Njengezinto ezitshintshayo, i-MOSFET kunye ne-IGBT zihlala zivela kwiisekethe ze-elektroniki.Zikwayafana ngenkangeleko kunye neeparamitha zeempawu.Ndiyakholelwa ukuba abantu abaninzi baya kuzibuza ukuba kutheni ezinye iisekethe zifuna ukusebenzisa i-MOSFET, ngelixa abanye besenza.IGBT?
Yintoni umahluko phakathi kwabo?Okulandelayo,Olukeyuyakuphendula imibuzo yakho!
Yintoni naI-MOSFET?
I-MOSFET, igama elipheleleyo lesiTshayina yi-metal-oxide semiconductor field effect transistor.Ngenxa yokuba isango lale ntsimi yempembelelo ye-transistor yodwa ngumaleko wokugquma, ikwabizwa ngokuba yi-insulated gate field effect transistor.I-MOSFET inokohlulwa ibe ziindidi ezimbini: "N-uhlobo" kunye "nohlobo lwe-P" ngokungqinelana ne-polarity "yetshaneli" yayo (i-carrier esebenzayo), edla ngokubizwa ngokuba yi-N MOSFET kunye ne-P MOSFET.
I-MOSFET ngokwayo ine-parasitic diode yayo, esetyenziselwa ukuthintela i-MOSFET ekutshiseni xa i-VDD i-over-voltage.Ngenxa yokuba ngaphambi kokuba ukugqithisa kubangele umonakalo kwi-MOSFET, i-diode iphinda ihlehlise kuqala kwaye iqondise i-current enkulu emhlabeni, ngaloo ndlela ikhusela i-MOSFET ekubeni itshiswe.
Yintoni i-IGBT?
I-IGBT (I-Insulated Gate Bipolar Transistor) sisixhobo se-semiconductor esixutywe ne-transistor kunye ne-MOSFET.
Iisimboli zesekethe ye-IGBT ayikadibani.Xa uzobe umzobo weskimu, iisimboli ze-triode kunye ne-MOSFET zibolekwa ngokubanzi.Ngeli xesha, unokugweba ukuba ngaba yi-IGBT okanye i-MOSFET ukusuka kwimodeli ephawulwe kumzobo wesicwangciso.
Kwangaxeshanye, kufuneka kwakhona ingqalelo ukuba IGBT ine diode umzimba.Ukuba ayiphawulwanga emfanekisweni, oko akuthethi ukuba ayikho.Ngaphandle kokuba idatha esemthethweni ichaza ngenye indlela, le diode ikhona.I-diode yomzimba ngaphakathi kwe-IGBT ayiyonto i-parasitic, kodwa imiselwe ngokukodwa ukukhusela i-fragile reverse ukumelana nombane we-IGBT.Ikwabizwa ngokuba yiFWD (freewheeling diode).
Ukwakhiwa kwangaphakathi kwezi zibini zahlukile
Iipali ezintathu ze-MOSFET zingumthombo (S), umsele (D) kunye nesango (G).
Izibonda ezintathu ze-IGBT ngabaqokeleli (C), emitter (E) kunye nesango (G).
I-IGBT yakhiwa ngokongeza umaleko owongezelelweyo kumbhobho we-MOSFET.Ulwakhiwo lwazo lwangaphakathi ngolu hlobo lulandelayo:
Iinkalo zokusetyenziswa kwezi zibini zahlukile
Ulwakhiwo lwangaphakathi lwe-MOSFET kunye ne-IGBT lwahlukile, olumisela iindawo zabo zesicelo.
Ngenxa yolwakhiwo lwe-MOSFET, luhlala lufikelela umsinga omkhulu, onokufikelela kwi-KA, kodwa amandla ombane ayimfuneko okumelana nesakhono asinamandla njenge-IGBT.Ezona ndawo zisetyenziswayo kukutshintsha izixhobo zombane, ii-ballasts, i-high-frequency induction heat, i-high-frequency inverter welding machines, izixhobo zombane zonxibelelwano kunye nezinye iindawo zokubonelela ngombane.
I-IGBT inokuvelisa amandla amaninzi, okwangoku kunye ne-voltage, kodwa i-frequency ayiphezulu kakhulu.Okwangoku, isantya sokutshintsha nzima se-IGBT sinokufikelela kwi-100KHZ.I-IGBT isetyenziswa ngokubanzi koomatshini be-welding, ii-inverters, ii-frequency converters, i-electroplating electrolytic power supply, i-ultrasonic induction heat kunye nezinye iindawo.
Iimpawu eziphambili ze-MOSFET kunye ne-IGBT
I-MOSFET ineempawu ze-impedance ephezulu, isantya sokutshintsha ngokukhawuleza, uzinzo oluhle lwe-thermal, ulawulo lwangoku lwangoku, njl. Kwisekethe, inokusetyenziswa njenge-amplifier, i-electronic switch kunye nezinye iinjongo.
Njengohlobo olutsha lwesixhobo se-electronic semiconductor, i-IGBT ineempawu ze-impedance ephezulu, ukusetyenziswa kwamandla ombane ophantsi, ukulawula isiphaluka esilula, ukuchasana nombane ophezulu, kunye nokunyamezela kwangoku, kwaye isetyenziswe ngokubanzi kwiisekethe ezahlukeneyo ze-elektroniki.
Isekethe efanelekileyo elinganayo ye-IGBT iboniswe kumzobo ongezantsi.I-IGBT eneneni yindibaniselwano ye-MOSFET kunye ne-transistor.I-MOSFET inesiphene sokuxhathisa okuphezulu, kodwa i-IGBT iyayoyisa le ntsilelo.I-IGBT isenokumelana okuphantsi kumbane ophezulu..
Ngokubanzi, i-advanteji ye-MOSFET yeyokuba ineempawu ezintle ze-frequency ephezulu kwaye inokusebenza ngokuphindaphindiweyo kwamakhulu e-kHz ukuya kuthi ga kwi-MHz.Ukungalungi kukuba i-on-resistance inkulu kwaye ukusetyenziswa kwamandla kukhulu kwi-high-voltage kunye neemeko eziphezulu zangoku.I-IGBT iqhuba kakuhle kwiimeko eziphantsi kunye neemeko zamandla aphezulu, kunye nokumelana okuncinci kunye nokumelana nombane ophezulu.
Khetha iMOSFET okanye IGBT
Kwisekethe, nokuba ukhetha i-MOSFET njengetyhubhu yokutshintsha amandla okanye i-IGBT ngumbuzo osoloko udibana neenjineli.Ukuba izinto ezinje ngombane, okwangoku, kunye namandla okutshintsha kwenkqubo zithathelwa ingqalelo, la manqaku alandelayo angashwankathelwa:
Abantu bahlala bebuza: "Ngaba i-MOSFET okanye i-IGBT ingcono?"Enyanisweni, akukho mahluko ulungileyo okanye umbi phakathi kwezi zimbini.Eyona nto ibalulekileyo kukubona usetyenziso lwayo lokwenyani.
Ukuba usenemibuzo malunga nomahluko phakathi kwe-MOSFET kunye ne-IGBT, ungaqhagamshelana no-Olukey ngeenkcukacha.
U-Olukey usasaza ubukhulu becala i-WINSOK ephakathi kunye nesezantsi imveliso yeMOSFET.Iimveliso zisetyenziswa kakhulu kushishino lwasemkhosini, iibhodi zomqhubi ze-LED/LCD, iibhodi zokuqhuba iimoto, ukutshaja ngokukhawuleza, icuba zombane, iimonitha zeLCD, izixhobo zombane, izixhobo zombane ezincinci zasekhaya, iimveliso zonyango, kunye neemveliso zeBluetooth.Izikali ze-elektroniki, i-electronics yezithuthi, iimveliso zenethiwekhi, izixhobo zasekhaya, iiperipheral zekhompyutha kunye neemveliso ezahlukeneyo zedijithali.
Ixesha lokuposa: Dec-18-2023
