- Joined
- Nov 2, 2015
- Messages
- 5
- Points
- 3
Hi guys,
I've burned out 2 BDR-209 laser modules that I bought from DTR's laser shop and I'm trying to figure out why.
Since the driver doesn't seem to have ability to use a TTL signal, I'm just supplying a constant +8.5V to the driver and pulsing the ground to achieve TTL. Is it possible that this is killing my module? It seems to last for about 7 or 8 hours and then goes dead. This has happened twice.
I have it cooled nicely by a fan and in a nice big heatskink. It's not getting hot by any means. Like I said, I'm using +8.5V to the driver. Current is set at 550mA.
See pics for some extra reference.
Thank you
I've burned out 2 BDR-209 laser modules that I bought from DTR's laser shop and I'm trying to figure out why.
Since the driver doesn't seem to have ability to use a TTL signal, I'm just supplying a constant +8.5V to the driver and pulsing the ground to achieve TTL. Is it possible that this is killing my module? It seems to last for about 7 or 8 hours and then goes dead. This has happened twice.
I have it cooled nicely by a fan and in a nice big heatskink. It's not getting hot by any means. Like I said, I'm using +8.5V to the driver. Current is set at 550mA.
See pics for some extra reference.
Thank you