Tom qab xyoo ntawm txoj kev loj hlob, cov tsoos ib txwm anode LED zaub tau tsim ib tug ruaj khov kev lag luam saw, uas tau coj mus rau lub popularization ntawm LED zaub.Txawm li cas los xij, nws kuj muaj qhov tsis zoo, qhov ntsuas kub ntau dhau thiab siv zog ntau dhau.Tom qab cov tsos ntawm cov cathode LED zaub lub zog siv tshuab, nws tau nyiam cov xim zoo nkauj hauv LED zaub ua lag luam.Txoj kev siv hluav taws xob no tuaj yeem ua tiav lub zog txuag ntau tshaj 75%, yog li dab tsi yog lub zog siv tshuab ntawm cov khoom siv cathode LED?Qhov zoo ntawm cov tshuab no yog dab tsi?
Dab tsi yog qhov zoo ntawm cov khoom siv hluav taws xob zoo tib yam cathode LED zaub
1. Dab tsi yog ib qho cathode LED zaub?
"Common cathode" yog hais txog hom cathode fais fab mov.Qhov tseeb, qhov no yog lub zog txuag hluav taws xob rau LED cov lus qhia.Hais txog kev siv ib qho cathode rau lub zog rau LED zaub.B (liab, ntsuab, xiav) cais cov khoom siv hluav taws xob, thiab faib cov hluav taws xob tam sim no thiab qhov hluav taws xob ntawm R, G, B teeb hlaws, vim tias R, G, B (liab, ntsuab, xiav) teeb hlaws yuav tsum tau ua haujlwm zoo tshaj plaws. voltage, thiab tam sim no sib txawv, Yog li ntawd, qhov tam sim no yuav xub dhau los ntawm lub teeb hlaws, thiab tom qab ntawd mus txog qhov tsis zoo ntawm IC, txo qis rau pem hauv ntej voltage poob thiab txo cov conduction sab hauv.
2. Dab tsi yog qhov txawv ntawm cov cathode thiab ntau anode LED zaub?
①.Txoj kev siv hluav taws xob sib txawv:
Txoj kev siv cathode fais fab mov feem ntau yog qhov tam sim no thawj zaug dhau los ntawm lub teeb hlaws thiab tom qab ntawd mus txog qhov tsis zoo ntawm cov kab hluav taws xob sib txuas, kom lub zog hluav taws xob rau pem hauv ntej yuav me dua thiab qhov kev tiv thaiv yuav me dua.
Cov anode feem ntau yog tam sim no ntws los ntawm PCB pawg thawj coj saib mus rau lub teeb hlaws, thiab muab lub zog sib npaug rau R, G, B (liab, ntsuab, xiav), kom qhov hluav taws xob poob qis ntawm lub voj voog loj dua.
②.Lub hwj chim mov voltage yog txawv:
Common cathode, muab tam sim no thiab voltage rau R, G, B (liab, ntsuab, xiav), feem.Liab, ntsuab thiab xiav LEDs muaj qhov sib txawv voltage yuav tsum tau.Qhov hluav taws xob ntawm lub teeb liab hlaws yog li 2.8V, thiab qhov hluav taws xob ntawm lub teeb xiav thiab ntsuab hlaws yog li 3.8V, qhov khoom siv hluav taws xob no tuaj yeem ua tiav cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob.Vim qhov poob qis dua, cov cua sov tsim los ntawm LED zaub thaum lub sijhawm ua haujlwm yog qis dua.
Cov cathode feem ntau yuav tsum muab R, G, B (liab, ntsuab, xiav) ib lub zog sib koom ua ke siab dua 3.8V (xws li 5V).Lub sijhawm no, qhov hluav taws xob tau txais los ntawm liab, ntsuab thiab xiav yog ib yam 5V, thaum liab, ntsuab, qhov pom kev ua haujlwm voltage xav tau los ntawm peb lub teeb xiav hlaws hlaws yog qis dua 5V.Raws li lub hwj chim formula P = UI, nyob rau hauv tas li tam sim no tej yam kev mob, lub siab dua voltage, lub zog ntau dua, uas yog, lub zog noj ntau dua, thaum lub LED zaub ua hauj lwm ntau dua kub yog generated nyob rau hauv tus txheej txheem.
3. Vim li cas cov cua kub ntawm cov cathode LED zaub qis dua?
Qhov tshwj xeeb tshaj plaws cathode fais fab mov hom ntawm lub vijtsam txias ua rau cov txheej txheem LED ua kom muaj cua sov tsawg thiab qis dua.Nyob rau hauv ib txwm muaj xwm txheej, thaum lub sij hawm dawb tshuav thiab ua yeeb yaj kiab, qhov kub ntawm lub vijtsam txias yog li 20 ° C qis dua li cov khoom siv sab nraum zoov LED ntawm tib tus qauv.Nyob rau hauv tib lub specifications thiab tib lub ci ci, qhov ntsuas kub ntawm qhov zoo tib yam cathode LED zaub yog ntau tshaj 20 degrees qis dua li cov khoom siv anode LED zoo tib yam, thiab lub zog noj yog 50% qis dua li cov khoom siv anode LED zaub.
Qhov kub siab ntawm LED zaub screen thiab kev siv hluav taws xob ntau dhau ib txwm yog qhov tseem ceeb cuam tshuam rau lub neej kev pab cuam ntawm LED zaub screen."Common cathode LED zaub" tuaj yeem daws ob qhov teeb meem no.
4. Dab tsi yog qhov zoo ntawm cov cathode LED zaub?
e fais fab mov yeej txuag lub zog:
Cov khoom lag luam cathode txais yuav cov cuab yeej siv hluav taws xob zoo, raws li qhov sib txawv optoelectronic yam ntxwv ntawm peb lub ntsiab xim ntawm LED liab, ntsuab thiab xiav, ua ke nrog ntse IC zaub tswj qhov system thiab ywj siab hom, qhov sib txawv voltages ntawm LED thiab tsav Circuit Court yog raug. faib, kom lub hwj chim noj ntawm cov khoom yog kuj siab.Cov khoom zoo sib xws hauv kev ua lag luam txuag txog 40%!
②.Kev txuag hluav taws xob tiag tiag coj cov xim tiag tiag:
Txoj kev siv cathode LED tsav tsheb feem ntau tuaj yeem tswj tau qhov voltage, thaum txo kev siv hluav taws xob thiab hluav taws xob tsim hluav taws xob, lub wavelength ntawm LED yuav tsis txav thaum lub sijhawm ua haujlwm tas mus li, thiab cov xim tseeb tuaj yeem tso tawm kom ruaj khov!
③.Kev txuag hluav taws xob tiag tiag ua rau lub neej ntev:
Kev siv hluav taws xob txo qis, qhov kub nce ntawm lub kaw lus txo qis heev, qhov tshwm sim ntawm LED kev puas tsuaj tau txo qis, kev ruaj ntseg thiab kev ntseeg tau ntawm tag nrho cov zaub system tau txhim kho, thiab kev pab cuam lub neej ntawm lub cev tau ntev heev.
5. Dab tsi yog qhov sib txawv ntawm cov thev naus laus zis tsis zoo?
Muaj feem xyuam rau cov cathode LED zaub technologies xws li LEDs, khoom siv fais fab, thiab tsav tsheb ICs, nws tsis paub tab raws li Ram LED kev lag luam saw.Tsis tas li ntawd, tam sim no cov cathode IC series tsis tiav, thiab tag nrho cov muag khoom ntim tsis loj.Ram tseem nyob 80% ntawm kev ua lag luam.
Qhov laj thawj tseem ceeb rau kev txhim kho qeeb ntawm kev siv tshuab cathode tam sim no yog tus nqi tsim khoom siab.Raws li kev sib koom ua ke ntawm cov khoom lag luam qub, cov cathode feem ntau xav tau kev sib koom ua ke ntawm txhua qhov kawg ntawm cov saw hlau xws li chips, ntim, thiab PCBs, thiab tus nqi siab.
Nyob rau hauv lub sijhawm no ntawm kev xav tau siab heev rau kev txuag hluav taws xob, qhov tshwm sim ntawm qhov pom tsis zoo ntawm cov pob tshab LED tau dhau los ua qhov kev txhawb nqa ntawm qhov kev lag luam no.Txawm li cas los xij, tseem muaj txoj hauv kev ntev mus kom ua tiav kev txhawb nqa thiab kev thov hauv kev txiav txim siab loj dua, thiab kev sib koom ua ke ntawm tag nrho cov kev lag luam yuav tsum tau ua.Ordinary cathode LED zaub suav nrog kev siv hluav taws xob hluav taws xob thiab cov nqi khiav lag luam, uas yog txoj kev loj hlob ntawm kev txuag hluav taws xob.Yog li ntawd, kev txuag hluav taws xob thiab kev txo qis yog cuam tshuam nrog kev txaus siab ntawm LED cov tswv lag luam thiab kev siv lub teb chaws lub zog.
Kev txiav txim siab los ntawm qhov xwm txheej tam sim no, qhov zoo tib yam cathode LED lub zog txuag zaub yuav tsis nce tus nqi ntau dhau los piv nrog cov khoom siv ib txwm siv, thiab nws tseem yuav txuag tau cov nqi hauv kev siv yav tom ntej, uas tau txais txiaj ntsig zoo los ntawm kev ua lag luam.
Post lub sij hawm: Aug-06-2022
