Dab tsi yog cov hom inductors | TAU TXAIS

Zoo li resistors thiab capacitors, cov inductors yog ib qho ntawm cov khoom siv nquag siv hauv kev tsim hluav taws xob. Inductor yog lub zog cia khoom, uas tuaj yeem hloov hluav taws xob thiab hluav taws xob sib nqus rau hauv ib leeg, thiab feem ntau ua lub luag haujlwm hauv kev lim dej, oscillating, stabilizing tam sim no thiab txwv tsis pub electromagnetic cuam tshuam hauv Circuit Court. Thaum siv cov inductors hauv Circuit Court, koj yuav tsum paub cov kev ntsuas ntawm inductors!

Thaum koj saib qee qhov kev ntsuas hluav taws xob, koj yuav pom tias cov cim inductance tau siv hauv Circuit Court. Tom qab saib cov kev txwv ntawm lub cim, kuv txawm tsis meej pem. Thaum twg lub chav tsev ntawm inductor ua OHM? Qhov tseeb, qhov no tsis yog inductor, tab sis yog cov hlaws sib nqus. Tom ntej no, peb yuav ntxiv qee qhov kev paub txog qhov sib txawv thiab kev sib txuas ntawm inductors thiab cov hlaws sib nqus.

Ua ntej piav qhia txog kev ua haujlwm ntawm cov hlaws sib nqus hauv Circuit Court, lub luag haujlwm loj tshaj plaws ntawm cov hlaws sib nqus hauv cov kab hluav taws xob sib txuas yog txhawm rau txhawm rau cuam tshuam cov teeb liab, los ntawm lub hauv paus ntsiab lus ntawm kev pom, cov hlaws sib nqus tuaj yeem sib npaug rau inductor, nco ntsoov tias qhov no yog ib qho yooj yim inductor. Qhov tiag inductor coil tau faib cov peev txheej, uas yog, inductor peb siv yog sib npaug rau inductor txuas nrog rau qhov sib npaug nrog lub capacitor faib.

Txheej txheem cej luam ntawm Inductance

Raws li kev xav, txhawm rau txhawm rau cuam tshuam cov teeb liab cuam tshuam, nws yuav tsum muaj qhov loj ntawm qhov inductance, qhov zoo dua, tab sis rau qhov inductor kauj , qhov inductance ntau dua, qhov ntau dua qhov sib faib capacitance ntawm inductor coil, thiab cov teebmeem ntawm ob. yuav rho tawm ib leeg tawm.

Thaum pib, qhov impedance ntawm inductor coil nce nrog qhov nce ntawm zaus, tab sis thaum nws impedance nce mus txog qhov siab tshaj plaws, impedance txo qis nrog qhov nce zaus, uas yog vim qhov cuam tshuam ntawm cov khoom sib txuas. Thaum lub impedance nce mus txog qhov siab tshaj plaws, nws yog qhov chaw uas qhov kev faib tawm ntawm cov inductor coil resonates nrog qhov sib npaug inductor nyob rau hauv parallel. Qhov loj dua qhov inductance ntawm inductor coil yog, qhov qis dua qhov resonant zaus. Yog tias peb xav txhim kho qhov kev tawm tsam ntau zaus, ces qhov kawg xaiv ntawm inductor kauj yuav tsum yog nws qhov tsawg kawg nkaus txwv, cov hlaws sib nqus, uas yog, lub plawv inductor, yog inductor coil nrog tsawg dua 1 tig. Txawm li cas los xij, qhov kev faib tawm ntawm cov tub ntxhais inductor yog ob peb zaug mus rau kaum ob lub sij hawm me dua li ntawm ib lub voj inductor kauj, yog li qhov ua haujlwm zaus ntawm lub plawv inductor yog siab dua li ntawm ib lub voj inductor kauj. . Lub inductance ntawm magnetic hlaws yog feem ntau kuj me me, txog ntawm ob peb microbeads thiab kaum ob ntawm microbeads. Lwm qhov kev siv cov hlaws sib nqus yog ua electromagnetic shielding, nws cov electromagnetic shielding nyhuv yog zoo dua li cov shielding nyhuv ntawm shielding hlau, uas cov neeg feem coob tsis them ntau xim rau. Txoj kev siv yog cia ib khub ntawm cov xov hlau hla mus rau hauv nruab nrab ntawm cov hlaws sib nqus, yog li thaum muaj ib qho hluav taws xob tam sim no ntws tawm ntawm ob lub xov hlau, feem ntau ntawm cov hlau nplaum yuav muaj zog hauv cov hlaws sib nqus, thiab cov hlau nplaum. teb yuav tsis tawm sab nraud lawm. Vim hais tias cov magnetic teb tsim eddy tam sim no nyob rau hauv lub magnetic hlaws, cov kev taw qhia ntawm lub eddy tam sim no ua lub hwj chim kab yog cia li opposite rau ntawm lub hwj chim kab nyob rau saum npoo ntawm tus neeg xyuas pib, uas yuav counteract ib leeg. Yog li ntawd, cov hlaws sib nqus kuj tseem muaj kev tiv thaiv hluav taws xob hauv hluav taws xob, uas yog, cov hlaws sib nqus muaj qhov muaj zog tiv thaiv ntawm electromagnetic teb nyob rau hauv tus neeg xyuas pib.

Qhov kom zoo dua ntawm kev siv cov hlaws sib nqus rau electromagnetic shielding yog tias cov hlaws sib nqus tsis tas yuav tsum tau ua hauv av, thiab cov teeb meem ntawm cov av uas yuav tsum tau muaj los ntawm cov hlau thaiv kev tiv thaiv tuaj yeem zam tau. Siv cov hlaws sib nqus raws li electromagnetic shielding, rau ob lub xov hlau, nws yog sib npaug rau kev sib txuas ib hom-hom tsub kom inductor nyob rau hauv kab, uas muaj ib tug muaj zog suppression nyhuv ntawm ib hom-mode cuam tshuam signals.

Nws tuaj yeem pom tau tias cov kauj vab inductor feem ntau yog siv rau EMI kev tawm tsam ntawm cov teeb liab cuam tshuam tsawg zaus, thaum cov hlaws hlau nplaum feem ntau yog siv rau EMI kev tawm tsam ntawm cov teeb liab cuam tshuam ntau zaus. Yog li ntawd, rau EMI kev tawm tsam ntawm qhov dav-band cuam tshuam teeb liab, ntau lub inductors ntawm cov khoom sib txawv yuav tsum tau siv tib lub sijhawm kom ua tau zoo. Tsis tas li ntawd, txhawm rau txhawm rau txhawm rau ua kom muaj kev cuam tshuam cov teeb liab los ntawm EMI, peb yuav tsum ua tib zoo saib xyuas qhov kev sib txuas ntawm inductor thiab Y capacitor. Lub Y capacitor thiab suppression inductor yuav tsum nyob ze li sai tau rau cov tswv yim ntawm lub hwj chim, uas yog, txoj hauj lwm ntawm lub hwj chim qhov hluav taws xob, thiab lub siab zaus inductor yuav tsum nyob ze li sai tau rau Y capacitor, thaum lub Y capacitor. yuav tsum nyob ze li sai tau rau hauv av xaim txuas nrog lub ntiaj teb (cov av xaim ntawm peb-core fais fab qaum), uas muaj txiaj ntsig zoo rau kev tiv thaiv EMI.

Cov saum toj no yog cov kev taw qhia ntawm ntau inductors, yog tias koj xav paub ntau ntxiv txog inductors, thov koj xav tiv tauj peb.