U dhexgalka Adduunka MOSFET Jidhka Diodes: Fahamka Doorkooda Nakhshadda Wareegga

Bir-oxide-semiconductor field-effect transistors (MOSFETs) waxay wax ka beddeleen warshadaha elektiroonigga ah, iyagoo noqday qaybo meel walba ka jira oo ka kooban wareegyo kala duwan. Iyadoo hawshooda aasaasiga ah ay tahay inay xakameeyaan oo ay xoojiyaan calaamadaha korantada, MOSFETs waxay sidoo kale hayaan shay inta badan la iska indho-tiray oo weli muhiim ah: diode-ka gudaha. Boostada balooggu waxa ay si qoto dheer u dhex galaysaa MOSFET diodes jirka, sahaminta sifooyinkooda, muhiimada naqshadaynta wareegga, iyo codsiyada suurtagalka ah.

Soo bandhigida MOSFET Body Diode

Ku dhex milmay qaab dhismeedka MOSFET, diode-ka jidhku waa isku-xidhka dulin ee ka dhex abuurma biyaha iyo gobollada isha. Diode-kani waxa uu soo bandhigayaa socodka hadda socda oo aan jiho lahayn, taas oo u oggolaanaysa hadda in uu ka gudbo qulqulka ilaa isha laakiin ma aha beddelka.

Muhiimada Diode ee Jirka ee Nakhshad Wareega

Diode-ka jirka wuxuu door muhiim ah ka ciyaaraa codsiyada wareegga kala duwan, gaar ahaan korantada elektiroonigga ah:

Diode Lugaha Xorta ah: Inta lagu jiro marxaladda daminta MOSFET, diode-ka jidhku waxa uu qabtaa qulqulka soo kicinta ee culayska, isaga oo ka hortagaya xadhkaha korantada kana ilaalinaya MOSFET dhaawaca.

Dib u Celinta Ilaalinta Hadda: Wareegyada halka socodka hadda socda uu yahay walaac, diode-ka jidhku wuxuu u shaqeeyaa sidii xannibaad, isaga oo ka ilaalinaya hadda inuu dib ugu soo laabto MOSFET.

Snubber Diode: Diode-ka jidhku wuxuu u adeegi karaa sidii diode snubber, firdhiya tamarta lagu kaydiyo inductances parasitic iyo ka hortagga korontada xad dhaafka ah inta lagu jiro beddelka dhacdooyinka.

Tixgelinta MOSFET Diodes Jirka

Iyadoo diode-ka jirku uu bixiyo faa'iidooyin dabiici ah, waxaa lagama maarmaan ah in la tixgeliyo dhinacyo gaar ah oo ku saabsan naqshadeynta wareegga:

Kartida Voltage Reverse: Diode-ka jidhkiisa qiimihiisa dambeedka korantada waa in uu la mid noqdaa ama ka badan yahay wareegga dambe ee ugu badnaan si looga hortago burburka.

Qabashada Hore ee Hadda: Awooda hore ee diode-ka jidhku waa in ay ku filnaataa in uu xakameyo wakhtiga ugu sarreeya inta lagu jiro wheeling-free ama xaaladaha leexinta.

Xawaaraha beddelka: Xawaaraha beddelka diode-ka jidhka, gaar ahaan codsiyada soo noqnoqda, waa in aanu keenin dib-u-dhac weyn ama khasaare.

Codsiyada MOSFET Body Diodes

Diode-ka jirka wuxuu ka helaa codsiyada wareegyada kala duwan ee kala duwan:

Beddelayaasha DC-DC: Beddelayaasha buckka, diode-ka jidhku waxa uu u shaqeeyaa sidii diode taayir leh, isaga oo MOSFET ka ilaalinaya kor u kaca korantada.

Wareegyada Xakamaynta Baabuurta: Diode-ka jidhku waxa uu ka hortagaa dib u socodka hadda socda marka matoorku la joojiyo ama soo celiyo EMF.

Alaabta Korontada: Marka la joogo saadka korantada, diode-ka jidhku waxa uu ilaaliyaa MOSFET inta lagu guda jiro beddelka ku-meel-gaadhka waxana uu ka ilaaliyaa in hadda uu ka rogo culayska.

Gabagabo

MOSFET-ka jirka, oo inta badan la iska indho-tiro, ayaa door muhiim ah ka ciyaara naqshadeynta wareegga, gaar ahaan qalabka korontada. Fahamka astaamihiisa, muhiimada, iyo xaddidaadaha ayaa lama huraan u ah samaynta wareegyo adag, hufan, oo la isku halayn karo. Marka ay MOSFET tignoolajiyada horumarto, muhiimada diode-ka jidhku waxa ay u badan tahay in ay sii jirto, iyada oo hubinaysa in ay sii socoto ku talaxtaggeeda dunida weligeed soo koraysa ee elektaroonigga ah.