#Txhua Cathode thev naus laus zis
Tom qab xyoo ntawm txoj kev txhim kho, cov pa pom zoo ib txwm coj los teeb tsa tau tsim cov khoom lag luam ruaj khov, uas tau txhawb nqa kev ua kom nrov npe ntawm cov coj zaub.Yog li cas kuj tseem muaj qhov tsis zoo ntawm lub vijtsam kub lub cev ntau dhau thiab siv lub zog ntau dhau. LED teeb pom kev siv tshuab thev naus laus zis, nws tau nyiam mloog zoo hauv kev lag luam.
#Dab tsi yog thev naus laus zis cathode?
& quot; Common cathode" hais txog cov txheej txheem siv hluav taws xob cathode. Qhov tseeb nws yog ib hom kev coj ua txuag hluav taws xob thev naus laus zis.Nws hais txog cov txheej txheem cathode uas siv los muab lub zog rau lub vijtsam, uas yog, R, G, B tau muab cais tawm, thiab tam sim no thiab qhov hluav taws xob tau muab faib rau RGB teeb hlaws. . Vim tias R, G, B teeb hlaws xav tau qhov ua haujlwm zoo tshaj plaws thiab tam sim no tsis zoo ib yam, yog li qhov tam sim no dhau los ntawm cov hlaws teeb thiab tom qab ntawd mus rau qhov tsis zoo electrode ntawm IC, qhov poob qis rau pem hauv ntej yuav raug txo, thiab sab hauv tsis kam kev coj ua yuav raug txo kom tsawg.
#Dab tsi yog qhov sib txawv ntawm cov cathode thiab cov anode coj coj?
1. txoj kev siv fais fab sib txawv
hom cathode lub zog siv hluav taws xob yog qhov tam sim no dhau los ntawm cov hlaws teeb thiab tom qab ntawd mus rau qhov tsis zoo electrode ntawm IC, yog li ntawd qhov poob qis rau pem hauv ntej thiab kev tiv thaiv sab hauv ntawm kev ua haujlwm kuj tseem raug txo.
Cov anode nquag txhais tau tias tam sim no ntws los ntawm PCB pawg thawj coj mus rau cov hlaws teeb, thiab muab lub zog rau RGB sib luag, uas ua rau muaj zog loj dua rau qhov poob qhov hluav taws xob ntawm Circuit.
2. cov khoom siv sib txawv:
Cov cathode nquag, nws sib cais muab tam sim no thiab qhov hluav taws xob rau RGB, RGB teeb hlaws muaj qhov sib txawv ntawm qhov xav tau. Qhov hluav taws xob ntawm cov hlaws teeb liab yog li 2.8V, thiab qhov hluav taws xob ntawm cov hlaws xiav thiab ntsuab yog txog 3.8V,. Cov khoom siv hluav taws xob no tuaj yeem ua tiav lub zog muab hluav taws xob thiab lub zog nrog qhov poob qis, cov cua sov tsim los ntawm kev coj ua thaum lub sijhawm ua haujlwm qis dua. lub sijhawm no, RGB qhov hluav taws xob tau sib koom ua ke 5V raws li lub zog fais fab P=UI, thaum qhov tam sim no tsis tu ncua, qhov hluav taws xob ntau dua, lub zog siab dua. Ntawd yog, kev siv hluav taws xob ntau dua, tib lub sijhawm, coj zaub kuj tsim hluav taws xob ntau thaum ua haujlwm
#Vim li cas cov cathode coj ua zaub muaj cua sov qis dua?
Qhov tshwj xeeb tshaj plaws cathode fais fab mov hom ntawm lub vijtsam txias ua rau LED tso cua sov tsawg dua thiab kub qis thaum ua haujlwm. Raws li qhov xwm txheej ib txwm muaj, qhov kub ntawm lub vijtsam txias yog kwv yees li 20 ℃ qis dua li qhov pom kev sab nraum zoov coj siplay ntawm cov qauv zoo ib yam hauv lub xeev tshuav nyiaj dawb thiab thaum ua yeeb yaj kiab. Rau cov khoom lag luam uas muaj cov yam ntxwv tshwj xeeb, nyob hauv tib lub ci ci, qhov ntsuas kub ntawm comon cathode coj zaub yog ntau dua 20 ℃ qis dua li ntawm convetional common anode coj zaub, thiab kev siv hluav taws xob yog 30% qis dua li ntawm ib txwm muaj anode coj zaub khoom.