Hom Hom Tam Sim No: Ib khub ntawm cov teeb liab (los yog suab nrov) nrog tib qhov loj thiab kev taw qhia ntawm ob kab teeb liab sib txawv. Nyob rau hauv Circuit Court.Ntau zaus, cov suab nrov hauv av feem ntau kis tau los ntawm hom hom tam sim no, yog li nws tseem hu ua hom suab nrov.
Muaj ntau txoj hauv kev los txo cov suab nrov nrov. Ntxiv nrog rau kev txo qis hom suab nrov los ntawm qhov chaw, feem ntau siv txoj hauv kev los tiv thaiv cov suab nrov hom yog siv hom hom inductors los lim tawm cov suab nrov nrov, uas yog, los thaiv cov suab nrov nrov ntawm lub hom phiaj. Circuit Court. . Ntawd yog, ib hom kev choke ntaus ntawv txuas nrog hauv cov kab hauv kab. Lub hom phiaj ntawm qhov no yog txhawm rau txhawm rau ua kom lub impedance ntawm lub voj voog hom sib txawv kom cov hom hom tam sim no yog dissipated thiab thaiv (reflected) los ntawm choke, yog li suppressing hom suab nrov hauv kab.
Lub hauv paus ntsiab lus ntawm Common Hom Chokes lossis Inductors
Yog hais tias ib khub ntawm coils nyob rau hauv tib txoj kev yog raug mob ntawm ib tug sib nqus nplhaib ua los ntawm ib tug tej yam magnetic khoom, thaum ib tug alternating tam sim no dhau los, ib tug sib nqus flux yog generated nyob rau hauv lub coils vim electromagnetic induction. Rau kev sib txawv hom teeb liab, lub generated magnetic fluxes yog tib yam magnitude thiab opposite nyob rau hauv cov kev taw qhia, thiab lawv tshem tawm ib leeg, yog li qhov txawv hom impedance generated los ntawm magnetic nplhaib yog heev me me; Thaum rau cov hom phiaj xwm sib txawv, qhov loj thiab kev taw qhia ntawm cov hlau nplaum generated yog tib yam, thiab ob qho tib si superimposed rau ib leeg. Lub nplhaib sib nqus muaj ntau hom impedance. Cov yam ntxwv no ua rau hom hom inductor tsis tshua muaj kev cuam tshuam rau ntawm qhov sib txawv hom teeb liab thiab muaj kev lim dej zoo rau cov suab nrov hom.
(1) Qhov sib txawv hom tam sim no dhau los ntawm hom hom coil, cov kev taw qhia ntawm cov kab hlau nplaum yog qhov sib txawv, thiab qhov induced magnetic teb tsis muaj zog. Nws tuaj yeem pom los ntawm cov kev taw qhia ntawm cov kab sib nqus hauv cov duab hauv qab no - cov khoom xub taw qhia cov kev taw qhia ntawm cov tam sim no, thiab cov kab dotted qhia cov kev taw qhia ntawm cov hlau nplaum.
(2) Hom hom tam sim no dhau los ntawm hom hom coil, cov kev taw qhia ntawm cov kab hlau nplaum yog tib yam, thiab qhov induced magnetic teb yog muaj zog. Nws tuaj yeem pom los ntawm cov kev taw qhia ntawm cov kab sib nqus hauv cov duab hauv qab no - cov xub xub taw qhia cov kev taw qhia ntawm tam sim no, thiab cov kab dotted qhia cov kev taw qhia ntawm cov hlau nplaum.
Lub inductance ntawm hom hom coil tseem hu ua tus kheej inductance coefficient. Peb paub tias inductance yog lub peev xwm los tsim ib qho chaw sib nqus. Rau hom hom coil lossis hom hom inductance, thaum hom hom tam sim no ntws los ntawm lub kauj, txij li cov kev taw qhia ntawm cov kab hlau nplaum sib nqus yog tib yam, qhov to inductance tsis suav nrog. Nyob rau hauv cov ntaub ntawv ntawm, lub magnetic flux yog superimposed, thiab lub hauv paus ntsiab lus yog kev sib nrig sib inductance. Cov kab hluav taws xob sib nqus tsim los ntawm cov kauj liab hauv daim duab hauv qab no dhau los ntawm lub kauj xiav, thiab cov kab hlau nplaum uas tsim los ntawm lub kauj xiav kuj dhau los ntawm cov kauj liab thiab sib zog sib nqus.
Los ntawm qhov kev xav ntawm inductance, lub inductance kuj yog ob npaug, thiab cov flux linkage sawv cev rau tag nrho cov sib nqus flux. Rau hom hom inductors, thaum cov hlau nplaum sib nqus yog ob zaug ntawm qhov qub, tus lej hloov pauv tsis hloov, thiab qhov tam sim no tsis hloov, ces nws txhais tau hais tias Raws li qhov inductance nce 2 zaug, nws txhais tau tias qhov sib npaug sib nqus permeability yog. ua ob npaug.
Vim li cas qhov sib npaug sib nqus permeability ob npaug? Los ntawm cov qauv inductance hauv qab no, txij li tus lej hloov N tsis hloov, qhov sib nqus Circuit Court thiab qhov chaw sib nqus ntawm cov tub ntxhais sib nqus yog txiav txim siab los ntawm lub cev loj ntawm cov hlau nplaum, yog li nws tsis hloov, tsuas yog Qhov no yog qhov sib nqus permeability. u yog ob npaug, yog li ntau qhov sib nqus flux tuaj yeem tsim tawm
Yog li ntawd, thaum hom hom tam sim no dhau mus, hom hom inductance ua haujlwm nyob rau hauv kev sib nrig sib inductance hom. Nyob rau hauv qhov kev txiav txim ntawm kev sib nrig sib inductance, qhov sib npaug inductance yog nce los ntawm tus nqi, yog li hom hom inductance yuav raug muab faib ua ob npaug, yog li nws muaj txiaj ntsig zoo rau cov teeb liab hom. Cov nyhuv lim dej yog txhawm rau thaiv cov teeb liab ntau hom teeb liab nrog lub impedance loj thiab tiv thaiv nws los ntawm kev dhau ntawm cov hom inductor, uas yog, tiv thaiv cov teeb liab los ntawm kev xa mus rau theem tom ntej ntawm Circuit Court. Cov hauv qab no yog inductive reactance ZL tsim los ntawm inductor.
Txhawm rau nkag siab qhov inductance ntawm hom hom inductors nyob rau hauv hom hom hom, lub ntsiab lus tseem ceeb yog kom nkag siab txog kev sib nrig sib inductance, tag nrho cov khoom sib nqus, txawm tias lub npe yog dab tsi, tsuav yog koj nkag siab qhov hloov pauv ntawm cov magnetic teb thiab pom qhov xwm ntawm. lub magnetic teb hloov los ntawm qhov tshwm sim, nws yuav yooj yim to taub, thiab ces peb yuav tsum nco ntsoov tuav lub magnetic teb kab, uas yog intuitive daim ntawv ntawm peb kev nkag siab ntawm lub magnetic teb. Xav txog tias txawm tias lub tswv yim ntawm tib lub npe lossis lub npe txawv lossis kev sib nrig sib inductance lossis qhov tshwm sim ntawm magnetic teb, peb ib txwm kos cov kab hlau nplaum kom paub lawv - tus tswv ntawm "magnetic rod" piav qhia ua ntej. Txoj kev winding ”.
Lub sij hawm xa tuaj: Mar-16-2022
