Yuav kho qhov tawg ntawm LED teeb li cas? Kawm ua koj tus kheej, cov teeb meem LED yooj yim tuaj yeem kho los ntawm koj tus kheej.
LED teeb yog txawv los ntawm yav dhau los incandescent teeb. Thaum lub teeb incandescent tawg, tungsten filament yog qhov pib hlawv tawm. Nws tsis tuaj yeem kho tau thiab tsuas yog hloov tau. LED teeb yog txawv. LED teeb yog tsim los ntawm LED tsav circuits thiab LED teeb hlaws. Feem ntau ntawm cov hluav taws kub LED tuaj yeem kho tau, tab sis tus nqi ntawm LED teeb tsis siab, feem ntau yog nyob ib ncig ntawm 10 ~ 20 las. Ib qho taw qhia yog ob peb lub kaum os, yog li tsis muaj leej twg tshwj xeeb hauv kev kho lub teeb LED. Yog tus nqi siab, lwm tus tsis kam kho nws. Yog tias tus nqi qis, tus nqi ua haujlwm tsawg dhau los ua qhov tsim nyog. Feem ntau, cov neeg siv tsuas tuaj yeem kho nws ntawm lawv tus kheej.
Raws li ib tug neeg siv, yuav ua li cas kho LED teeb? Muaj ntau qhov laj thawj rau qhov tsis ua haujlwm ntawm LED teeb, tab sis qee qhov kev ua tsis tiav yog qhov yooj yim, thiab cov neeg siv tuaj yeem sim kho lawv ntawm lawv tus kheej raws li kev xyaum.
Feem ntau faults thiab tu txoj kev ntawm LED teeb
1. LED teeb hlaws yog puas lawm. Qhov no yog ib qho txhaum heev. Feem ntau, thaum lub teeb ci LED hlaws hluav taws kub hnyiab tawm, yuav muaj cov pob dub ntawm qhov chaw, uas tuaj yeem paub qhov txawv ntawm kev ua tib zoo saib. Rau hom kev ua txhaum no, yuav tsum tau siv cov hlau soldering, thiab cov hlaws hluav taws kub hnyiab raug tshem tawm thiab hloov. Tab sis, yuav ua li cas yog tias tsis muaj LED teeb hlaws? Kev tiv thaiv ntawm 150Ω tuaj yeem siv tau, yog tias nws tau tsav los ntawm qhov chaw tam sim no, nws tuaj yeem ncaj qha luv luv.
2. Lub lim capacitor tsis raug. Cov teeb pom kev yooj yim LED feem ntau kho lub zog AC ncaj qha tom qab nqis los ntawm lub capacitive resistor, thiab tom qab ntawd muab lub zog rau LED teeb hlaws hlaws los ntawm kev lim dej capacitor. Yog tias lim capacitor tsis ua haujlwm, qhov voltage yuav tsis ruaj khov thiab DC voltage yuav qis, uas yuav ua rau lub teeb ci LED dim. Siv cov ntaub ntawv capacitance ntawm multimeter los ntsuas lub peev xwm ntawm lub lim capacitor. Yog tias qhov yuam kev loj, thiab qhov yuam kev ntau dua 30%, nws txhais tau tias lub capacitor tau deteriorated. Tsuas yog nrhiav tau lub capacitor nrog qhov hluav taws xob thiab muaj peev xwm ntau dua lossis sib npaug ntawm cov khoom siv capacitor.
3. Lub capacitive kuj step-down module puas lawm. Lub capacitive tiv thaiv kauj ruam-down module yog tsim los ntawm ib tug capacitor thiab ib tug resistor nyob rau hauv parallel. Siv ib lub multimeter los ntsuas seb lub capacitance los yog tsis kam puas. Yog tias nws puas lawm, nrhiav lub capacitor lossis tsis kam nrog qhov sib npaug los hloov nws.
4. Txoj kab raug txiav. Disassemble lub teeb ci LED thiab xyuas seb puas muaj kev cuam tshuam ntawm cov khoom siv sab hauv thiab cov khoom siv hluav taws xob. Yog tias muaj, siv lub tshuab hluav taws xob soldering hlau los kho thiab kho nws.
5. Lub rectifier diode yog faulty. Lub rectifier diode muaj qhov yuam kev xws li qhib Circuit Court thiab luv Circuit Court, uas tej zaum yuav tshwm sim los ntawm overvoltage thiab overcurrent, los yog nws yuav tshwm sim los ntawm kev siv tsis ua haujlwm ntev. Tsuas yog nrhiav tau lub rectifier diode nrog qhov rov qab tiv thaiv hluav taws xob ntau dua 350V thiab 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 yog faulty. Rau qhov tsis ua haujlwm zoo li no, nws yog ib qho tsim nyog yuav tsum muaj kev paub txog kev siv hluav taws xob los kho. Rau cov neeg siv dav dav, tom qab qhov yooj yim saum toj no tsis tuaj yeem nrhiav tsis tau qhov laj thawj, nws yog qhov zoo dua los hloov nrog lub teeb ci LED tshiab.
