Thaum lub semiconductor diode qhib, nws sib npaug rau qhov hloov pauv tau raug kaw (lub voj voog txuas nrog) thiab thaum nws raug tua, nws sib npaug rau qhov hloov pauv tau qhib (lub Circuit Court raug txiav tawm). Yog li ntawd, lub diode tuaj yeem siv los ua kev hloov pauv. Tus qauv yog 1N4148. Vim lub unidirectional conductivity ntawm lub semiconductor diode, PN hlws ris yog conductive nyob rau hauv lub zoo bias voltage, thiab cov kuj nyob rau hauv lub conductive lub xeev yog heev me me, txog kaum rau pua pua ohms; Nyob rau hauv lub reverse bias voltage, nws yog nyob rau hauv lub xeev tawm, thiab nws kuj yog loj. Feem ntau, silicon diode nyob rau hauv thaj tsam ntawm 10 Μ Saum toj no Ω, lub germanium raj kuj muaj kaum tawm txhiab mus rau pua txhiab ohms. Siv cov yam ntxwv no, lub diode yuav ua lub luag haujlwm ntawm kev tswj cov tam sim no rau lossis tawm hauv Circuit Court, thiab dhau los ua qhov hloov hluav taws xob zoo tagnrho.
Cov lus piav qhia saum toj no yog siv tau rau txhua lub diode zoo tib yam, lossis lub hauv paus ntsiab lus ntawm diode nws tus kheej. Tab sis rau kev hloov diodes, qhov tseem ceeb tshaj plaws yog qhov ua tau zoo nyob rau hauv cov xwm txheej siab.
Nyob rau hauv lub siab zaus, lub barrier capacitance ntawm lub diode qhia tsis tshua muaj impedance thiab yog txuas nrog nyob rau hauv parallel nrog lub diode. Thaum lub capacitance ntawm barrier capacitor nce mus txog ib theem, qhov kev hloov pauv ntawm lub diode yuav cuam tshuam loj heev. Nyob rau hauv huab cua txias, lub diode yuav luv luv Circuit Court, thiab lub high-frequency tam sim no yuav tsis dhau los ntawm lub diode, tab sis ncaj qha bypass lub barrier capacitor, thiab lub diode yuav poob. Txawm li cas los xij, qhov barrier capacitance ntawm switching diode feem ntau yog me me, uas yog sib npaug rau thaiv qhov barrier capacitance, ua tiav cov txiaj ntsig ntawm kev tswj xyuas qhov zoo unidirectional conductivity nyob rau hauv siab zaus.
