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Blue14
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 04/02/2015 23:49:42
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#41
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Blue14
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Inseamna ca trebuie sa le schimb pe cele 2, daca sursa e de 4-5, maine cand cumpar e mai bine sa iau 4 sau 5?
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darthradu
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#42
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darthradu
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Pai poti sa iei si 6, in cel mai rau caz se vor aprinde mai slab sau deloc.
Pe ledurile chinezesti ar trebui sa platesti undeva pe la 1leu per wat.
Daca ai un aparat de masura vezi cati volti scoate sursa ta in gol, eventual masoara-i si aia 350ma. Daca masori, sa zicem, 14Volti poti sa pui maxim 14/3.4=4.1 leduri, adica 4. Asta presupunand ca sursa scoate fix 350ma indiferent de sarcina.
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Blue14
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 00:13:38
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#43
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Blue14
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Pe ea scrie intre 18-26 v, o sa o masor maine cand imi gasesc aparatul de masura, momentan e pierdut.
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darthradu
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#44
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darthradu
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18/3.4 = leduri minim
26/3.4 = leduri maxim
Atentie ca 3.4 ala este o tensiune maxima pe care o suporta, de obicei ,ledurile de la alb in sus (adica alb/albastru/uv) , pentru verde/galben/rosu tensiunea scade pana la 2V.
This message was edited 1 time. Last update was at 05/02/2015 00:17:01
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Blue14
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 00:17:11
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#45
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Blue14
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Am inteles, adica functioneaza doar cu 3, merg maine si imi iau, la noi in Constanta un led de 3 w e 7 lei, ofi mult da am nevoie doar de 3.
This message was edited 1 time. Last update was at 05/02/2015 00:32:08
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darthradu
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 00:23:04
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#46
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darthradu
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La noi in Romania este 2 lei http://www.okazii.ro/componente-electronice/bec-led/led-3w-20000k-cu-radiator-a165873339
Bine, astea nu mai sunt ca le-am cumparat eu pe toate, dar ai inteles ideea.
Zi ca vrei 6 leduri si scoti 30 lei din buzunar, daca e sa comenteze fraieru' dai cu spitzu la tibie, cand se apleaca ii bagi degetele in ochi si-l musti de ureche, dupa aia ii spui ca astia-s banii de alocatie si ca esti pasionat de leduri.
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Blue14
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 00:27:20
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#47
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Blue14
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 Asta e pretul de la magazin, nu am ce sa negociez!
Si Constanta e Romania!
This message was edited 1 time. Last update was at 05/02/2015 00:31:46
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Blue14
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 01:20:08
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#48
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Blue14
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Inca o intrebare si ma calmez, eu am o sursa dimabila MW la lampa de la marin, exista vreo posibilitate sa o fac dimabila pwn, ca as vrea sa am un program de iluminat automat in ultimele luni ale acvariului?
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darthradu
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 02:26:28
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#49
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darthradu
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Nu stiu ce inseamna dimabil MW  Insa stiu ca vrei pwm(pulse width modulation)
Ce lampa ai ?
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Blue14
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#50
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Blue14
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darthradu wrote:Nu stiu ce inseamna dimabil MW  Insa stiu ca vrei pwm(pulse width modulation)
Ce lampa ai ?
Mean Well, am o lampa 15led de 3w, 6 albe, 9 albastre, pe un singur canal dimabila din potentiometru.
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darthradu
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 02:35:41
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#51
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darthradu
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Pasi inspre succes:
se citeste pe sursa un model un cod un ceva
se cauta codul ala pe google
se gaseste un datasheed in care ti se explica despre ce e vorba
acolo la dimming ar trebui sa scrie cum plm se dimeaza
Dar spune-mi ce model e ca ma sacrific pana termin berea asta si caut eu pe google in locul tau.
Pana una alta daca se dimeaza cu 1-10V, da se poate face un adaptor de la PWM la 1-10V analog.
Dar, cum ti-am recomandat si mai sus, mai bine renunti la ce ai tu acum si-ti iei driverele LDD ca poate mai incolo sa vrei alte nebuneli.
This message was edited 1 time. Last update was at 05/02/2015 02:37:12
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Blue14
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#52
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Blue14
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Mean Well. ELN 60-48D.
Driverele Ldd sunt complicat de montat, daca nu as renunta la ce am acum.
Asta e http://www.meanwell.com/search/eln-60/default.htm
This message was edited 2 times. Last update was at 05/02/2015 02:40:46
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darthradu
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#53
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darthradu
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Blue14
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#54
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Blue14
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Chiar nu e complicat cu Ldd, ca si sursa de curent constant pot sa folosesc una nondimabila china (prima sursa pe care am avut-o), sau nu?, controller vad ca are colegul pyu,
Deci nu ar fi o problema.
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darthradu
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#55
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darthradu
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LDD-ul ESTE O SURSA DE CURENT CONSTANT, se alimenteaza cu o SURSA DE TENSIUNE CONSTANTA.
Curentul e ala cu amperii, tensiunea e aia cu voltii  )
De controller nu comentez nimic ca ma pui sa arunc cu noroi in concurenta
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Blue14
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#56
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Blue14
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darthradu wrote:LDD-ul ESTE O SURSA DE CURENT CONSTANT, se alimenteaza cu o SURSA DE TENSIUNE CONSTANTA.
Curentul e ala cu amperii, tensiunea e aia cu voltii  )
De controller nu comentez nimic ca ma pui sa arunc cu noroi in concurenta 
Am inteles, daca puteti sa-mi faceti dvs controllerul ar fi si mai bine, eventual daca ati putea sa imi faceti tot ansamblul de ldd-uri plus surse si controller ar fi excelent (bineanteles, contra cost)
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darthradu
![[Post New]](/forum/templates/default/images/icon_minipost_new.gif) 05/02/2015 03:00:19
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#57
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darthradu
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Eu nu fac nimic contracost, eu doar va pun la dispozitie cunostintele necesare sa va faceti singuri.
Daca vrei lampa profi contra cost apeleaza la colegul Shubi.
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darthradu
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#58
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darthradu
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Uite, promit ca sa fac un tutorial aici sa-l inteleaga toata lumea despre leduri/controller/ldd-uri
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Blue14
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#59
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Blue14
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Bine, lampa de la 0 nu mai fac in nici un caz pentru 6 luni, cat mai tin bazinul asta in functiune, ca fac upgrade la unu mai mare, deja am ajuns cu lampa asta la 650 le.
Astept tutorialul!
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Blue14
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#60
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Blue14
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O sa trec pe ldd-uri, dar cred ca e o problema, lampa mea e pe un singur canal, toate ledurile sunt lipite pe o placuta, cred ca o sa dezlipesc ledurile de pe placuta si o sa le lipesc pe placute stea, s-ar putea sa mai umblu pe la ele, sa mai bag si uv si poate sa schimb si alte leduri si sa adaug un led in plus (vreau 4 Ldd-uri a cate 4 leduri).
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