Uyu munsi, hamwe niterambere ryihuse rya LED, LED zifite ingufu nyinshi zirimo gukoresha inzira.Kugeza ubu, ikibazo kinini cya tekinike yumuriro mwinshi LED ni ugukwirakwiza ubushyuhe.Gukwirakwiza ubushyuhe buke biganisha kuri LED imbaraga zo gutwara hamwe na capacitori ya electrolytike.Byahindutse ikibaho kigufi cyo kurushaho guteza imbere amatara ya LED.Impamvu yo gusaza imburagihe ya LED isoko yumucyo.
Muri gahunda yamatara ukoresheje isoko yumucyo wa LED, kubera ko urumuri rwa LED rukora mumashanyarazi make (VF = 3.2V), umuyagankuba mwinshi (IF = 300-700mA) ukora, ubushyuhe rero burakabije.Umwanya wamatara gakondo ni muto, kandi biragoye kumirasire yakarere gato kohereza ubushyuhe vuba.Nubwo hashyizweho gahunda zitandukanye zo gukonjesha, ibisubizo ntibishimishije, bihinduka amatara ya LED ikibazo ntakibazo.
Kugeza ubu, nyuma y’urumuri rwa LED rumaze gukoreshwa, 20% -30% yingufu zamashanyarazi zihinduka ingufu zoroheje, naho 70% yingufu zamashanyarazi zihinduka ingufu zumuriro.Kubwibyo, ni tekinoroji yingenzi yububiko bwa LED itara ryohereza hanze ingufu nyinshi zubushyuhe vuba bishoboka.Ingufu z'ubushyuhe zigomba gukwirakwizwa binyuze mu gutwara ubushyuhe, guhuza ubushyuhe n'imirasire y'ubushyuhe.
Noneho reka dusesengure ibintu bitera kubaho kwubushyuhe bwa LED:
1. Imikorere yimbere muri yombi ntabwo iri hejuru.Iyo electron ihujwe nu mwobo, foton ntishobora kubyara 100%, ubusanzwe igabanya umuvuduko wabatwara mukarere ka PN kubera "kumeneka kwubu".Kumeneka kurubu voltage nimbaraga ziki gice.Ni ukuvuga, ihindura ubushyuhe, ariko iki gice ntigifata igice cyingenzi, kuko imikorere ya fotone y'imbere yamaze kugera kuri 90%.
2. Nta fotoni yakozwe imbere ishobora kurasa hanze ya chip, kandi igice cyimpamvu nyamukuru ituma amaherezo ihinduka imbaraga zubushyuhe ni uko ibi, byitwa kwumumaro wo hanze, bigera kuri 30% gusa, ibyinshi bikaba bihindurwamo ubushyuhe.
Kubwibyo rero, ubushyuhe ni ikintu cyingenzi kigira ingaruka kumurabyo wamatara ya LED.Ubushyuhe burashobora gukemura ikibazo cyo gukwirakwiza ubushyuhe bwamatara maremare ya LED, ariko icyuma gishyuha ntigishobora gukemura ikibazo cyo gukwirakwiza ubushyuhe bwamatara maremare.
LED ibisubizo bikonje:
Ubushyuhe bwa Led butangirira ahanini mubice bibiri: gukwirakwiza ubushyuhe bwa chip ya Led mbere na nyuma yipaki hamwe no gukwirakwiza ubushyuhe bwamatara ya Led.Gukwirakwiza ubushyuhe bwa chip bifitanye isano ahanini nuburyo bwo gutoranya insimburangingo n’umuzunguruko, kubera ko LED iyo ari yo yose ishobora gukora itara, bityo ubushyuhe butangwa na chip ya LED amaherezo bukwirakwizwa mu kirere binyuze mu nzu y’itara.Niba ubushyuhe butagabanijwe neza, ubushyuhe bwa chip ya LED buzaba buto cyane, niba rero hari ubushyuhe bwegeranijwe, ubushyuhe bwo guhuza chip buziyongera vuba, kandi niba bukora mubushyuhe bwinshi mugihe kirekire, the igihe cyo kubaho kizagabanywa vuba.
Muri rusange, imirasire irashobora kugabanywa mugukonjesha gukonje no gukonjesha bikabije ukurikije uburyo ubushyuhe bukurwa mumirasire.Gukwirakwiza ubushyuhe bukabije ni ugukwirakwiza ubusanzwe ubushyuhe bwinkomoko yubushyuhe LED itanga urumuri mukirere binyuze mumashanyarazi, n'ingaruka zo gukwirakwiza ubushyuhe buringaniye nubunini bwa sink ubushyuhe.Gukonjesha bifatika ni ugukuraho ku gahato ubushyuhe butangwa nubushyuhe bukoresheje igikoresho gikonjesha nkumufana.Irangwa nubushyuhe bukabije bwo gukwirakwiza nubunini buke bwigikoresho.Gukonjesha gukomeye birashobora kugabanywa mukonjesha ikirere, gukonjesha amazi, gukonjesha imiyoboro yubushyuhe, gukonjesha imashanyarazi, gukonjesha imiti nibindi.
Mubisanzwe, imirasire isanzwe ikonjesha ikirere igomba guhitamo ibyuma nkibikoresho bya radiatori.Kubwibyo, mumateka yiterambere ryimirasire, ibikoresho bikurikira nabyo byagaragaye: imirasire ya aluminiyumu yera, imirasire yumuringa yera, hamwe nubuhanga bwo guhuza umuringa-aluminium.
Muri rusange imikorere ya LED iracyari hasi, ubushyuhe rero hamwe ni hejuru, bigatuma ubuzima bugufi.Kugirango urambe kandi ugabanye ubushyuhe bwurugingo, ni ngombwa kwitondera ikibazo cyo gukwirakwiza ubushyuhe.