Lub Chioce ntawm Magnetic Ferrite Cores

Cov kab mob sib nqus ferrite uas feem ntau tau pom ntawm ib los yog tag nrho ob qho ntawm cov xaim hluav taws xob los yog cov hlua hluav taws xob ntawm lub tshuab hluav taws xob yog hom kev khoob khawm. Cov hom khaub zawm caj pas tuaj yeem ua tus loj impedance rau hom hom interference tam sim no thiab tsis muaj feem xyuam rau hom teeb meem sib txawv (lub teeb liab ua haujlwm yog hom sib txawv ntawm lub hom phiaj), yog li nws yog qhov yooj yim tsis tau xav txog qhov teeb meem distortion teeb meem. Thiab hom khaub zig zom tsis tas yuav tsum tau grounded thiab tuaj yeem siv ncaj qha mus rau cable.

Dhau tag nrho pob khoom ntawm cables los ntawm ib qho ferrite hlaws tsim ib hom hom caj npoo, thiab cov hlua yuav raug mob nyob ib ncig ntawm lub pob hlau sib nqus ferrite raws li xav tau. Qhov ntau ntawm cov lem, zoo dua qhov cuam tshuam hluav taws nyhuv ntawm qhov qis zaus, thiab qaug zog ntawm lub suab nrov ntawm lub suab ntau dua. Hauv kev xyaum, cov naj npawb ntawm cov ciav hlau magnetic ferrite yuav tsum muab kho raws li qhov sib txawv ntawm qhov kev cuam tshuam ntawm cov kev cuam tshuam tam sim no. Feem ntau, thaum lub sij hawm uas muaj teeb meem ntawm qhov cuam tshuam loj, ob lub sib nqus ferrite cores yuav muab tso rau hauv cable, thiab txhua lub vaj huam sib luag sib nqus muaj ntau hom kev lem, yog li ntawd qhov cuam tshuam loj thiab tsawg zaus cuam tshuam yuav tsum tau suppressed ntawm tib sij hawm. Los ntawm txoj cai ntawm hom khaub zawm caj pas, qhov ntau dua qhov impedance, qhov ntau pom tseeb cuam tshuam kev cuam tshuam. Lub impedance ntawm hom hom txhawm chim yog los ntawm hom hom inductance lcm = jwlcm. Nws yog qhov yooj yim pom los ntawm cov mis uas rau ib lub suab nrov ntawm lub suab nrov, qhov loj inductance ntawm tus ntxhais hlau sib nqus ferrite, zoo dua qhov kev tshwm sim. Tab sis qhov no tsis yog cov ntaub ntawv, vim hais tias qhov tseeb magnetic ferrite tub ntxhais tseem muaj kab mob parasitic capacitance, uas tshwm sim nyob rau hauv parallel nrog lub inductor. Thaum muaj teeb meem kev cuam tshuam ntau zaus, ces lub capacitive reactance ntawm lub capacitor me me, thiab qhov inductance ntawm cov ntxhais ciav hlau fais fab yog luv luv, li no ua rau hom kev thuam kom poob nws cov nyhuv.

Raws li cov lus sib txuam ntawm cov teeb meem cuam tshuam, cov nickel-zinc ferrite los yog MnZn ferrite yuav raug xaiv, thiab tus qub muaj ntau dua tus yam ntxwv tshaj li qhov kawg. Cov khoom sib nqus ntawm MnZn ferrite yog ntau txhiab --- kaum ntawm txhiab tus, thiab nickel-zinc ferrite yog ntau pua --- phav phav. Qhov siab tshaj qhov sib nqus ntawm cov ferrite, qhov ntau dua qhov impedance ntawm tsawg frequencies thiab txo qhov impedance ntawm high frequencies. Yog li ntawd, nyob rau hauv suppressing high-zaus cuam, nickel-zinc ferrite yuav tsum tau siv; txwv tsis pub, manganese-zinc ferrite siv. Los yog muab nickel-zinc ferrite thiab MnZn ferrite rau hauv tib lub sijhawm tib lub sijhawm, uas tuaj yeem ua rau lub pob cuam tshuam.

Qhov loj dua qhov txawv nruab nrab ntawm lub puab thiab txheej diameters ntawm cov hlau dej magnetic ferrite, qhov loj dua qhov ntev qhov siab, qhov ntau dua qhov impedance, tiam sis lub puab txoj kab ntawm cov hlau nplaum ferrite yuav tsum tau nruj nreem qhwv kom tsis txhob to.

Qhov chaw ntawm txoj kev sib txuas ntawm cov hlau nplaum ferrite yuav tsum nyob ze li qhov ua tau rau qhov kev cuam tshuam. Nws yuav tsum nyob ze rau ntawm txoj hlua thiab qhov hluav taws xob.

Muaj ntau ntau lub sib nqus ferrite core neeg nyob hauv Suav teb. Cov tshuab hluav taws xob yog ib qho ntawm lawv. Qhov chaw ua hauj lwm no tuaj yeem muab qee hom caj pas, sib nqus ferrite cores thiab ntau dua. Qhov chaw ua hauj lwm no kuj yog qhov zoo tshaj plaws hauv-qhov kev hom qiv exporter.