Kodi pali kusiyana kotani pakati pa LED yachizolowezi ndi COB LED?

Choyamba, ndikofunikira kumvetsetsa bwino ma LED a chipangizo chopangira pamwamba (SMD). Mosakayikira ndi ma LED omwe amagwiritsidwa ntchito kwambiri pakadali pano. Chifukwa cha kusinthasintha kwawo, ma chip a LED amalumikizidwa mwamphamvu ndi ma circuit board osindikizidwa ndipo amagwiritsidwa ntchito kwambiri ngakhale m'magetsi azidziwitso a mafoni. Chimodzi mwazinthu zodziwika bwino za ma chip a LED a SMD ndi kuchuluka kwa maulumikizidwe ndi ma diode.

Pa chip ya SMD LED, pakhoza kukhala maulumikizidwe opitilira awiri. Ma diode okwana atatu okhala ndi ma circuit odziyimira pawokha amapezeka pa chip imodzi. Chigawo chilichonse chili ndi anode ndi cathode, zomwe zimapangitsa kuti pa chip pakhale maulumikizidwe awiri, anayi, kapena asanu ndi limodzi.

Kusiyana pakati pa ma LED a COB ndi ma LED a SMD
Pa chip imodzi ya SMD LED, pakhoza kukhala ma diode atatu, iliyonse ili ndi dera lake. Dera lililonse mu chip yotereyi lili ndi cathode ndi anode, zomwe zimapangitsa kuti pakhale maulumikizidwe awiri, anayi, kapena asanu ndi limodzi. Ma chip a COB nthawi zambiri amakhala ndi ma diode asanu ndi anayi kapena kuposerapo. Kuphatikiza apo, ma chip a COB ali ndi maulumikizidwe awiri ndi dera limodzi mosasamala kanthu za kuchuluka kwa ma diode. Chifukwa cha kapangidwe kake kosavuta ka dera, magetsi a COB LED ali ndi mawonekedwe ofanana ndi panel, pomwe magetsi a SMD LED amawoneka ngati gulu la magetsi ang'onoang'ono.

Ma diode ofiira, obiriwira, ndi abuluu amatha kukhalapo pa chip ya SMD LED. Mwa kusintha kuchuluka kwa ma diode atatuwa, mutha kupanga mtundu uliwonse. Komabe, pa nyali ya COB LED pali ma contact awiri okha ndi dera limodzi. Sizotheka kupanga nyali kapena babu yosintha mtundu ndi iwo. Kusintha kwa njira zambiri kumafunika kuti musinthe mtundu. Chifukwa chake, nyali za COB LED zimagwira ntchito bwino mu ntchito zomwe zimafuna mtundu umodzi osati mitundu yambiri.

Kuwala kwa ma chips a SMD kumadziwika bwino kuti ndi ma lumens 50 mpaka 100 pa watt iliyonse. COB imadziwika bwino chifukwa cha kutentha kwake kwakukulu komanso kuchuluka kwa lumen pa watt iliyonse. Ngati chip ya COB ili ndi ma lumens osachepera 80 pa watt iliyonse, imatha kutulutsa ma lumens ambiri ndi magetsi ochepa. Itha kugwiritsidwa ntchito m'mitundu yosiyanasiyana ya mababu ndi zida, monga flash ya foni yam'manja kapena makamera owunikira.

Kuphatikiza pa izi, ma chip a SMD LED amafuna gwero laling'ono la mphamvu zakunja, pomwe ma chip a COB LED amafuna gwero lalikulu la mphamvu zakunja.