Daim ntawv thov ntawm multimeter ntawm Crystal Diode Nrhiav
Ib lub lead ua ditstal diode yog ib qho cuab yeej tsim ntawm PN qauv nrog unidirectional conductivity. Nws nthuav tawm cov kev tiv thaiv qis thaum ua cov kev taw qhia tom ntej, uas yog hu ua rau pem hauv ntej tsis kam ntawm lub transistor. Thaum thim rov qab hais txog, nws ua rau pom kev kub tsis kam, uas yog hu ua thim rov qab tiv thaiv ntawm tus transistor. Hauv ntej, kev ua tau zoo ntawm cov siv lead ua kom muaj kev txiav txim siab yooj yim raws li kev ntsuas ntawm kev ua haujlwm tsis zoo.
1. Nrhiav kom meej ntawm dog dig
Teem lub multatatus rau hom kev tawm tsam ntawm r * 100 lossis r * 1k, txuas cov kev ua haujlwm liab thiab dub ntawm ob qho kawg ntawm Diode sib luag. Yog tias ntsuas kev tawm tsam yog qhov me me (qis dua ob peb txhiab OHMS), tom qab ntawd sib pauv cov tw thiab dub probes thiab txuas lawv rau ob xaus ntawm Diode. Yog tias ntsuas kev tawm tsam yog qhov loj (ntau pua txhiab OHMS), nws qhia tau tias Diode muaj unidirectional conduction thiab cov khoom zoo.
Yog tias rau pem hauv ntej thiab thim rov qab los ntawm Diode yog ntsuas kom muaj me me, txawm tias xoom, nws qhia tau tias muaj luv circuit Court sab hauv lub raj; Yog tias ob qho tib si rau pem hauv ntej thiab thim rov qab los ntawm Diode raug ntsuas kom muaj siab, nws qhia tau tias muaj qhov qhib Circuit Court sab hauv lub raj.
2. Nrhiav tau ntawm voltage regulator diode
Tso qhov tso rau hauv R * 1K ntau thiab ntsuas nws cov khoom ua ntej. Txuas cov kev sojntsuam dub ntawm ntau sib deev ntawm qhov zoo ntawm cov kev ntsuas hluav taws xob ntawm cov kev sojntsuam liab rau qhov tsis zoo ntawm qhov ntsuas hluav taws xob tsis zoo ntawm; Thaum ntsuas thim rov qab tiv thaiv, kev sib txuas ntawm ob qhov kev sim ua yog raws nraim. Feem ntau, kev tiv taus rau pem hauv ntej yog ntau txhiab abms rau kaum ntawm txhiab tus offs, thiab rov qab tiv taus yog ntau pua kiloohms lossis ntau dua.
3. Nrhiav tau ntawm lub teeb emitting dones
Tso qhov tso rau hauv R * 10K ntau yam. Yog tias ntsuas cov kev tawm tsam rau pem hauv ntej yog tsis pub dhau 30K ω thiab muaj qhov ci ci ntawm cov nqi LED ntau dua li ntau pua Kiloothms, nws qhia tau tias cov LED tau sim ua haujlwm ib txwm ua.
