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I get why you all got angry on me , i tried to search all topics before but i didnt get answer and thats ehy i posted new topic , sorry if something did wrong , now i have built driver amd everysthing i connected my dvd laser , the problem is that laser burns , but it is not inough , i have done...

I know , i solved thet problem , but i bought new lm317 and other components and im going to buld new driver , if anybody can help wth shematic circuit for dvd laser driver i would be glad .

Anyone please help with driver circuit )) im sitting with soldering iron in my hand ))

Lowest mark was 13.1 and the upper 115 , but when i add voltage it is not stable, goes from 95-115 so, so i have bought today new components , lm317, diod , cap and res , i have textolite too, so i want to make new pcb for new driver , so please if you can give me shematic picture of good driver...

I connected 4 diodes insteAd of 10 as diachi advised , and now when i put my voltmeter in dc 200m mode it shows 59.1 on 1ohm resistor

Oh )))))) dont lough at me , i understood now what stupid thing i did )))

Yes ,i did ot by imos diagram , have i done something wrong ?

Here is what i did

I built test load with 10 1n4002 diodes but i cannot measure current , dont understand why, i think its my viltmeters foult .its very cheap one , when i set it in DCA and then on 10 A mode shows nothing and on 200m mode shows 0.02. Dont know ehat to di(

What diodes can i use to build this test load circuit ?

That day i leded my laser , killed ) today i got new lasersfrom dvd but until i connected them to my created driver i tested out voltage on driver and it shows 12 volt on out pins , it is connected on dc 12 v 5a . Seems like i killed lm317? How much must be viltage on out pins ? Thank you . I...

thank you for your answer , it seems on picture that this laser point spot is big ) but it isnot ) i think maybe its problem with my build ? If ill take laser of that body must it burn something witjout lens ? Or please tell me what to do)

Hello people , i got dvd rw laser and built laser driver , laser works and shines very bright but doesnt burn anything , its from lg dvd , power supply 12v 5 amo driver . Im using my own build bosy for laser , from dvd lens . Anyone can help?