Ufuna ukwenza kahle izikhulisi ze-MOSFET? Usendaweni efanele. Lo mhlahlandlela obanzi uhlukanisa yonke into kusukela emiqondweni eyisisekelo kuya ezinhlelweni zokusebenza ezisezingeni eliphezulu, ikusiza ukuthi uqonde izinhlobo ezihlukahlukene zezikhulisi ze-MOSFET kanye nokusetshenziswa kwazo okungokoqobo.
Ukuqonda Okubalulekile kwe-MOSFET Amplifier
Ama-amplifiers e-MOSFET aguqule izinto zikagesi zesimanje, anikeza ukusebenza okuphakeme mayelana nokusebenza kahle kwamandla, ukusabela kwemvamisa, kanye nokuba lula kwesekethe. Ngaphambi kokungena ezinhlotsheni ezithile, ake siqonde ukuthi yini eyenza izikhulisa-zwi ze-MOSFET zikhetheke.
Izinzuzo Eziyinhloko Ze-MOSFET Amplifiers
- I-impedance yokufaka ephezulu uma iqhathaniswa nezikhulisamandla ze-BJT
- Ukuzinza okungcono kwe-thermal
- Izici zomsindo ophansi
- Izici ezinhle zokushintsha
- Ukuhlanekezela okuncane kumafrikhwensi aphezulu
Isikhulisi Esivamile Somthombo: Ibhulokhi Yokwakha Eyisisekelo
Isikhulisi esivamile somthombo (CS) silingana ne-MOSFET nokucushwa okuvamile kwe-emitter ye-BJT. Iwuhlobo lwe-amplifier lwe-MOSFET olusetshenziswa kakhulu ngenxa yokuguquguquka nezici zokusebenza kwalo.
Ipharamitha | Isici | Uhlelo lokusebenza olujwayelekile |
---|---|---|
I-Voltage Gain | Phezulu (180° isigaba sokushintsha) | Ukukhulisa inhloso evamile |
Okokufaka Impedance | Phezulu kakhulu | Izigaba zokukhulisa amandla kagesi |
Ukuphazamiseka Kokukhiphayo | Kuphakathi kuya Ekuphakameni | Izigaba zokukhulisa amandla kagesi |
Isikhulisi sesikhulisi se-Common Drain (Umlandeli Womthombo).
Ukucushwa okujwayelekile kokukhipha amanzi, okwaziwa nangokuthi umlandeli womthombo, kulungele izinhlelo zokusebenza zokufanisa ne-buffering.
Izici Eziyinhloko:
- Ukuzuza kwe-Unity voltage
- Akukho ukuguqulwa kwesigaba
- I-impedance ephezulu kakhulu
- I-impedance yokukhipha okuphansi
Ukucushwa kwe-Common Gate Amplifier
Nakuba kungavamile kunokulungiselelwa kwe-CS noma kwe-CD, isikhulisi sesango esivamile sinikeza izinzuzo ezihlukile kuzinhlelo zokusebenza ezithile:
Isici | Inani | Zuza |
---|---|---|
Okokufaka Impedance | Phansi | Ilungele okokufaka komthombo wamanje |
Ukuphazamiseka Kokukhiphayo | Phezulu | Ukuzihlukanisa okuhle kakhulu |
Impendulo Yemvamisa | Kuhle kakhulu | Ifanele izinhlelo zokusebenza zefrikhwensi ephezulu |
I-Cascode Amplifier: Ukucushwa Okuthuthukile
I-amplifier ye-cascode ihlanganisa izici ezinhle kakhulu zomthombo ovamile nokulungiselelwa kwesango elivamile, elinikeza:
- Impendulo yefrikhwensi ethuthukisiwe
- Ukuzihlukanisa okungcono
- Umphumela we-Miller owehlisiwe
- I-impedance ephezulu yokukhipha
Amandla MOSFET Amplifiers
Izinhlelo zokusebenza Ezinhlelweni Zomsindo:
- Izikhulisi zomsindo zeClass AB
- Ama-amplifier ekilasi D
- Amasistimu omsindo anamandla aphezulu
- Izikhulisi zomsindo wemoto
Izikhulisi ezihlukile ze-MOSFET
Ama-amplifiers ahlukene asebenzisa ama-MOSFET abalulekile ku:
- Ama-amplifiers asebenzayo
- Ama-amplifiers wezinsimbi
- Iziguquli ze-Analog-to-digital
- Izixhumanisi zenzwa
Ukucatshangelwa Kwedizayini Esebenzayo
I-Design Aspect | Ukucabangela |
---|---|
Ukuchema | Ukukhetha okufanelekile kwendawo yokusebenza ye-DC |
Ukuphathwa Kwezishisayo | Ukuchithwa kokushisa nokuzinza |
Isinxephezelo Semvamisa | Ukuzinza kumafrikhwensi aphezulu |
Ukucatshangelwa kwesakhiwo | Ukunciphisa imiphumela ye-parasitic |
Udinga Izisombululo Zesikhulisamandla Ze-MOSFET Ezobuchwepheshe?
Ithimba lethu lochwepheshe lisebenza ngokukhethekile ngemiklamo ye-MOSFET ye-amplifier yanoma yiluphi uhlelo lokusebenza. Thola ukufinyelela ku-:
- Amasevisi okuklama ngokwezifiso
- Ukubonisana kwezobuchwepheshe
- Ukukhetha ingxenye
- Ukuthuthukisa ukusebenza
Izihloko Ezithuthukile namathrendi Azayo
Hlala uphambi kwejika ngamathrendi asafufusa kubuchwepheshe be-amplifier be-MOSFET:
- GaN MOSFET izicelo
- Amadivayisi we-silicon carbide
- Ubuchwepheshe bokupakisha obusezingeni eliphezulu
- Ukuhlanganiswa nezinhlelo zedijithali
Thola Umhlahlandlela Wethu Ophelele We-MOSFET Amplifier Design
Thola ukufinyelela okusheshayo kumhlahlandlela wethu wedizayini ophelele, ohlanganisa izikimu, izibalo, nezinqubo ezihamba phambili.