I-Le Red Isibani Ubuhlalu D Isibani Sobuhlalu Umshayeli Ukwehluleka Imbangela Ukwehluleka

Umshayeli wesibani se-LED umjikelezo ohlinzeka ngobuhlalu besibani se-LED ngezimo ezijwayelekile (iphakheji ye-voltage, yamanje nezinye izimo). Kuyisimo sokuthi ubuhlalu besibani se-LED abubuhle njengekhwalithi; Ucansi nokuzinza; indima ebalulekile yedrayivu yobuhlalu belambu le-LED ukuguqula umthombo wamandla kagesi we-AC okufakwayo ku-voltage ephumayo ngomthombo wamanje we-voltage eshintshayo yobuhlalu besibani se-LED VF. Kunemininingwane eminingi ekusetshenzisweni kwangempela kokushayela kwesibani se-LED okufanele ukunake. Izinkinga eziningi zidinga ukucaciswa futhi zilungiswe kusenesikhathi ukuze kuvinjwe ukulahleka kanye nokulimala okungalahleki! Umphumela womshayeli wesibani se-LED ekuqaleni uyisizathu somphumela wokudonswa kwemiphumela: 1. Ungacabangi ukuguqulwa kwesibani se-LED se-VF, okuholela ekusebenzeni kahle okuphansi kwesibani, ngisho nomthwalo wesibani we-LED ongazinzile, owakhiwa ubuhlalu besibani se-LED amaningana ngokuhambisana. = Vf*ns, lapho i-NS ikhomba ukuthi inombolo yobuhlalu besibani se-LED ixhuma inombolo. I-VF yobuhlalu besibani se-LED iyashintsha ngokushintsha kwezinga lokushisa. Endabeni yamanje eqhubekayo, i-VF iba phansi ekushiseni okuphezulu, futhi i-VF iba phezulu ekushiseni okuphansi. Ngakho-ke, i-voltage yomthwalo we-LED ubuhlalu be-LED ekushiseni okuphezulu ihambisana ne-VOL, futhi i-voltage yomthwalo wesibani sesibani se-LED ekushiseni okuphansi ihambisana ne-VOH. Lapho ukhetha idrayivu ye-LED, ububanzi bevoltheji yomshayeli kufanele ibe ku-VOL VOH. Uma umshayeli okhethiwe wobuhlalu besibani se-LED engaphansi kwe-VOH, i-voltage endala kakhulu yokukhipha ingase ibangele amandla amakhulu esibani ekushiseni okuphansi ukuze afinyelele amandla adingekayo wangempela. Mhlawumbe umshayeli ukhipha ububanzi bezinto, isigameko asizinzile, ubuhlalu besibani buzokhanya, njll. Kodwa-ke, ukucatshangelwa okuphelele kwezindleko nokusebenza kahle, akudingekile ukufuna uhla lwe-ultra-wide output voltage yabashayeli besibani se-LED: ngoba i-voltage yomshayeli isebangeni elithile kuphela, ukusebenza kahle komshayeli yikhono eliphezulu kakhulu liphezulu kakhulu. Ngemva kokweqa ububanzi, ukusebenza kahle kanye nesici samandla (PF) kuzowohloka. Ngesikhathi esifanayo, uhla lwe-voltage okukhiphayo lomshayeli we-bead yesibani se-LED lubanzi kakhulu, okuzokwenza ukuthi izindleko zikhuphuke, ukusebenza kahle akukwazi ukwenziwa kahle. Okwesibili, indaba yokungazi ubuhlalu besibani se-LED ibonakala ngesicelo sekhasimende sokuthi amandla okufaka isibani alungiswe, futhi iphutha elingu-5% elingaguquki lingalungiswa kuphela isibani ngasinye ukuze kulungiswe ukukhishwa kwamanje ukuze kuzuzwe amandla acacisiwe. Ngenxa yomehluko ekushiseni kwemvelo kanye nomehluko ngesikhathi sokukhanyisa, amandla esibani ngasinye asazoqhathaniswa nomehluko. Amakhasimende enza isicelo esinjalo, nakuba kukhona ukucatshangelwa kokukhuthazwa kwemakethe kanye nesici sebhizinisi. Kodwa-ke, izici ze-volt nezokuphepha zobuhlalu besibani se-LED zinquma ukuthi isishayeli sobuhlalu besibani se-LED siwumthombo wamanje oqhubekayo, futhi amandla ayo okukhiphayo ashintshashintsha nge-voltage yochungechunge lomthwalo wesibani se-LED engu-VO. Ushintsho lwe-VO. Ngesikhathi esifanayo, ukusebenza kahle okuphelele komshayeli wesibani se-LED kuzokhula ngemva kokulinganisa okushisayo. Ngaphansi kwesimo sokungabi namandla okukhiphayo ahlukile, uma kuqhathaniswa nesikhathi sokuqala, amandla okufaka azofika. Ngakho-ke, lapho umfakisicelo we-LED isibani ubuhlalu umshayeli kufanele kuqala azi izici isibani LED ubuhlalu lapho ukwakheka izidingo, ukuvimbela ezinye izinkomba ukuthi ungahlangabezani nezici izinto, futhi ukuvimbela izinkomba kude kude izidingo zangempela, ukuvimbela izinga. izinga eleqile, vimbela izinga eleqile Kanye nokumosha izindleko. Okwesithathu, ngaphandle kokucabangela inani lebhalansi yamandla kanye nesidingo, amandla okuzisholo omshayeli wesibani se-LED idatha ekala idatha ngaphansi kwesimo sendawo elinganiselwe kanye ne-voltage elinganiselwe. Uma kucatshangelwa ukuthi amakhasimende ahlukene azoba nezinhlelo zokusebenza ezihlukene, abahlinzeki abaningi babashayeli bezibani ze-LED bazohlinzeka ngejika lokunciphisa amandla ezincazelweni zabo zomkhiqizo (okuvamile ngejika lokunciphisa izinga lokushisa elihambisana nomthwalo we-VS kanye nejika lokunciphisa i-VS input voltage). 4. Esivivinyweni, umshayeli wesibani se-LED uthenge izinhlobo eziningi zobuhlalu besibani se-LED, kodwa wonke amasampula alahlekile phakathi nenqubo yokuhlola. Kamuva, ngemva kwencazelo esendaweni, kwatholakala ukuthi ikhasimende lamukele idivayisi yokucindezela yokuzihlanganisa ukuze inike amandla umshayeli we-LED ngokuqondile ukuze ayihlole. Ngemva kokubizwa kwamandla, isilawuli sakhuphuka kancane kancane sisuka ku-0VAC saya. Umsebenzi onjalo wokuhlola ungaqala kalula futhi uphathe umshayeli wesibani sesibani se-LED lapho i-voltage encane yokufaka iqalwa futhi yenziwa. Lesi simo sizokwenza ukuthi okokufaka kwamanje kube kude nenani elilinganiselwe. , Okufana namafuse, amabhuloho okulungisa, i-thermistor, njll. ngenxa yokweqa kwamanje noma ukushisa ngokweqile, okuholela emphumeleni womshayeli. Ukuhlola okulungile ukulungisa isilawuli sokucindezela ku-voltage interval yomshayeli wobuhlalu besibani se-LED, bese uxhuma kudrayivu yedrayivu. Yiqiniso, umklamo wokuthuthukiswa kobuchwepheshe ungase futhi ugweme inkinga yokulahlekelwa okubangelwa ukungaqondi kahle kwalokhu kuhlolwa: ukusetha isifunda esilinganiselwe se-voltage yokuqala kanye nesekhethi yokuvikela izikweletu ezisilele kutheminali yokufaka idrayivu. Uma okokufaka kungafinyeleli ku-voltage yokuqala ebekwe umshayeli, umshayeli akalungile; lapho i-voltage yokufaka iyancipha ibe yindawo yokuvikela yokusalela emuva, umshayeli ungena esimweni sokuvikela. Ngakho-ke, ngisho naphakathi nenqubo yokuhlola ikhasimende, izinyathelo zokusebenza zedivayisi yokucindezela ozishayelayo zisamukelwa ukushayela umphumela wokuzivikela ngaphandle komphumela wawo. Kodwa-ke, ikhasimende kufanele lazi ukuthi umkhiqizo womshayeli wesibani se-LED othengiwe unalo mphumela wokuvikela ngaphambi kokuhlolwa (kucatshangelwa indawo yangempela yohlelo lokusebenza yomshayeli wesibani se-LED, iningi labashayeli besibani se-LED manje abanawo lo mphumela wokuvikela)). V. Umthwalo ohlukile, Imiphumela Ehlukile Yokuhlola Umshayeli wesibani se-LED ohlukile nokuhlolwa kokukhanya kwe-LED, umphumela ujwayelekile, lapho ukuhlolwa komthwalo we-elekthronikhi kuhlolwa, umphumela ungase ube ongajwayelekile. Noma yisiphi isizathu salokhu kwenzeka simi kanje: (1) Ububanzi bokukhishwa kwedrayivu yedrayivu noma amandla esilayishi samandla sesilayishi sikagesi. (Ikakhulukazi, kwimodi ye-CV, amandla okuhlola akumele eqe u-70% wamandla amakhulu onyaka womthwalo, ngaphandle kwalokho umthwalo ungaba namandla uma ulayisha. ) (2) Izici zesilayishi se-elekthronikhi esisetshenzisiwe azifanelekile ukukalwa kokusakazwa njalo, futhi kuvela ukweqa kwegiya lamandla kagesi, okwenza umshayeli angakwazi ukujwayelekile noma ukulayishwa. (3) Ngenxa yokuthi okokufaka kwe-electronic loader kuzoba namandla ngaphakathi kokokufaka, ukuhlolwa kulingana nekhono lokushayela ngokuhambisana nokushayela, okungase kubangele isampula yamanje yomshayeli. Ngenxa yokuthi umklamo womshayeli welambu lobuhlalu be-LED uwukulingana nezici zamalambu e-LED, iphethini yokuhlola eseduze nezinhlelo zokusebenza zangempela nezangempela kufanele isetshenziswe njengomthwalo onobuhlalu besibani se-LED, futhi imitha yamanje kanye nemitha kagesi kufanele ihlolwe ukuze kuhlolwe. . 6. Ukupholisa umshayeli Uma umshayeli efakwe endaweni engenawo umoya, kufanele uzame ukuxhumana nendlu yomshayeli ngekesi lesibani. Uma isimo sivuma, sebenzisa iglue eshisayo noma amaphedi ashisayo esitika endaweni yokuxhumana yegobolondo kanye negobolondo ukuze uthuthukise umsebenzi wokukhipha ukushisa womshayeli, ukuze ngaleyo ndlela, Uqinisekise impilo yomshayeli futhi enokwethenjelwa. Isikhombisa, umugqa wesigaba awulungile. Zonke izinhlelo zokusebenza zobunjiniyela zangaphandle ziyizigaba ezi-3 kanye nesistimu yemigqa emine. Uma sithatha indinganiso kazwelonke njengesibonelo, i-voltage phakathi komugqa wesigaba ngasinye kanye nomugqa onguziro ingu-220VAC, kanti i-voltage phakathi komugqa wesigaba nomugqa wesigaba ngu-380VAC. Uma isisebenzi sokwakha sixhuma okokufaka komshayeli emigqeni yezigaba ezimbili, ngemva kokukhanyisa amandla, i-voltage yokufaka yomshayeli wesibani se-LED idlula izinga futhi ibangele ukuthi umkhiqizo ulahlekelwe ukusebenza kahle. Kuhlongozwa ukuthi egatsheni elifanayo lokusabalalisa amandla, inkinobho noma i-circuit breaker kufanele iphulwe ndawonye. Ungabeki i-fuse yokusabalalisa amandla emugqeni onguziro, futhi uvimbele ukuthintana okungalungile kulayini. 8. Ububanzi obunengqondo bokuguquguquka kwegridi yamandla. Lapho ukusekelwa kwegridi yamandla e-transformer kude kakhulu, lapho kukhona imishini yamandla yesikhathi eside egatsheni, lapho ukuqala nokumiswa kwedivayisi yonyaka kuzoshintshashintsha ngamandla, futhi kubangele ngisho negridi yamandla. ukwehluleka ukuzinza. Lapho amandla kagesi asheshayo egridi edlula u-310VAC, umshayeli angase alimale (nakuba izinto ezivikela umbani zingavumelekile, ngoba idivayisi yokuvikela umbani iwukubhekana neziqongo eziningi zeleveli ye-US, futhi ukushintshashintsha kwegridi yamandla kungase kufinyelele inqwaba ye-ms, noma amakhulu ms). Ngakho-ke, ukunakwa okukhethekile kufanele kukhokhwe uma kukhona imishini yamandla yesikhathi eside emgwaqeni wokusekela ukukhanyisa. Ukuqapha okungcono kakhulu kobubanzi bokuguquguquka kwegridi ngaphansi kokuqapha okungcono kakhulu, noma amandla okunikezela ngesiguquli segridi yamandla. Okwesishiyagalolunye, imigqa ivame ukunamathela izibani ezifanayo emgwaqeni ofanayo wegatsha, okubangela izibani eziningi egatsheni elifanayo, okubangela ukugcwala komthwalo kugesi othize wesigaba esisodwa namandla angalingani wesigaba ngasinye, okuholela emigqeni evamile. yomugqa. 10. Isimo esilandelayo esenzeka kulesi simo esilandelayo sizodala umonakalo wabashayeli bezibani ze-LED: (1) I-AC itholwa kutheminali yokuphuma kwe-DC yedrayivu, okuholela kumphumela womshayeli; Umshayeli uyasebenza; (3) i-terminal ephumayo yamanje eqhubekayo yamukelwa ngomugqa wokulungisa ukukhanya, okuholela emphumeleni womshayeli; (4) umugqa wesigaba uxhunywe kumugqa ophansi, okuholela ekuphumeni komshayeli ngaphandle kokuphuma kanye nokushajwa kwegobolondo;