Waa maxay afarta gobol ee MOSFET?

Afarta gobol ee N-channel ee kor u qaadista MOSFET

(1) Gobolka iska caabin kala duwan (sidoo kale loo yaqaan gobolka unsaturated)

Ucs" Ucs (th) (furka shidan), uDs" UGs-Ucs (th), waa gobolka dhanka bidix ee raadadka horay loo sii xidhay ee shaxanka halka kanaalka shidmay. Qiimaha UDs waa ku yar yahay gobolkan, caabbinta kanaalka waxaa asal ahaan gacanta ku haya UG-yada. Marka uGs la hubo, ip iyo uDs galaan xiriir toos ah, gobolka waxaa lagu qiyaasaa sida xariiq toosan. Waqtigan xaadirka ah, tuubada saamaynta berrinka D, S inta u dhaxaysa u dhiganta UGS danab

Waxaa gacanta ku haya iska caabbinta korantada ee UGS

(2) gobol joogto ah (sidoo kale loo yaqaan gobolka saturation, gobolka cod-weyney, gobolka firfircoon)

Ucs ≥ Ucs (h) iyo Ubs ≥ UcsUssth), ee jaantuska dhinaca midig ee ka-hor-istaagga jidka, laakiin aan weli ku jabin gobolka, gobolka, marka uGs ay tahay, ib ku dhawaad ​​​​ma dhicin. isbeddelka UDs, waa sifooyin joogto ah oo hadda jira. i waxaa gacanta ku haya kaliya UG-yada, ka dib MOOSFETD, S waxay u dhigantaa kontoroolka uGs ee isha hadda. MOSFET waxaa loo adeegsadaa wareegyada cod-weyneysiinta, guud ahaan shaqada MOSFET D, S waxay u dhigantaa korantada uG-yada isha hadda la xakameynayo. MOSFET ee loo isticmaalo wareegyada cod-weyneysiinta, guud ahaan waxay ka shaqeysaa gobolka, sido kale loo yaqaan aagga cod-weyneysiinta.

(3) Aagga goos gooska (sidoo kale loo yaqaan aagga goynta)

Aagga goos gooska (sidoo kale loo yaqaan aagga la gooyay) si loola kulmo ucs "Ues (th) ee shaxanka u dhow dhidibka toosan ee gobolka, kanaalka dhammaantiis waa la xiray, oo loo yaqaan ' clip off full, io = 0 , tuubada ma shaqaynayso.

(4) goobta burburka

Gobolka burburay wuxuu ku yaalaa gobolka dhinaca midig ee sawirka. Iyada oo ay sii kordhayaan UD-yada, isku xirka PN waxaa lagu soo rogay koronto badan oo rogaal celis ah iyo burbur, ip wuxuu kordhiyaa si aad ah. Tuubada waa in la qalaa si looga fogaado in laga shaqeeyo gobolka burburay. Qallooca sifada wareejinta waxaa laga soo minguurin karaa qalooca sifada wax soo saarka. Habka loo isticmaalo garaaf ahaan si loo helo. Tusaale ahaan, Jaantuska 3 (a) ee Ubs = 6V xariiq toosan, isgoyskeeda oo leh qulqulo kala duwan oo u dhigma i, Qiimaha Us ee ib-Uss isku-duwayaasha ku xiran qalooca, taas oo ah, si loo helo qalooca sifada wareejinta.

HalbeegyadaMOSFET

Waxaa jira xaddi badan oo MOSFET ah, oo ay ku jiraan cabbirrada DC, cabbirrada AC iyo cabbirrada xaddidan, laakiin kaliya cabbirrada waaweyn ee soo socda ayaa loo baahan yahay in laga welwelo isticmaalka guud: Isha biya-mareenka buuxa ee IDSS-ka-qan ee hadda taagan, (tuubooyinka nooca is-goysyada ah iyo dhimista -nooca tuubooyinka albaabka dahaaran, ama UT-dadan (tuubooyinka albaabada la xoojiyay), gm trans-conductance, BUDS jebinta il-baxa, awoodda ugu sarreysa PDSM, iyo isha ugu sarreysa ee IDSM hadda.

(1) qulqulka qulqulka qulqulaya oo buuxa

Biyo-mareenka buuxa ee IDSS waa qulqulka hadda jira ee isgoyska ama nooca xaalufin ee iridda dahaaran ee MOSFET marka albaabka UGS = 0.

(2) Voltage-off

Korontada qanjaruufka ah ee UP waa danabka albaabka ee nooca isgoysyada ama nooca dhimista-albaab dahaaran MOSFET kaas oo gooya inta u dhaxaysa qulqulka iyo isha. Sida ku cad 4-25 ee tube N-channel UGS qalooca aqoonsiga, waa la fahmi karaa si loo arko muhiimada IDSS iyo UP

MOSFET afar gobol

(3) Danab daar

Danabka daaran ee UT waa danabka albaabka ee MOSFET-ka dahaaran ee la xoojiyay kaas oo ka dhigaya isha dhex-daad-gudaha mid toosan.

(4) Dhaqan-gal

Gm transconductance waa awoodda kontoroolka ee isha isha iridda UGS ee aqoonsiga hadda jira, ie, saamiga isbeddelka aqoonsiga qulqulka hadda jira ee isbeddelka isha isha albaabka UGS. 9m waa halbeeg muhiim ah oo miisaamaya awooda kordhintaMOSFET.

(5) Qulqulka burburka isha

Korontada burburka isha ee BUDS waxaa loola jeedaa korantada isha albaabka UGS qaar, MOSFET hawlgalka caadiga ah wuxuu aqbali karaa tamarta isha ugu sarreysa. Kani waa halbeeg xaddidan, oo lagu daray MOSFET danab hawleedka waa inuu ka yaraado BUDS.

(6) Koronto la'aanta ugu badan

Korontada ugu badan ee PDSM sidoo kale waa xadka xaddidan, waxaa loola jeedaaMOSFETWaxqabadku ma xumaanayo marka ugu badan ee la oggol yahay ee isha daadinta awoodda. Marka la isticmaalayo MOSFET isticmaalka awoodda wax ku oolka ah waa in uu ka yaraado PDSM oo ka tago xad gaar ah.

(7) Biyo-mareenka ugu badan ee hadda

Diidmada ugu badan ee imminka IDSM waa halbeeg kale oo xaddidan, waxa loola jeedaa hawlgalka caadiga ah ee MOSFET, isha daadinta ee ugu badnaan hadda la oggol yahay in lagu dhex maro MOSFET-keeda hawlaheeda waa in aanu dhaafin IDSM-ka.

MOSFET Mabda'a Hawleed

Mabda'a hawlgalka MOSFET (N-channel enhancement MOSFET) waa in la isticmaalo VGS si loo xakameeyo qaddarka "inductive charge", si loo beddelo xaaladda channel conductive ay sameeyeen kuwan "inductive charge", ka dibna si loo gaaro ujeedada. xakameynta qulqulka qulqulka. Ujeeddadu waa in la xakameeyo qulqulka qulqulka. Soo saarista tuubooyinka, iyada oo loo marayo habka samaynta tiro badan oo ah ions togan ee lakabka daboolka, sidaas darteed dhinaca kale ee interface waxaa lagu soo rogi karaa kharashyo taban oo dheeraad ah, eedeymahan xun ayaa la keeni karaa.

Marka korantada albaabka isbeddesho, qadarka kharashka ee kanaalka ayaa sidoo kale isbeddelaya, ballaca kanaalka korantada ayaa sidoo kale isbeddelaya, sidaas awgeed aqoonsiga hadda jira ayaa isbeddelaya korantada albaabka.

doorka MOSFET

I. MOSFET waxa lagu dabaqi karaa kor u qaadida Sababta oo ah cilad-gelinta sare ee cod-weyneeye MOSFET, kaabcitor-ku-xidhaha waxa uu noqon karaa awood yar, iyada oo aan la isticmaalin capacitors-ka korantada.

Midda labaad, hor istaagga sare ee MOSFET waa mid aad ugu habboon beddelidda impedance. Inta badan loo isticmaalo marxaladda gelista cod-weyneeye heer-sare ah oo beddelaadda impedance.

MOSFET waxa loo isticmaali karaa iska caabin doorsooma.

Marka afraad, MOSFET waxa si fudud loogu isticmaali karaa il joogta ah oo joogto ah.

Shanaad, MOSFET waxa loo isticmaali karaa beddelka elektarooniga ah.