MOSFET-yadaaad loo isticmaalo. Hadda qaar ka mid ah wareegyada isku dhafan ee baaxadda weyn ayaa la isticmaalaa MOSFET, shaqada aasaasiga ah iyo transistor BJT, waa beddelka iyo xoojinta. Asal ahaan BJT triode waxaa loo isticmaali karaa halka loo isticmaali karo, meelaha qaarna waxqabadku wuu ka fiican yahay seddexda.
Kordhinta MOSFET
MOSFET iyo BJT triode, in kasta oo labadaba aaladda cod-weyneeye semiconductor, laakiin faa'iidooyin badan marka loo eego triode-ka, sida iska caabbinta wax-soo-saarka sare, isha isha ku dhawaad ma jiro hadda, taas oo u sahlaysa xasilloonida calaamadda gelinta. Waa aalad ku habboon sida cod-weyneeye heerka gelinta, sidoo kale wuxuu leeyahay faa'iidooyinka buuqa hooseeya iyo xasilloonida heerkulka wanaagsan. Badanaa waxaa loo isticmaalaa sidii horudhac loogu talagalay wareegyada cod-weyneynta. Si kastaba ha noqotee, sababtoo ah waa aaladda hadda jirta ee korantada lagu xakameeyo, qulqulka qulqulka waxaa lagu xakameynayaa danabka u dhexeeya isha iridda, isku-darka kor u qaadida is-beddelka-soo-celinta-yar-yar guud ahaan maaha mid weyn, sidaas awgeed awoodda kor-u-qaadista ayaa liidata.
Saamaynta beddelka MOSFET
MOSFET waxaa loo isticmaalaa sidii qalab elektaroonik ah, sababtoo ah ku tiirsanaanta kaliya ee polyon conductivity, ma jiraan sida BJT triode sababtoo ah saldhigga hadda iyo saamaynta kaydinta kharashka, markaa xawaaraha beddelka MOSFET wuu ka dheereeyaa triode, sida tuubada beddelka. waxaa inta badan loo isticmaalaa soo noqnoqoshada sare ee waqtiyada hadda jira, sida beddelka sahayda korantada ee loo isticmaalo MOSFET ee heerka-sare ee heerka sare ee shaqada. Marka la barbardhigo BJT saddex-geeska ah, MOSFET waxay ku shaqeyn kartaa koronto yar yar iyo qulqulo, wayna fududahay in la dhexgeliyo waferrada silikoon, sidaas darteed waxaa si ballaaran loogu isticmaalaa wareegyada isku dhafan ee ballaaran.
Waa maxay taxaddarrada marka la isticmaalayoMOSFET-yada?
MOSFET-yadu way ka jilicsan yihiin saddex-geesoodka waxayna si fudud u dhaawacmi karaan isticmaalka aan habboonayn, markaa taxaddar gaar ah ayaa loo baahan yahay marka la isticmaalayo.
(1) Waa lagama maarmaan in la doorto nooca MOSFET ee ku habboon munaasabadaha kala duwan ee isticmaalka.
(2) MOSFET-yada, gaar ahaan MOSFET-yada dahaaran, waxay leeyihiin caqabad sare oo wax-soo-gelinta ah, waana in lagu soo gaabiyaa korantada kasta marka aan la isticmaalin si looga fogaado burbur ku yimaadda tuubada sababtoo ah kharashka inductance gate.
(3) Korontada isha albaabka ee isgoysyada MOSFETs lama rogi karo, laakiin waxaa lagu badbaadin karaa gobolka wareegga furan.
(4) Si loo ilaaliyo hor istaagga sare ee MOSFET, tuubada waa in laga ilaaliyaa qoyaanka oo lagu hayaa engegan deegaanka la isticmaalo.
(5) Walxaha la dallacay (sida birta alxanka, qalabka tijaabada, iwm.) ee la xiriira MOSFET waxay u baahan yihiin in dhulka la dhigo si looga fogaado burbur ku yimaada tuubada. Gaar ahaan marka alxanka iridda MOSFET ee dahaaran, sida laga soo xigtay isha - iridda isku xig xiga ee alxanka, waxa fiican in alxanka ka dib markii korontada. Awoodda birta alxanka ilaa 15 ~ 30W waa ku habboon tahay, waqtiga alxanka waa inuusan dhaafin 10 ilbiriqsi.
(6) MOSFET iridda dahaaran laguma tijaabin karo multimeter, kaliya waxaa lagu tijaabin karaa tijaabiye, iyo ka dib marka la galo tijaabiyaha si meesha looga saaro fiilooyinka wareegga gaaban ee electrodes. Marka la saaro, waxaa lagama maarmaan ah in la gaabin electrodes ka hor inta aan la saarin si looga fogaado in iridda kor laalaadaan.
(7) Marka la isticmaalayoMOSFET-yadaoo leh hogaanka substrate, hogaanka substrate waa in si sax ah loogu xiraa.