gap ferrite.
