Waa maxay faa'iidooyinka MOSFET-yada awoodda?

Awoodda MOSFET-yada waxay noqdeen aaladda doorashada ee codsiyada korantada casriga ah ee elektiroonigga ah, iyagoo ku beddelaya warshadaha sifooyinkooda wax qabad ee sarreeya. Falanqayntan dhammaystiran waxay sahamisaa faa'iidooyinka tirada badan ee ka dhigaya awoodda MOSFET-yada inay ka maarmi karaan nidaamyada elektiroonigga ah ee maanta.

1. Hawlgalka Korantada-Kontoroolka

Si ka duwan transistors-ka laba-cirifoodka (BJTs) ee ah aaladaha hadda la kantaroolo, MOSFET-yada awoodda ayaa ah kuwa korantada lagu xakameeyo. Sifadan aasaasiga ah waxay leedahay faa'iidooyin badan oo muhiim ah:

Shuruudaha wadista albaabka la fududeeyay
Isticmaalka tamarta hoose ee wareegga xakamaynta
Awoodaha beddelka degdegga ah
Wax walaac ah oo burburka labaad ah ma jiro

Isbarbardhigga wareegyada wadista albaabka BJT iyo MOSFET

Jaantuska 1: Shuruudaha wadista albaabka la fududeeyay ee MOSFETs marka la barbar dhigo BJTs

2. Waxqabadka Bedelka Sare

Awoodda MOSFETs waxay ku fiican tahay codsiyada beddelka soo noqnoqda ee sarreeya, iyagoo siinaya faa'iidooyin badan BJT-dhaqameedyada:

Isbarbardhigga xawaaraha u dhexeeya MOSFET iyo BJT

Jaantuska 2: Isbarbardhigga xawaaraha u dhexeeya MOSFET iyo BJT

Halbeegga	Awoodda MOSFET	BJT
Xawaaraha beddelka	Aad u Dhakhso badan (ns range)	Dhexdhexaad ah (mcs)
Bedelida Khasaaraha	Hoose	Sare
Inta ugu badan ee beddelka	>1 MHz	~ 100 kHz

3. Tilmaamaha kulaylka

Awoodda MOSFET-yada waxay soo bandhigaan sifooyin kulayleed heersare ah oo gacan ka geysta isku halaynta iyo waxqabadkooda:

Tilmaamaha kulaylka iyo isku-xidhnaanta heerkulka

Jaantuska 3: Isku-dhafka heerkulka RDS(daar) ee MOSFET-yada awoodda leh

Heerkulka wanaagsan ee isku dhafka ah ayaa ka hortagaya ka cararka kulaylka
Wadaagista hadda ka wanaagsan ee hawlgalka barbar socda
Deganaanshaha kulaylka sare
Aagga qalliinka ee ballaaran ee badbaadada leh (SOA)

4. Iska caabinta Gobolka oo Hoose

Awoodda casriga ah MOSFETs waxay gaadhaan iska caabin dawladeed oo aad u hooseeya (RDS(on)), taasoo horseedaysa faa'iidooyin dhowr ah:

Isbeddelka taariikheed ee RDS(on) horumarinta

Jaantus 4: Horumarka taariikheed ee MOSFET RDS

5. Awood isbarbar-dhigid

Awoodda MOSFET-yada si fudud ayaa loogu xidhi karaa si isbar-bar socda si ay ula tacaalaan qulqulka sare, taas oo ay ugu wacan tahay isugaynta heerkulka wanaagsan:

Hawlgalka barbar socda ee MOSFETs

Jaantuska 5: Wadaagista hadda ee MOSFET-yada ku xidhan ee is barbar socda

6. Kalsoonida iyo Kalsoonida

MOSFET-yada awoodda leh waxay bixiyaan sifooyin qallafsan oo aad u wanaagsan:

Ma jiro ifafaale burbur labaad
Diode jirka ee dabiiciga ah ee ilaalinta korantada
Avalanche karti aad u fiican
Awood sare oo dV/dt ah

Isbarbardhigga Aagga Howlgalka Badbaadada ah

Jaantuska 6: Isbarbardhigga Aagga Hawlgalka Badbaadada ah (SOA) ee MOSFET iyo BJT

7. Kharash-waxtarka

Halka MOSFET-yada awoodda shaqsiyeed ay yeelan karaan kharash bilow ah oo sarreeya marka la barbar dhigo BJTs, faa'iidooyinkooda heerka-nidaamku waxay inta badan keenaan kaydinta kharashka: