Video: Dab tsi yog qhov thim rov qab?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
rov qab bias Kev siv d.c. hluav taws xob uas tiv thaiv los yog txo cov dej ntws tam sim no hauv diode, transistor, thiab lwm yam. Piv txwv li, qhov tsis txaus ntseeg tam sim no yuav ntws los ntawm diodew thaum nws cov cathode tau ua zoo dua li nws cov anode; lub diode ishen hais tias yuav thim rov qab biased . Muab piv rau pem hauv ntej kev tsis ncaj ncees . Ib phau ntawv txhais lus ntawm xam.
Tsis tas li lo lus nug yog, dab tsi yog kev cia siab rau pem hauv ntej thiab thim rov qab?
Cov Forward bias txo qhov tsis kam ntawm thediode whereas lub thim rov qab bias nce qhov tsis kam ntawm lub diode. Hauv pem hauv ntej biasing cov tam sim no yooj yim ntws los ntawm Circuit Court whereas rov qab bias tsis pub tam sim no ntws los ntawm nws.
Yuav ua li cas rau reverse bias? Rov qab Biased PN Junction Diode Cov txiaj ntsig tau tshwm sim yog tias cov txheej txheem depletion loj hlob zuj zus mus rau qhov tsis muaj hluav taws xob thiab qhov thiab nthuav tawm qhov siab impedancepath, yuav luag ib qho insulator. Qhov tshwm sim yog tias qhov muaj peev xwm muaj peev xwm tsim tau yog li tiv thaiv tam sim no los ntawm cov khoom siv hluav taws xob.
Kuj Paub, dab tsi yog qhov rov qab bias diode?
Thaum voltage yog siv nyob rau hauv ib diode nyob rau hauv xws li deb ntawd diode tso cai tam sim no, lub diode yog hais tias yuav mus tom ntej- tsis ncaj ncees lawm . Thaum voltage yog siv nyob rau hauv ib diode nyob rau hauv xws li ib txoj kev uas diode txwv tam sim no, lub diode yog hais tias yog thim rov qab - tsis ncaj ncees lawm.
Reverse voltage yog dab tsi?
Cov rov qab voltage yog cov hluav taws xob dropacross lub diode yog hais tias tus hluav taws xob nyob rau hauv lub cathode yog ntau tshaj li qhov hluav taws xob ntawm lub anode (yog tias koj txuas + mus rau cathode). Qhov no feem ntau yog siab dua li pem hauv ntej hluav taws xob . Raws li nrog rau pem hauv ntej hluav taws xob , ib tug tam sim no yuav flowif lub txuas hluav taws xob tshaj tus nqi no.
Pom zoo:
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