Umhlahlandlela ophelele we-MOSFET Amplifiers: Ukusuka ku-Basic to Advanced Applications

Umhlahlandlela ophelele we-MOSFET Amplifiers: Ukusuka ku-Basic to Advanced Applications

Isikhathi Sokuthumela: Dec-10-2024

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.

izinhlobo ze-mosfet amplifiers

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

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.