LED Digital Tube Performance Njira Yosavuta Yodziwira Njira Yoyambira

Makina a chubu cha digito cha LED amatha kungozindikira zoyipa za chubu la digito la LED. Zofunikira zosayenera za chubu la digito la LED zimafuna mtundu wapakati, osasintha mtundu wamba komanso ma thovu amlengalenga. Pansi pa zochitika za amateur, zitha kugwiritsidwa ntchito ngati kuwunika kwina. Ma elekitirodi olakwika a mabatire owuma a 3 volt amakhazikika pazambiri zoyipa zachubu ya digito ya LED. Mzerewu ukakhudza mbali zabwino za sitiroko inayake, sitirokoyo iyenera kuwonetsedwa. Mwanjira yosavuta iyi, mutha kuwona ngati chubu ya digito ili ndi cholembera chosweka (sitiroko inayake siyingawonetsedwe), ngakhale cholembera (zikwapu zina zimalumikizidwa ndi msewu), ndipo zitha kufananizidwa ndi kulimba ndi kufooka kwa mitundu yosiyanasiyana ya matenda. Ngati mungayang'ane co -anode digito chubu, muyenera kusintha batire zabwino ndi mizati zoipa kusintha mzere. Njirayi ndi yofanana ndi pamwambapa. LED digito chubu Chikwapu chilichonse chimagwira ntchito ILED yamakono ili pafupi 5 —Pakati pa 10mA, ngati zamakono zidzawononga chubu cha digito pa Chaka Chatsopano, m'pofunika kuwonjezera kukana kwa kutuluka. Mtengo wotsutsa ukhoza kuwerengedwa motsatira ndondomekoyi: R mtengo = (u —ULED)/ILED Galimotoyi imayikidwa ndi nyali ya LED U kuti iwonjezere mphamvu ziwiri zamutu wa LED, ndipo ULED ndi chubu cha digito cha LED pamagetsi aliwonse (pafupifupi 2 volts). Masiketi a HFE omwe amawongolera ma digito a universal mita amatha kuyang'ana mosavuta malo owala a machubu a digito a LED. Posankha zida za NPN, dzenje la C ndi labwino, ndipo mweziwo ndi woipa. Mwachitsanzo, poyang'ana LTS547R -mtundu wa co -cathode LED digito chubu, ikani waya wotsogola wamtundu umodzi-stock kuchokera ku dzenje la Eh, ndipo waya amatsogolera kumapeto kwa 9 pole (phazi ndi phazi lachiwiri zimalumikizidwa mkati, zimatha kusankha ngati?); C -hole amatsogolera waya kukhudzana maelekitirodi aliyense gawo mu dongosolo, amene akhoza kupatukana lolingana zikwapu.