Lub teeb LED feem ntau pom qhov yuam kev thiab kev saib xyuas

Yuav kho lub teeb ci LED li cas? Zhuhai qhia txhua tus kom kawm ua. Cov teeb meem LED yooj yim kuj tuaj yeem kho lawv tus kheej. LED teeb yog txawv los ntawm yav dhau los incandescent teeb. Lub teeb incandescent yog qhov pib tawg. Yeej, tungsten filaments raug hlawv. LED teeb yog txawv. LED teeb yog tsim los ntawm LED tsav circuits thiab LED teeb hlaws. Feem ntau ntawm LED teeb tuaj yeem kho tau, tab sis tus nqi ntawm LED teeb tsis siab. Kaum tawm kaum tawm, yog li tsis muaj leej twg tshwj xeeb hauv kev kho LED teeb, tus nqi siab, lwm tus tsis kam kho, tus nqi qis, tus nqi zog tsawg dhau, yog li nws tsuas yog kho tau los ntawm cov neeg siv khoom. Yuav kho LED teeb li cas rau cov neeg siv? Muaj ntau qhov laj thawj rau qhov tsis ua haujlwm ntawm LED teeb, tab sis muaj qee qhov kev ua tsis tiav uas yooj yim heev. Nws raug nquahu kom cov neeg siv tuaj yeem sim kho lawv tus kheej thiab xyaum ua raws li kev xyaum. LED teeb feem ntau pom qhov yuam kev thiab kev saib xyuas 1. LED teeb hlaws dai puas lawm. Qhov no yog ib qho kev ua tsis tiav heev. Feem ntau, thaum LED teeb hlaws hlaws raug kub hnyiab, yuav muaj xim dub ntawm qhov chaw. Kev soj ntsuam kom zoo tuaj yeem paub qhov txawv. Txhawm rau kho qhov yuam kev no, koj yuav tsum tau nruab ib tus tub rog hlau. Tab sis yuav ua li cas yog tias tsis muaj LED teeb hlaws? Yuav siv tau 150 ωSab laug thiab txoj cai tsis kam hloov, yog tias tus tsav tsheb tam sim no tuaj yeem txuas ncaj qha. 2. Lim capacitance tsis ua haujlwm. Lub teeb ci LED yooj yim feem ntau kho cov hluav taws xob AC los ntawm kev ua siab ntev thiab txo qhov siab, thiab tom qab ntawd siv lub teeb ci LED hlaws hlaws los ntawm kev lim dej capacitor. Yog hais tias lub lim capacitor tsis ua haujlwm yuav ua rau qhov tsis muaj zog, qhov DC voltage tsawg, uas ua rau lub teeb LED tsaus. Ntsuas lub peev xwm ntawm lub lim capacitor nrog cov ntaub ntawv multimeter capacitor. Yog tias qhov yuam kev loj, qhov yuam kev loj dua li ntawm 30%. Nws txhais tau hais tias lub capacitance tau deteriorated. Nrhiav qhov voltage tsis kam thiab muaj peev xwm ntau dua li qhov sib npaug ntawm lub capacitor parameter. 3. Lub peev xwm kuj poob-down module puas lawm. Lub peev xwm tiv thaiv poob module muaj lub capacitor capacitor thiab tsis kam mus ua ke. Nws tuaj yeem siv los ntsuas seb nws lub peev xwm thiab qhov ua haujlwm puas tuaj yeem raug puas tsuaj. 4. Rov qab los. Disassemble lub teeb LED thiab xyuas seb puas muaj kev cuam tshuam ntawm cov khoom siv sab hauv thiab cov khoom siv hluav taws xob. Yog tias ua tau, siv cov hluav taws xob soldering hlau los kho nws. 5. Rectification diode txhaum. Muaj kev ua txhaum xws li kev qhib txoj kev thiab luv luv Circuit Court, uas tej zaum yuav tshwm sim los ntawm over-flowing, los yog tej zaum yuav tshwm sim los ntawm kev siv tsis ua hauj lwm ntev. Nrhiav lub rectifier diode nrog tus nqi hluav taws xob thim rov qab ntau dua 350V thiab qhov ua haujlwm tam sim no ntau dua 0.5A, xws li 1N4004 1N4007, thiab lwm yam. 6. LED tsis tu ncua tam sim no tsav Circuit Court tsis ua hauj lwm. Rau cov kws tshaj lij uas xav tau qee qhov kev paub txog hluav taws xob-txog kev ua haujlwm ntawm qhov tsis ua haujlwm kho, lawv tuaj yeem nrhiav cov neeg ua haujlwm ntawm Zhuhai cov chaw tsim khoom rau kev saib xyuas. Cov chaw tsim khoom tshwj xeeb hauv kev tsim cov LED teeb hlaws. Nws yog kev nplua nuj hauv kev paub. Nws yog qhov zoo dua los hloov lub teeb tshiab LED hlaws tom qab qhov tsis ua haujlwm yooj yim saum toj no.