Ngaba ujonge ukugqwesa iiamplifiers zeMOSFET? Ukwindawo elungileyo. Esi sikhokelo sibanzi sicalula yonke into ukusuka kwiingqikelelo ezisisiseko ukuya kwezona zicelo ziphambili, sikunceda ukuba uqonde iintlobo ezahlukeneyo zezikhulisi ze-MOSFET kunye nokuphunyezwa kwazo okusebenzayo.
Ukuqonda iziNqaku ze-MOSFET zeAmplifaya
Izandisi ze-MOSFET ziguqule ii-elektroniki zala maxesha, zibonelela ngomsebenzi ogqwesileyo ngokokusebenza kombane, ukuphendula ngamaza, kunye nokulula kwesekethe. Phambi kokuntywila kwiintlobo ezithile, masiqonde ukuba yintoni eyenza i-MOSFET amplifiers ibe yodwa.
Izinto ezilungileyo ezingundoqo ze-MOSFET Amplifiers
- I-impedance ephezulu yegalelo xa kuthelekiswa ne-BJT amplifiers
- Uzinzo olungcono lwe-thermal
- Iimpawu zengxolo ephantsi
- Iimpawu zokutshintsha ezigqwesileyo
- Ukuphazamiseka okuncinci kumaza aphezulu
IAplifier yomthombo oqhelekileyo: Ibhloko yesakhiwo esisisiseko
Umthombo oqhelekileyo (CS) amplifier yi-MOSFET elingana ne-common emitter ye-BJT uqwalaselo. Lolona hlobo lwe-amplifier lwe-MOSFET lusetyenziswa kakhulu ngenxa yokuguquguquka kwayo kunye neempawu zokusebenza.
| Ipharamitha | Uphawu | Usetyenziso oluqhelekileyo |
|---|---|---|
| Ukufumana iVoltage | Phezulu (180° shift phase) | Ukwandiswa kwenjongo ngokubanzi |
| Input Imedance | Phezulu kakhulu | Amanqanaba okwandisa amandla ombane |
| Imedance yeziphumo | Phakathi ukuya Phezulu | Amanqanaba okwandisa amandla ombane |
Umbhobho oqhelekileyo (Umlandeli woMthombo) Iamplifier
Uqwalaselo oluqhelekileyo lombhobho, okwaziwa ngokuba ngumlandeli womthombo, lufanelekile kuthelekiso lwe-impedance kunye ne-buffering applications.
Ezona mpawu:
- Ukuzuza amandla ombane
- Akukho kuguqulwa kwesigaba
- I-impedance ephezulu kakhulu
- I-impedance yemveliso ephantsi
Uqwalaselo lweSikhulisi seSango esiQhelekileyo
Ngelixa ingaqhelekanga kune-CS okanye uqwalaselo lweCD, iamplifier yesango eqhelekileyo ibonelela ngeenzuzo ezizodwa kwizicelo ezithile:
| Uphawu | Ixabiso | Inzuzo |
|---|---|---|
| Input Imedance | Phantsi | Ilungele amagalelo omthombo wangoku |
| Imedance yeziphumo | Phezulu | Ukwahluka okugqwesileyo |
| Ukuphendula rhoqo | Egqwesileyo | Ifanelekile kwizicelo ze-frequency ephezulu |
I-Cascode Amplifier: Ubumbeko oluPhezulu
Iamplifier ye-cascode idibanisa ezona mpawu zibalaseleyo zomthombo oqhelekileyo kunye nolungelelwaniso lwesango oluqhelekileyo, olunikezela:
- Ukuphuculwa kokuphendula rhoqo
- Kungcono ukuba wedwa
- Ukunciphisa umphumo weMiller
- I-impedance yemveliso ephezulu
Amandla e-MOSFET Amplifiers
Usetyenziso kwiiNkqubo zeAudio:
- Udidi lwe-AB lwezandisi zomsindo
- Udidi D lokutshintsha i-amplifiers
- Iinkqubo zesandi esinamandla aphezulu
- Izandisi zomsindo wemoto
Ii-Amplifiers ezahlukeneyo zeMOSFET
Izandisi ezahlukeneyo zisebenzisa ii-MOSFET zibalulekile:
- Iamplifiers ezisebenzayo
- Izixhobo zokwandisa izixhobo
- Iziguquli ze-Analog-to-digital
- Ujongano lwenzwa
Iingqwalasela zoyilo oluSebenzayo
| Inkalo yoYilo | Ukuqwalasela |
|---|---|
| Ukukhetha icala | Ukukhetha indawo yokusebenza efanelekileyo yeDC |
| Ulawulo lweThermal | Ukutshatyalaliswa kobushushu kunye nokuzinza |
| Imbuyekezo rhoqo | Uzinzo kwiifrikhwensi eziphezulu |
| Iingqwalasela kuLwayo | Ukunciphisa iimpembelelo zeparasitic |
Ngaba ufuna izisombululo zoBuchule be-MOSFET yeAmplifaya?
Iqela lethu leengcaphephe ligxile kuyilo lweamplifier ye-MOSFET yaso nasiphi na isicelo. Fumana ufikelelo ku:
- Iinkonzo zoyilo oluqhelekileyo
- Uthethwano lobugcisa
- Ukukhetha icandelo
- Ukusebenza kakuhle
Imixholo ephucukileyo kunye neendlela ezizayo
Hlala uphambi kwegophe kunye neendlela ezivelayo kwitekhnoloji ye-amplifier ye-MOSFET:
- GaN MOSFET izicelo
- Izixhobo ze-silicon carbide
- Itekhnoloji yokupakisha ekwinqanaba eliphezulu
- Ukudityaniswa neenkqubo zedijithali
Fumana isiKhokelo sethu esipheleleyo soYilo lwe-Aplifier yeMOSFET
Fumana ufikelelo ngoko nangoko kwisikhokelo sethu soyilo esibanzi, kuquka iischematics, izibalo, kunye nezona nkqubo zingcono.
