Impamvu icumi zituma abashoferi ba LED bananirwa
Mubusanzwe, umurimo wingenzi wumushoferi wa LED nuguhindura ibyinjira byinjira mumashanyarazi ya AC mumasoko agezweho imbaraga ziva mumashanyarazi zishobora gutandukana hamwe na voltage yimbere ya LED Vf.
Nkibintu byingenzi mumatara ya LED, ubwiza bwumushoferi wa LED bugira ingaruka kuburyo butaziguye kwizerwa no gutuza kwa luminaire muri rusange. Iyi ngingo itangirira kuri LED umushoferi nubundi buhanga bujyanye nuburambe bwo gusaba abakiriya, ikanasesengura byinshi byananiranye mugushushanya itara no kubishyira mu bikorwa:
1. Urutonde rwo guhinduranya urumuri rwamatara ya LED Vf ntirusuzumwa, bivamo imikorere mike yamatara ndetse nigikorwa kidahungabana.
Impera yimitwaro ya LED luminaire muri rusange igizwe numurongo wa LED ugereranije, kandi voltage ikora ni Vo = Vf * Ns, aho Ns igereranya umubare wa LED uhujwe murukurikirane. Vf ya LED ihindagurika hamwe nihindagurika ryubushyuhe. Muri rusange, Vf iba hasi mubushyuhe bwinshi na Vf iba hejuru mubushyuhe buke iyo iterwa numuyoboro uhoraho. Kubwibyo, voltage ikora ya LED luminaire mubushyuhe bwinshi ihuye na VoL, naho voltage ikora ya LED luminaire mubushyuhe buke ihuye na VoH. Mugihe uhisemo umushoferi wa LED, tekereza ko umushoferi asohora voltage iruta VoL ~ VoH.
Niba ingufu nyinshi zisohoka za voltage yatoranijwe ya LED iri munsi ya VoH, imbaraga ntarengwa za luminaire ntishobora kugera ku mbaraga nyazo zisabwa ku bushyuhe buke. Niba umuyagankuba wo hasi wa LED yatoranijwe ari hejuru ya VoL, umushoferi asohoka arashobora kurenza urwego rwakazi mubushyuhe bwinshi. Ntibihinduka, itara rizaka nibindi.
Nyamara, urebye ikiguzi rusange hamwe nuburyo bwo gutekereza neza, umushoferi wa LED ya ultra-rugari isohoka ya voltage ntishobora gukurikiranwa: kubera ko voltage yumushoferi iri mumwanya runaka, imikorere yubushoferi niyo yo hejuru. Urwego rumaze kurenga, imikorere nimbaraga (PF) bizaba bibi. Mugihe kimwe, ibisohoka voltage urwego rwumushoferi ni mugari cyane, biganisha ku kongera ibiciro kandi imikorere ntishobora kuba nziza.
2. Kutita ku bubiko bw'ingufu n'ibisabwa
Muri rusange, imbaraga zizina ryumushoferi wa LED namakuru yapimwe kuri ibidukikije byapimwe na voltage yagenwe. Urebye porogaramu zitandukanye abakiriya batandukanye bafite, abatanga ibinyabiziga benshi ba LED bazatanga amashanyarazi yo kugabanya umurongo kubicuruzwa byabo bwite (umutwaro usanzwe hamwe nubushyuhe bwibidukikije bugabanya umurongo hamwe nu mutwaro hamwe ninjiza ya voltage yerekana umurongo).
3. Ntusobanukirwe n'ibikorwa biranga LED
Abakiriya bamwe basabye ko imbaraga zo kwinjiza itara zaba agaciro keza, kugenwa nikosa rya 5%, kandi ibyasohotse bishobora guhinduka gusa kububasha bwagenwe kuri buri tara. Bitewe nubushyuhe butandukanye bwibidukikije hamwe nigihe cyo kumurika, imbaraga za buri tara rizatandukana cyane.
Abakiriya batanga ibyifuzo nkibyo, nubwo ibicuruzwa byabo nibitekerezo byubucuruzi. Nyamara, ibiranga volt-ampere biranga LED byerekana ko umushoferi wa LED ari isoko ihoraho, kandi imbaraga zayo zisohoka ziratandukana hamwe na LED yikurikiranya ya voltage Vo. Imbaraga zinjiza ziratandukanye na Vo mugihe imikorere rusange yumushoferi ihoraho.
Mugihe kimwe, imikorere rusange yumushoferi wa LED iziyongera nyuma yubushyuhe bwumuriro. Munsi yimbaraga zisohoka, imbaraga zo kwinjiza zizagabanuka ugereranije nigihe cyo gutangira.
Kubwibyo, mugihe porogaramu ya LED ikeneye gukora ibisabwa, igomba kubanza kumva ibiranga akazi ka LED, ikirinda kumenyekanisha ibipimo bimwe na bimwe bidahuye nihame ryimiterere yimirimo, kandi ikirinda ibipimo birenze kure ibyifuzo nyabyo, kandi wirinde ubuziranenge bukabije no guta ibiciro.
4. Ntibyemewe mugihe cyizamini
Hariho abakiriya baguze ibirango byinshi byabashoferi ba LED, ariko ibyitegererezo byose byatsinzwe mugihe cyizamini. Nyuma, nyuma yisesengura kurubuga, umukiriya yakoresheje kwiyobora-voltage kugenzura kugirango agerageze amashanyarazi yumushoferi wa LED. Nyuma yo gukongeza amashanyarazi, umugenzuzi yazamuwe buhoro buhoro kuva kuri 0Vac kugeza kuri voltage ikora ya moteri yumushoferi wa LED.
Igikorwa nkiki cyo gukora cyorohereza umushoferi wa LED gutangira no kwikorera kuri voltage ntoya yinjiza, ibyo bikaba byatuma ibyinjira byinjira binini cyane kuruta agaciro kagenwe, hamwe nibikoresho byinjira byinjira imbere nka fus, ibiraro bikosora, The thermistor nibindi bisa birananirana kubera ubukana bukabije cyangwa ubushyuhe bukabije, bigatuma disiki inanirwa.
Kubwibyo, uburyo bwukuri bwo kwipimisha nuguhindura voltage igenzura igipimo cyumubyigano cyagenwe cyumushoferi wa LED, hanyuma ugahuza umushoferi nikizamini cya power-on.
Byumvikane ko, tekiniki yo kunoza igishushanyo irashobora kandi kwirinda kunanirwa guterwa nikibazo kibi cyo gukora: gushiraho itangira rya voltage rigabanya umuzunguruko hamwe ninjiza irinda amashanyarazi munsi yumushoferi. Iyo ibyinjira bitageze kuri voltage yo gutangira yashyizweho na shoferi, umushoferi ntabwo akora; iyo kwinjiza voltage igabanutse kwinjiza munsi ya volvoltage yo gukingira, umushoferi yinjira murwego rwo kurinda.
Kubwibyo, niyo kwiyemeza-kugenzura ibikorwa byintambwe bigikoreshwa mugihe cyibizamini byabakiriya, disiki ifite ibikorwa byo kwikingira kandi ntibinanirwa. Nyamara, abakiriya bagomba kumva neza niba ibicuruzwa byabashoferi ba LED byaguzwe bifite iyi mikorere yo kurinda mbere yo kwipimisha (urebye ibidukikije bifatika byumushoferi wa LED, abashoferi benshi ba LED ntabwo bafite iki gikorwa cyo kurinda).
5. Imizigo itandukanye, ibisubizo byikizamini bitandukanye
Iyo umushoferi wa LED yapimwe nurumuri rwa LED, ibisubizo nibisanzwe, hamwe nikizamini cya elegitoroniki yikizamini, ibisubizo birashobora kuba bidasanzwe. Mubisanzwe iki kintu gifite impamvu zikurikira:
. .
.
.
Kuberako umushoferi wa LED yashizweho kugirango ahuze imikorere yimikorere ya LED luminaire, ikizamini cyegereye mubikorwa nyabyo kandi bifatika kwisi bigomba kuba gukoresha urumuri rwa LED nkumutwaro, umugozi kuri ammeter na voltmeter kugirango ugerageze.
6. Ibintu bikurikira bikunze kugaragara bishobora kwangiza umushoferi wa LED:
(1) AC ihujwe na DC isohoka rya shoferi, bigatuma disiki inanirwa;
(2) AC ihujwe no kwinjiza cyangwa gusohoka kwa DCs / DC, bigatuma disiki inanirwa;
.
.
7. Guhuza nabi kumurongo wicyiciro
Mubisanzwe porogaramu yo hanze yububiko ni ibyiciro 3-bine-sisitemu ya sisitemu, hamwe nurwego rwigihugu nkurugero, buri cyiciro cyumurongo na 0 umurongo uri hagati ya voltage ikora ni 220VAC, umurongo wicyiciro numurongo uri hagati ya voltage ni 380VAC. Niba umukozi wubwubatsi ahuza ibyinjijwe mumirongo ibiri yicyiciro, voltage yumushoferi wa LED irarenze nyuma yumuriro, bigatuma ibicuruzwa binanirwa.
8. Imbaraga za gride ihindagurika irenze igipimo cyumvikana
Iyo insimburangingo imwe ya gride ishami ryayo ari ndende cyane, hariho ibikoresho binini byamashanyarazi mumashami, mugihe ibikoresho binini bitangiye bigahagarara, voltage ya gride ya voltage izahinduka cyane, ndetse biganisha no kudahungabana kwa gride. Iyo voltage ako kanya ya gride irenze 310VAC, birashoboka kwangiza disiki (niyo haba hari igikoresho cyo gukingira inkuba ntigikora neza, kuko igikoresho cyo gukingira inkuba ni uguhangana nuduce twinshi twa uS urwego rwa pulse, mugihe amashanyarazi ihindagurika rishobora kugera kuri mirongo ya MS, cyangwa ms amagana).
Kubwibyo, amashanyarazi yamashanyarazi kumashanyarazi Grid ifite imashini nini nini zo kwita cyane, nibyiza kugenzura urugero rwimihindagurikire yumuriro, cyangwa amashanyarazi atandukanye.
9. Kugenda kenshi kumurongo
Itara kumuhanda umwe rirahujwe cyane, biganisha ku kurenza imitwaro kurwego runaka, no gukwirakwiza imbaraga zingana hagati yimiterere, bigatuma umurongo ugenda kenshi.
10. Gutwara Ubushyuhe
Iyo ikinyabiziga gishyizwe mubidukikije bidahumeka, amazu yimodoka agomba kuba ashoboka cyane muguhuza amazu ya luminaire, niba ibintu bibyemereye, mugikonoshwa nigikonoshwa cyamatara hejuru yumubano washyizwemo na kole yubushyuhe cyangwa igashyirwaho ubushyuhe bwo gutwara ubushyuhe, kunoza imikorere yo gukwirakwiza ubushyuhe bwa disiki, bityo urebe ubuzima nubwizerwe bwa disiki.
Mu ncamake, abashoferi ba LED muburyo nyabwo bwo gukoresha amakuru menshi kugirango witondere, ibibazo byinshi bigomba gusesengurwa hakiri kare, bigahinduka, kugirango wirinde gutsindwa no gutakaza bitari ngombwa!