Lokacin da sabon tushen haske ya shiga kasuwa, matsalar stroboscopic ita ma ta bayyana. PNNL's Miller Na ce: Girman fitowar hasken LED ya ma fi na fitilun wuta ko fitilar kyalli. Koyaya, sabanin HID ko fitulun kyalli, ingantaccen haske SSL na'urar DC ce, wanda ke nufin cewa lokacin da aka ba da wutar lantarki akai-akai, ana iya kunna LED ɗin ba tare da flicker ba.
Ga waɗancan da'irori masu sauƙi na LED waɗanda ba sa amfani da keɓaɓɓen keɓaɓɓen injin daidaitawa na yanzu, hasken LED zai canza tare da madauwari na yanzu. Motar tana taka rawa biyu, samar da wutar lantarki da gyarawa. Tsarin juyawa daga tuƙi zuwa LED, sauyawa na yanzu zuwa na yanzu kai tsaye zai haifar da ƙarfin lantarki da abubuwan fitarwa na yanzu. Wannan nau'in ripple yana wanzuwa a ninki biyu na ƙarfin wutar lantarki, wanda shine 120H a Amurka. Akwai ma'amala mai ma'ana tsakanin fitarwa na LED da yanayin fitarwa na tuƙi. Dimming wani dalili ne na flicker. Dimmers na al'ada, irin su TRIAC dimmers (bangaren lantarki wanda zai iya gudanar da tafiyar matakai biyu), daidaita halin yanzu kuma rage fitowar hasken ta hanyar tsawaita lokacin rufewa yayin zagayowar sauyawa. Don LEDs, yana da kyau a yi amfani da yanayin juzu'in bugun jini (PWM) don canza LEDs a mitoci fiye da 200 Hz. Duk da haka, Benya ya jaddada: "Idan kun yi amfani da na'ura mai kwakwalwa na bugun jini a mafi ƙarancin mitar, kamar mitar wutar lantarki ta al'ada, zai haifar da flicker sosai."
Nazarin hankali na gama gari na LED stroboscopic:
Akwai yuwuwar guda huɗu don sa tushen hasken LED yayi flicker ko kunna da kashewa.
1) Gilashin fitilar ED bai dace da samar da wutar lantarki na LED ba, kuma kullun 1W na yau da kullun yana jure halin yanzu: 280-30mA.
Ƙarfin wutar lantarki: 3.0-3.4V, idan guntuwar fitilar ba ta da isasshen ƙarfi, zai sa tushen hasken ya yi flicker, kuma na yanzu yana da girma.
Lokacin da aka karɓa, zai kunna kuma yana kashewa. A lokuta masu tsanani, wayar zinare ko tagulla da aka gina a cikin fitilun fitilu za su ƙone, wanda zai sa kullun fitilar ba ta haskaka ba.
2) Watakila wutar lantarkin da ke tuki ta karye, muddin aka maye gurbinsa da wani nagartaccen wutar lantarki mai kyau, to ba za ta haska ba.
3) Idan direban yana da aikin kariya mai zafi fiye da zafin jiki, kuma kayan aikin watsawar zafi na fitilar ba zai iya biyan buƙatun ba, kariya daga zafin zafin direban yana farawa.
Za a yi wani abu mai walƙiya da walƙiya lokacin aiki, alal misali: ana amfani da gidaje na 20W don haɗa fitilu na 30W, babu aikin zubar da zafi. Zai kasance kamar haka idan an yi.
4) Idan fitilar waje ita ma tana da al'amarin walƙiya a kunne da kashewa, to fitilar za ta yi ambaliya, sakamakon zai kasance yana walƙiya kuma ba zai kunna ba. Za a karye ƙullun fitila da direba. Kawai maye gurbin tushen hasken.
Yadda za a rage stroboscopic
Makullin rage flicker stroboscopic shine tuƙi, wanda za'a iya warware shi ta hanyar samar da na yau da kullun, mara motsi. Koyaya, masana'antun dole ne su auna sauran abubuwan don fitar da farashi, girman, dogaro da inganci yayin tallafawa samfuran LED. Ree yana wakiltar Mark McClear, mataimakin shugaban injiniya. Hakanan ana buƙatar yin la'akari da amfanin da aka yi niyya na luminaire don tabbatar da cewa samfurin bai wuce ƙima ba, saboda a wasu yanayin hasken stroboscopic flicker yana da karɓuwa, wasu kuma ba. Mcclear ya kuma ce: "Masu masana'antu sun yi ƙoƙari su inganta samfuran da suka dace da waɗanne aikace-aikacen, da kuma yadda za a sa strobe ya karɓe ba tare da ƙara farashi ba." Capacitors na iya daidaita ripple AC daga direba zuwa LED, amma kuma yana da rashin amfani, in ji Benya. Capacitors suna da girma kuma suna kula da zafi." Saboda haka, a cikin ƙananan sarari da iyakataccen sarari, kamar LED sauya tushen hasken wuta, amfani da capacitors baya aiki. high mita wuce da dama kilohertz Ba koyaushe yana yiwuwa ba." Benya ya ce. Domin a sauƙaƙe gwajin dacewa tsakanin dimmers da dimmable LED light injuna (LED light injuna), EMA (National Electrica / Manufacturers Association) ya saki NEMA SSL7A-2013 "Solid State Lighting SSL Phase Cut Dimming : Daidaitawar asali ", wannan jagora ne ga masu zane-zane da masana'antun samar da hasken wuta. Muddin dimmer da LED light engine sun dace da ma'auni. kuma manyan masana'antun 24 sun sanya hannu. Manufar SSL7A ita ce kawar da gwajin dacewa na fitilu da dimmers. Abin da ya kamata a jaddada shi ne cewa wannan ma'aunin ya shafi fasaha ne kawai bayan an fitar da ma'auni. Kamar yadda ya ce, ma'auni ba ya samar da hanyar da za a "ƙayyade dacewa da samfurori na yanzu ko shigar da injunan hasken LED da dimmers masu yanke lokaci".
Lokacin aikawa: Janairu-05-2022
