reloader45
Active member
- Joined
- Mar 17, 2019
- Messages
- 172
- Points
- 28
Hello,
with the help of my oscilloscope, I increased the current off the 488 nm diode to 220 mA. That gave me an output of 102 mW. After going to to 250 , the driver input current switched from 400 mA to 550 mA with the same output of 250 mA. Because of this strange behaviour I decided to go back to 220 mA output of the driver.
After that, i tested the output of a cheap chinese driver with a M140 Diode at 1.500 mA. The oscilloscope showed an average current of 1500 mA with a lot of spikes between 1000 mA and 2000 mA.
I think this high spikes will kill the diode soon, so I will exchange the driver to a 1500 x-wossee driver.
Attached you will find two photos of the diode without current and with approx. 170 mA current.
best regards
Edgar
with the help of my oscilloscope, I increased the current off the 488 nm diode to 220 mA. That gave me an output of 102 mW. After going to to 250 , the driver input current switched from 400 mA to 550 mA with the same output of 250 mA. Because of this strange behaviour I decided to go back to 220 mA output of the driver.
After that, i tested the output of a cheap chinese driver with a M140 Diode at 1.500 mA. The oscilloscope showed an average current of 1500 mA with a lot of spikes between 1000 mA and 2000 mA.
I think this high spikes will kill the diode soon, so I will exchange the driver to a 1500 x-wossee driver.
Attached you will find two photos of the diode without current and with approx. 170 mA current.
best regards
Edgar