Video: Koj txhais li cas los ntawm kev tsis ncaj ncees rau pem hauv ntej thiab thim rov qab ntawm pn junction diode?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Kev sib tshuam Diode Cim thiab Static I-VCharacteristics
Nyob ntawm hluav taws xob axis saum toj no, " ReverseBias ” hais txog tus sab nraud hluav taws xob muaj peev xwm uas ua rau kom muaj peev xwm barrier. Ib sab nraud hluav taws xob uas txo qhov muaj peev xwm barrier yog hais tias ua nyob rau hauv " Forward Bias ”kev taw qhia.
Yog li ntawd, dab tsi yog rau pem hauv ntej thiab 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 pem hauv ntej - tsis ncaj ncees lawm . Thaum voltage siv thoob plaws diode nyob rau hauv xws li ib txoj kev uas diode txwv tsis pub, cov diode yog hais tias yog thim rov qab - tsis ncaj ncees lawm.
Kuj Paub, dab tsi yog qhov kev tsis ncaj ncees ntawm pn junction diode? Forward biased p-n hlws ris diode . Cov txheej txheem uas, a p-n sib txuas diode tso cai rau hluav taws xob tam sim no nyob rau hauv lub xub ntiag ntawm thov voltage yog hu ua pem hauv ntej biased p-njunction diode.
Ib yam li ntawd, dab tsi yog qhov kev sib tw rau pem hauv ntej thiab thim rov qab ntawm pn kev sib tshuam?
Ib qho ntawm qhov sib txawv loj ntawm cov pem hauv ntej thiab cov rov qab biasing yog in pem hauv ntej biasing lub davhlau ya nyob twg zoo ntawm lub roj teeb txuas nrog cov khoom siv p-typesemiconductor thiab lub davhlau ya nyob twg tsis zoo txuas nrog cov khoom siv n-hom semiconductor.
Dab tsi yog txhais los ntawm kev tsis ncaj ncees rov qab?
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 bias ." rov qab bias ."
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