LED tsav tsheb yog cov khoom tseem ceeb hauv cov khoom siv teeb pom kev zoo thiab cov khoom siv, hloov cov khoom siv hluav taws xob rau hauv qhov chaw ruaj khov lossis qhov hluav taws xob tsim nyog rau kev ua haujlwm LED. Raws li tus choj ntawm kev hloov hluav taws xob thiab lub teeb hluav taws xob, tus neeg tsav tsheb qhov kev ua haujlwm ncaj qha cuam tshuam rau LED lub luminous efficiency, lifespan, thiab kev nyab xeeb. Nws cov haujlwm tseem ceeb suav nrog kev tswj xyuas qhov hluav taws xob tsis tu ncua / tsis tu ncua, kev kho hluav taws xob zoo, kev sib tw dimming, thiab kev tiv thaiv overvoltage / overcurrent, ua rau nws tsim nyog rau kev lag luam teeb pom kev zoo, backlight displays, smart home applications, thiab ntau dua.
Noj QFN4 ntim cov tsav tsheb ua piv txwv, nws cov qauv tsim (feem ntau nyob rau hauv 4mm × 4mm) ua tau raws li cov kev xav tau ntawm siab - ntom ntom Circuit Board layouts, ua rau nws tshwj xeeb tshaj yog haum rau qhov chaw- txwv cov khoom siv portable los yog cov cuab yeej precision. Cov pob no, los ntawm kev sib xyaw ua ke ntawm cov hlau lead thiab molding compound, tswj kom zoo thaum tshav kub kub dissipation thaum txo qhov loj me, tiv thaiv lub teeb lwj lossis cov cuab yeej puas vim qhov kub thiab txias. Piv txwv li, tus qauv FAN5646UC00X siv QFN4 pob, txhawb nqa 19+ batch ntawm cov khoom qub chaw tsim khoom (OEM) qhov chaw, thiab nws cov kev sib txuas sib txuas thiab cov lus tawm tswv yim ua tiav lub zog hloov pauv tau zoo. Cov ntawv thov ib txwm muaj xws li LCD backlight tsav tsheb thiab qis - lub zog teeb pom kev zoo.
Nyob rau theem kev ntsuas, kev xaiv ntawm LED tsav tsheb yuav tsum tau saib xyuas rau cov khoom siv hluav taws xob ntau, cov khoom siv tam sim no, thiab txoj kev dimming. Piv txwv li, cov teeb pom kev lag luam feem ntau xav tau cov neeg tsav tsheb los txhawb qhov dav dav ntawm qhov hluav taws xob ntawm 85-265V kom hloov mus rau lub zog hluav taws xob hloov pauv hauv cheeb tsam sib txawv; thaum lub teeb pom kev pom qhov chaw ua kom pom tseeb ntau dua ntawm cov ripple coefficient ntawm cov zis tam sim no (feem ntau qis dua 5%) kom tsis txhob muaj qhov screen flicker. Tsis tas li ntawd, kev sib raug zoo ntawm kev ua haujlwm dimming (xws li PWM dimming zaus xav tau kom haum rau LED teb ceev) kuj yog qhov tseem ceeb cuam tshuam rau cov neeg siv kev paub. Cov neeg tsav tsheb niaj hnub no tseem txhim kho kev ntseeg siab thiab txo cov nqi kho mob los ntawm kev sib koom ua ke tiv thaiv circuits (xws li dhau- kub kaw thiab luv- Circuit Court rov qab tus kheej).
Los ntawm kev lag luam kev xav, LED tsav tsheb yog tsim los ntawm kev sib koom ua ke thiab kev txawj ntse. Kev tsim qauv sib xyaw ua ke, los ntawm kev sib koom ua ke ntawm ntau qhov kev ua haujlwm (xws li PFC circuits thiab DC - DC converters) rau hauv ib lub nti, tuaj yeem txo qhov system complexity thiab nqi; kev txawj ntse, los ntawm kev qhia txog cov thev naus laus zis tswj kev siv thev naus laus zis (xws li I2C interfaces thiab programmable parameters), ua kom tsis muaj zog dimming thiab kev kuaj xyuas txhaum cai, ua tau raws li lub zog- txuag thiab kev tswj chaw taws teeb xav tau ntawm Internet ntawm Tej Yam era. Piv txwv li, qee qhov siab - tsav tsheb kawg twb txhawb kev hloov kho tsis siv neeg ntawm cov zis tam sim no raws li qhov siv lub teeb ci nyob ib puag ncig, txhim kho kev siv hluav taws xob ntxiv.
