LED Switching Power Supply Overview
LED switching fais fab mov yog ib hom tshiab ntawm kev hloov fais fab mov tswj los ntawm pulse width modulation (PWM) technology, los ntawm Circuit Court los tswj lub switching tube thiab high-ceev txoj kev hla thiab txiav tawm. LED hloov fais fab mov hauv kev siv cov khoom siv hluav taws xob yog: LED diodes, IGBT thiab MOSFET.
Txheej txheem cej luam ntawm LED switching fais fab mov
LED switching fais fab mov yog hloov DC mus rau hauv high-frequency alternating tam sim no mus rau lub converter rau lub transformer, thiaj li hais tias nws yuav tsum tau ib los yog ntau tshaj ntawm voltage. Hloov mus rau high-frequency alternating tam sim no yog vim li cas high-frequency alternating tam sim no nyob rau hauv lub transformer Circuit Court yog ntau npaum li cas tshaj qhov hluav taws xob 50Hz los yog 60Hz. Yog li ntawd, lub zog hloov hluav taws xob hloov pauv tuaj yeem ua tiav hauv qhov me me, hauv kev hloov hluav taws xob hloov ua haujlwm yuav tsis kub heev, tus nqi ntawm cov khoom qis dua qhov muaj zaus DC tswj fais fab mov. Yog tias tsis yog 50Hz lossis 60Hz rau hauv high-frequency hluav taws xob, ces qhov hloov fais fab mov tsis ua rau muaj kev nkag siab. Kev hloov hluav taws xob tuaj yeem raug faib ua ib qho kev sib cais thiab tsis yog cais ob, yog cais yuav tsum muaj lub zog hloov hluav taws xob, thiab tsis cais yuav tsis tas yuav muaj lub zog hloov hluav taws xob. Hloov fais fab mov piv nrog cov khoom siv hluav taws xob DC ib txwm muaj qhov zoo ntawm qhov me me, lub teeb yuag, thiab kev ua haujlwm siab.
LED switching power supply high-frequency yog cov kev taw qhia ntawm nws txoj kev loj hlob, high-frequency switching power supply miniaturisation, thiab hloov fais fab mov mus rau ntau yam kev siv, tshwj xeeb tshaj yog nyob rau hauv lub tshav pob ntawm high thiab tshiab technology, los txhawb lub miniaturization ntawm high- tech khoom, lub teeb yuag. Tsis tas li ntawd, kev txhim kho thiab kev siv ntawm kev hloov hluav taws xob yog qhov tseem ceeb hauv kev txuag hluav taws xob, txuag cov peev txheej thiab kev tiv thaiv ib puag ncig.
Lub hauv paus ntsiab lus ntawm LED switching fais fab mov
AC voltage input rau LED hloov fais fab mov yog rectified thiab lim los tsim ib tug DC voltage ntawm txog 300V. Raws li kev tswj hwm ntawm cov nti tshwj xeeb, cov khoom siv hluav taws xob hloov pauv thiab hloov pauv hauv Circuit Court tsim cov hluav taws xob ntau zaus square-yoj voltage, uas tso tawm qhov siab-precision, ruaj khov DC voltage tom qab dhau los ntawm high-power rectifier.
LED switching fais fab mov nta
1, me me thiab lub teeb yuag.
2, dav kev khiav hauj lwm voltage ntau: input voltage tuaj yeem yog 170-264V hauv kev ua haujlwm ib txwm muaj.
3, kev nyab xeeb, kev ntseeg siab.
4, Kev tiv thaiv muaj nuj nqi: luv luv Circuit Court, dhau-tam sim no, overheating tiv thaiv.
5, kev ua haujlwm zoo tshaj plaws: lub zog hloov hluav taws xob muaj zog muaj 5-10 vib nas this ntawm kev ncua kev tshawb nrhiav Circuit Court tsim, tuaj yeem tshem tawm lub zog hluav taws xob ntawm qhov tso tawm tam sim no tsis ruaj khov siab, yog li tuaj yeem tiv thaiv kev thauj khoom los ntawm kev cuam tshuam siab. voltage (tshwj xeeb tshaj yog lub teeb ci LED, tuaj yeem txo qhov ua haujlwm voltage vim qhov hloov pauv sai ntawm lub teeb tsis ua haujlwm).
6, yooj yim rau nruab: cov khoom yog tsim los los nag (sab nraum zoov) thiab tsis rainproof (sab hauv tsev) ob. Cov khoom siv los nag tsis muaj zog siv lub zog siab, xeb-pov thawj hlau plhaub dai qauv tsim, tuaj yeem ntsia tau rau txhua qhov chaw dai, txo cov kev tawm tswv yim thiab tawm ntawm cov xov hlau txuas.
7, thaum lub load loj dhau lawm, lub hwj huam mov yuav raug tiv thaiv, cuam tshuam rau thiab tawm ntawm lub xeev txawv txav, lub sij hawm no lub load yuav tsum raug txo.
