Kwinkalo ye-electronics, i-MOSFETs (i-Metal-Oxide-Semiconductor Field-Effect Transistors) iye yaba yinxalenye yendawo yonke, inconywa ngokusebenza kwayo, isantya sokutshintsha, kunye nokulawula. Nangona kunjalo, uphawu lwendalo lwe-MOSFETs, i-diode yomzimba, yazisa ubungozi obunokubakho: ukusilela. Ukungaphumeleli kwe-diode yomzimba we-MOSFET kunokubonakala ngeendlela ezahlukeneyo, ukusuka ekuqhekekeni ngequbuliso ukuya ekuwohlokeni komsebenzi. Ukuqonda izizathu eziqhelekileyo zoku kusilela kubalulekile ekuthinteleni ixesha lokuphumla elineendleko kunye nokuqinisekisa ukuthembeka kweenkqubo zombane. Esi sithuba sebhlog sijonga kwihlabathi lokusilela kwe-diode yomzimba we-MOSFET, kuphononongwa oonobangela bazo, iindlela zokuxilonga, kunye namanyathelo othintelo.
Ukuphonononga kwiiNqaku eziQhelekileyo zokuSilela kwe-MOSFET yoMzimba weDiode
Ukuqhekeka kweAvalanche: Ukodlula amandla ombane we-MOSFET kunokubangela ukuqhekeka kwe-avalanche, okukhokelela ekusilelani ngequbuliso kwe-diode yomzimba. Oku kunokwenzeka ngenxa ye-voltage spikes egqithisileyo, ii-overvoltage transients, okanye ukubetha kombane.
Ukungaphumeleli kokuBuyisa umva: Inkqubo yokubuyisela umva, engokwemvelo kwiidiode zomzimba we-MOSFET, inokubangela i-voltage spikes kunye nokuchithwa kwamandla. Ukuba ezi zixinzelelo zidlula amandla e-diode, inokungaphumeleli, ibangele ukungasebenzi kwesekethe.
Ukufudumeza ngokugqithisileyo: Ukuveliswa kobushushu obugqithisileyo, obudla ngokubangelwa kukusebenza kwemisinga ephezulu, ukungazinzi ngokwaneleyo kobushushu, okanye ubushushu obugqithisileyo, kunokonakalisa ulwakhiwo lwangaphakathi lwe-MOSFET, kuquka ne-diode yomzimba.
Ukukhutshwa kwe-Electrostatic Discharge (ESD): Iziganeko ze-ESD, ezibangelwa ukukhutshwa ngokukhawuleza kwe-electrostatic, zinokujova imisinga yamandla aphezulu kwi-MOSFET, enokuthi iholele ekungaphumeleli kwe-diode yomzimba.
Iziphene zokuvelisa: Ukungafezeki kokuvelisa, okufana nokungcola, iziphene zesakhiwo, okanye i-microcracks, inokwazisa ubuthathaka kwi-diode yomzimba, yokwandisa umngcipheko wayo wokungaphumeleli phantsi koxinzelelo.
Ukufunyaniswa kokusilela koMzimba we-MOSFET weDiode
UHlolo oluBonakalayo: Hlola i-MOSFET ngeempawu zomonakalo womzimba, ezifana nokutshintsha kwebala, iintanda, okanye ukutsha, ezinokubonisa ukutshisa kakhulu okanye uxinzelelo lombane.
Imilinganiselo yoMbane: Sebenzisa i-multimeter okanye i-oscilloscope ukulinganisa iimpawu zamandla ombane wediode phambili kunye nomva. Ufundo olungaqhelekanga, olufana nombane osezantsi kakhulu okanye ukuvuza kwangoku, kunokucebisa ukusilela kwediode.
Uhlalutyo lweSekethe: Hlalutya iimeko zokusebenza zesekethe, kubandakanywa amanqanaba ombane, isantya sokutshintsha, kunye nemithwalo yangoku, ukuchonga izinto ezinokubangela uxinzelelo olunokuthi lube negalelo ekungaphumeleli kwediode.
Ukuthintela Ukungaphumeleli kweDiode yoMzimba we-MOSFET: Amanyathelo asebenzayo
Ukukhuselwa kwamandla ombane: Sebenzisa izixhobo zokukhusela amandla ombane, njengeZener diode okanye i-varistors, ukunciphisa i-voltage spikes kunye nokukhusela i-MOSFET kwiimeko zombane ogqithisileyo.
Iisekethe ze-Snubber: Sebenzisa iisekethe ze-snubber, ezibandakanya i-resistors kunye ne-capacitors, ukuthoba i-voltage spikes kunye nokuchitha amandla ngexesha lokubuyisela umva, ukunciphisa uxinzelelo kwi-diode yomzimba.
I-Heatsinking efanelekileyo: Qinisekisa ukutshisa okwaneleyo ukukhupha ngokufanelekileyo ubushushu obuveliswa yi-MOSFET, ukuthintela ukutshisa kunye nomonakalo onokuthi ube khona we-diode.
Ukhuseleko lwe-ESD: Sebenzisa imilinganiselo yokukhusela ye-ESD, efana nemigaqo yokuphatha kunye ne-static-dissipative, ukunciphisa umngcipheko weziganeko ze-ESD ezinokonakalisa i-diode yomzimba we-MOSFET.
Amacandelo oMgangatho: Umthombo wee-MOSFET ezivela kubavelisi abathembekileyo abanemigangatho engqongqo yolawulo lomgangatho ukunciphisa ukubakho kweziphene zokwenziwa kwemveliso ezinokukhokelela kukusilela kwediode.
Ukuqukumbela
Ukungaphumeleli kwe-diode yomzimba we-MOSFET kunokubangela imiceli mngeni ebalulekileyo kwiinkqubo zombane, kubangele ukungasebenzi kakuhle kwesekethe, ukuthotywa komgangatho wokusebenza, kunye nokutshatyalaliswa kwesixhobo. Ukuqonda izizathu eziqhelekileyo, iindlela zokuxilonga, kunye namanyathelo okuthintela ukusilela kwe-diode yomzimba we-MOSFET kubalulekile kwiinjineli kunye neengcali zokuqinisekisa ukuthembeka kunye nobomi obude beesekethe zabo. Ngokuphumeza amanyathelo asebenzayo, anje ngokhuseleko lwamandla ombane, iisekethe ze-snubber, ukutshisa ngokufanelekileyo, ukhuseleko lwe-ESD, kunye nokusetyenziswa kwezixhobo ezikumgangatho ophezulu, umngcipheko wokungaphumeleli kwe-diode yomzimba we-MOSFET unokuncipha kakhulu, uqinisekisa ukusebenza kakuhle kunye nokwandisa ubomi beenkqubo zombane.
Ixesha lokuposa: Jun-11-2024