1. Intshayelelo
Inxalenye ephambili yesiboniso se-LED yi-diode ekhanyayo (i-LED), leyo, njenge-diode eqhelekileyo, inesici sokuqhuba phambili-ithetha ukuba ine-terminal e-positive (anode) kunye ne-negative (cathode). Ngokunyuka kweemfuno zentengiso kwimiboniso ye-LED, njengobomi obude, ukuhambelana, kunye nokusebenza kakuhle kwamandla, ukusetyenziswa kwe-cathode eqhelekileyo kunye nokucwangciswa kwe-anode eqhelekileyo kuye kwasasazeka kwizicelo ezahlukeneyo. Ukukunceda ukuba uqonde ngcono ezi teknoloji zimbini, eli nqaku liza kubonelela ngenkcazo ecacileyo yolwazi lwabo olufanelekileyo.
2. Iiyantlukwano eziphambili phakathi kweCathode eqhelekileyo kunye ne-Anode eqhelekileyo
Kwilungiselelo eliqhelekileyo le-cathode, zonke ii-cathodes ze-LED (ii-terminals ezimbi) zabelana ngokudibanisa okufanayo, ngelixa i-anode nganye ilawulwa ngabanye nge-voltage. Ngokwahlukileyo, ulungelelwaniso oluqhelekileyo lwe-anode ludibanisa zonke i-anode ze-LED (ii-terminals ezilungileyo) kwindawo ekwabelwana ngayo, kunye ne-cathodes nganye elawulwa ngokulawulwa kwamandla ombane. Zombini iindlela zisetyenziswa kwiimeko zoyilo lwesekethe eyahlukileyo.
Ukutya umbane:
Kwi-anode diode eqhelekileyo, i-terminal eqhelekileyo iqhagamshelwe kwinqanaba lombane ophezulu kwaye ihlala isebenza nanini na xa kufuneka amandla ombane aphezulu. Ngakolunye uhlangothi, kwi-cathode diode eqhelekileyo, i-terminal eqhelekileyo ixhunyiwe kumhlaba (GND), kwaye kuphela i-diode ethile idinga ukufumana i-voltage ephezulu ukuze isebenze, ngokufanelekileyo ukunciphisa ukusetyenziswa kwamandla. Oku kuncitshiswa kokusetyenziswa kwamandla kuluncedo ngakumbi kwii-LED ezisetyenziselwa ixesha elide, njengoko kunceda ukuthoba ubushushu besikrini.
Ukuntsonkotha kweSekethe:
Ngokubanzi, kwizicelo zobunjineli ezisebenzayo, iisekethe eziqhelekileyo ze-cathode diode zithande ukuba nzima ngakumbi kuneesekethe eziqhelekileyo ze-anode diode. Ukucwangciswa kwe-anode eqhelekileyo ayifuni imigca ephezulu ye-voltage yokuqhuba.
3. ICathode eqhelekileyo
3.1 Yintoni i-Common Cathode
Ukucwangciswa kwe-cathode eqhelekileyo kuthetha ukuba ii-terminals ezingalunganga (i-cathodes) ze-LED zidibene kunye. Kwisiphaluka esiqhelekileyo se-cathode, zonke ii-LED okanye ezinye iinqununu eziqhutywe ngoku zinee-cathodes zazo ezixhunyiwe kwindawo ekwabelwana ngayo, edla ngokubizwa ngokuba "ngumhlaba" (GND) okanye i-cathode eqhelekileyo.
3.2 UMmiselo wokuSebenza weCathode eqhelekileyo
Indlela yangoku:
Kwisiphaluka esiqhelekileyo se-cathode, xa i-terminals enye okanye ngaphezulu yokuphuma kwesiphaluka solawulo sinika i-voltage ephezulu, ii-LED ezihambelanayo okanye i-anodes yamacandelo ivuliwe. Ngeli xesha, ukuhamba kwangoku ukusuka kwi-cathode eqhelekileyo (GND) ukuya kula ma-anodes asebenzayo, okubangela ukuba bakhanyise okanye benze imisebenzi yabo.
Ingqiqo yokulawula:
Isiphaluka solawulo silawula imo ye-LED nganye okanye amanye amacandelo (ukucima okanye ukuvala, okanye amanye amazwe asebenzayo) ngokuguqula inqanaba le-voltage (phezulu okanye ephantsi) kwii-terminals zayo zokuphuma. Kwisiphaluka esiqhelekileyo se-cathode, umgangatho ophezulu ubonisa ngokuqhelekileyo ukusebenza (ukukhanyisa okanye ukwenza umsebenzi), ngelixa inqanaba eliphantsi libonisa ukucima (ungakhanyisi okanye ungenzi umsebenzi).
4. I-Anode eqhelekileyo
4.1Yintoni i-Common Anode
Ukucwangciswa kwe-anode eqhelekileyo kuthetha ukuba ii-terminals ezintle (i-anodes) ze-LED zidibene kunye. Kwisiphaluka esinjalo, zonke izinto ezinxulumene nazo (ezifana ne-LED) zine-anode yazo edibeneyo kwindawo ye-anode eqhelekileyo, ngelixa i-cathode yecandelo ngalinye ixhunywe kwii-terminals zemveliso ezahlukeneyo zesekethe yokulawula.
4.2 UMmiselo wokuSebenza we-Common Anode
Ulawulo lwangoku:
Kwisiphaluka esiqhelekileyo se-anode, xa i-terminals enye okanye ngaphezulu yokuphuma kwesiphaluka solawulo sinika i-voltage ephantsi, indlela yenziwa phakathi kwe-cathode ye-LED ehambelanayo okanye icandelo kunye ne-anode eqhelekileyo, evumela ukuba i-current ihambe ukusuka kwi-anode ukuya kwi-cathode, ukwenza ukuba ilungu likhanyise okanye lenze umsebenzi walo. Ngokwahlukileyo, ukuba i-terminal ephumayo ikwi-voltage ephezulu, okwangoku ayikwazi ukudlula, kwaye icandelo alikhanyisi.
Ukusasazwa kweVoloji:
Kwizicelo ezifana neziboniso ze-anode eziqhelekileyo ze-LED, kuba zonke ii-anode ze-LED ziqhagamshelwe kunye, zabelana ngomthombo ofanayo wombane. Nangona kunjalo, i-cathode ye-LED nganye ilawulwa ngokuzimeleyo, ivumela ulawulo oluchanekileyo phezu kokukhanya kwe-LED nganye ngokulungelelanisa i-voltage ye-output kunye ne-current from control circuit.
5. Izinto eziluncedo ze-Anode eqhelekileyo
5.1 Umthamo oPhezulu wangoku
Izakhiwo eziqhelekileyo zesekethe ye-anode zinobunzima, kodwa zinemveliso ephezulu yangoku. Olu phawu lwenza iisekethe ze-anode eziqhelekileyo ezifanelekileyo kwizicelo ezifuna ukukhutshwa kwamandla aphezulu, njengemigca yokuhambisa amandla okanye abaqhubi be-LED bamandla aphezulu.
5.2 ULungiselelo loMthwalo olugqwesileyo
Kwisekethe ye-anode eqhelekileyo, kuba onke amacandelo abelana ngenqaku eliqhelekileyo le-anode, imveliso yangoku isasazwa ngokulinganayo phakathi kwamacandelo. Lo mthwalo wokulinganisa amandla unceda ukunciphisa imiba engafanelekanga, ukuphucula ukusebenza kakuhle kunye nokuzinza kwesekethe.
5.3 Ukuba bhetyebhetye kunye nokuScalability
Uyilo lwesekethe ye-anode eqhelekileyo ivumela ukongezwa okuguquguqukayo okanye ukususwa kwamacandelo ngaphandle kwesidingo sohlengahlengiso olubalulekileyo kwisakhiwo sesekethe ngokubanzi. Oku kuguquguquka kunye nokulinganisa kunika inzuzo ecacileyo kwiinkqubo ezinzima kunye nezicelo ezinkulu.
5.4 Uyilo lweSekethe oluLula
Kwezinye izicelo, isekethe ye-anode eqhelekileyo inokwenza lula uyilo lonke lwesekethe. Ngokomzekelo, xa uqhuba i-LED arrays okanye i-7-segment displays, isiphaluka esiqhelekileyo se-anode sinokulawula amacandelo amaninzi kunye nezikhonkwane ezimbalwa kunye nokudibanisa, ukunciphisa ubunzima bokuyila kunye neendleko.
5.5 Ukuziqhelanisa neeNdlela ezahlukeneyo zoLawulo
Iisekethe ze-anode eziqhelekileyo zinokuthatha iindlela ezahlukeneyo zokulawula. Ngokulungelelanisa izibonakaliso zemveliso kunye nexesha lesiphaluka solawulo, ulawulo oluchanekileyo lwecandelo ngalinye kwisiphaluka esiqhelekileyo se-anode sinokufezekiswa ukuhlangabezana neemfuno ezahlukeneyo zesicelo.
5.6 Ukuphucula ukuthembeka kweNkqubo
Uyilo lweesekethe eziqhelekileyo ze-anode zigxininisa ukulinganisa umthwalo kunye nokusabalalisa ukuhanjiswa kwangoku, okufaka isandla ekuthembekeni kwenkqubo yonke. Kwixesha elide lokusebenza kunye neemeko zomthwalo ophezulu, iisekethe eziqhelekileyo ze-anode zigcina ukusebenza okuzinzile, ukunciphisa izinga lokungaphumeleli kunye neendleko zokugcina.
6.Iingcebiso eziqhelekileyo zokumisela i-Anode
Qinisekisa ukuba i-voltage ye-anode eqhelekileyo izinzile kwaye iphezulu ngokwaneleyo ukuqhuba zonke izinto ezixhunyiwe.
Yila i-voltage ephumayo kunye noluhlu lwangoku lwesekethe yolawulo ngokufanelekileyo ukunqanda amacandelo okonakalisa okanye ukuthoba ukusebenza.
Thatha ingqalelo iimpawu zokuhla kwamandla ombane angaphambili kwii-LEDs kwaye uqinisekise umda wombane owaneleyo kuyilo.
7. Izinto eziluncedo zeCathode eqhelekileyo
7.1 Ubuchule boMbane oPhezulu
Iisekethe eziqhelekileyo ze-cathode zinokudibanisa imiqondiso yemveliso yezixhobo zombane ezininzi, okukhokelela kumandla aphezulu aphumayo. Oku kwenza iisekethe eziqhelekileyo ze-cathode zibe luncedo ngakumbi kwiimeko zemveliso yamandla aphezulu.
7.2 Ukuguquguquka
I-input and output terminals yesekethe yecathode eqhelekileyo inokudityaniswa ngokukhululekileyo, ivumela ukuba isetyenziswe ngokuguquguqukayo kwizixhobo ezahlukeneyo zombane. Oku kuguquguquka kubonelela ngeesekethe eziqhelekileyo ze-cathode kunye nezicelo ezibanzi kwinkalo yobunjineli be-elektroniki.
7.3 UkuLula koLungiso
Ngokuhlengahlengisa amacandelo afana ne-resistors okanye i-transformers kwi-circuit, i-state yokusebenza kunye ne-output signal power of the common cathode circuit inokuguqulwa ngokulula. Oku kulula ukulungiswa kwenza iisekethe eziqhelekileyo ze-cathode zithandwa kwizicelo ezifuna ulawulo oluchanekileyo lweempawu zemveliso.
7.4 Ulawulo lokuSetyenziswa koMbane
Kwizicelo zokubonisa i-LED, iisekethe eziqhelekileyo ze-cathode zinokusasaza ngokuchanekileyo i-voltage, ngokufanelekileyo ukunciphisa ukusetyenziswa kwamandla. Oku kuphunyezwa ngenxa yokuba iisekethe eziqhelekileyo ze-cathode zivumela unikezelo lwamandla ombane ngokuthe ngqo ngokweemfuno ezithile ze-LED nganye, ukuphelisa imfuno yokwahlulahlula amandla ombane kunye nokunciphisa ilahleko yamandla ngokungeyomfuneko kunye nokuveliswa kobushushu. Ngokomzekelo, iteknoloji ye-cathode eqhelekileyo inokunciphisa i-voltage yokusebenza ye-chips ze-LED ukusuka kwi-4.2-5V ukuya kwi-2.8-3.3V ngaphandle kokuchaphazela ukukhanya okanye umboniso wokusebenza, okunciphisa ngokuthe ngqo ukusetyenziswa kwamandla e-fine-pitch LED displays ngaphezu kwe-25%.
7.5 Intsebenzo eyongezelelweyo yokuBonisa kunye nokuzinza
Ngenxa yokunciphisa ukusetyenziswa kwamandla, iisekethe eziqhelekileyo ze-cathode zinciphisa ubushushu besikrini ngokubanzi. Uzinzo kunye nexesha lokuphila kwee-LED zihambelana ngokungafaniyo nobushushu; ke ngoko, amaqondo obushushu esikrini asezantsi akhokelela ekuthembekeni okuphezulu kunye nobomi obude bemiboniso ye-LED. Ukongezelela, iteknoloji ye-cathode eqhelekileyo inciphisa inani lamacandelo e-PCB, iphucula ngakumbi ukuhlanganiswa kwenkqubo kunye nokuzinza.
7.6 Ulawulo oluchanekileyo
Kwizicelo ezifuna ukulawulwa ngokuchanekileyo kwee-LED ezininzi okanye ezinye izinto, ezifana neziboniso ze-LED kunye ne-7-segment displays, iisekethe eziqhelekileyo ze-cathode zivumela ulawulo oluzimeleyo lwecandelo ngalinye. Esi sikhundla solawulo oluchanekileyo senza iisekethe eziqhelekileyo ze-cathode zigqwese kuzo zombini umboniso kunye nokusebenza.
8. Iingcebiso zokuSeta iiCathode eziqhelekileyo
Xa usebenzisa i-cathode eqhelekileyo ye-7-segment displays, gwema ukudibanisa ngokuthe ngqo nomphezulu kwaye uphathe izikhonkwane ngokucophelela. Nika ingqalelo ubushushu be-solder kunye nexesha lokuqinisekisa umgangatho we-soldering. Kwakhona, qinisekisa ukuba amandla ombane okusebenza kunye nomsinga ziyahambelana, ucofe i-cathode eqhelekileyo ngokufanelekileyo, kwaye uqwalasele isakhono somqhubi we-microcontroller kunye nokulawula ukulibaziseka. Ukongezelela, nikela ingqalelo kwifilimu ekhuselayo, ukuhambelana nemeko yesicelo, kunye nokuzinza kokuhlanganiswa kwenkqubo ukuqinisekisa ukusebenza okuqhelekileyo kunye nokwandiswa kwexesha lokuphila kwe-cathode eqhelekileyo ye-7-segment display.
9. Indlela yokuchonga iCathode eqhelekileyo kunye ne-Anode eqhelekileyo
9.1 Jonga izikhonkwane ze-LED:
Ngokuqhelekileyo, ipini emfutshane ye-LED yi-cathode, kwaye i-pin ende yi-anode. Ukuba i-microcontroller idibanisa izikhonkwane ezinde kunye, isebenzisa ukucwangciswa kwe-anode eqhelekileyo; ukuba izikhonkwane ezinde zidityanisiwe kwizibuko ze-IO zemicrocontroller, isebenzisa uqwalaselo lwecathode eqhelekileyo.
9.2 Umbane kunye nesimo se-LED
Kwi-LED efanayo, kunye ne-port ye-voltage efanayo, ukuba "1" ilayita i-LED kwaye "0" iyayicima, ibonisa ukucwangciswa kwe-cathode eqhelekileyo. Ngaphandle koko, lubumbeko oluqhelekileyo lwe-anode.
Isishwankathelo, ukufumanisa ukuba i-microcontroller isebenzisa i-cathode eqhelekileyo okanye ulungelelwaniso lwe-anode oluqhelekileyo lubandakanya ukuhlola indlela yokudibanisa i-LED, i-LED's on / off state, kunye ne-port output voltage. Ukuchonga uqwalaselo oluchanekileyo luyimfuneko kulawulo olululo lwee-LED okanye ezinye izinto zokubonisa.
Ukuba ufuna ukwazi ngakumbi malunga neziboniso ze-LED,qhagamshelana nathi ngoku. I-RTLEDuyakuphendula imibuzo yakho.
Ixesha lokuposa: Aug-24-2024