Ma garanaysaa sababta keentay qulqulka qulqulka baabuurta korontada ku dallaca?

Ku dallaca gaadhiga korontadaqulqulka qulqulka hadda waxa guud ahaan loo qaybiyaa afar nooc, kuwaas oo kala ah: qayb semiconductor leakage current, power leakage current, capacitor leakage current iyo filter leakage current.

1. Qulqulka hadda jira ee qaybaha semiconductor

Dabeecadda aadka u yar ee mara isgoyska PN marka la gooyo.DS hore ayay u xaglinaysaa, GS waa ka soo horjeedaa eexda, ka dib marka la furo kanaalka korantada, hadda wuxuu ka qulquli doonaa D ilaa S. Laakiin dhab ahaantii, sababtoo ah jiritaanka elektarooniga bilaashka ah, elektaroonnada bilaashka ah ayaa ku xiran SIO2 iyo N+, taasoo keentay in qulqulka hadda DS.

2. Qulqulka tamarta hadda

Si loo yareeyo faragelinta sahayda wareejinta, marka loo eego heerka qaranka, wareegga shaandhada EMI waa in la bixiyaa.Xidhiidhka wareegga EMI-ka awgeed, waxa jira qulqul yar oo dhulka ah ka dib markii sahayda beddelka ahi ku xidhan tahay dhex-dhexaadka, taas oo ah qulqulka qulqulka.Haddi aan dhulka la dhigin, qolofta kumbiyuutarka waxa ay yeelanaysaa danab dhan 110 volts oo dhulka ah,waxana uu dareemaya kabuubyo marka aad gacmahaaga ku taabato,waxana ay sidoo kale saamayn ku yeelan doontaa shaqada kombiyuutarka.

3. Capacitor leakage current

Dhexdhexaadiyaha capacitor ma noqon karo mid aan shaqayn;marka danab DC ah lagu dabaqo capacitor-ka, capacitor-ku waxa uu yeelan doonaa dareere dareere ah.Haddii qulqulka qulqulaya uu aad u weyn yahay, capacitor-ku waxa dhaawacmi doona kulaylka.Marka lagu daro capacitors electrolytic, qulqulka hadda jira ee capacitors kale aad ayuu u yar yahay, sidaa daraadeed qiyaasta iska caabbinta dahaarka ayaa loo isticmaalaa si ay u matalaan waxqabadkooda dahaarka, halka korantada korantada ay leeyihiin qulqulo waaweyn oo hadda jira, sidaas darteed qulqulka hadda jira waxaa loo isticmaalaa si uu u matalo waxqabadkooda daboolka (saamiyadda). awood).Marka korantada shaqada ee DC ee la qiimeeyay lagu dabaqo capacitor-ka, waxaa la arki doonaa in isbeddelka hadda dallacadu uu bilaabo inuu weynaado, oo uu hoos u dhaco waqti ka dib.Marka ay gaadho qiime kama dambays ah, waxa ay gaartaa xaalad xasiloon.Xilligan qiimaha ugu dambeeya waxaa loo yaqaan qulqulka hadda.i=kcu(ua);halka k uu yahay daadinta joogtada ah ee hadda jirta, unuggu waa μa(v:μf)

4. Shaandhayso qulqulka hadda socda

Joogitaanka dareeraha shaandhada korantada waxaa lagu qeexaa sida: hadda ka imanaya guryaha shaandhada ilaa dhammaad kasta oo ka mid ah khadka AC ee soo galaya ee hoos imanaya tamarta AC ee lagu qiimeeyay.Haddii dhammaan dekedaha shaandhada ay gebi ahaanba ka dahaaran yihiin guryaha, qiimaha daadinta hadda waxay inta badan ku xidhan tahay qulqulka hadda ee capacitor-ka caadiga ah ee CY, taas oo ah, waxay inta badan ku xidhan tahay awoodda CY.Sababo la xiriira xajmiga qulqulka hadda ee shaandhada, taas oo ku lug leh badbaadada shakhsi ahaaneed, dhammaan waddamada adduunka ayaa leh heerar adag.Awoodda 220V/50Hz AC, qulqulka hadda ee filtarka sanqadha ayaa guud ahaan looga baahan yahay inuu ka yaraado 1mA.