Ingabe uyayazi imbangela yokuvuza kwamanje ezinqwaba zokushaja izimoto zikagesi?

Ukushaja imoto kagesiI-pile Leakage current ivame ukuhlukaniswa ngezinhlobo ezine, okuyilezi: i-semiconductor component ukuvuza yamanje, ukuvuza kwamandla wamanje, i-capacitor leakage current kanye nesihlungi samanje sokuvuza.

1. Ukuvuza kwamanje kwezingxenye ze-semiconductor

Umsinga omncane kakhulu ogeleza ku-PN junction uma unqanyulwa.I-DS ichemile phambili, i-GS ichemile, futhi ngemva kokuvulwa kwesiteshi sokuqhuba, i-current izogeleza isuka ku-D iye ku-S. Kodwa empeleni, ngenxa yokuba khona kwama-electron amahhala, ama-electron amahhala axhunywe ku-SIO2 ne-N+, okuholela ekuvuzeni. yamanje ye-DS.

2. Ukuvuza kwamandla okwamanje

Ukuze kuncishiswe ukuphazamiseka ekushintsheni kwamandla kagesi, ngokwezinga likazwelonke, kufanele kuhlinzekwe umjikelezo wesihlungi se-EMI.Ngenxa yobudlelwano bomjikelezo we-EMI, kukhona i-current encane phansi ngemuva kokuthi ugesi oshintshwayo uxhunywe kumapayipi amakhulu, okuwukuvuza kwamanje.Uma ingagxiliwe, igobolondo lekhompiyutha lizoba ne-voltage engu-110 volts phansi, futhi lizozizwa lindikindiki lapho ulithinta ngezandla zakho, futhi lizophazamisa nomsebenzi wekhompyutha.

3. I-Capacitor ukuvuza yamanje

I-capacitor medium ayikwazi ukungabi ne-conductive;lapho i-voltage ye-DC isetshenziswa ku-capacitor, i-capacitor izoba nokuvuza kwamanje.Uma ukuvuza kwamanje kukhulu kakhulu, i-capacitor izolinyazwa ukushisa.Ngaphezu kwama-electrolytic capacitor, ukuvuza kwamanje kwamanye ama-capacitor kuncane kakhulu, ngakho-ke ipharamitha yokumelana ne-insulation isetshenziselwa ukumela ukusebenza kwawo kokufakwa kwe-insulation, kuyilapho ama-electrolytic capacitor enamanje amakhulu okuvuza, ngakho-ke ukuvuza kwamanje kusetshenziselwa ukumela ukusebenza kwawo kokufakwa (ngokulinganayo). emandleni).Lapho i-voltage yokusebenza ye-DC elinganiselwe isetshenziswa ku-capacitor, kuzoqashelwa ukuthi ukuguqulwa kwamandla okushaja kuqala ukuba kukhulu, futhi kuncipha ngokuhamba kwesikhathi.Lapho ifinyelela inani elithile lokugcina, ifinyelela esimweni esizinzile ngokuqhathaniswa.Leli nani lokugcina lamanje libizwa ngokuthi ukuvuza kwamanje.i=kcu(ua);lapho u-k ewukuvuza okungaguquki kwamanje, iyunithi ithi μa(v:μf)

4. Hlunga ukuvuza kwamanje

Ukuvuza kwamanje kwesihlungi samandla kuchazwa ngokuthi: okwamanje kusuka esihlungini sezindlu kuya kunoma yikuphi ukuphela komugqa ongenayo we-AC ngaphansi kwe-voltage ye-AC elinganiselwe.Uma wonke amachweba okuhlunga evalekile ngokuphelele ezindlini, inani lokuvuza kwamanje lincike kakhulu ekuvuzeni kwamanje kwemodi evamile ye-capacitor CY, okungukuthi, incike kakhulu kumthamo we-CY.Ngenxa yobukhulu bokuvuza kwamanje kwesihlungi, okubandakanya ukuphepha komuntu siqu, wonke amazwe emhlabeni anezindinganiso eziqinile ngakho.Kumandla kagesi angu-220V/50Hz AC, ukuvuza kwamanje kwesihlungi somsindo ngokuvamile kudingeke ukuthi kube ngaphansi kuka-1mA.