1. Umsebenzi oLawulwa nguMbane
Ngokungafaniyo ne-bipolar junction transistors (BJTs) ezizizixhobo ezilawulwa ngoku, ii-MOSFET zamandla zilawulwa ngamandla ombane. Olu phawu lusisiseko lubonelela ngeenzuzo ezininzi ezibalulekileyo:
- Iimfuno zokuqhuba isango elenziwe lula
- Ukusetyenziswa kwamandla aphantsi kwisiphaluka solawulo
- Ukutshintsha ngokukhawuleza amandla
- Akukho nkxalabo yokuphazamiseka kwesibini
Umzobo 1: Iimfuno zokuqhuba isango ezenziwe lula zeMOSFETs xa kuthelekiswa neeBJTs
2. Superior Switching Performance
Ii-MOSFET zamandla zigqwesa kwizicelo zokutshintsha okuqhelekileyo, zibonelela ngeenzuzo ezininzi kwii-BJT zemveli:
Umzobo 2: Ukutshintsha uthelekiso lwesantya phakathi kwe-MOSFET kunye ne-BJT
| Ipharamitha | Amandla eMOSFET | BJT |
|---|---|---|
| Ukutshintsha isantya | Ngokukhawuleza kakhulu (uluhlu lwe-ns) | Phakathi (μs uluhlu) |
| Ukutshintsha Ilahleko | Phantsi | Phezulu |
| Ubuninzi bokuTshintsha iFrequency | >1 MHz | ~100 kHz |
3. Iimpawu zeThermal
Amandla e-MOSFET abonisa iimpawu eziphezulu zobushushu ezinegalelo ekuthembekeni nasekusebenzeni kwazo:
Umzobo 3: Iqondo lomlinganiso we-RDS(on) kumandla e-MOSFETs
- I-coefficient yeqondo lokushisa elihle lithintela ukubaleka kwe-thermal
- Ukwabelana okungcono kwangoku ekusebenzeni okufanayo
- Ukuzinza okuphezulu kwe-thermal
- Indawo ebanzi ekhuselekileyo yokusebenza (SOA)
4. Ukuchasa okuphantsi kweSizwe
Ii-MOSFET zamandla zangoku zifikelela ekuxhathiseni okuphantsi kakhulu kwimeko-bume (RDS(on)), ekhokelela kwiingenelo ezininzi:
Umzobo 4: Uphuculo lwembali kwi-MOSFET RDS(ivuliwe)
5. Ubuchule bokuNxibelelana
Ii-MOSFET zamandla zinokudityaniswa ngokulula ngokunxuseneyo ukuphatha imisinga ephezulu, ngenxa yomlinganiso wobushushu ofanelekileyo:
Umzobo 5: Ukwabelana ngoku kwii-MOSFETs eziqhagamshelwe ngokufanayo
6. Ubungqongqo kunye nokuthembeka
Ii-MOSFET zamandla zibonelela ngobunzima obugqwesileyo kunye neempawu ezithembekileyo:
- Akukho nto yesibini yokuphazamiseka
- I-diode yomzimba engokwemvelo yokukhusela umbane obuyela umva
- Ubuchule obugqwesileyo be-avalanche
- Ikhono eliphezulu ledV/dt
Umzobo 6: Indawo yokuSebenza eKhuselekileyo (SOA) uthelekiso phakathi kwe-MOSFET kunye ne-BJT
7. Iindleko-Ngempumelelo
Ngelixa ii-MOSFETs zamandla ngamanye zinokuba neendleko eziphezulu zokuqala xa kuthelekiswa nee-BJTs, izibonelelo zazo zomgangatho wenkqubo zizonke zihlala zikhokelela kugcino lweendleko:
- Iisekethe zokuqhuba ezilula zinciphisa ubalo lwamacandelo
- Ukusebenza okuphezulu kunciphisa iimfuno zokupholisa
- Ukuthembeka okuphezulu kunciphisa iindleko zokugcina
- Ubungakanani obuncinci buvumela uyilo olubambeneyo
8. Imizila yekamva kunye noPhuculo
Izinto eziluncedo zamandla e-MOSFETs ziyaqhubeka nokuphucuka ngenkqubela phambili yetekhnoloji:
Umzobo 7: I-Evolution kunye neendlela zexesha elizayo kumandla obuchwepheshe be-MOSFET
