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I agree completely and getting up to 3A is a great option since most of the drivers we have are struggling to get much past 2A right now and we have laser diodes that are capable of more than 2A input now.
I do notice that most of these drivers seem to only go to 5.5v which could be a problem...
Very interesting read, thanks!
I did some looking and these are not inexpensive.
**broken link removed**
Don't get me wrong, they look very incredible but I know many of the designs we are coming up with are coming in at under $10 per driver and some as low as $5 per driver.
Some of these...
I figured as much, I guess it is time to do some reading.
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Any tips on how to build a circuit that would do this? I'm assuming that just popping an op amp in line with the output isn't gonna do it.
Really dumb question, could you use a transformer to multiply voltage x3?
I have a laser power meter that currently outputs voltage in mV but it is (by the design) off by a factor of 3.
For example, if I have a 3 watt laser, it is outputting 1 volt. Or if I have a 600mW laser, it is outputting 200mV.
I use a voltmeter to measure the output and multiply by three in...
I understand what you are saying. I am making the mistake of assuming this is a hobbyist level project. If you are making something for mass market then you will need to run the diode at a manufacturer rated level.
It would be more helpful if we knew what the OP was using the diode for in the...
The laser pointer forum I mentioned above has done a great deal of testing and there are some pretty good basic reference points for many of the more common diodes. It is fairly rare to be using diodes that have a built in monitor photodiode at those current levels.
Diodes commonly driven at...
This may help, there are quite a few constant current laser drivers here. Many are capable of 500mA and greater, several open source drivers as well. Boost and buck designs...
https://laserpointerforums.com/f67/
And...
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