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Momwe Mungathetsere Mphamvu ya Magetsi a LED Light Source Modules Otsika kwambiri

Kusintha kwamtundu wa nyali ya LED VF sikuganiziridwa, zomwe zimapangitsa kuti nyaliyo ikhale yochepa kwambiri, komanso ngakhale mtengo wamtengo wapatali wa module ya LED yowunikira mu gawo losasunthika la LED. Nthawi zambiri amakhala ndi zingwe zingapo za LED za ma LED. kuchuluka. Ma LED a VF amasintha ndi kusintha kwa kutentha. Nthawi zambiri, pakalipano, VF imatsika pakutentha kwambiri, ndipo VF imakwera pakutentha kotsika. Choncho, voteji ntchito nyali LED katundu pa kutentha limafanana VOL, ndi LED nyali katundu ntchito voteji pa kutentha otsika limafanana VOH. Posankha ma drive a LED, ma voliyumu amtundu wa dalaivala ndi wamkulu kuposa VOL VOH. Ngati mtengo wa gawo la gwero la kuwala kwa LED ku mphamvu yayikulu yotulutsa ndi yotsika kuposa VOH, kulolerana kwa nyali pa kutentha kochepa sikungafikire mphamvu yeniyeni. Ngati galimoto yosankhidwa ya LED kupita kumagetsi otsika ndi apamwamba kuposa VOL, galimotoyo ikhoza kuyendetsedwa ndi kutentha kwakukulu pa kutentha kwakukulu. Kutulutsa kumaposa kukula kwa ntchito, ntchitoyo ndi yosakhazikika, nyali zidzawala, ndi zina zotero. Koma mtengo wathunthu ndi kulingalira kwachangu, simungatsatire mwachimbulimbuli kuchuluka kwa ma dalaivala amtundu wa Ultra-wide voltage: chifukwa voteji ya dalaivala imangokhala mumtundu wina, kuyendetsa bwino ndiko kuyendetsa bwino kwambiri. Pambuyo podutsa muyeso, mphamvu ndi mphamvu (PF) zidzawonongeka. Panthawi imodzimodziyo, mapangidwe amtundu wamagetsi a dalaivala ndi ochuluka kwambiri, zomwe zidzachititsa kuti ndalama ziwonjezeke komanso kusagwira ntchito bwino sikungatheke. Ngati kuchuluka kwa mphamvu ndi kuchepetsa zofunikira sizikuganiziridwa, mphamvu yodziwika bwino ya ma drive a LED imatanthawuza zomwe zimayesedwa ndi chilengedwe chovoteledwa ndi voliyumu yake. Poganizira kuti makasitomala osiyanasiyana azikhala ndi mapulogalamu osiyanasiyana, ambiri ogulitsa ma drive a LED apereka njira yochepetsera mphamvu pazomwe amapangira (katundu wamba wa VS wozungulira kutentha wopindika ndi kutsitsa VS voteji yochepetsera)). Mzere wofiira umasonyeza kuti pamene mtengo wa LED kuwala gwero module ndi athandizira 120VAC, mphamvu kuchepetsa pamapindikira ndi yozungulira kutentha kusintha. Pamene kutentha yozungulira ndi otsika kuposa 50 C, dalaivala amalola 100 katundu zonse. Kutentha kozungulira kumakhala kokwera mpaka 70 C, dalaivala amatha kuchepetsa katunduyo mpaka 60%. Pamene kutentha kozungulira kumasintha pakati pa 50-70 C, kuyendetsa galimotoyo kumakhala ndi kutentha ndi kutentha ndi kutentha Kukwera ndi kuchepa kwa mzere. Mphepete mwa buluu imasonyeza kuti pamene dalaivala wa LED alowa 230VAC kapena 277VAC, katundu wake amakhala ndi mphamvu yochepetsera mphamvu ndi kusintha kwa kutentha kozungulira. Kupindika kwa buluu kumatanthauza kuti dalaivala wa LED akafika 55 C, njira yochepetsera mphamvu yotulutsa ndi kusintha kwamagetsi olowera. Pamene voteji athandizira ndi 140VAC, katundu dalaivala amalola 100 katundu wathunthu, ndipo monga athandizira voteji yafupika; ngati mphamvu yotulutsa imakhalabe yosasinthika, zowonjezera zamakono zidzauka, zomwe zimabweretsa kuwonjezeka kwa kutayika kwa mapeto a zolowetsa, kuchepa kwachangu, kutentha kwa chipangizocho kudzawuka, kutentha kwa munthu payekha kungakhale kotheka. Kuchulukirachulukira kungayambitsenso zida kulephera. Chifukwa chake, voteji yolowera ikachepera 140VAC, kuchuluka kwa dalaivala kumafunika kuchepetsedwa ndi voteji yolowera ndi kuchepa kwa mzere. Mukamvetsetsa zokhotakhota zapamwamba komanso zofunikira zofananira, posankha mtengo wa gawo la gwero la kuwala kwa LED, muyenera kuganizira mozama ndikusankha molingana ndi kutentha kwachilengedwe komanso momwe magetsi akulowera, ndikusiya moyenerera kuti musiye kuchepetsa kuchepetsa kuchepetsa kuchepetsa ndalama.

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