Zeziphi iimpawu ezintlanu zeempawu ze-inductor | PHILA

Inxeba lekhoyili kwimilo ejikelezayo liyaguquguquka, kwaye ikhoyili esetyenziselwa iinjongo zombane ibizwa ngokuba yi- inductors . Ii-inductors zisetyenziswa ngokubanzi kwiisekethe ze-elektroniki, kwaye zinokwahlulwa zibe ngamacandelo amabini, enye i-inductors yeenkqubo zesignali, kwaye enye i-inductors yamandla kwiinkqubo zamandla.

I-Inductor isetyenziswa ngokubanzi njengecandelo, kwaye ezinye zeeparamitha zayo ezisisiseko azinakwa lula, okukhokelela kuyilo olungonelanga kunye neengxaki ezinzulu zokusetyenziswa kwemveliso.

Ukuthatha i-inductor yamandla njengomzekelo, iiparitha ezisisiseko ze-inductor ziyaziswa.

ixabiso le-inductance

I-parameter esisiseko ye-inductance nayo iyipharamitha ebalulekileyo echaphazela i-ripple current kunye nempendulo yomthwalo.

Ixesha langoku le-inductor yamandla kwi-converter ngunxantathu wangoku wamaza. Ngokubanzi, i-ripple current inokumiselwa malunga ne-30% yomthwalo wangoku. Ngoko ke, ngokude nje ukuba iimeko zomguquli zinqunywe, i-inductance efanelekileyo ye-inductor yamandla ingabalwa ngokukhawuleza. Ikhethwe ngokwexabiso lereferensi yomenzi, ukuba ufuna ukutshintsha imodeli entsha ye-inductor, iiparamitha zayo akufanele zihluke kakhulu kwixabiso lereferensi elicetyiswa ngumthengisi.

saturation yangoku

Uphawu lwangoku lokugcwalisa lukwabizwa ngokuba yi-DC superposition character, echaphazela i-inductance esebenzayo xa i-inductor isebenza. Ukuba i-inductor ayikhethwanga ngokufanelekileyo, i-inductor ilula ukuba ihluthe, ibangela ukuba ixabiso langempela le-inductance liyancipha, alikwazi ukuhlangabezana neemfuno zokuyila, kwaye inokutshisa isiphaluka. Inkcazo yesekethe egcweleyo iyahluka kancinci, ngokuqhelekileyo ithetha, ibhekisela kumbane xa i-inductance yokuqala iyancipha ngama-30%.

ukunyuka kobushushu okwangoku

Le yiparameter echaza uluhlu oluvumelekileyo lobushushu be-ambient xa usebenzisa ii-inductors. Inkcazo yokunyuka kweqondo lobushushu ngoku iyahluka ukusuka kumenzi ukuya kumenzi, ukuthetha ngokubanzi, ibhekisa kwisekethe xa ubushushu be-inductor buphakanyiswe ngama-30 ℃. Umphumo weqondo lokushisa uyahluka kunye nendawo yokusebenza yesiphaluka, ngoko kufuneka ikhethwe emva kokuqwalasela indawo yokusetyenziswa kwangempela.

I-impedance ye-DC

Imele ixabiso lokumelana xa udlula ngoku ngokuthe ngqo. Impembelelo enkulu kunye neyona nto ichanekileyo yale parameter yilahleko yokufudumeza, ngoko ke i-impedance encinci ye-DC, ilahleko encinci. Kukho ungquzulwano oluncinci phakathi kokuthotywa kweRdc kunye neminiaturization. Ngethuba nje ukusuka kwii-inductors ezikhankanywe ngasentla ezihlangabezana neempawu eziyimfuneko ezifana ne-inductance kunye ne-rated current, imveliso ene-Rdc encinci inokukhethwa.

Impedance frequency uphawu

I-impedance ye-inductor efanelekileyo iyanda ngokunyuka kwamaza. Nangona kunjalo, ngenxa yobukho be-parasitic capacitance kunye nokuchasana kwe-parasitic, i-inductor yangempela i-inductive kwi-frequency ethile, i-capacitive ngaphaya kwe-frequency ethile, kwaye i-impedance iyancipha ngokunyuka kwamaxesha. Le frequency yi-turning frequency.

Oku ngasentla kukwaziswa kweeparamitha zeempawu ezintlanu ze-inductor. ukuba ufuna ukwazi ngakumbi malunga ne-inductor, nceda uzive ukhululekile ukuqhagamshelana nathi.