Peb dimmable LED fluorescent teeb
Shanghai Longmao Microelectronics Co., Ltd. tsis ntev los no tau tshaj tawm ob peb dimmable LED fluorescent teeb. Txawm hais tias lub teeb fluorescent yav dhau los muaj qhov ua tau zoo luminous, lawv muaj cov tshuaj lom neeg-mercury, thiab lawv tsis tuaj yeem dim. Tam sim no lub luminous efficiency ntawm LED tau ntes nrog thiab tshaj ntawm cov teeb fluorescent zoo tib yam. Nyob rau hauv tib lub ci ci, lub zog nkag ntawm LED fluorescent teeb tuaj yeem raug txo los ntawm ib nrab, thiab nws tsis muaj tshuaj lom. Nws yog lub teeb ntsuab thiab ib puag ncig tus phooj ywg tshiab. Tsis tas li ntawd xwb, LED yog ib qho yooj yim heev los hloov lub brightness ntawm lub cuab yeej, tsuav yog input ib pulse width modulation (PWM) teeb liab, nws yuav dimmed, yog li Longmao tau qhia peb dimmable LED fluorescent teeb.
Thawj yog phau ntawv dimming LED fluorescent teeb. Nyob rau hauv ntau zaus, nws yog ib qho tsim nyog los kho qhov ci ntawm LED fluorescent teeb. Phau ntawv no dimming fluorescent teeb siv tib lub pob qhov rooj ntsia ntawm lub teeb hloov raws li cov teeb pom kev zoo tib yam dimming, tab sis nws tsis zoo li lub teeb incandescent. SCR yog siv, yog li nws yuav tsis ua rau muaj kev cuam tshuam rau hauv cov hlua hluav taws xob. Nws tsuas yog qis qis PWM teeb liab generator. Tsim cov teeb liab dimming xav tau, xa mus rau qhov dimmable boost tas li tam sim no tsav qhov chaw SLM2842SD, thiab xa mus rau LED fluorescent teeb rau dimming. Daim duab block yog raws li nram no:
Qhov thib ob yog photosensitive dimming LED fluorescent teeb
Muaj ntau zaus, lub teeb hloov txhua lub sijhawm. Piv txwv li, nyob rau hauv ib qho chaw ua hauj lwm nyob ze ntawm lub qhov rais, nws yuav ci heev nyob rau hauv tshav ntuj huab cua. Lub sijhawm no, qhov ci ntawm lub teeb fluorescent tsis tas yuav ci li ntawd. Tom qab siv lub photosensitive nws pib-dimming LED fluorescent teeb, Nws tuaj yeem dimmed nyob rau hnub tshav ntuj thiab ci dua nyob rau hauv cov huab cua los nag, uas tuaj yeem txuag hluav taws xob ntxiv. Tsis tas li ntawd, lub teeb fluorescent hauv tsheb subway muaj qhov xwm txheej zoo sib xws. Hauv cov nroog loj, cov tsheb ciav hlau feem ntau khiav hauv av, thiab lub sijhawm no, cov tsheb sab hauv xav tau kev ci ntsa iab ntau dua. Nyob rau hauv suburbs, lub subway feem ntau khiav mus rau hauv av. Lub sijhawm no, qhov ci ntsa iab sab nraud yog ci heev, thiab tsis tas yuav muaj teeb pom kev sab hauv. Yog tias siv photosensitive tsis siv neeg dimming, qhov ci ntsa iab hauv lub carriage tuaj yeem hloov kho.
Nws txoj hauv kev tsim kho zoo ib yam li phau ntawv dimming, tshwj tsis yog tias phau ntawv dimming pob qhov hloov pauv mus rau lub teeb pom kev zoo, thiab PWM teeb liab lub tshuab hluav taws xob tau hloov mus siv ib lub chip microcomputer los tsim PWM dimming teeb liab.
Qhov thib peb hom ntawm dimmable LED teeb tsis tas yuav tsum nyob rau hauv daim ntawv ntawm cov teeb fluorescent, tab sis tuaj yeem ua tau txhua yam ntawm cov teeb pom kev zoo LED, uas yog siv rau hauv lub teeb qhov av. Nyob rau hauv daim ntawv thov ntawm qhov teeb pom kev zoo, nws tseem yuav tsum tau kho qhov ci ci ntawm LED teeb raws li nruab hnub thiab hmo ntuj, hnub ci lossis huab cua thiab hnub los nag, uas yuav tsum muaj cov cuab yeej uas tuaj yeem dim lub teeb ntawm qhov ntev (ntau mais mus rau kaum tawm. kilometers). Tuam txhab Shanghai Longmao kuj tau ua tiav qhov teeb meem no thiab tau thov kom muaj kev ntseeg siab ntev-ntev dimming system.
Tam sim no peb cov khoom dimming no tau thov rau patents.
LED fluorescent teeb siv nyob rau hauv kev tsim ntawm coj fluorescent teeb yog tag nrho cov high-brightness SMD LEDs nrog ib tug thermal kuj ntawm tsuas yog 45 ℃ / W, thiab siv ib lub raj nrog ib tug semi-aluminium radiator. Vim hais tias lub zog tsav yog sab nraud, nws tuaj yeem siv tsis tau ua-hauv Aluminium alloy raj nrog tag nrho cov dab dej kub hauv qhov chaw txhim kho cov cua sov dissipation efficiency thiab zam lub teeb lwj ntawm qee qhov LEDs tshwm sim los ntawm cov cua sov ntawm cov khoom siv hluav taws xob. , yog li txo qhov kub ntawm LED hlws ris thiab ua kom lub neej ntev ntawm LED, uas tuaj yeem ua tau 50,000 xuab moos Kev pab lub neej. Ntxiv mus, AC fais fab mov txais yuav ib qho kev sib cais hloov hluav taws xob, uas tuaj yeem ua tiav CE ntaus hluav taws xob siab, uas tseem tuaj yeem tshem tawm cov hluav taws xob poob siab rau cov neeg siv. Hom teeb fluorescent no tau tsim nyob rau hauv cov khoom me me kom tau raws li qhov xav tau ntawm cov neeg siv feem ntau.
