I-Diodes Inc. ijonge umlawuli omtsha ukuba afaneleke kwizicelo apho i-voltage eqhubekayo okanye i-current current ifunekayo ukuqhuba iziboniso kunye nezibane zangasemva.Kwicala le-LCD, oku kunokubandakanya ukusetyenziswa njengomqhubi wesibane sangasemva koomabonakude beLCD, iimonitha zeLCD, kunye neziboniso zephaneli ezisicaba.Kwicala le-LED, oko kunokuthetha ukusetyenziswa njengomqhubi we-LED kwizicelo zokukhanyisa zorhwebo.
Isixhobo sithatha igalelo lombane ukusuka kwi-9V ukuya kwi-40V.Oku kukuvumela ukuba ulungelelanise ngokulula kwiindidi ezahlukeneyo zombane oqhelekileyo wokubonelela, njenge-12V, 24V, kunye ne-36V, ngaphandle koqwalaselo olongezelelweyo okanye ukulahlekelwa kokusebenza kakuhle.
Inqanaba lobumnyama lilawulwa yi-PWM yedijithali (i-pulse width modulation) igalelo, eliguqulelwa kumbane we-analog ukuze kusebenze ulawulo lwe-dimming yangempela.I-AL3353 inokuxhasa imiqondiso ye-PWM kunye nee-frequencies ukusuka kwi-5kHz ukuya kwi-50kHz.
Ukongeza, i-AL3353 igcina umgca kuwo wonke amaqondo obushushu kunye nokwahluka kwenkqubo.Oku kufezekiswa ngokuphunyezwa kobuchule bembuyekezo yomgca weDiodes, esebenzisa i-offset cancellation circuit circuit.
I-AL3353 iqulethe umqhubi we-PWM wokunyusa osebenzisa ulawulo lwemowudi yangoku kunye nokusebenza rhoqo okusisigxina ukulawula i-LED yangoku.I-LED yangoku idlula kwi-resistor yangaphandle yangoku.Umbane onqumla kwisixhasi sezivamvo emva koko uthelekiswe nenqanaba lereferensi ye-400mV.Umahluko phakathi kwee-voltages ezimbini zisetyenziselwa ukulawula ububanzi be-pulse yokutshintsha kwamandla, kunye nokuvumela ukulawulwa kokuhamba kwangoku kwi-LED.
I-AL3353 inokusetyenziswa kwiimeko ezifuna ukulawulwa kwamandla ombane ophumayo, kunolawulo lwangoku oluphumayo.Ikwenza oko ngokwenza imilinganiselo ngenethiwekhi yokumelana nempendulo eqhagamshelwe kwitheminali yemveliso yesixhobo.
Ukuzikhusela kunye nee-LED ezizilawulayo, i-AL3353 idibanisa iimpawu ezibalulekileyo zokhuseleko.Ezi ziquka:
I-AL3353 inokubuyisela amacandelo amaninzi kwaye inokunciphisa iindleko ze-BOM, kunye nokunciphisa indawo yebhodi kunye nobukhulu bayo obuncinci:
Njengoko le nxalenye iluncedo, akumangalisi ukuba kukho abanye abangeneli kulo mmandla.Kwaye, ngelixa i-AL3353 ibonelela ngemveliso enye, abanye abavelisi banikezela ngamacandelo ukuya kuthi ga kwiziphumo ezine.Nazi ezimbalwa:
Ixesha lokuposa: May-29-2019