rkcstr
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Something I have been developing for a while now, a small driver able to drive high powered laser diodes and fit fully within the Aixiz/DX module. I wanted to post it up here to see what people thought and to let the people who may have already known about it to get more information.
The drivers are available for purchase, see this thread for details.
The specifications:
For those who are good with a soldering iron/hot air rework, I can offer an SMD resistor 'kit' of all the resistors you would need to change between the offered voltages as well.
I intend to have these for sale in the near future. For now, I am waiting on an open can diode for me to test with as well as someone else's test of the driver.
Let me know if you have any questions or suggestions.
Update (3/25/08):
I received my open can yesterday and have been having plenty of fun with it ;D I was able to run it for over 3 minutes at 400ma just within the DX/Aixiz module with no problems. The case did get rather warm, but never too hot to hold, it probably could have kept going. I won't recommend running it for that long, but it at least shows it's possible.
Pics:
The drivers are available for purchase, see this thread for details.
The specifications:
- A micro-sized driver designed for high power output but able to fit the smallest of applications, including the Aixiz laser module.
- Based on the MC33269 low drop-out regulator.
- Solders directly to the laser diode with standard pin-out (both PS3 blu-ray diodes and standard 3 pin 5.6mm red diodes)
- Capable of driving a red diode with an input voltage of ~5.25V, a violet (blu-ray) diode with ~7-7.25V, or generally >2.25V more than the diode's voltage, compared to >3V necessary for LM317-based drivers.
- Output current is preset in one of the following values: 38ma (for blu-ray), 50, 100, 150, 200, 250, 300, 350 or 400ma.
- Due to the small size of the driver, higher output drivers will have shorter duty cycles (on-time) than with lower output. Duty cycle will vary, but with 6V input driving a 3V load @400ma, the temperature peaked at around 85C within a 2 min time period, in one test performed. Higher input voltage will increase the temperature and decrease the duty cycle.
For those who are good with a soldering iron/hot air rework, I can offer an SMD resistor 'kit' of all the resistors you would need to change between the offered voltages as well.
I intend to have these for sale in the near future. For now, I am waiting on an open can diode for me to test with as well as someone else's test of the driver.
Let me know if you have any questions or suggestions.
Update (3/25/08):
I received my open can yesterday and have been having plenty of fun with it ;D I was able to run it for over 3 minutes at 400ma just within the DX/Aixiz module with no problems. The case did get rather warm, but never too hot to hold, it probably could have kept going. I won't recommend running it for that long, but it at least shows it's possible.
Pics: