Kubva mwenje wakapinda munguva yemarambi efluorescent, mwenje wakaperekedzwa nemwenje wange uchifashama nharaunda yedu yemwenje.Zvichienderana neyakajeka musimboti wemarambi efluorescent, dambudziko rekufinyamisa harina kunyatsogadziriswa.Nhasi, tapinda munguva yekuvhenekesa kwe LED, asi dambudziko rekupenya kwechiedza richiripo.
Chii chinonzi flicker
Flicker iko kushanduka kwechiedza chakasimba kana kupenya mune imwe nguva yenguva.Kupenya kwemwenje kunoitika mumashandisirwo mazhinji ekuvhenekesa, kusanganisira kupfura zvishoma paTV, kuvheneka mumigwagwa, nzvimbo dzakasiyana siyana dzekuvhenekesa uye nzvimbo dzebasa uchishandisa michina inotenderera inokurumidza.Flicker ichakanganisa hutano hwevanhu, uye dhigirii rekukanganisa rinoenderana nehuwandu hwekufinyamisa uye kunzwisiswa kwemunhu kuflicker.High frequency flicker haizove nekukanganisa kwakakosha pamuviri wemunhu, asi yakaderera frequency flicker pazasi 120 Hz iri nyore kukanganisa hutano hwevanhu.
Weighting function yeziso remunhu senits to flicker
Kukuvadza kwemwenje kupenya
Chiedza sosi flicker chakabatana zvakanyanya nemigraine, kutemwa nemusoro, autism, kuneta kwemaziso, kusaona uye zvimwe zvirwere zvetsinga.Zvidzidzo zvakaratidza kuti low-frequency, huwandu hwe3-70Hz scintillation light source inogona kukonzera photosensitive pfari kune vamwe vanhu vanonzwa;100Hz flicker frequency yakaonekwa kuti ikonzere musoro uye migraine;120Hz inopenya sosi yemwenje inogona kukanganisa mafungiro evanhu, sekufinha uye kusagadzikana.Kunyepa kwekuona kunokonzerwa neflicker mhedzisiro uye ine chekuita nemakanika kufamba kune njodzi munzvimbo dzemaindasitiri.Naizvozvo, kunyatsoyera uye kuongorora iyo flicker maitiro ezvigadzirwa zvemwenje zvine hukama zvakananga nehutano hwevanhu, rinova dambudziko rekukurumidzira kugadziriswa.
Zvikonzero zve flicker
Zvikonzero zvekupenya kwemarambi e LED zvinosanganisira kwete chete zvinhu zvemagetsi, asiwo zvikonzero zvehunyanzvi hwekuita kwemwenje sosi uye isina musoro dhizaini dhizaini.Ripple current ndechimwe chezvikonzero zvakakosha zvekufinyamisa mumagetsi emarambi mazhinji.Ripple yazvino ndiyo AC chikamu chichiripo mushure mekugadzirisa uye kusefa.Ripple yazvino inoiswa pamusoro peDC uye ine ma frequency akasiyana uye macurves.Ichi chikamu che AC chinoita kuti simba reiyo LED module ichinje, iyo inozoshandura kupenya.Huwandu uye kuwanda kweiyo superimposed AC ndiyo inogadzirisa zvinhu zve flicker.
IEEE Std 1789-2015
Dhiagiramu yetsanangudzo yeflicker index uye percent flicker
Nzira yekubvisa flicker
Mukuwedzera kune basa rekubvisa rima uye kuvhenekera zvakatipoteredza, kuvhenekera kunofanira kufunga nezvehutano hwehutano hwezvigadzirwa.Kusakuvara kuvanhu chikamu chekushanda kwemwenje kusingafanirwe kufuratirwa.
Zvichikanganiswa nekugadziriswa kwemagetsi emagetsi emagetsi (50Hz muEuropean standard), kuwanda kweiyo ripple ikozvino muchikamu chikuru che LED drive inopeta kaviri yemagetsi, ayo angangoita 100Hz.Uyezve, zvichienzaniswa nemwenje yechinyakare masosi, maLED anogona kushandura ikozvino kushanda kuita mwenje.Kuti uwane iyo mwenje yekubuda mhedzisiro pasina kupenya zvakanyanya sezvinobvira, yakakwirira-mhando ye LED mutyairi uye kuenderana pakati pemutyairi, dimmer uye LED module inokosha.Mufananidzo unotevera inzira yakajairika yekuongorora mudziyo wekudzora kuburikidza ne "output current ripple" kana "superiimposed AC".Kazhinji, kukosha kwakaratidzwa ndeye 100Hz.Iyo yakadzikira kukosha, inodzikira njodzi yekubhururuka.
IEEE Std 1789-2015
IEEE Yakakurudzirwa Mifananidzo yeModulating Yazvino muKupenya-Kupenya maLED ekuderedza Hutano Njodzi kune Vataridzi.
Mwenje yeWellway LED nemwenje, angave mwenje-yekudzivirira-mvura, marambi ebhuraketi, mapani uye marambi asingapindi guruva, kusanganisira mamodheru nemamodhimu ekuona chimbichimbi, vese vanoona basa racho vasingabatike.Simba remhando yepamusoro rinoshandiswa nerambi rinogona kuderedza kubuda ripple uye kuona kunyatsoenderana nemidziyo yemwenje.
(Mimwe mifananidzo inobva paInternet. Kana pane kukanganisa, tapota taura nesu uye uibvise pakarepo)
Nguva yekutumira: Aug-01-2022