Kana chiedza chitsva chikapinda mumusika, dambudziko restroboscopic rakauyawo. PNNL's Miller I akati: Iyo amplitude yekubuda kwechiedza che LED yakatokura kupfuura iyo yerambi incandescent kana mwenje wefluorescent. Nekudaro, kusiyana neHID kana mwenje wefluorescent, solid-state mwenje SSL ndeye DC mudziyo, zvinoreva kuti kana inogara iripo ichipihwa, iyo LED inogona kubatidzwa isina kupenya.
Kune iwo akareruka e LED maseketi asingashandise yakaparadzana anogara aripo ekugadzirisa dhiraivha, kupenya kwe LED kunoshanduka nekutenderera kwazvino kutenderera. Iyo drive inoita mabasa maviri, magetsi uye kugadzirisa. Iyo yekutendeuka maitiro kubva pakutyaira kuenda kuLED, kuchinjanisa ikozvino kune yakananga ikozvino kunoburitsa voltage uye ikozvino inobuda ripples. Rudzi urwu rweripple ruripo kaviri kuwanda kwemagetsi ekupa, ari 120H muUnited States. Pane hukama hunoenderana pakati pekubuda kweiyo LED uye yakabuda waveform yedhiraivha. Dimming chimwe chikonzero chekufinyamisa. Madhiri echinyakare, akadai seTRIAC dimmers (chikamu chemagetsi chinogona kuitisa maviri-nzira conduction), gadzirisa ikozvino uye kuderedza kubuda kwechiedza nekuwedzera nguva yekudzima panguva yekuchinja. Kune maLED, zvakanakira kushandisa pulse wide modulation (PWM) kushandura maLED pamafrequency anopfuura 200 Hz. Zvisinei, Benya akasimbisa kuti: "Kana ukashandisa pulse width modulation pane yakaderera frequency, seyakajairika magetsi emagetsi, zvinokonzeresa flicker yakanyanya."
Kuongororwa kwepfungwa kwe LED stroboscopic:
Pane mikana ina yekukonzeresa kuti sosi yemwenje ye LED ibatike kana kudzima nekudzima.
1) Iyo ED rambi bead haienderane neiyo LED yekutyaira magetsi, uye yakajairika imwechete 1W bead inomira ikozvino: 280-30mA.
Voltage: 3.0-3.4V, kana chigadziko chemwenje chisina simba rakakwana, chichaita kuti chitubu chechiedza chiwedzere, uye ikozvino yakanyanyisa.
Kana yagamuchirwa, ichabatidza nekudzima. Muzviitiko zvakakomba, waya yegoridhe kana waya yemhangura inovakirwa mubhedhi remwenje ichapiswa, zvichiita kuti bhero remwenje risavheneke.
2) Zvingave kuti simba rekutyaira rakaputsika, chero richitsiviwa neimwe yakanaka yekutyaira magetsi, haizovheneke.
3) Kana mutyairi aine basa rekudzivirira rinopfuura tembiricha, uye kupisa kwekupisa kwemwenje kuita kwemwenje hakugone kuzadzisa zvinodiwa, kudzivirira kwemutyairi kwepamusoro-tembiricha kunotanga.
Pachava nekupenya uye kupenya chiitiko kana uchishanda, semuenzaniso: 20W floodlight housing inoshandiswa kuunganidza 30W marambi, hapana basa rekupisa kupisa. Zvichaita sezvizvi kana zvikaitwa.
4) Kana mwenje wekunze unewo chiitiko chekupenya nekudzima, ipapo mwenje uchange wakazara nemvura uye chigumisiro chichave chichipenya uye hachizobatiki. Zvibereko zvemwenje nemutyairi zvichatyorwa. Ingotsiva chitubu chemwenje.
Nzira yekuderedza stroboscopic
Kiyi yekudzikisa stroboscopic flicker kutyaira, iyo inogona kugadziriswa nekupa inogara, isiri-oscillating ikozvino. Nekudaro, vagadziri vanofanirwa kuyera zvimwe zvinhu kutyaira mutengo, saizi, kuvimbika uye kugona kana uchitsigira zvigadzirwa zve LED. Ree anomiririrwa naMark McClear, mutevedzeri wemutungamiri weinjiniya. Iko kushandiswa kwakagadzirirwa kwechiedza chinodawo kutariswa kuti ive nechokwadi chekuti chigadzirwa hachina kugadzirwa zvakanyanya, nekuti mune mamwe mamiriro ekuvhenekesa stroboscopic flicker inogamuchirwa, uye mamwe haabvumirwe. Mcclear akatiwo: "Vagadziri vanga vachiedza kukwidziridza kuti ndezvipi zvigadzirwa zvakakodzera kune zvikumbiro, uye maitiro ekuita kuti strobe igamuchirwe pasina kuwedzera mutengo." Macapacitors anogona kugadzirisa iyo AC ripple kubva kumutyairi kuenda kuLED, asi zvakare ine zvayakaipira, Benya akadaro. Macapacitor ane hombe uye anonzwa kupisa." Naizvozvo, munzvimbo ine compact uye ine shoma, senge LED inotsiva mwenje sosi, kushandiswa kwema capacitor hakushande. Uchishandisa pulse wide modulation (PWM) inogadziriswa ma LED, vagadziri vanogona kugadzirisa ikozvino kusvika zvakanyanya. mafrequency akawanda anodarika kilohertz akati wandei hazviitike nguva dzose." Benya akadaro. Kuti kurerutsa bvunzo yekuenderana pakati pema dimmers neakadzima LED light engines (LED light engines), EMA (National Electrica/Manufacturers Association) yakaburitsa NEMA SSL7A-2013 "Solid State Lighting SSL Phase Cut Dimming. : Basic Compatibility ", iyi igwara rekuvhenekesa chigadzirwa vanogadzira uye vanogadzira. Chero bedzi iyo dimmer uye LED mwenje injini inosangana neyakajairwa, inowirirana. Megan, technical project maneja weNEMA, akataura kuti chiyero ichi ndicho chekutanga muindasitiri. uye yakasainwa nevagadziri vakuru makumi maviri nemana. Chinangwa cheSSL7A ndechekubvisa bvunzo yekufananidza mwenje uye dimmers. Chinoda kusimbiswa ndechekuti chiyero ichi chinongoshanda kune matekinoroji mushure mekunge chiyero chaburitswa. Sezvakarehwa, chiyero hachipi nzira ye "kuona kuenderana kwezvigadzirwa zviripo kana kuiswa LED mwenje injini uye chikamu-cheka dimmers".
Nguva yekutumira: Jan-05-2022
