Nigute ushobora guhitamo MOSFET?

Hariho ubwoko bubiri bwa MOSFETs, N-umuyoboro na P-umuyoboro. Muri sisitemu y'amashanyarazi,MOSFETSbirashobora gufatwa nkibikoresho byamashanyarazi. Guhindura N-umuyoboro MOSFET ikora iyo voltage nziza yongewe hagati y irembo nisoko. Mugihe ikora, ikigezweho kirashobora kunyura muri switch kuva kumazi kugera kumasoko. Hariho kurwanya imbere hagati yamazi nisoko yitwa on-resistance RDS (ON).

 

MOSFET nkigice cyibanze cya sisitemu yamashanyarazi, Guanhua Weiye akubwira uburyo wahitamo neza ukurikije ibipimo?

I. Guhitamo Umuyoboro

Intambwe yambere muguhitamo igikoresho gikwiye kubishushanyo byawe ni ukumenya niba wakoresha N-umuyoboro cyangwa P-umuyoboro MOSFET. mu mbaraga zikoreshwa, MOSFET irashingiwe kandi umutwaro uhujwe na trunk voltage mugihe MOSFET ikora voltage ntoya kuruhande. N-umuyoboro MOSFETs ugomba gukoreshwa muburyo bwo guhinduranya uruhande ruto bitewe no gusuzuma voltage isabwa kuzimya cyangwa kuzimya igikoresho. Guhinduranya umuyagankuba mwinshi bigomba gukoreshwa mugihe MOSFET ihujwe na bisi hamwe nubutaka bwubutaka.

 

II. Guhitamo Umuyoboro na Kijyambere

Iyo hejuru ya voltage yagenwe, niko igiciro cyibikoresho kiri hejuru. Ukurikije ubunararibonye bufatika, voltage yagenwe igomba kuba irenze voltage ya trunk cyangwa voltage. Icyo gihe gusa irashobora gutanga uburinzi buhagije bwo kunanirwa MOSFET. Mugihe uhisemo MOSFET, voltage ntarengwa kuva kumazi kugera kumasoko igomba kugenwa.

Muburyo bwo gukomeza kuyobora ,.BYINSHIni muburyo butajegajega, iyo ikigezweho kinyuze mubikoresho. Imitsi ya pulse ni mugihe hari imiyoboro minini (cyangwa impanuka ya pex) inyura mubikoresho. Umuyoboro ntarengwa umaze kugenwa muri ibi bihe, hitamo gusa igikoresho gishobora kwihanganira icyerekezo kinini.

 

Icya gatatu, gutakaza imiyoboro

Kuberako on-resistance itandukana nubushyuhe, gutakaza ingufu bizatandukana. Kubishushanyo mbonera, ikoreshwa rya voltage yo hasi irasanzwe, mugihe mugushushanya inganda, voltage ndende irashobora gukoreshwa.

 

Sisitemu Ibisabwa Ubushyuhe

Kubijyanye no gukonjesha sisitemu, Crown Worldwide irakwibutsa ko hari ibintu bibiri bitandukanye bigomba gusuzumwa, ikibazo kibi nikibazo nyacyo. Koresha imibare mibi cyane kuberako ibisubizo bitanga intera nini yumutekano kandi birashobora kwemeza ko sisitemu itazananirwa.

UwitekaBYINSHIni buhoro buhoro gusimbuza triode mumuzunguruko uhuriweho kubera gukoresha ingufu nke, imikorere ihamye, hamwe no kurwanya imirasire. Ariko iracyari nziza cyane, kandi nubwo inyinshi murizo zimaze kuba zifite diode zo gukingira, zirashobora kwangirika mugihe zititabwaho. Kubwibyo, nibyiza gukenera kwitonda mubisabwa.