Koj puas tau pom lub teeb me me, ci ntsa iab LED thiab xav paub tias nws ua haujlwm li cas? Vim li cas nws thiaj li muaj qhov ci ntsa iab thiab tsis hlawv sai? Vim li cas qee qhov LEDs ci dua thaum lwm tus dim sai? Tag nrho cov lus nug no los txog rau hom LED tsav tsheb siv.

LEDs (Lub teeb Emitting Diodes) yog ib hom kev teeb pom kev zoo uas siv tau zoo, ruaj khov, thiab siv tau ntev. Lawv xav tau tus tsav tsheb LED ua haujlwm kom raug thiab ua rau lawv lub peev xwm tag nrho. Cov ncej no yuav delve rau hauv lub ntiaj teb ntawm LED tsav tsheb, tshwj xeeb tshaj yog cov Tsis tu ncua tam sim no thiab tsis tu ncua Voltage LED tsav tsheb, thiab pab koj nkag siab qhov twg yuav yog rau koj qhov kev xav tau teeb pom kev zoo.

Yog tias koj xav paub txog LEDs lossis muaj ib qhov project uas muaj teeb pom kev zoo, nyeem rau kom nkag siab txog cov ntsiab lus tseem ceeb no.

I. Pib Qhia

Kev taw qhia luv luv rau LEDs (Light-Emitting Diodes)

Lub teeb Emitting Diodes or LEDs yog cov khoom siv semiconductor uas tawm lub teeb thaum muaj hluav taws xob dhau los ntawm lawv. Lawv paub zoo txog lawv cov kev ua tau zoo thiab kev ua haujlwm ntev, ua rau lawv nrov rau ntau yam kev siv teeb pom kev zoo, los ntawm cov teeb pom kev hauv tsev mus rau cov teeb liab thiab txawm tias cov ntxaij vab tshaus digital.

Kev piav qhia ntawm Kev Xav Tau rau LED Tsav Tsheb

Thaum ua tau zoo thiab muaj ntau yam, LEDs ua haujlwm txawv ntawm cov khoom siv hluav taws xob lossis cov fluorescent. Lawv xav tau cov xwm txheej tam sim no thiab qhov hluav taws xob kom ua haujlwm tau zoo, uas tus tsav tsheb LED pab txhawb.

Yog tsis muaj tus tsav tsheb, lub LED yuav kub dhau thiab tsis ruaj khov, ua rau kev ua haujlwm zoo tshaj plaws, qhov ci tsis sib xws, lossis txawm tias hlawv. Yog li ntawd, tus tsav tsheb LED yog qhov tseem ceeb ntawm txhua qhov system LED.

II. Nkag siab txog LED Tsav Tsheb

Lub ntsiab lus ntawm tus tsav tsheb LED

An LED tsav tsheb yog ib qho khoom siv hluav taws xob uas muaj tus kheej uas tswj hwm lub zog xav tau rau LED lossis ib txoj hlua (array) ntawm LEDs. Nws ua kom ntseeg tau tias LEDs ua haujlwm raws li lawv cov xwm txheej.

Lub luag haujlwm thiab qhov tseem ceeb ntawm LED tsav tsheb hauv LED teeb pom kev zoo

LED tsav tsheb ua lub luag haujlwm tseem ceeb hauv LED teeb pom kev zoo. Lawv tswj hwm qhov sib npaug ntawm qhov tam sim no thiab qhov hluav taws xob, uas yog qhov tseem ceeb los tiv thaiv LEDs los ntawm thermal puas thiab xyuas kom lawv ua haujlwm ntawm lawv qhov ua tau zoo.

Yog tias tsis muaj tus tsav tsheb tsim nyog LED, LEDs muaj qhov hloov pauv ntawm lub zog hluav taws xob, ua rau qhov ci tsis sib xws, xim hloov, flickering, thiab muaj peev xwm puas tsuaj. Yog li, tus tsav tsheb zoo LED yog qhov tseem ceeb rau lub neej ntev thiab kev ua haujlwm ntawm txhua qhov teeb pom kev zoo LED.

III. Tsis tu ncua tam sim no LED tsav tsheb

Kev piav qhia ntawm cov tsav tsheb tsis tu ncua tam sim no

A Tsis tu ncua tam sim no LED tsav tsheb tswj cov zis tam sim no, ua kom nws zoo ib yam tsis hais qhov kev tawm tswv yim voltage lossis hloov pauv. Cov yam ntxwv no yog qhov tseem ceeb rau kev siv hluav taws xob LED vim lawv xav tau qhov tam sim no kom ua haujlwm raug.

Yuav ua li cas Tam sim no LED tsav tsheb ua haujlwm

Tus neeg tsav tsheb tsis tu ncua tam sim no kho qhov hluav taws xob thoob plaws qhov tso zis kom tswj tau qhov dej ntws tsis tu ncua. Yog hais tias qhov kev tiv thaiv thoob plaws lub LED nce vim qhov kub thiab txias hloov los yog lwm yam, tus neeg tsav tsheb txo qhov tso zis voltage kom cov tam sim no tsis tu ncua.

Lub tswv yim ntawm Thermal Runaway thiab Yuav Ua Li Cas Tam Sim No LED Tsav Tsheb Tiv Thaiv Nws

Thermal runaway yog qhov teeb meem muaj peev xwm nrog LEDs. Nws tshwm sim thaum qhov kub thiab txias ua rau muaj qhov nce hauv qhov tam sim no, ua rau LED kom sov ntau dua, ua rau lub voj voog puas tsuaj uas tuaj yeem ua rau LED puas tsuaj thaum kawg.

Cov neeg tsav tsheb tsis tu ncua tiv thaiv qhov no los ntawm kev tswj xyuas qhov ruaj khov tam sim no txawm tias qhov kub hloov pauv, txo qhov kev pheej hmoo ntawm thermal runaway. 

Cov txiaj ntsig ntawm kev siv cov tsav tsheb tam sim no tsis tu ncua

Cov neeg tsav tsheb tsis tu ncua tam sim no ua kom muaj qhov ci zoo ib yam thoob plaws txhua qhov LEDs txuas nrog hauv cov koob, txhim kho qhov pom kev sib luag. Lawv kuj muaj txiaj ntsig zoo hauv kev zam LED burnout lossis thermal runaway.

Muaj peev xwm Drawbacks lossis txwv

Txawm hais tias lawv tau txais txiaj ntsig, Cov neeg tsav tsheb tsis tu ncua yuav muaj kev txwv. Piv txwv li, lawv xav tau kev sib raug zoo nrog LED cov kev xav tau tam sim no thiab feem ntau kim dua li cov tsav tsheb tsis tu ncua.

IV. Tsis tu ncua Voltage LED tsav tsheb

Kev piav qhia ntawm qhov tsis tu ncua Voltage LED tsav tsheb

A Tsis tu ncua Voltage LED tsav tsheb tswj qhov hluav taws xob ruaj khov tsis hais txog ntawm qhov kev thauj khoom tam sim no. Qhov no feem ntau yog siv rau LED systems twb tau nruab nrog resistors lossis on-board tam sim no tswj, xws li LED sawb teeb.

Yuav ua li cas Qhov Voltage LED Tsav Tsheb Ua Haujlwm

Ib tus neeg tsav tsheb qhov hluav taws xob tsis tu ncua tswj tib qhov hluav taws xob thoob plaws nws cov zis, tsis hais txog qhov tam sim no load. Qhov no yog qhov tshwj xeeb tshaj yog thaum siv hluav taws xob ntau LEDs txuas nrog tib lub sijhawm.

Cov txiaj ntsig ntawm kev siv cov hluav taws xob tsis tu ncua LED tsav tsheb

Cov neeg tsav tsheb tsis tu ncua yog paub txog kev tsim thiab kev teeb tsa engineers, uas tuaj yeem yooj yim rau kev teeb tsa. Lawv tuaj yeem muaj peev xwm txo tus nqi hauv cov ntawv thov loj dua vim lawv cov qauv tsim ncaj qha.

Muaj peev xwm Drawbacks lossis txwv

Ib qho kev txwv loj ntawm cov tsav tsheb tsis tu ncua yog lawv qhov kev cia siab ntawm cov khoom siv ntxiv rau kev tswj tam sim no hauv txhua chav LED. Qhov no tuaj yeem ua rau lub kaw lus nyuaj dua thiab tsis tshua muaj kev ntseeg siab nyob rau lub sijhawm ntev.

Piv txwv ntawm Daim Ntawv Thov

Cov ntawv thov rau cov neeg tsav tsheb tsis tu ncua muaj xws li cov teeb hauv qab txee thiab LED flex strip daim ntaub ntawv uas ntau LEDs txuas nrog rau tib lub sijhawm.

V. Kev sib piv ntawm qhov tsis tu ncua tam sim no thiab qhov hluav taws xob tsis tu ncua LED tsav tsheb

Cov lus hauv qab no qhia txog qhov sib txawv tseem ceeb ntawm Constant Current thiab Constant Voltage LED tsav tsheb:

Qhov kev xaiv ntawm ob yog nyob ntawm daim ntawv thov tshwj xeeb. Cov neeg tsav tsheb tsis tu ncua tam sim no feem ntau nyiam rau cov LEDs muaj zog, qhov kev tswj xyuas thermal yog qhov tseem ceeb. Ntawm qhov tod tes, cov tsav tsheb tsis tu ncua yog siv rau cov khoom siv LED nrog ntau lub LEDs sib sau ua ke, xws li LED hlua teeb, LED strips, thiab LED tuav.

VI. Xaiv txoj cai LED tsav tsheb

Yam yuav tsum tau xav txog thaum xaiv ntawm qhov tsis tu ncua tam sim no thiab qhov hluav taws xob tsis tu ncua LED tsav tsheb

Kev xaiv tus tsav tsheb LED txoj cai yog nyob ntawm ntau yam, suav nrog qhov tshwj xeeb LED lossis array qhov kev xav tau ntawm qhov hluav taws xob, tus lej thiab kev teeb tsa ntawm LEDs hauv qhov system (series lossis sib npaug), thiab lub zog ntawm koj ib puag ncig.

Lub tswv yim rau xaiv txoj cai LED tsav tsheb rau kev siv tshwj xeeb

Yuav tsum muaj tus tsav tsheb tsis tu ncua yog tias LED lossis array qhia txog qhov tshwj xeeb. Txawm li cas los xij, yog tias koj ua haujlwm nrog cov LEDs muaj zog, tus neeg tsav tsheb tsis tu ncua yuav muaj txiaj ntsig los tiv thaiv kev ua kom sov thiab ua kom muaj qhov ci zoo ib yam.

Xa mus rau cov chaw tsim khoom cov lus qhia tshwj xeeb thiab sab laj nrog tus kws tshaj lij teeb pom kev zoo yog tias koj xav tau kev qhia meej.

VII. FAQs

VIII. Xaus

LED tsav tsheb, txawm tias tsis tu ncua tam sim no lossis qhov tsis tu ncua, ua lub luag haujlwm tseem ceeb hauv kev tswj xyuas kev ua haujlwm thiab kev ua haujlwm ntev ntawm koj cov LEDs. Txawm hais tias ob qho tib si muaj lawv cov txiaj ntsig thiab kev txwv, koj qhov kev xaiv yuav tsum yog raws li cov kev cai tshwj xeeb ntawm koj lub LED system.