Nanocrystalline, kuj hu ua nano-amorphous, yog ib yam tshiab ntawm magnetic khoom. Nanocrystalline cores yog favored los ntawm cov neeg rau lawv cov qib high magnetic permeability, siab squareness ratio, uas tsis muaj cov tub ntxhais poob thiab kub stability.
        Lub Nanocrystalline tub ntxhais muaj siab saturation magnetic induction (1.l ~ 1.2T), siab magnetic permeability, tsis tshua muaj coercivity, tsis tshua muaj poob thiab zoo stability, hnav kuj thiab corrosion kuj. Cov uas tsis muaj nqi muaj qhov zoo tshaj plaws nqi / kev kawm ntawv piv nrog rau tag nrho cov hlau mos magnetic khoom cores. Cov khoom siv los ua lub Nanocrystalline tub ntxhais yog hu ua tus "ntsuab khoom" thiab yog dav siv los hloov cov pob zeb ntais steel, permalloy thiab ferrite li loj, medium thiab me me nyob rau hauv ntau yam ntaub ntawv ntawm siab zaus (20-100 kHz) switching khoom siv fais fab. Fais fab ntsiab transformer, tswj transformer, yoj inductor, zog cia inductor, reactor, magnetic amplifier, nyeem reactor tub ntxhais, EMC lim ntau hom inductor thiab differential hom inductor tub ntxhais. IDSN tej yam me me kev rho tawm transformer tub ntxhais kuj yog lug siv nyob rau hauv ntau hom transformer cores ntawm tib precision.
1 yam ntxwv tseem ceeb ntawm Nanocrystalline tub ntxhais
Lub VITROPERM 500F hlau-raws li Nanocrystalline tub ntxhais muaj cov nram qab nta:
1) heev thawj zaug permeability, μ = 30 000 ~ 80 000, thiab sib nqus permeability txawv heev me ntsis nrog rau cov flux ceev thiab kub;
2) Cov tub ntxhais tsis yog tsis tshua muaj tsis tshua muaj thiab tsis hloov nrog kub nyob rau hauv lub chav 40 rau +120 ° C;
3) heev saturation flux ceev (Bs = 1.2T), uas ib tug tsawg dua switching zaus yuav tsum tau xaiv, uas yuav txo tau tus nqi ntawm switching khoom siv fais fab thiab EMI cov ntxaij lim dej;
4) Cov magnetic tub ntxhais yog encapsulated los ntawm epoxy cob, uas muaj siab txhua yam dag lub zog, tsis muaj hysteresis thiab ncab, thiab muaj peev xwm mas muaj zog co;
5) Nws yuav hloov tau cov tsoos ferrite tub ntxhais los txo qhov ntim ntawm lub switching fais fab mov. Txhim kho txhim khu kev qha qhov chaw.
2, daim ntawv thov ntawm Nanocrystalline magnetic tub ntxhais nyob rau hauv switching fais fab mov
2.1 Daim ntawv thov ntawm Nanocrystalline tub ntxhais cov ntaub ntawv uas nyob rau hauv high zaus transformer
        Tam sim no, siab zaus transformers feem ntau siv ferrite cores. Muab piv rau cov kev ua tau zoo ntawm cov VITROPERM 5OOF hlau-raws li ultra-micronized magnetic tseem ceeb nrog cov N67 series ferrite tub ntxhais ua los ntawm ob tug German subsidiaries, sib nqus permeability ntawm lub Nanocrystalline tub ntxhais hloov npaum li cas tsawg nrog kub tshaj lub ferrite tub ntxhais. Nws yuav ua tau kom lub stability thiab kev cia siab ntawm lub switching fais fab mov. Thaum lub kub kev hloov, tsis tau ntawm lub Nanocrystalline tseem ceeb yog tsawg tshaj hais tias ntawm lub ferrite tub ntxhais.
Nyob rau hauv tas li ntawd, lub ferrite tub ntxhais muaj ib tug uas tsis muaj Curie point kub thiab yog yooj yim demagnetized sov siab. Yog hais tias ib tug super microcrystalline tub ntxhais yog siv los ua ib tug transformer, tus nqi ntawm cov kev hloov nyob rau hauv magnetic induction thaum lub sij hawm kev lag luam yuav tsum tau hloov los ntawm O. 4T ntau zog rau 1. OT, lub operating zaus ntawm lub hwj chim hloov raj yog txo mus rau hauv qab no 100 kHz.
2.2. Daim ntawv thov ntawm Nanocrystalline tub ntxhais nyob rau hauv ntau hom inductor
        Thaum ib qho hom inductor (kuj hu ua ib qho hom caj pas) yog kev qhia kev siv ib qho Ultrafine siv lead ua cov tub ntxhais, ib tug loj npaum li cas ntawm inductance yuav tau ua los ntawm winding ib tug me me muaj pes tsawg tus lem, li no kom txhob muaj tooj liab tsis thiab txuag hlau thiab txo lub volume ntawm cov hom inductor yog me me. Common hom inductors ua nrog Nanocrystalline cores muaj siab ntau hom zoo poob thiab suppress ntau hom cuam ntau tshaj ib tug ntau ntau zaus, xa qhov yuav tsum tau rau txoj lim circuits. Ib tug ntau hom inductor yog kev qhia los ntawm kev siv ib tug ferrite tub ntxhais thiab ib tug Nanocrystalline tub ntxhais, ntsig txog.
2.3. Daim ntawv thov ntawm Nanocrystalline tub ntxhais nyob rau hauv EMI lim
        Lub cobalt-raws li Nanocrystalline tub ntxhais VIT-ROVAC 6025Z ua los ntawm vac yuav tau lug siv nyob rau hauv lub EM1 lim switching fais fab mov, uas muaj peev xwm zoo suppress lub qhov ntsia hlau loj voltage generated los ntawm cov ceev ceev hloov ntawm tam sim no. Ib tug ntsia hlau loj suppressor yuav kev qhia los ntawm winding ib tug los yog ob peb lem ntawm tooj liab hlau rau lub Nanocrystalline tub ntxhais. Tus qauv yog heev yooj yooj yim thiab cov hluav ntawm suab nrov cuam yog heev zoo. Lub VITROVAC 6025Z Nanocrystalline tub ntxhais muaj ib tug heev tsawg tus tub ntxhais poob thiab ib tug siab squareness ratio. Thaum lub tam sim no mam li nco dheev hloov mus pes tsawg, nws teev ib tug loj inductance, uas muaj peev xwm tabkaum qhov rov qab tam sim no ntawm lub rectifier.
        Thaum lub tam sim no yog muab rau, qhov tseem ceeb yog nyob rau hauv ib tug nyeem lub xeev thiab muaj ib tug heev tsawg inductance. Thaum lub tam sim no nce mus txog lub operating point (remanence point)
        thaum lub tam sim no yog muab tawm, tam sim no tseem nyob rau hauv qhov tsis zoo coj vim qhov rov qab sij hawm rov qab ntawm lub rectifier. Txo, tab sis lub Nanocrystalline tub ntxhais muaj ib tug heev magnetic permeability, uas yuav qhia ib tug loj npaum li cas ntawm inductance, li ntawd nws tsis mus los ntawm lub theoretical kev khiav hauj lwm point (yuav tsum tau sib haum mus rau lub caij thaum qhov rov qab ncov tam sim no IR tshwm sim). Nws yog ncaj qha mus rau cov ua hauj lwm point (ie, qhov rov qab remanent point), thiab ces magnetized yuav pib lwm voj voog. Qhov no cov yam ntxwv ntawm suppressing lub ncov tam sim no ntawm lub rectifier yog hu ua "mos mos rov qab."
        Nrog rau txoj kev loj hlob thiab loj hlob ntawm lub hwj chim electronics technology, cov neeg maj mam twb paub lawm tias magnetic Cheebtsam yog tsis tsuas haumxeeb Cheebtsam rau hauv hwj chim khoom siv, tab sis kuj lawv lub ntim, nyhav thiab tsis tau dab tsi rau ib tug txiav txim kev faib ua feem nyob rau hauv tag nrho cov tshuab. Raws li statistics, tus luj ntawm lub magnetic tivthaiv yog feem ntau 30% mus rau 40% ntawm tag nrho cov luj ntawm lub converter, thiab qhov ntim nyiaj rau 20% mus rau 30% ntawm tag nrho cov ntim. Rau cov high-zaus fais fab mov ntawm lub tsev modular tsim, kev faib ua feem ntawm lub ntim thiab luj ntawm lub magnetic tivthaiv Nws yuav txawm ntau dua. Nyob rau hauv tas li ntawd, magnetic Cheebtsam yog ib qho tseem ceeb rau cov dynamic kev ua tau zoo ntawm lub hwj huam mov tso zis thiab tso zis ripple. Yog li ntawd, nyob rau hauv thiaj li yuav txhim kho lub hwj chim ceev, efficiency, thiab tso zis zoo ntawm lub hwj huam mov, nyob rau hauv-tob kev tshawb fawb yuav tsum tau ua kom tsis txhob muaj lub ntim, qhov hnyav, thiab poob ntawm lub magnetic tivthaiv kom tau raws li cov kev xav tau ntawm lub hwj chim txoj kev loj hlob. Peb thiaj li muaj kev ntseeg tau hais tias Nanocrystalline cores yuav muaj ib tug sab heev daim ntawv thov prospect nyob rau hauv switching khoom siv fais fab.