Xa umthombo wokukhanya omtsha ungena kwimarike, ingxaki ye-stroboscopic nayo yavela. UMiller I we-PNNL uthe: I-amplitude yokukhanya okuphumayo kwe-LED ingaphezulu nangaphezulu kunaleyo yesibane se-incandescent okanye isibane se-fluorescent. Nangona kunjalo, ngokungafaniyo ne-HID okanye izibane ze-fluorescent, ukukhanya okuqinileyo kwe-SSL sisixhobo se-DC, okuthetha ukuba xa umbane oqhubekayo unikezelwa, i-LED inokukhanyiswa ngaphandle kwe-flicker.
Kwezo zijikelezo ezilula ze-LED ezingasebenzisi i-drive yohlengahlengiso oluqhubekayo lwangoku, ukukhanya kwe-LED kuya kutshintsha kunye nomjikelo wangoku oguqukayo. I-drive idlala iindima ezimbini, ukunikezelwa kwamandla kunye nokulungiswa. Inkqubo yokuguqulwa ukusuka ekuqhubeni ukuya kwi-LED, ukutshintshwa kwangoku ukuya ngqo ngoku kuya kuvelisa i-voltage kunye ne-ripple output yangoku. Olu hlobo lwe-ripple lukhona ngokuphindwe kabini ukuphindaphindeka kombane wobonelelo, oyi-120H e-United States. Kukho ubudlelwane obuhambelanayo phakathi kwemveliso ye-LED kunye nefom ye-wave wave ye-drive. Ubumnyama ngomnye unobangela wokuqhwanyaza. Iidimmers eziqhelekileyo, ezifana ne-TRIAC dimmers (icandelo le-elektroniki elinokuthi liqhube i-conduction yeendlela ezimbini), lungisa i-current kunye nokunciphisa ukukhutshwa kokukhanya ngokwandisa ixesha lokuvala ngexesha lokutshintsha. Kwii-LEDs, kulungele ukusebenzisa i-pulse width modulation (PWM) ukutshintshela ii-LED kwiifrikhwensi ezidlula i-200 Hz. Nangona kunjalo, uBenya ugxininise: "Ukuba usebenzisa ukumodareyitha kobubanzi be-pulse kwi-frequency ephantsi kakhulu, efana nesiqhelo sobonelelo lwamandla ombane, kuya kubangela ukubetha okuphezulu kakhulu."
Uhlalutyo lwengqiqo eqhelekileyo ye-LED stroboscopic:
Kukho izinto ezine ezinokwenzeka zokubangela ukuba umthombo wokukhanya we-LED ufinyeze okanye ulayite kwaye ucime.
I-1) Isibane sesibane se-ED asihambelani nombane wokuqhuba i-LED, kwaye i-bead ye-1W eqhelekileyo imelana nangoku: 280-30mA.
I-Voltage: 3.0-3.4V, ukuba i-chip yesibane ayinayo amandla aneleyo, iya kubangela ukuba umthombo wokukhanya udibanise, kwaye okwangoku kuphezulu kakhulu.
Xa ifunyenwe, iya kuvula kwaye icime. Kwiimeko ezimandundu, ucingo lwegolide okanye ucingo lobhedu olwakhelwe kwiso lesibane luya kutshiswa, nto leyo ebangela ukuba iliso lesibane lingakhanyi.
2) Kungenzeka ukuba unikezelo lwamandla okuqhuba lwaphukile, nje ukuba lutshintshwa ngomnye unikezelo lwamandla okuqhuba kakuhle, aluyi kukhanya.
3) Ukuba umqhubi unomsebenzi wokukhusela ubushushu obungaphezulu, kwaye ukutshatyalaliswa kobushushu bokusebenza kwesibane akukwazi ukuhlangabezana neemfuno, ukukhuselwa kobushushu bomqhubi kuqala.
Kuya kubakho into edanyazayo kunye nedanyazayo xa usebenza, umzekelo: Izindlu ze-20W ze-floodlight zisetyenziselwa ukudibanisa izibane ze-30W, akukho msebenzi wokutshatyalaliswa kobushushu. Kuya kuba njalo ukuba kwenziwe.
4) Ukuba isibane sangaphandle sibuye sibe ne-phenomenon yokukhanyisa kunye nokucima, ngoko isibane siya kukhukula kwaye isiphumo siya kukhanya kwaye asiyi kuvulwa. Amaso esibane kunye nomqhubi uya kwaphulwa. Nje buyisela umthombo wokukhanya.
Indlela yokunciphisa i-stroboscopic
Isitshixo sokunciphisa i-stroboscopic flicker kukuqhuba, esinokusombululwa ngokubonelela ngokuqhubekayo, okungahambiyo. Nangona kunjalo, abavelisi kufuneka balinganise ezinye izinto zokuqhuba iindleko, ubungakanani, ukuthembeka kunye nokusebenza kakuhle xa bexhasa iimveliso ze-LED. URee umelwe nguMark McClear, usekela mongameli wezobunjineli. Ukusetyenziswa okujoliswe kuyo kwe-luminaire kufuneka kuqwalaselwe ukuqinisekisa ukuba imveliso ayilungiswanga ngokugqithisileyo, kuba kwezinye iimeko zokukhanyisa i-stroboscopic flicker iyamkeleka, kwaye ezinye azikho. UMcclear uphinde wathi: "Abavelisi bebezama ukunyusa ukuba zeziphi iimveliso ezifanelekileyo ukuba zeziphi izicelo, kunye nendlela yokwenza i-strobe yamkeleke ngaphandle kokunyusa iindleko." I-Capacitors inokulungelelanisa i-AC ripple ukusuka kumqhubi ukuya kwi-LED, kodwa nayo ineengxaki, utshilo uBenya. IiCapacitors zininzi kwaye zinovelwano kubushushu". Ke ngoko, kwindawo exineneyo kunye nencinci, njengomthombo wokukhanya otshintshileyo we-LED, ukusetyenziswa kwee-capacitors akusebenzi. Ngokusebenzisa i-pulse wide modulation (PWM) ii-LED ezihlengahlengiswayo, abavelisi banokuhlengahlengisa okwangoku kakhulu. iifrikhwensi eziphezulu ezidlula i-kilohertz ezininzi. Oku kufana neebhola ze-elektroniki eziqhuba izibane ze-fluorescent akusoloko kusenzeka." U-Benya uthe. Ukuze kube lula uvavanyo lokuhambelana phakathi kwee-dimmers kunye neenjini zokukhanya ze-LED ezicimayo (iinjini zokukhanya ze-LED), i-EMA (iNational Electrica/Manufacturers Association) ikhuphe i-NEMA SSL7A-2013 "I-Solid State Lighting SSL Phase Cut Dimming. : Ukuhambelana okuSisiseko ", esi sikhokelo sokukhanyisa abaqulunqi bemveliso kunye nabavelisi. Ngethuba nje ukuba i-dimmer kunye ne-injini yokukhanya kwe-LED idibana nomgangatho, iyahambelana. UMegan, umphathi weprojekthi yezobugcisa be-NEMA, uthe lo mgangatho ungowokuqala kwishishini. kwaye isayinwe ngabavelisi abakhulu abangama-24. Injongo ye-SSL7A kukulahla uvavanyo oluhambelanayo lwezibane kunye ne-dimmers. Yintoni ekufuneka igxininiswe kukuba lo mgangatho usebenza kuphela kwiiteknoloji emva kokuba umgangatho ukhululiwe. Njengoko kushiwo, umgangatho awuboneleli indlela "yokumisela ukuhambelana kweemveliso ezikhoyo okanye ezifakwe iinjini zokukhanya ze-LED kunye ne-dimmers ye-phase-cut".
Ixesha lokuposa: Jan-05-2022
