norbyx
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- Joined
- Apr 18, 2013
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I just took apart some lasers that were given to me. They were green lasers but didn't work anymore (due to the lenses falling off...).
Anyhow the drivers are good. They are linear drivers, but in testing them I found out one strange behavior.
I took off the diode and connected the DMM to the positive and negative out for the diode with no dummy load. I connected the driver to the PS and obviously the Voltage out of the PS was the same that I had on the diode.
But as I increased the voltage the current also increased, for example at 4.2 Volts I had about 220mA. and at 3.6 I had about 180mA, or something like that (cant remember the exact numbers at the moment).
Is this normal due to the fact that there is no load at the end of the driver?
Also for what diodes could this be used (I guess that a red and IR would be good)?
Anyhow the drivers are good. They are linear drivers, but in testing them I found out one strange behavior.
I took off the diode and connected the DMM to the positive and negative out for the diode with no dummy load. I connected the driver to the PS and obviously the Voltage out of the PS was the same that I had on the diode.
But as I increased the voltage the current also increased, for example at 4.2 Volts I had about 220mA. and at 3.6 I had about 180mA, or something like that (cant remember the exact numbers at the moment).
Is this normal due to the fact that there is no load at the end of the driver?
Also for what diodes could this be used (I guess that a red and IR would be good)?