- Joined
- Aug 30, 2008
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- 83
I just got the boards today so everything is in. I should have them shipped out within the next 1-2 days.
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Thanks I went there the other day,and it said sold out/ I will try again thanks!
So, when the laser connected to the driver, voltage drops to 4.5V ~ ? Ok, why the laser is becomes very hot, and shining very weak? Although in the beginning, when I turn on the laser, it shines brightly for about half a second and then starts to shine like a normal blue diode.
At 1.8 everything gets hot, the diode, heatsink, the driver and the battery for the massive current drain.
You haven't shown the setup. From the very little information you gave it seems that the electrical circuit is wrong and the battery is directly feeding the laserdiode instread of going thru the driver for a regulated current. It is possible you have feeding the diode with a voltage of 7.4V which killed the diode almost instantly.