Yuav ua li cas siv tus mullamalat kom paub txog polarity thiab zoo ntawm ib tug diode
Xyuas Qhov Cai: Raws li Unidirectional conductivity ntawm diodes, diodes nrog kev ua tau zoo tau qis dua kev tiv thaiv thiab kev thim rov qab tiv taus; Qhov ntau dua qhov sib txawv ntawm ob qhov tseem ceeb no, zoo dua. Yog tias lawv zoo sib xws, nws qhia tau tias kev ua tau zoo ntawm Diode yog neeg pluag lossis tau raug puas lawm.
Thaum ntsuas kev ntsuas, xaiv cov "Ohm" ntau ntawm cov multimeter. Feem ntau, siv R x100 lossis R xlk iav hloov ntawm Rx1 lossis R x10k iav. Vim tias tam sim no nyob rau hauv RXL hom yog ib yam nkaus, nws yog qhov yooj yim rau hlawv tawm ntawm Diode, thiab sab hauv hom yog qhov yooj yim dhau, uas yog qhov yooj yim los tsoo cov diode
Kev ntsuas txuj ci: Txuas ob lub ntsuas cov pob zeb rau ob electrodes ntawm diode thiab nyeem ntsuas ntsuas tus nqi; Tom qab ntawd pauv lub ntsuas lub ntsuas thiab ntsuas dua, tau sau cov ntawv sau ntawm tus nqi thib ob. Yog tias muaj qhov sib txawv tseem ceeb ntawm ob zaug, nws qhia tau tias cov diode muaj kev ua tau zoo; Thiab raws li txoj kev sib txuas ntawm cov nqaj hlau nrog qhov kev sib txuas ntawm daim dikas tsis zoo (xa mus rau lub chaw sib txuas ntawm daim dikas Vim tias tus ncej zoo ntawm cov hluav taws xob sab hauv ntawm cov mottimeter yog txuas nrog "-" tsis zoo ntawm lub zog sab hauv fais fab yog txuas nrog "+" "(" ") ntawm multimeter.
Yog tias cov txiaj ntsig tsis kam ntsuas ob zaug yog ob qho tib si me me, nws qhia tau tias cov diode tau tawg; Yog tias cov txiaj ntsig tsis kam ntsuas ob zaug yog ob qho tib si heev, nws qhia tau tias cov diode twb tawg sab hauv sab hauv; Yog tias cov txiaj ntsig tsis kam ntsuas ob zaug tsis txawv txawv, nws qhia tau kev ua haujlwm tsis zoo ntawm Diode. Hauv cov xwm txheej no, Diode tsis tuaj yeem siv.
Nws yuav tsum tau taw qhia tias vim yog qhov tsis yog tus cwj pwm ntawm diodes, sib txawv ntawm kev tawm tsam ntawm dodes nrog txawv tiv taus qib ntawm ib tug multimeter; Hauv kev siv tiag tiag, ntws tawm ntawm Diode yuav loj dua, yog li cov nqi tiv taus los ntawm diode yuav me dua.
