MOSFET Waxbarasho Diode ee Jidhka ee Bilawga: U Qulqulka Adduunka Diodes-ka Parasitic

Dhinaca elektiroonigga ah, MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistor) waxay u soo baxeen inay yihiin qaybo meel walba ka kooban, oo caan ku ah hufnaantooda, xawaaraha beddelka, iyo xakamaynta. Si kastaba ha ahaatee, MOSFET-yadu waxay wataan sifo soo jireen ah, diode-ka jirka, kaas oo soo bandhigaya faa'iidooyinka iyo caqabadaha iman kara labadaba. Casharradan saaxiibtinimada bilawga ah waxay si qoto dheer u dhex galaysaa adduunka MOSFET body diodes, sahaminta aasaaskooda, sifooyinkooda, iyo codsiyadooda la taaban karo.

Soo bandhigida MOSFET Body Diode

MOSFET diode-ka jirka waa diode dulin gudaha ah oo uu sameeyay qaab dhismeedka gudaha MOSFET. Waxay u dhaxaysaa isha iyo marinnada bullaacadaha, jihadeeduna waxay caadi ahaan ka soo horjeedaa socodka dibadda ee MOSFET.

Fahamka Astaanta iyo Astaamaha

Astaanta MOSFET diode jirka waxay u egtahay diode caadiga ah, oo leh fallaadho tilmaamaysa jihada socodka hadda. Diode-ka jirka wuxuu muujiyaa dhowr astaamood oo muhiim ah:

Hadda Hore U Soconaya: Diode-ka jidhku waxa uu hadda u dhaqmi karaa jihada hore, oo la mid ah diode caadiga ah.

Burburinta Voltage-ka-noqoshada: Diode-ka jidhku waxa uu leeyahay danab-jabka rogaal celiska ah, kaas oo ka baxsan waxa uu u dhaqmo si xad-dhaaf ah, oo ay suurtagal tahay in uu dhaawaco MOSFET.

Waqtiga Soo kabashada: Marka diode-ka jidhku uu hore uga wareego oo uu beddelo, waxay qaadataa wakhti soo kabasho si ay u soo ceshato awooddeeda xannibaad.

Codsiyada MOSFET Body Diodes

Diode-wheeling-free: Wareegyada wax-soo-saarka, diode-ka jirku wuxuu u shaqeeyaa sidii diode lugeynaya, kaas oo siinaya waddo uu hadda inductor-ku qudhunto marka MOSFET-ku damo.

Dib u Celinta Ilaalinta Hadda: Diode-ka jidhku wuxuu MOSFET ka ilaaliyaa burburka sababtoo ah mawjadaha roga ee laga yaabo inay ka soo baxaan qaabaynta wareegyada qaarkood.

Qabashada korantada: Codsiyada qaarkood, diode-ka jirka waxa loo isticmaali karaa xajinta korantada, xaddidaadda korontada iyo ilaalinta qaybaha xasaasiga ah.

Tusaalooyinka wax ku oolka ah

Xakamaynta Baabuurta DC: Xakamaynta matoorka DC ee wareegyada kontoroolka mootada, diode-ka jidhku waxa uu MOSFET ka ilaaliyaa dhaawaca uu keeno mootada dhabarka inductive EMF (xoogga korantada) marka MOSFET ay damiso.

Wareegyada Bixinta Korontada: Wareegyada sahayda korantada, diode-ka jidhku waxa uu u adeegi karaa sida dareeraha taayirrada xorta ah, isaga oo ka hortagaya kor u kaca korontada xad dhaafka ah marka MOSFET ay damiso.

Wareegyada Snubber: Wareegyada Snubber, oo inta badan ka shaqeeya diode-ka jirka, ayaa loo isticmaalaa si ay u baabi'iyaan tamarta oo ay u yareeyaan xadhkaha korantada inta lagu jiro beddelka MOSFET, ilaalinta MOSFET iyo hagaajinta xasilloonida wareegga.

Gabagabo

MOSFET diode-yaasha jirka, in kasta oo inta badan la iska indho tiro, waxay door muhiim ah ka ciyaaraan wareegyada elektaroonigga ah ee kala duwan. Fahamka aasaaskooda, sifooyinkooda, iyo codsiyadooda waxay awood u siisaa injineerada iyo farsamayaqaannada inay naqshadeeyaan wareegyo adag oo la isku halayn karo. Adigoo si taxadar leh u tixgelinaya saameynta diode-yada jirka iyo shaqaaleysiinta farsamooyinka naqshadaynta wareegga ku habboon, awoodda buuxda ee MOSFET-yada ayaa laga faa'iideysan karaa iyada oo la hubinayo cimriga dheer iyo xasilloonida hababka elektaroonigga ah.