Dhinaca elektiroonigga ah, MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistor) waxay noqdeen qaybo meel walba ka kooban, oo lagu ammaanay waxtarkooda, xawaaraha beddelka, iyo xakamaynta. Si kastaba ha ahaatee, sifada ka dhalan karta MOSFETs, diode-ka jirka, ayaa soo bandhigaysa nuglaanta suurtagalka ah: guuldarada. MOSFET fashilinta diode-ka jirka waxay u muuqan kartaa qaabab kala duwan, oo u dhexeeya burbur lama filaan ah ilaa hoos u dhaca waxqabadka. Fahamka sababaha caadiga ah ee guul-darrooyinkan ayaa muhiim u ah ka hortagga wakhtiga dhimista ee kharashka badan iyo hubinta isku halaynta hababka elektaroonigga ah. Boostada balooggani waxa ay si qoto dheer u gashay adduunka MOSFET diode-ku-guuldarrooyinka jidhka, sahaminta sababaha xididkooda, farsamooyinka ogaanshaha, iyo tallaabooyinka ka hortagga.
U fiirsashada Sababaha Caadiga ah ee MOSFET Jidhka Diode Failure
Burburka Burburka: Ka gudubka korantada burburka MOSFET waxay kicin kartaa burburka barafku, taasoo horseedda fashilka degdega ah ee diode-ka jirka. Tani waxay ku dhici kartaa koronto xad dhaaf ah, ku-meel-gaar ah oo xad-dhaaf ah, ama hillaac ku dhaca.
Soo-kabashada Dib-u-soo-kabashada: Habka soo-kabashada ee soo-kabashada, ee ku jirta MOSFET diode-yada jirka, waxay keeni kartaa korontadu iyo kala-baxa tamarta. Haddii culaysyadani ay dhaafaan awoodda diode-ka, way fashilmi kartaa, taasoo keenta cillado wareegga wareegga.
Kulaylka xad dhaafka ah: Kuleyl badan oo soo saara, oo ay badanaa sababaan qulqulo shaqaynaya oo sarreeya, kulayl aan ku filnayn, ama heerkulka deegaanka ee xad dhaafka ah, waxay dhaawici kartaa qaabdhismeedka gudaha ee MOSFET, oo uu ku jiro diode-ka jirka.
Dheejinta Electrostatic (ESD): Dhacdooyinka ESD, oo ay sababaan dareeraha korantada ee degdega ah, waxay duri karaan qulqulka tamarta sare ee MOSFET, taasoo u horseedi karta fashilka diode jirka.
Wax-soo-saarka cilladaha: cilladaha wax-soo-saarka, sida wasakhda, cilladaha qaab-dhismeedka, ama microcracks, waxay soo bandhigi karaan daciifnimo ee diode-ka jirka, kordhinta u nuglaanta fashilka hoos yimaada cadaadiska.
Ogaanshaha MOSFET Jirka Diode Failure
Kormeerka Aragga: Ka baadh MOSFET calamadaha dhaawaca jirka, sida midabka, dildilaaca, ama gubashada, kuwaas oo muujin kara kulayl ama cadaadis koronto.
Cabbiraadaha Korontada: Isticmaal multimeter ama oscilloscope si aad u cabbirto diodka hore iyo sifada danabka. Akhrinta aan caadiga ahayn, sida danab hore oo aad u hooseeya ama qulqulaya hadda, waxay soo jeedin karaan cilladda diode.
Falanqaynta Wareegga: Falanqaynta xaaladaha wareegga wareegga, oo ay ku jiraan heerarka korantada, xawaaraha beddelka, iyo culaysyada hadda jira, si aad u ogaatid culaysyada iman kara ee gacan ka geysan kara cilladda diode.
Kahortagga MOSFET Diode fashilka Jirka: Tallaabooyinka Firfircoon
Ilaalinta Voltage: Shaqaalaysii aaladaha ilaalinta korantada, sida Zener diodes ama varistors, si loo xaddido korontadu ugana ilaaliso MOSFET xaaladaha korantada.
Wareegyada Snubber: Hirgelinta wareegyada snubber, oo ka kooban iska caabiyeyaasha iyo capacitors, si ay u yareeyaan taranka korantada oo ay u daadiyaan tamarta inta lagu jiro dib u soo kabashada, yaraynta cadaadiska diode jirka.
Kuleyliyaha saxda ah: Hubi kulayl ku filan si aad si wax ku ool ah u baabi'iso kulaylka ay dhaliso MOSFET, ka hortagga kulaylka iyo waxyeelada diode ee iman karta.
Ilaalinta ESD: Hirgeli tillaabooyinka ilaalinta ESD, sida habsocod dejineed iyo habsocodyada maaraynta kala daadsanaanta, si loo yareeyo halista dhacdooyinka ESD ee dhaawici kara MOSFET's body diode.
Qaybaha Tayada: Isha MOSFET-yada laga helo soosaarayaasha sumcadda leh ee leh heerarka xakamaynta tayada adag si loo yareeyo suurtagalnimada cilladaha wax soo saarka ee u horseedi kara fashilka diode.
Gabagabo
Guuldarrooyinka jirka MOSFET waxay keeni karaan caqabado la taaban karo nidaamka elektiroonigga ah, taasoo keenta cillado wareegyada, hoos u dhaca waxqabadka, iyo xitaa burburinta aaladda. Fahamka sababaha caadiga ah, farsamooyinka ogaanshaha, iyo tallaabooyinka ka-hortagga ah ee MOSFET diode-ku-guuldarrooyinka jirka ayaa muhiim u ah injineerada iyo farsamayaqaannada si loo hubiyo kalsoonida iyo cimriga wareegyadooda. Iyadoo la fulinayo tallaabooyin firfircoon, sida ilaalinta korantada, wareegyada snubber, kulaylka saxda ah, ilaalinta ESD, iyo isticmaalka qaybo tayo sare leh, khatarta MOSFET diode-ka jirka ayaa si weyn hoos loogu dhigi karaa, hubinta hawlgalka siman iyo cimriga dheer ee hababka elektaroonigga ah.
Waqtiga boostada: Jun-11-2024