Unoziva here chinonzi N-channel MOSFET?

I. Basic chimiro uye kuumbwa

N-channel MOSFET ine zvinhu zvikuru zvinotevera:

Gedhi:iyo control terminal, nekushandura gedhi voltage kudzora conductive chiteshi pakati pechitubu uye dhizaini.· ·

Kwakabva:Ikozvino kubuda kunze, kazhinji kwakabatana nedivi rakashata redunhu.· ·

Drain: ikozvino kupinda, kazhinji yakabatana nemutoro wedunhu.

Substrate:Kazhinji P-mhando semiconductor zvinhu, inoshandiswa se substrate yeMOSFETs.

Insulator:Iri pakati pegedhi uye chiteshi, inowanzogadzirwa nesilicon dioxide (SiO2) uye inoita seyakavharisa.

II. Nheyo yekushanda

Nheyo yekushanda yeN-channel MOSFET yakavakirwa pamagetsi emunda mhedzisiro, inoenderera seizvi:

Mamiriro ekucheka:Kana gedhi remagetsi (Vgs) rakaderera pane chikumbaridzo voltage (Vt), hapana N-mhando yekuitisa chiteshi inoumbwa muP-mhando substrate pazasi pegedhi, uye nekudaro iyo yakachekwa-yekudzika mamiriro pakati penzvimbo uye dhiraivha iripo. uye ikozvino haigoni kuyerera.

Conductivity state:Kana gedhi regedhi (Vgs) rakakwirira kudarika chikumbaridzo voltage (Vt), maburi ari muP-type substrate pasi pegedhi anodzingwa, achigadzira depletion layer. Nekuwedzera kwekuwedzera kwemagetsi egedhi, maerekitironi anokwezvwa pamusoro peP-type substrate, achigadzira N-type conducting channel. Panguva ino, nzira inoumbwa pakati pechitubu uye mvura uye ikozvino inogona kuyerera.

III. Mhando uye maitiro

N-channel MOSFETs inogona kuiswa mumhando dzakasiyana zvichienderana nehunhu hwadzo, seEnhancement-Mode uye Depletion-Mode. Pakati pavo, Enhancement-Mode MOSFETs ari munzvimbo yakachekwa kana gedhi voltage iri zero, uye inoda kuisa yakanaka gedhi voltage kuitira kuti iite; nepo Depletion-Mode MOSFETs yatove mune conductive state kana gedhi voltage iri zero.

N-channel MOSFETs ine akawanda akanakisa maitiro akadai se:

High input impedance:Gedhi uye chiteshi cheMOSFET chakasarudzika neyakavharira dhizaini, zvichikonzera yakanyanyisa kupinza impedance.

Noise yakaderera:Sezvo kushanda kweMOSFET kusingabatanidzi jekiseni uye kusanganiswa kwevatakuri vashoma, ruzha rwakaderera.

Kushandiswa kwemagetsi kushoma: MOSFETs ine yakaderera simba rekushandisa mune ese ari maviri uye kunze kwenyika.

High-speed switching maitiro:MOSFETs ane kukurumidza kukurumidza kushandura uye akakodzera kukwirisa frequency maseketi uye kumhanyisa dhijitari maseketi.

IV. Nzvimbo dzekushandisa

N-channel MOSFETs anoshandiswa zvakanyanya mumhando dzakasiyana dzemagetsi nekuda kwekuita kwavo kwakanaka, senge:

Digital Circuits:Sechinhu chakakosha cheiyo logic gedhi maseketi, inoshandisa kugadzirisa uye kutonga kwemasaini edhijitari.

Analogue circuits:Inoshandiswa sechinhu chakakosha mumaseketi eanalogue akadai seamplifiers uye mafirita.

Power Electronics:Inoshandiswa kudzora magetsi emagetsi emagetsi akadai sekuchinja magetsi uye madhiraivha.

Dzimwe nzvimbo:Zvakadai semwenje we LED, magetsi emotokari, kutaurirana newireya uye mamwe minda anoshandiswawo zvakanyanya.

Muchidimbu, N-channel MOSFET, sechinhu chakakosha semiconductor mudziyo, inoita basa risingadzoreki muhunyanzvi hwemazuva ano hwemagetsi.