Falanqaynta inductor hadda| hel

Naqshadeynta inductor waxay keeneysaa caqabado badan injineerada qaabeynta beddelka sahayda korontada. Injineerada waa in aysan dooran oo kaliya qiimaha inductance-ka, laakiin sidoo kale waa in ay tixgeliyaan hadda in inductor-ku qaadi karo, caabbinta dabaysha, cabbirka farsamada iyo wixii la mid ah. Saamaynta hadda DC ee soo saaraha, kaas oo sidoo kale ku siin doona macluumaadka lagama maarmaanka u ah xulashada inductor ku habboon.

Faham shaqada inductor

Inductor-ka waxaa badanaa loo fahmaa sida L ee wareegga shaandhada LC ee soo saarida sahayda beddelka (C waa capacitor-ka wax soo saarka). Inkasta oo fahamkani uu sax yahay, haddana waxaa lagama maarmaan ah in si qoto dheer loo fahmo hab-dhaqanka inductors si loo fahmo naqshadda inductors.

Isbeddelka hoos-u-dhaca, hal dhammaadka inductor-ka ayaa ku xiran koronta wax soo saarka DC. Dhamaadka kale wuxuu ku xiran yahay korantada wax gelinta ama GND iyada oo loo marayo beddelidda soo noqnoqoshada.

Inductor-ku waxa uu ku xidhan yahay danabka wax-soo-gelinta ee MOSFET, iyo inductor-ku waxa uu ku xidhan yahay GND. Isticmaalka kontaroolaha noocaan ah awgeed, inductor-ka waxa lagu dejin karaa laba siyaabood: iyadoo la isticmaalayo diode grounding ama MOSFET grounding. Haddii ay tahay habka dambe, beddelaha waxaa loo yaqaan "synchronus" mode.

Hadda ka fiirso mar kale haddii hadda ku qulqulaya inductor ee labadan gobol is beddelo. Mid ka mid ah cidhifyada inductor-ku wuxuu ku xiran yahay tamarta wax soo saarka halka kan kalena uu ku xiran yahay tamarta wax soo saarka. Beddelaha hoos-u-u-socodku, korantada wax-soo-gelinta ahi waa inay ka sarraysaa tamarta wax-soo-saarka, markaa hoos-u-dhac togan ayaa lagu samayn doonaa inductor-ka. Taas bedelkeeda, inta lagu jiro gobolka 2, hal dhamaadka inductor asal ahaan ku xiran danab gelinta ayaa ku xiran dhulka. Beddelaha hoos-u-u-socod ah, korantada wax-soo-saarku waa inay noqotaa mid togan, sidaas awgeed hoos-u-dhac taban ayaa lagu samayn doonaa inductor-ka.

Sidaa darteed, marka korantada ku jirta inductor-ka ay tahay mid togan, hadda waxa kor u kacaya inductor; marka danabku inductor-ku uu taban yahay, waxa yaraan doona tamarta hadda jirta.

Dhibicda korantada ee inductor ama hoos u dhaca danabka hore ee Schottky diode ee wareegga asynchronous waa la iska indho tiri karaa marka la barbar dhigo gelinta iyo wax soo saarka.

Saturation ee xudunta inductor

Iyadoo loo marayo wakhtiga ugu sarreeya ee inductor ee la xisaabiyay, waxaan ku ogaan karnaa waxa lagu soo saaro inductor. Way fududahay in la ogaado in marka uu hadda marayo inductor-ka uu kordho, inductance ay hoos u dhacdo. Tan waxaa lagu go'aamiyaa sifooyinka jireed ee walxaha xudunta u ah magnetic. Intee in le'eg ayaa inductance la dhimi doonaa waa muhiim: haddii inductance la yareeyo wax badan, beddelayaashu si sax ah uma shaqeyn doono. Marka inta hadda la marayo inductor-ka ay aad u weyn tahay in inductor-ku uu waxtar leeyahay, kan hadda jira waxaa loo yaqaan "saturation current". Tani sidoo kale waa halbeegga aasaasiga ah ee inductor.

Dhab ahaantii, inductor awoodda beddelka ee wareegga beddelka had iyo jeer waxay leedahay saturation "jilicsan". Marka hadda uu kordho ilaa xad, inductance ma hoos u dhac weyn, taas oo loo yaqaan "jilicsan" saturation sifada. Haddii hadda uu kordho mar kale, inductctor-ka ayaa dhaawacmi doona. Hoos u dhaca inductance ayaa ka jira noocyo badan oo ah inductors.

Iyada oo qaabkan jilicsan ee jilicsan, waxaan ogaan karnaa sababta inductance ugu yar ee hoos timaada wax soo saarka DC ee hadda lagu qeexay dhammaan beddelayaasha, iyo isbeddelka hadda jira ma saameyn doono inductance. Dhammaan codsiyada, qulqulka qulqulka ayaa la filayaa inuu noqdo sida ugu yar ee suurtogalka ah, sababtoo ah waxay saameyn doontaa qulqulka tamarta wax soo saarka. Tani waa sababta ay dadku had iyo jeer uga walaacsan yihiin inductance ka hooseysa wax soo saarka hadda ee DC oo ay iska indhatiraan inductance ka hooseysa qulqulka hadda jira ee Spec.

Kuwa kore waa hordhaca falanqaynta hadda jirta, haddii aad rabto inaad wax badan ka ogaato inductors, fadlan xor u noqo inaad nala soo xidhiidho.