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Old 06-10-2008, 02:06 AM #1
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Default diode question

what should be the output voltage of a dvd burner diode at 350 ma if i dont want to fry it?(using ddl driver and 5 aa battery)


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Old 06-10-2008, 02:28 AM #2
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Default Re: diode question

It depends on what kind of diode you are using.

do you know if it is a 16x or 20x?
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Old 06-10-2008, 02:49 AM #3
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Default Re: diode question

Dr Lava posted a consolidated graph with lots of different diodes - Hemlock Mike still has the best graphs though, no offense to Lava
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Old 06-10-2008, 03:23 AM #4
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Default Re: diode question

it is a 20x open can pioneer dvr 213ls
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Old 06-10-2008, 03:26 AM #5
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Default Re: diode question

yeah, it completely depends on the diode... some lasers are more efficient than others and will put out more or less light per mA than others... many diodes will burn out and die altogether at 350mA.
here's that chart senkat mentioned: http://www.laserpointerforums.com/fo...num=1210649510
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Old 06-10-2008, 03:40 AM #6
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Default Re: diode question

what i really want to know if that at a specific ma output, will voltage make a difference?
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Old 06-10-2008, 03:45 AM #7
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Default Re: diode question

red laser diodes take about 3v.

when you're using a fixed-current driver, the diode will take whatever voltage it needs, the driver will keep the current regulated to what you set it to... the voltage will just sort itself out.

With my short open can running at 350mA, it had 3.1v across it.
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Old 06-10-2008, 04:11 AM #8
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Default Re: diode question

Seriously, do some reading. This question has been asked and answered a million times. Voltage doesn't matter, think CURRENT.
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