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FrozenGate by Avery

Please explain this...






My guess is the reverse protection circuit on the driver poofed as you put the battery in backwards it will work as you see, but never put those cells in wrong again or you surely will fry the driver because that protection is gone now.
 
cantthinkofone said:
Problem is these are non rechargeables. I believe cr2s. I've come to the conclusion that it was the batteries protective circuit that fried. Thanks guys! Also I don't know if this means anything but mine warms up really fast. Like heat wise. Lasers fine and all. But after like a 5 minute or so use it def warmer. Never mind the heat thing. Turns out it's from me not the laser. I worry too much
Click to expand...

Don't non-rechargeable CR2's not have protection circuits?
 
TheDukeAnumber1, not really - mostly PTC and pressure-sensitive circuit breaker, that's about it.

And, yes - definitely diode. Personally, I would rather not to put diode in series of the battery circuit instead of parallel as that would be silly and a hazard. Parallel = serial is what I would prefer, low chance of magic smokes.
 
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jander6442 said:
My guess is the reverse protection circuit on the driver poofed as you put the battery in backwards it will work as you see, but never put those cells in wrong again or you surely will fry the driver because that protection is gone now.
Click to expand...
When do you think the protection got toasted? A few ms after power up? Or maybe .27349695 sec after power up and poof of smoke? See, by the theory that by placing your cell in body negative now, you will burn out the diode, it would therefore also seem that you lucked out big time! A few more MS, and by by diode. Using above premise, this seems to be an unlikely happenstance. I'd guess there's more going on. Not too sure I'd want
to that ow t!

Did you notice any burnt metal spring, or a slight to moderate power drop post incident?

I'm really glad your laser still works. Treat her with extra special care!!!! ;)
 
jander6442 said:
My guess is the reverse protection circuit on the driver poofed as you put the battery in backwards it will work as you see, but never put those cells in wrong again or you surely will fry the driver because that protection is gone now.
Click to expand...
When do you think the protection got toasted? A few ms after power up? Or maybe .27349695 sec after power up and poof of smoke? See, by the theory that by placing your cell in body negative now, you will burn out the diode, it would therefore also seem that you lucked out big time! A few more MS, and by diode.

Did you notice any burnt metal spring, or a slight to moderate power drop in light output, post incident?

I'm really glad your laser still works. Treat her with extra special care!!!! ;)
 
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Depending on the diode size. If pretty small, the Zener diode has virtually no chance of protecting the driver / laser diode, it will simply get incinerated due to the ampere rating of the battery. It may happen instantly or just take a few seconds before the diode decides to call it quits.
 
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