Uburebure bwumucyo wibimera burakwiriye cyane gukura, kurabyo, kwera imbuto.Mubisanzwe, ibimera nindabyo zo murugo bizagenda byiyongera mugihe, cyane cyane kubura urumuri.Mu kumurika igihingwa n'amatara ya LED akwiranye nibisabwa n'igihingwa, ntibishobora gukura gusa, ariko igihe cyo kurabyo gishobora no kwagurwa kandi ubwiza bwururabyo bukaba bwiza.Ikoreshwa ryiyi sisitemu yumucyo mwinshi cyane mubikorwa byubuhinzi nka pariki, pariki n’ibindi bigo birashobora gukemura ibibazo by’izuba ridahagije bigatuma igabanuka ry uburyohe bwimboga rwatsi nka tomato nimbuto, kurundi ruhande, irashobora kandi gutuma imbeho y'inyanya n'imbuto n'imboga bigenda ku isoko mbere na nyuma yiminsi mikuru, kugirango bigere ku ntego yo guhinga ibihe bitari byiza.
Kubera ko ubushyuhe bwihuza bushobora kugenwa no kugabanuka kwingufu zingana, ndetse ningaruka nini nini zidafite ingaruka nke kumashanyarazi.Kurugero, mumashanyarazi ahinduka, impinga ya to-peak impagarike ihwanye na DC isohoka (Ipk-pk = Iout) yongeraho bitarenze 10% byigihombo cyose.Niba igihombo cyavuzwe haruguru kirenze neza, amashanyarazi ya AC avuye mumashanyarazi agomba kugabanuka kugirango ubushyuhe bwihuza nubuzima bukore buhoraho.Amategeko yingirakamaro cyane ni uko kuri dogere selisiyusi 10 kugabanuka kwubushyuhe bwihuza, ubuzima bwa semiconductor ubuzima bwiyongera gatatu.Mubyukuri, ibishushanyo byinshi bikunda kugira umuvuduko wo hasi kubera kwangwa kwa inductor.Mubyongeyeho, impinga yimpanuka muri LED ntigomba kurenza igipimo ntarengwa cyumutekano gikora cyagenwe nuwabikoze.
Iyo utwaye LED unyuze mumashanyarazi, LED ikunze kuyobora AC ripple ya DC na DC ya inductor ukurikije ibyatoranijwe byungururwa.Ibi ntibizongera gusa amplitude ya RMS yumuyaga muri LED, ahubwo bizongera ingufu zikoresha.Ibi byongera ubushyuhe bwihuriro kandi bigira ingaruka zikomeye mubuzima bwa LED.Niba dushyizeho 70% yumucyo usohoka nkubuzima bwa LED, noneho ubuzima bwa LED bwongerewe kuva kumasaha 74 kuri dogere selisiyusi 15.000 kugeza kumasaha 40.000 kuri dogere selisiyusi 63.Gutakaza ingufu za LED bigenwa no kugwiza LED irwanya kwadarato ya RMS hiyongereyeho impuzandengo yikubye inshuro igabanuka imbere ya voltage igabanuka.
Munsi ya LED ifunguye kumurongo (kuzimya voltage yumurongo wa LED yera igera kuri 3.5V), umuyoboro unyuze muri LED ni muto cyane.Hejuru yuru rugabano, ikigezweho cyikubye cyane nka voltage yimbere.Ibi bituma LED ikorwa nkisoko ya voltage hamwe nuruhererekane rurwanya hamwe no kuburira ko iyi moderi ifite agaciro gusa kumurongo umwe ukora DC.Niba amashanyarazi ya DC muri LED ahindutse, kurwanya moderi nabyo bigomba guhinduka kugirango bigaragaze imikorere mishya ikora.Mugihe kinini cyimbere, imbaraga zo gukwirakwiza muri LED zishyushya igikoresho, gihindura imbere ya voltage igabanuka hamwe ningaruka zidasanzwe.Ni ngombwa cyane gusuzuma byimazeyo ibidukikije bikwirakwizwa mugihe hamenyekanye inzitizi ya LED.
Umucyo uhindagurika bisaba umuyoboro uhoraho kugirango utware LED, igomba guhora ititaye kumurongo winjiza.Ibi biragoye kuruta guhuza gusa itara ryaka na bateri kugirango uyikoreshe.
Igihe cyo kohereza: Ugushyingo-16-2022