Le Red LED Nyali Mikanda D Nyali Bead Dalaivala Kulephera Kuchititsa Kulephera

Dalaivala ya nyali ya LED ndi dera lomwe limapereka mikanda ya nyali ya LED yokhala ndi mikhalidwe yabwinobwino (voltage phukusi, pano ndi zina). Ndi chikhalidwe chakuti mikanda ya nyali ya LED siili bwino monga khalidwe; Kugonana ndi bata; Udindo wofunikira pagalimoto yoyendetsa nyali ya LED ndikusinthira gwero lamagetsi a AC kukhala mphamvu yotulutsa ndi gwero lapano lakusintha kwa mikanda ya nyali ya LED VF. Pali zambiri pakugwiritsa ntchito kwenikweni kwa ma drive a nyali za LED kuti mumvetsere. Mavuto ambiri amafunika kulongosoledwa ndikusinthidwa mwachangu kuti apewe kutayika ndi kuwonongeka kopanda chifukwa! Zotsatira za dalaivala wa nyali ya LED poyamba ndiye chifukwa cha zotsatira zakugwa: 1. Musaganizire kusintha kwa LED nyali mkanda VF, chifukwa cha dzuwa otsika wa nyali, ndipo ngakhale wosakhazikika LED nyali katundu, amene wapangidwa angapo LED mikanda mu kufanana. = Vf*ns, pomwe NS ikuwonetsa kuti kuchuluka kwa mikanda ya nyali ya LED kumalumikiza nambalayo. VF ya mikanda ya nyali ya LED imasintha ndi kusintha kwa kutentha. Pankhani ya nthawi zonse, VF imatsika pa kutentha kwakukulu, ndipo VF imakhala yokwera kwambiri kutentha. Choncho, voteji ya nyali LED mkanda katundu pa kutentha limafanana VOL, ndi voteji ya LED nyali mkanda katundu pa kutentha otsika limafanana VOH. Posankha choyendetsa cha LED, ma voliyumu amtundu wa dalaivala ayenera kukhala mu VOL VOH. Ngati dalaivala wosankhidwa wa nyali ya LED ndi wotsika kuposa VOH, mphamvu yamagetsi yakale kwambiri ingayambitse mphamvu yaikulu ya nyali pa kutentha kochepa kuti ifike ku mphamvu yeniyeni yofunikira. Mwina dalaivala amatulutsa kuchuluka kwa zinthu, zomwe zikuchitika ndi zosakhazikika, mikanda ya nyali idzawala, ndi zina zotero. Komabe, mtengo wathunthu ndi magwiridwe antchito, sikoyenera kufunafuna kopitilira muyeso -wide linanena bungwe voteji osiyanasiyana madalaivala nyale LED: chifukwa dalaivala voteji ndi mu osiyanasiyana ena, dalaivala dzuwa ndi dzuwa kwambiri ndi apamwamba. Pambuyo podutsa muyeso, mphamvu ndi mphamvu (PF) zidzawonongeka. Nthawi yomweyo, ma voliyumu amtundu wa dalaivala wa nyali ya LED ndiwamba kwambiri, zomwe zingapangitse kuti mtengo uwonjezeke, magwiridwe antchito sangathe kukonzedwa. Chachiwiri, nkhani yosadziwa mikanda ya nyali ya LED imadziwika ndi pempho la kasitomala kuti magetsi alowetse nyali akhazikitsidwe, ndipo cholakwa chokhazikika cha 5% chikhoza kusinthidwa kuti nyali iliyonse isinthe zomwe zikuchitika kuti zikwaniritse mphamvu zomwe zatchulidwa. Chifukwa cha kusiyana kwa kutentha kwa chilengedwe komanso kusiyana kwa nthawi yowunikira, mphamvu ya nyali iliyonse idzafanizidwabe ndi kusiyana kwake. Makasitomala amapanga pempho loterolo, ngakhale pali malingaliro okweza msika ndi chinthu chabizinesi. Komabe, mawonekedwe a volt ndi chitetezo cha mikanda ya nyali ya LED amatsimikizira kuti woyendetsa nyali ya nyali ya LED ndi gwero lanthawi zonse, ndipo mphamvu yake yotulutsa imasintha ndi nyali ya nyali ya nyali ya LED VO. N’zosintha kwambiri. Nthawi yomweyo, mphamvu yonse ya woyendetsa nyali ya LED idzawonjezeka pambuyo pakutentha kwamafuta. Pansi pazikhalidwe zopanda mphamvu zotulutsa zosiyana, poyerekeza ndi nthawi yoyambira, mphamvu yolowera idzatera. Choncho, pamene wopempha wa LED nyali dalaivala mkanda ayenera choyamba kudziwa makhalidwe a LED mikanda nyali pokonza zofunika, kupewa zizindikiro zina zimene sizikugwirizana ndi makhalidwe a zinthu, ndi kupewa zizindikiro kutali kuposa zofunika kwenikweni, kuteteza khalidwe. owonjezera khalidwe, kupewa khalidwe owonjezera Ndi kuwononga ndalama. Chachitatu, popanda kuganizira kuchuluka kwa mphamvu yamagetsi ndi kufunikira, mphamvu yodziwika ya woyendetsa nyali ya LED ndi deta yomwe imayesa deta pansi pa chikhalidwe cha chilengedwe chovotera ndi magetsi ovotera. Poganizira kuti makasitomala osiyanasiyana azikhala ndi mapulogalamu osiyanasiyana, ambiri ogulitsa nyali za LED azipereka njira yochepetsera mphamvu pazomwe amapangira (zofanana ndi zokhotakhota zochepetsera kutentha kwa VS komanso kutsitsa kwa VS). 4. Poyesa, woyendetsa nyali ya LED wagula mitundu yambiri ya mikanda ya nyali ya LED, koma zitsanzo zonse zimatayika panthawi yoyesera. Pambuyo pake, pambuyo pa malongosoledwe a pa -site, zidapezeka kuti kasitomala adavomera cholumikizira cholumikizira chokha kuti apangitse dalaivala wa LED kuti ayese. Mphamvu itayitanidwa, wowongolera pang'onopang'ono adakwezedwa kuchokera ku 0VAC kupita. Kuyesa kotereku kumatha kuyambitsa mosavuta ndikunyamula woyendetsa nyali ya nyali ya LED pomwe magetsi ang'onoang'ono ayambika ndikuchitidwa. Izi zipangitsa kuti zolowetsamo zikhale kutali ndi mtengo wake. , Monga fuse, milatho yokonzanso, thermistor, etc. chifukwa cha kupitirira panopa kapena kutenthedwa, zomwe zimapangitsa kuti dalaivala awonongeke. Kuyesa koyenera ndikusinthira chowongolera kuti chikhale chamagetsi amtundu wa dalaivala wa nyali ya LED, kenako ndikulumikiza pagalimoto yoyendetsa. Zachidziwikire, kukonza luso laukadaulo kumathanso kupewa vuto la kutayika komwe kumachitika chifukwa cha kusamvetsetsana kwa mayesowa: kukhazikitsa gawo loyambira voteji yochepa komanso gawo loteteza zotsalira zotsalira pagawo lolowera pagalimoto. Pamene zolowetsazo sizikufika pamagetsi oyambira omwe amaikidwa ndi dalaivala, dalaivala sakulakwitsa; pamene athandizira voteji yafupika kwa arrears arrears chitetezo mfundo, dalaivala amalowa boma chitetezo. Chifukwa chake, ngakhale pakuyesa kwamakasitomala, masitepe ogwiritsira ntchito chipangizo chodziyimira pawokha amavomerezedwa kuti aziyendetsa zodzitchinjiriza popanda zotsatira zake. Komabe, kasitomala ayenera kudziwa ngati chida chogulira choyendetsa nyali cha LED chili ndi chitetezo ichi chisanayesedwe (poganizira malo enieni ogwiritsira ntchito woyendetsa nyali ya LED, madalaivala ambiri a nyali za LED tsopano alibe chitetezo ichi)). V. Katundu Wosiyanasiyana, Zotsatira Zoyesa Zosiyanasiyana Zoyendetsa nyali za LED zokhala ndi kuyezetsa kwa kuwala kwa LED, zotsatira zake ndizabwinobwino, mayeso amagetsi akamayesedwa, zotsatira zake zitha kukhala zachilendo. Chifukwa chilichonse cha chodabwitsa ichi ndi chotere: (1) Kuchuluka kwazomwe zimatuluka pagalimoto ya galimoto kapena mphamvu yamagetsi yamagetsi yamagetsi. (makamaka, mu CV mode, mphamvu yoyesera sayenera kupitirira 70% ya mphamvu yaikulu ya chaka cha katundu, apo ayi katunduyo akhoza kupitirira - mphamvu potsegula. ) (2) Makhalidwe a chojambulira chamagetsi omwe amagwiritsidwa ntchito si oyenera kuyeza kusuntha kosalekeza, ndipo chotengera chamagetsi chamagetsi chimadumphira, chomwe chimapangitsa dalaivala sangakhale wamba kapena kunyamula. (3) Chifukwa kulowetsa kwa chojambulira chamagetsi kudzakhala ndi mphamvu mkati mwazolowera, mayeserowa ndi ofanana ndi mphamvu ya galimotoyo mofanana ndi kuyendetsa galimoto, zomwe zingayambitse sampuli yamakono ya dalaivala. Chifukwa mapangidwe oyendetsa nyali a LED akuyenera kukwanira mawonekedwe a nyali za LED, mawonekedwe oyesera omwe ali pafupi kwambiri ndi magwiritsidwe enieni komanso enieni ayenera kugwiritsidwa ntchito ngati katundu wokhala ndi mikanda ya nyali ya LED, ndipo mita yamakono ndi mita yamagetsi iyenera kuyesedwa kuti iyesedwe. . 6. Kuziziritsa kwa dalaivala Pamene dalaivala aikidwa pamalo opanda mpweya wabwino, muyenera kuyesa kulumikiza nyumba ya dalaivala ndi nyali. Ngati mkhalidwewo ulola, ikani zomatira zotentha kapena zomata zomata zotenthetsera pamalo okhudzana ndi chipolopolo ndi chipolopolo kuti muwongolere ntchito yochotsa kutentha kwa dalaivala, kuti potero, Kuonetsetsa moyo wa dalaivala ndi wodalirika. Zisanu ndi ziwiri, mzere wa gawo ndi wolakwika. Ntchito zonse zaukadaulo zakunja zonse ndi magawo atatu ndi makina amizere inayi. Kutengera mtundu wa dziko mwachitsanzo, voteji pakati pa mzere uliwonse ndi mzere wa zero ndi 220VAC, ndipo voteji pakati pa mzere wa gawo ndi mzere wa gawo ndi 380VAC. Ngati wogwira ntchito yomangayo alumikiza zolowetsa dalaivala ku mizere iwiri ya magawo, pambuyo pa mphamvu, mphamvu yowonjezera ya dalaivala wa nyali ya LED imaposa muyezo ndikupangitsa kuti chinthucho chiwonongeke. Akufunsidwa kuti panthambi yogawa mphamvu imodzi, chosinthira kapena chophwanya dera chiyenera kusweka pamodzi. Osayika fuse yogawa mphamvu pa mzere wa ziro, ndikupewa kukhudzana koyipa pa mzerewo. 8. Kusinthasintha koyenera kwa gridi yamagetsi. Pamene kuthandizira gululi mphamvu ya thiransifoma ndi yaitali kwambiri, pamene pali nthawi yaitali zida mphamvu mu nthambi, pamene chiyambi -mmwamba ndi kuyima kwa chaka-pa-chaka chipangizo adzakhala kusinthasintha mwachiwawa, ndipo ngakhale kuyambitsa gululi mphamvu. kulephera kukhazikika. Mphamvu yamagetsi yamagetsi ikadutsa 310VAC, dalaivala akhoza kuwonongeka (ngakhale zida zowonetsera mphezi ndizosavomerezeka, chifukwa chipangizo choteteza mphezi chiyenera kuthana ndi nsonga zambiri zaku US, ndipo kusinthasintha kwa gridi yamagetsi kumatha kufikira ma ms ambiri, kapena mazana a ms). Choncho, chisamaliro chapadera chiyenera kuperekedwa pamene pali makina amphamvu a nthawi yayitali pamsewu wothandizira kuyatsa. Kuwunika kwabwino kwa kusinthasintha kwa gululi pansi pa kuyang'anitsitsa bwino, kapena magetsi opangira magetsi opangira magetsi. Nine, mizere nthawi zambiri kumamatira ku nyali zomwezo pa msewu wa nthambi womwewo, zomwe zimayambitsa magetsi ochulukirapo panthambi yomweyo, zomwe zimapangitsa kuti katundu azichulukirachulukira pamtundu wina wamagetsi ndi mphamvu yosagwirizana ya gawo lililonse, zomwe zimatsogolera ku mizere pafupipafupi. wa mzere. 10. Zotsatirazi zomwe zimachitika pazifukwa zotsatirazi zidzachititsa kuti madalaivala a nyali a LED awonongeke: (1) AC imalandiridwa ku malo opangira magetsi a DC, zomwe zimapangitsa kuti dalaivala awonongeke; Dalaivala ndi wothandiza; (3) nthawi zonse zotulukapo zotulukapo zimalandiridwa ndi mzere wowongolera kuwala, zomwe zimapangitsa kuti dalaivala agwire; (4) mzere wa gawo umagwirizanitsidwa ndi mzere wapansi, zomwe zimapangitsa kuti dalaivala atuluke popanda kutulutsa ndi kutulutsa chipolopolo;