Kawm kom paub qhov inductance muaj nqi ntawm hom sib xws . Ua raws li cov chaw tsim khoom ua lag luam (kev paub zoo: axial inductor , Qhov Chaw radial inductor ) kom paub:
Qhov txawv ntawm cov hom tam sim no: Ib khub ntawm cov ntsuas ntawm qhov loj me thiab qhov kev coj rov qab ntawm ib khub ntawm cov teeb liab tsis sib luag, feem ntau siv hauv Circuit
Qhov tam sim no, rau kab hluav taws xob, yog qhov tam sim no ntws nruab nrab ntawm cov teeb liab kab thiab cov teeb liab hauv av.
Hom qub tam sim no: Ib khub ntawm cov cim (lossis lub suab nrov) ntawm qhov loj me thiab cov kev taw qhia ntawm ib khub ntawm cov teeb liab sib txawv.Qhov hauv Circuit Court,
Feem ntau, suab nrov hauv av yog xa los ntawm hom hom tam sim no, yog li nws tseem hu ua hom suab nrov.
Muaj ntau txoj hauv kev los tawm tsam cov suab nrov uas zoo ib yam. Ntxiv rau kev txo cov suab nrov-ua suab nrov ntawm qhov chaw, hom sib xyaw ua ke feem ntau yog siv los lim cov hom suab nrov, uas yog, txhawm rau txhawm rau tiv thaiv hom suab nrov tawm ntawm lub hom phiaj Circuit Court.Qhov yog, hom sib xyaw choke hauv series hauv a Circuit Court.Qhov hom phiaj yog txhawm rau ua kom tsis txhob cuam tshuam ntawm qhov hluav taws xob-hom hauv Circuit Court kom qhov kev sib koom ua ke tam sim no noj thiab thaiv (cuam tshuam) los ntawm caj pas txhawm, thiaj li txwv tsis pub muaj suab nrov hauv Circuit Court.
Lub hauv paus ntsiab lus ntawm cov khaub thuas-hom caj dab lossis inductor
Yog tias ib khub coils raug mob rau hauv tib qho kev qhia ntawm lub nplhaib sib nqus ntawm qee cov khoom sib nqus, sib nqus flux yog tsim nyob rau hauv lub kauj vim muaj hluav taws xob hluav taws xob thaum cov hluav taws xob hloov tam sim no hla lub coil.Rau cov hom sib txawv, cov sib nqus flux tsim los ntawm lub nplhaib sib nqus yog tib yam hauv qhov loj me thiab txawv hauv kev taw qhia, thiab ob qho tso tseg txhua tus tawm, yog li cov qauv sib txawv tsis sib haum uas tsim los ntawm lub nplhaib sib nqus yog me heev.Rau cov hom phiaj qhia sib txawv, cov sib nqus flux ua kom muaj qhov sib npaug thiab cov kev taw qhia, thiab ob lub lag luam superimposed rau ib leeg los tsim kom muaj ntau hom kev cuam tshuam ntawm lub nplhaib sib nqus.Qhov yam ntxwv no ua rau cov hom tsis sib xws muaj tsawg cuam tshuam ntawm qhov tsis sib xws hom teeb liab thiab muaj kev lim zoo dua rau cov hom suab nrov.
(1) Thaum txoj kev sib txawv tam sim no dhau los ntawm cov txheej txheem sib xws, cov kab sib nqus ntawm qhov chaw sib nqus yog qhov rov qab thiab lub sib nqus sib nqus tsis muaj zog txaus. Nws tuaj yeem pom los ntawm cov kev taw qhia ntawm lub sib nqus daim teb nyob rau hauv daim duab hauv qab no tias lub npov kab ncaj qha sawv cev ntawm kev coj ntawm qhov tam sim no thiab kab dashed sawv cev rau kev taw qhia ntawm lub chaw sib nqus
(2) Qhov sib txawv-hom tam sim no dhau los ntawm cov txheej txheej sib xws, thiab qhov chaw sib nqus yog ntxiv dag zog vim yog tib txoj kev ntawm lub sib nqus teb kab. Nws tuaj yeem pom los ntawm cov kev taw qhia ntawm lub sib nqus daim teb nyob rau hauv daim duab hauv qab no tias lub npov kab ncaj qha sawv cev ntawm kev coj ntawm qhov tam sim no thiab kab dashed sawv cev rau kev taw qhia ntawm lub chaw sib nqus
Cov hom tsis sib xws ntawm cov kauj los yog hu ua tus kheej-ine coefficient, peb paub tias qhov inductance yog tsim muaj peev xwm ntawm qhov chaw sib nqus, hom sib koom ua ke lossis hom-hom inductor coil, thaum cov hom uas tam sim no ntws los ntawm lub kauj, vim tias lub tshav sib nqus cov kab hauv cov kev taw qhia tib yam, tsis suav nrog kev txiav txim siab nyob rau hauv qhov xwm txheej ntawm cov xaim hluav taws xob sib nqus, sib nqus flux, nws cov ntsiab lus yog kev sib nrig sib, hauv qab coil coil magnetic teb kab los ntawm xiav, liab thiab xiav coil magnetic field line los ntawm kauj liab, induction txhua lwm yam.
From the point of view of inductance, inductance is multiplied, magnetic chain represents the total magnetic flux, the common-mode inductor, when magnetic flux is doubled, circle number has not changed, the current didn't also did not change, so mean increased inductance for 2 times, means that the equivalent permeability into 2 times.
Yuav ua li cas thiaj piv permeability tau ob npaug? Los ntawm cov qauv mis hauv qab no, txij li tus lej hloov N tsis hloov pauv, qhov sib nqus thiab qhov chaw sib cais ntawm thaj chaw sib nqus tau txiav txim siab los ntawm lub cev qhov loj ntawm lub sib nqus tub ntxhais, yog li tsis muaj kev hloov pauv. Qhov laj thawj tsuas yog qhov permeability U yog ob npaug, yog li cov hlau nplaum flux ntau tuaj yeem tsim tawm
Common-mode inductor in common mode, therefore, when an electric current passes through, work under the mutual inductance model, under the effect of mutual inductance, the equivalent inductance is cost increase, therefore common mode impedance will be multiplied, and the common mode signal has good filtering effect, also is the common mode signal with large impedance block, don't let it pass the common-mode inductor, also is not to let this signal transmission to the next level of the circuit, the following is the inductive reactance ZL.
Know common-mode inductor under the mode of common mode inductance, is the main clue to know mutual inductance, magnetic components of all, no matter what name as long as mastering the form of the change of the magnetic field, magnetic field changes through the phenomenon to essence, also easy to understand, moreover we always grasp the magnetic field lines, it is our understanding the visual form of the magnetic field, consider whether the same side or different name or concept of the mutual inductance phenomenon or magnetic field, we are drawing the lines of magnetic force to realize their - master "magnet winding method" is explained before.
Sijhawm Post: Dec-16-2020