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New laser diode driver design.
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Last edited by The_Doctor; 04-20-2010 at 11:23.
Senior Member
well that's a nice design! I bet one could even add a buffer transistor to the 317 and peak to tens of amps (industrial darlington? it has been tested by a friend up to 20A with the classic shunt feedback circuit, the only difficulty is to find a suitable shunt)
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Nice one! I'll try to make a rough prototype tomorrow. -Assuming I can find the right IC's
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Last edited by The_Doctor; 04-20-2010 at 11:23.
Senior Member
the buffer transistor should work like a pinch as it makes a darlington pair with the output transistor of the 317, if I'm correct
I'll try to make a prototype out of LM358 opamps to test at none to low frequency modulation
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Last edited by The_Doctor; 04-20-2010 at 11:24.
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if needed, I also have some 200Mhz analog devices video opamps with +/- 15Vdc supply rails
I'll try to have a prototype laid out and experiment with different opamps (those AD video amps should behave nicely with their ultra low slew rate)
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Last edited by The_Doctor; 04-20-2010 at 11:24.
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I'm short on time today unfortunately... Still messing with threading my breadboard
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Last edited by The_Doctor; 04-20-2010 at 11:24.
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