LED Digital Tube Kev Ua Haujlwm Yooj Yim Tshawb Pom Txoj Kev Taw Qhia

Lub tshuab LED digital raj tuaj yeem tshawb pom qhov tsis ncaj ncees ntawm LED cov raj. Cov kev cai tsis ncaj ncees ntawm LED cov raj yuav tsum muaj cov xim nruab nrab, tsis muaj kev hloov pauv hauv zos thiab huab cua npuas. Nyob rau hauv lub premise ntawm amateur, nws yuav siv tau raws li kev soj ntsuam ntxiv. Qhov tsis zoo electrode ntawm 3 volt qhuav roj teeb yog tsau rau pej xeem qhov tsis zoo ntawm LED cov raj. Thaum cov kab no kov qhov zoo kawg nkaus ntawm qee yam mob stroke, qhov mob stroke yuav tsum tau tshwm sim. Hauv txoj kev yooj yim no, koj tuaj yeem tshawb xyuas seb lub raj digital puas muaj tus cwj mem tawg (ib qho kev mob stroke tsis tuaj yeem pom), txawm tias tus cwj mem (qee qhov strokes txuas nrog txoj kev), thiab nws tuaj yeem muab piv nrog qhov muaj zog thiab tsis muaj zog. ntau hom mob stroke. Yog tias koj tuaj yeem tshawb xyuas cov co-anode digital tube, koj tsuas yog yuav tsum hloov lub roj teeb zoo thiab tsis zoo los hloov cov kab. Txoj kev yog tib yam li saum toj no. LED digital tube Txhua strokes ua haujlwm tam sim no ILED yog hais txog 5 —Nyob nruab nrab ntawm 10mA, yog tias qhov tam sim no yuav rhuav tshem cov raj digital thaum Lub Xyoo Tshiab Eve, nws yog ib qho tsim nyog yuav tsum tau ua kom cov dej ntws tawm. Tus nqi kuj tuaj yeem xam raws li tus qauv: R tus nqi = (u —ULED) / ILED Lub tsheb tau nruab nrog LED teeb hlaws U ntxiv rau ob lub taub hau hluav taws xob ntawm LED, thiab ULED yog LED cov raj rau txhua qhov hluav taws xob (txog 2 volts). HFE sockets uas tswj cov ntsuas thoob ntiaj teb tau yooj yim tshawb xyuas qhov chaw nyob ntawm LED cov raj. Thaum xaiv NPN iav, C qhov zoo, thiab lub hli tsis zoo. Piv txwv li, thaum kuaj xyuas LTS547R -type co -cathode LED cov raj, ntxig ib qho -Tshuag cov ncauj lus kom ntxaws qhia xov hlau los ntawm Eh qhov, thiab cov xaim xaim mus rau qhov kawg 9 ncej (ko taw thiab ob ko taw txuas nrog sab hauv, tuaj yeem. xaiv ib tug li?); C-qhov ua rau ib lub xaim mus cuag cov electrodes ntawm txhua ntu nyob rau hauv kev txiav txim, uas yuav tsum tau muab cais los ntawm cov coj strokes.