Voltage poob nyob rau hauv LED teeb: Nws yog dab tsi thiab yuav ua li cas tswj nws
Thaum npaj thiab txhim kho LED teeb pom kev zoo-tshwj xeeb tshaj yog rau cov teeb ci sawb, cov kab khiav tawm, lossis cov ntawv thov vaj tsev-voltage poob yog ib qho tseem ceeb uas tsis tau pom dua qhov teeb meem hluav taws xob. Kev tsis lees paub rau nws tuaj yeem ua rau lub teeb pom kev tsis zoo lossis tsis sib xws, xim tsis sib xws, thiab txawm tias ntxov ntxov tsis ua haujlwm. Yog li, dab tsi yog qhov voltage poob, thiab vim li cas nws thiaj li tseem ceeb hauv LED teeb pom kev zoo?
Voltage Drop yog dab tsi?
Voltage poob yog qhov txo qis hauv hluav taws xob hluav taws xob uas tshwm sim raws li tam sim no taug kev los ntawm cov hlau. Tag nrho cov conductors muaj inherent resistance, thiab qhov ntev ntawm cov hlau los yog siab dua qhov tam sim no, qhov ntau dua qhov kev tiv thaiv. Qhov no ua rau lub ntsuas hluav taws xob poob nruab nrab ntawm lub zog hluav taws xob thiab cov khoom thauj -nyob rau hauv rooj plaub no, LED teeb.
Hauv kev teeb tsa LED, qhov hluav taws xob poob yuav pom tseeb thaum lub teeb nyob deb tshaj plaws ntawm lub zog hluav taws xob tshwm sim dimmer lossis nthuav tawm cov xim kub piv rau cov uas nyob ze rau nws.
Dab tsi ua rau Voltage poob hauv LED Systems?
Muaj ntau yam ua rau muaj kev poob qis:
Hlau Ntev: Ntev hlau khiav qhia ntau qhov kev tiv thaiv, ua rau muaj hluav taws xob ntau dua.
Hlau Gauge: Cov xov hlau nyias nyias (cov lej ntsuas siab dua) muaj qhov ua haujlwm siab dua. Kev siv cov xov hlau tsis zoo rau cov khoom thauj tam sim no ua rau kom muaj zog poob.
Load tag nrho: Ntau cov LEDs ntau dua los yog ntau dua lub zog kos ua rau cov dej ntws tam sim no, uas ua rau muaj qhov tsis kam thiab qhov hluav taws xob poob.
Fais fab mov nrug: Thaum tus tsav tsheb lossis transformer nyob deb dhau ntawm qhov teeb pom kev teeb pom kev zoo, qhov hluav taws xob tseem ceeb tuaj yeem tshwm sim ua ntej lub hwj chim txawm mus txog lub LEDs.
Qhov System Voltage: 12V DC systems muaj ntau qhov hluav taws xob poob rau tib qhov kev ncua deb piv rau 24V DC systems, raws li qhov hluav taws xob qis dua yuav tsum muaj tam sim no ntau dua kom xa tau tib lub zog.
Yuav ua li cas ntsuas Voltage poob
Txhawm rau txiav txim siab qhov poob qis hauv koj qhov system LED:
Siv lub Multimeter:
Qhib lub LED system.
Ntsuas qhov hluav taws xob ntawm qhov hluav taws xob tso zis (piv txwv li, 24V).
Ntsuas qhov voltage dua ntawm qhov deb tshaj plaws ntawm LED sawb.
Qhov sib txawv ntawm cov kev nyeem no yog qhov poob qis.
Piv txwv:
Fais fab mov tso zis=24.0V
Voltage ntawm qhov kawg ntawm strip=22.4V
Voltage poob=1.6V
Cov teebmeem ntawm Voltage poob
Dim los yog tsis sib xws brightness, tshwj xeeb tshaj yog mus rau qhov kawg ntawm ib tug strip
Pom pom xim hloov (xws li, lub teeb dawb tig daj lossis xiav)
Txo lub neej ntev ntawm LEDs thiab tsav tsheb
Ua tsis tau raws li tus qauv tsim lossis kev nyab xeeb
Yuav Ua Li Cas Tiv Thaiv lossis txo qis Voltage poob
Siv Higher Voltage Systems: Xaiv rau 24V DC hloov 12V DC kom txo qhov tam sim no thiab txo qis qis.
Shorten Wire Runs: Muab cov khoom siv hluav taws xob ze li sai tau rau qhov teeb tsa LED.
Siv Cov Hlau Thicker: Upgrade mus rau qis dua -gauge hlau (eg, 14 AWG es tsis txhob 18 AWG).
Lub zog los ntawm Ntau Cov Ntsiab Lus: Hloov ib lub sijhawm ntev, pub lub zog los ntawm ob qho kawg lossis ntawm cov ntsiab lus nruab nrab.
Split lub Load: Siv cov hlua txuas txuas rau ntau ntu es tsis yog daisy - chaining lawv nyob rau hauv series.
Nruab ib lub Voltage Regulator: Pab tswj qhov hluav taws xob zoo ib yam uas lwm cov kev daws teeb meem tsis ua tau.
Benwei nyob ntawm no los pab
Ntawm Benwei, peb tshwj xeeb hauv kev pab koj tsim thiab siv cov teeb pom kev zoo LED uas yog ob lub zog- ua haujlwm tau zoo thiab pom kev zoo ib yam. Txawm hais tias koj tab tom teeb lub tsev so chaw tos txais, chav ua yeeb yam, lossis sab nraum zoov kos npe, peb tuaj yeem pab xaiv cov khoom tsim nyog thiab kev teeb tsa kom tsis txhob muaj teeb meem hluav taws xob poob.
Xav tau kev txhawb nqa kev npaj lossis cov ntaub ntawv nqi rau koj qhov project LED tom ntej?Tiv tauj peb hnub no!
