How important is giving 6V to a laser device that uses 5V?

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Rockworthy

Oct 20, 2011
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Hello guys. Another "new guy" question: I have this laser projector that I bought and I want to power it from big, 6V batteries, instead of from the AC adapter that it came with. The problem is that the adapter provides 5V DC. How much of a risk of damaging this thing is there if I just run it with the 6V batteries?
 

davelectronic

Dec 13, 2010
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Laser psu requirments

I think if its a laser pointer device or similar, then not critical, but not critical to me would be no more than 0.5 of a volt, 6 volts i think is probably a bit much, especially if 5 volts is the working voltage. If it was an optical drive in a digital circuit more critical i would think. You really can drop 0.7 of a volt with 1 single silicone diode on the + volts lead from the battery forward biased. That would be exceptable. I use diodes all the time to drop or increase voltage.
Dave.
 

davenn

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Sep 5, 2009
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Hello guys. Another "new guy" question: I have this laser projector that I bought and I want to power it from big, 6V batteries, instead of from the AC adapter that it came with. The problem is that the adapter provides 5V DC. How much of a risk of damaging this thing is there if I just run it with the 6V batteries?

hey mate dont start a new thread on the same subject :) it confuses people trying to replay and help you if they have to look in multiple places

Keep it all together in your other thread

cheers
Dave
 
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