Txoj Cai Kev Ua Haujlwm Ntawm Diode

Lub hauv paus ntsiab lus tseem ceeb ntawm lub diode yog ua kom siv lub unidirectional conductivity ntawm PN hlws ris, thiab ntxiv cov hlau lead thiab pob khoom rau PN kev sib tshuam los tsim ib lub diode.

Crystal diode yog PN kev sib tshuam tsim los ntawm P hom semiconductor thiab N hom semiconductor. Qhov chaw them nqi txheej yog tsim rau ntawm ob sab ntawm nws qhov interface, thiab ib qho kev tsim hluav taws xob rau tus kheej. Thaum tsis muaj qhov hluav taws xob siv hluav taws xob, qhov sib txawv tam sim no tshwm sim los ntawm cov neeg nqa khoom sib txawv ntawm ob sab ntawm PN kev sib tshuam yog sib npaug rau qhov hluav taws xob tam sim no los ntawm tus kheej tsim hluav taws xob thiab nyob hauv hluav taws xob sib npaug.

Thaum muaj qhov zoo ntawm qhov tsis zoo ntawm qhov hluav taws xob sab nraud, kev sib koom ua ke ntawm cov hluav taws xob sab nraud thiab qhov hluav taws xob ua rau nws tus kheej ua rau cov neeg nqa khoom diffusion tam sim no nce thiab ua rau muaj qhov zoo tam sim no. Thaum muaj qhov hluav taws xob rov qab tsis zoo sab nraud, sab nraud hluav taws xob sab nraud thiab nws tus kheej ua hluav taws xob hluav taws xob tau ntxiv dag zog ntxiv, ua rau qhov rov qab saturation tam sim no ywj siab ntawm qhov rov qab tsis zoo voltage nyob rau hauv ib qho kev rov qab voltage ntau.