Old 07-28-2014, 09:00 PM #17
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Default Re: 2W laser big time problem

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Originally Posted by Shobos View Post
That driver is boost converter, I measured it and driver did put out 5.5 volts at output
If you connected it directly to a DMM there is a good chance you have damaged it.

You need a test load to figure out what you have and if it does still work to set it to the proper current.
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Last edited by DTR; 07-28-2014 at 09:01 PM.
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Old 07-28-2014, 09:08 PM #18
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Default Re: 2W laser big time problem

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No you need a test load. No better option. You can build one pretty cheap or buy a premade one. Not having a solid secure connection between your diode and driver can lead to diode death like putting a DMM in there.
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I think the driver is fckin doomed, Now without filtering cap it starts as previosuly but after few secs starts laser starts to flicker and diode dimms very fast. I guess diode is fine but driver is doomed
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Old 07-28-2014, 09:12 PM #19
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Default Re: 2W laser big time problem

If you don't want to deal with setting up your driver grab a driver like a preset X-drive. If you do get an X-drive ditch the filtering cap as I am not sure what that is doing to it and a proper laser driver will not need it.
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Old 07-28-2014, 09:16 PM #20
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Default Re: 2W laser big time problem

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Originally Posted by DTR View Post
If you don't want to deal with setting up your driver grab a driver like a preset X-drive. If you do get an X-drive ditch the filtering cap as I am not sure what that is doing to it and a proper laser driver will not need it.
At higher than 1,30 amps the diode dimms after 3 secs, I guess this driver is faulty. Anyway, thanks for HUGE help DTR, You always help everybody haha ! Have a nice day
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Old 07-28-2014, 09:28 PM #21
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Default Re: 2W laser big time problem

Quote:
Originally Posted by DTR View Post
If you connected it directly to a DMM there is a good chance you have damaged it.

You need a test load to figure out what you have and if it does still work to set it to the proper current.
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I turned on driver without any load and measured just the volts at output, without any laser diode/
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