Yuav ua li cas Circuit Court ntawm Board (COB) Teeb Ua Haujlwm

Yuav ua li cas Circuit Court ntawm Board (COB) Teeb Ua Haujlwm

Piav COB Teeb.

Chip on board (COB) LEDs, uas yog qhov tshiab ntawm lub lag luam LED, muaj ntau yam txiaj ntsig tshaj qhov kev xaiv. Txhawm rau tsim ib qho module, cov chaw tsim khoom yuav sib txuas ntau cov chips LED (feem ntau cuaj lossis ntau dua) ncaj nraim mus rau lub substrate. Txij li cov LEDs ib leeg siv hauv COB yog cov chips ntau dua li cov khoom siv hauv cov khoom siv, cov chips tuaj yeem txuas mus rau chav tsev tsawg dua thaum tseem ua kom cov LED chips muaj peev xwm. Thaum lub pob COB LED tau siv rau, nws zoo li ib lub teeb pom kev zoo dua li nws xav tau yog tias ob peb SMD LED tau teeb tsa nruj ua ke.

Cov txiaj ntsig ntawm COB LEDs

Vim hais tias COB LEDs muaj ntau lub nti ntim, lawv tuaj yeem tso tawm ntau lub teeb ib square inch dua li cov LEDs li niaj zaus vim tias lawv lub teeb emitting nto tuaj yeem haum ob peb zaug ntau qhov chaw teeb.

COB LEDs fais fab nws ntau diode chips siv ib lub voj voog nrog tsuas yog ob qho kev sib txuas. Yog li ntawd, yuav tsum muaj cov khoom siv tsawg dua rau txhua lub LED nti kom ua haujlwm zoo. Tsis tas li ntawd, cov khoom siv tsawg dua thiab tsis muaj cov khoom ntim rau cov qauv LED nti tuaj yeem txo cov cua sov uas tsim los ntawm txhua LED nti. Thaum txuas nrog rau sab nraud heatsink, ceramic / aluminium substrate ntawm COB LEDs kuj ua hauj lwm raws li ib tug ntau dua efficiency tshav kub hloov mus rau nruab nrab, heev txo qhov sib dhos lub zuag qhia tag nrho kev khiav hauj lwm kub. Txhawm rau ua kom zoo tshaj plaws ntawm COB, kev saib xyuas yuav tsum tau ua thaum txuas rau lub heatsink. Lub heatsink yuav tsum muaj peev xwm dissipate lub tshav kub uas tsim. Nyob rau tib lub sijhawm, cov cua kub kom zoo ua rau cov khoom tsim tau zoo thiab txo qis kev ua haujlwm.

Qhov tseeb hais tias qhov chaw soldering ntawm ib tus neeg LED chips tsis tas yuav tsum tau vim tias txhua lub nti ncaj qha tso rau hauv lub substrate yog lwm qhov tshwj xeeb ntawm COB LEDs uas txo qis qhov tsis ua haujlwm. Qhov tsis ua hauj lwm tus nqi txo qis vim qhov tsawg dua qhov chaw vuam.

Thaum ua hauj lwm COB LEDs, lo ntsiab muag thiab lwm cov pa ntim cov khoom siv LED raug tshem tawm, uas ua rau muaj qhov txo qis hauv lub teeb poob thiab nce qhov pom ntawm lub kaum ntse ntse.

Ib tug drawback ntawm COB LEDs

Ib qho teeb meem ntawm COB LEDs yog tias tam sim no tsuas muaj ob peb yam xim sib txawv muaj nyob (xiav, ntsuab, liab, liab, txias dawb, nruab nrab dawb, thiab sov dawb).

Kev siv COB LED teeb pom kev zoo

Lub spectrum ntawm COB LEDs 'muaj peev xwm siv tau yog dav. Lub hom phiaj tseem ceeb ntawm COB LEDs yuav yog cov teeb pom kev zoo hauv lub xeev (SSL) hloov pauv rau cov hlau-halide teeb hauv cov ntawv thov suav nrog cov teeb pom kev zoo, teeb pom kev hauv txoj kev, thiab cov teeb pom kev zoo thiab cov teeb pom kev zoo, thaum cov teeb no kuj tseem siv tau rau ntau dua lub zog dav dav teeb pom kev zoo.

Cov kauj ruam tseem ceeb uas yuav tsum tau ua kom muaj zog COB LED tau pom nyob rau hauv daim duab 2. Hauv qhov piv txwv no, Citizen CLU721 Series COB LED tau muab qhov tsis tu ncua 1.05 A los ntawm Excelsys Technologies LXC42-1050SW tsav.

Tus neeg tsav tsheb tuaj yeem xa mus rau 1.05 A mus rau COB LED (qhov no muaj qhov ntsuas tam sim no ntawm 1.05 A thiab qhov ntsuas siab tshaj plaws ntawm 1.38 A) thiab yuav tsis raug mob los ntawm kev tsav tsheb dhau mus. Qhov input voltage ntau rau tus tsav tsheb yog 90 txog 305 VAC. Ntxiv mus, cov neeg tsav tsheb ua haujlwm tau zoo dua thiab ua rau muaj kev poob qis hauv lub cev tag nrho thaum lawv ua haujlwm ze rau lawv lub peev xwm tag nrho (qhov no, 39.48 W tawm ntawm qhov siab tshaj 42 W).

Xaus

Raws li cov neeg tsim qauv paub ntau ntxiv txog lawv qhov zoo dua li cov qauv kev daws teeb meem LED, COB LEDs tau siv ntau zaus hauv kev siv teeb pom kev zoo. Nws yog ib qho nyuaj rau tsis xav txog lawv rau ib qho kev teeb pom kev zoo tsim tau muab lawv lub peev xwm los haum ntau qhov chaw LED rau hauv qhov chaw me me rau cov khoom siv lumen ntxiv, lawv lub peev xwm los hloov cov cua sov kom zoo dua rau lub heatsink, qis qis dua vim lawv txoj kev tsim kho yooj yim, lawv lub teeb poob qis, thiab lawv qhov pom lub kaum ntse ntse.

Paub meej ntxiv