Ngaba uyazi malunga nokuncipha kwee-MOSFETs?

Iinkcazelo kunye neempawu

INGCACISO: UkunciphaI-MOSFETluhlobo olukhethekileyo lweI-MOSFETekwazi ukuqhuba umbane kuba abathwali sele bekho kumjelo wayo xa i-voltage yesango ingu-zero okanye ngaphakathi koluhlu oluthile. Oku kuchasene nokuphuculaIi-MOSFETsefuna ixabiso elithile lombane wesango ukwenza umjelo wokuqhuba.

Iimpawu: Uhlobo lokuphelelwaI-MOSFETineenzuzo ze-impedance ephezulu, ukuvuza okuphantsi kwangoku kunye ne-impedance ephantsi yokutshintsha. Ezi mpawu zenza ukuba zixabiseke kuluhlu olubanzi lwezicelo kuyilo lwesekethe.

UmGaqo wokuSebenza

Umgaqo wokusebenza wokunciphisaIi-MOSFETsinokulawulwa ngokuguqula i-voltage yesango ukulawula inani labathwali kwitshaneli kwaye ngaloo ndlela ikhoyo ngoku. Inkqubo yokusebenza inokushwankathelwa kwezi zigaba zilandelayo:

Ilizwe elalelweyo: Xa isango lombane lingaphantsi kombane obalulekileyo phakathi kwetshaneli kunye nomthombo, isixhobo sikwimeko engavumelekanga kwaye akukho mbane udlulayo.I-MOSFET.

Ilizwe lokuchasa elibi: Njengoko i-voltage yesango inyuka, intlawulo iqala ukwakha kwitshaneli, idala umphumo ochaseneyo. Ngokulungelelanisa i-voltage yesango, amandla okuchasana okungalunganga anokulawulwa, ngaloo ndlela ulawula okwangoku kwijelo.

EMBUTHENI: Xa isango lombane liqhubeka nokunyuka ngaphaya kwamandla ombane abalulekileyo,iMOSFETingena kwi-ON karhulumente kunye nenani elikhulu leelektroni kunye nemingxuma zithuthwa ngejelo, ukudala okubalulekileyo okwangoku.

Ukwaneliseka: Kwi-state, i-current kwi-channel ifikelela kwinqanaba lokuzalisa, apho ukuqhubeka nokunyusa i-voltage yesango akusayi kwandisa kakhulu okwangoku.

Ilizwe lokuvala(qaphela: inkcazo ye "cutoff state" apha inokwahluka kancinane kolunye uncwadi ngenxa yokunciphaIi-MOSFETssoloko uqhuba phantsi kweemeko ezithile): Phantsi kweemeko ezithile (umzekelo, utshintsho olugqithisileyo kumbane wesango), ukunciphaI-MOSFETinokungena kwisimo sokuqhuba okuphantsi, kodwa ayinqunyulwanga ngokupheleleyo.

IiNdawo zokuSebenza

Uhlobo lokunciphaIi-MOSFETsbanoluhlu olubanzi lwezicelo kwiinkalo ezininzi ngenxa yeempawu zabo zokusebenza ezizodwa:

Ulawulo lwamandla: Isebenzisa i-impedance yayo ephezulu kunye nokuvuza okuphantsi kweempawu zangoku ukufezekisa ukuguqulwa kwamandla okusebenzayo kwiisekethe zolawulo lwamandla.

Iisekethe ze-Analog kunye nedijithali: dlala indima ebalulekileyo kwiisekethe ze-analog kunye nedijithali njengento yokutshintsha okanye imithombo yangoku.

Ukuqhuba imoto: Ulawulo oluchanekileyo lwesantya semoto kunye nokuqhuba lufezekiswa ngokulawula ukuqhutywa kunye nokunqunyulwa kweIi-MOSFETs.

Inverter Circuit: Kwiinkqubo zokuvelisa amandla elanga kunye neenkqubo zonxibelelwano zikanomathotholo, njengenye yezinto eziphambili ze-inverter, ukuqonda ukuguqulwa kwe-DC kwi-AC.

Umlawuli wamandla ombane: Ngokulungelelanisa ubungakanani bombane ophumayo, iqonda imveliso ezinzileyo yombane kwaye iqinisekisa umsebenzi oqhelekileyo wezixhobo zombane.

icaveat

Kwizicelo eziphathekayo, kuyimfuneko ukukhetha ukuchithwa okufanelekileyoI-MOSFETimodeli kunye neeparamitha ngokweemfuno ezithile.

Ukusukela uhlobo lokunciphaIi-MOSFETsisebenza ngokwahlukileyo kuhlobo lwesixhasiIi-MOSFETs, zifuna ingqalelo ekhethekileyo kuyilo lwesiphaluka kunye nokulungiswa.

Isishwankathelo, uhlobo lokunciphisaI-MOSFET, njengenxalenye ebalulekileyo ye-elektroniki, inoluhlu olubanzi lwezicelo zokusetyenziswa kwintsimi ye-electronics. Ngenkqubela phambili eqhubekayo yesayensi kunye nobuchwepheshe kunye nokwanda kwemfuno yesicelo, ukusebenza kwayo kunye nomda wokusetyenziswa kuya kuqhubeka nokwandisa nokuphucula.