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Author Topic: Question about electronics - Voltage regulator ratings  (Read 802 times)
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Artemisia
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« on: July 02, 2012, 02:43:52 AM »

Hi all.
I did a brief search of the forums here to find detailed info on the internals of TW batteries without success.
I'm hoping I've found an alternative use for the tiny regulator inside an expired or discarded battery...

I have a couple of regular Tornado batteries that came with my first kit & they still work ok, but I thought I'd replace them since they are pretty battered now having been dropped, scratched & generally abused.. ahem. Rather than just toss them in the bin or in a drawer in the garage, I was wondering if I could put parts of them to further good use. 

Let me explain: A while ago I started a project to build a high power laser pointer for my teenage son who is a huge science fan & loves lasers. The consensus among the laser forum people is to use a couple of micro regulators in parallel to drive the insanely bright 2W laser diode I intended to use. Long story short, the regulators are very expensive (~£20 EACH + postage!! gasp!) & very awkward to get hold of. It occurred to me that the regulator in a Tornado unit (or similar) is rated for some serious power output & is of similar size. It looks like it might even be a more robust regulator capable of driving even more power?
The name of the game is compactness plus efficiency & it would appear that a T battery regulator has very efficient thermal characteristics for such a tiny package. They don't seem to even get warm in normal e-cig use compared to the alternative which definitely needs sinking. They also have the cool function of auto-off after ~10 seconds. This is a bonus with this very expensive laser diode which will cook up & burn out quickly if it's run continuously.

Do any of the electrically-minded folks here have any accurate or close approximations for max. output power/voltage characteristics. A data sheet would be awesome, but I can only hope on that.  Cool
Also... what's the biggest, most narly battery that TW sell? Is that the 1000mAh unit, or do they go bigger? lol That option would still be cheaper & come with a monster battery!

Thanking you in advance Cheesy
A
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canniscam
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« Reply #1 on: July 02, 2012, 04:21:40 AM »

Caveat Emptor:  This is probably, most definitely, an out of warranty use for these batteries ...

You might look into a 1000mAh passthrough battery that way you can utilize the charging capabilities of any USB port for your project.   As well as laze while drawing power from the USB port to keep the battery constant.

I couldn't provide you with any specs on the regulators in the ego's without dismantling one and all of mine still work just fine so not much luck there.

Casey
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canniscam
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« Reply #2 on: July 02, 2012, 04:22:39 AM »

Although this does make me want to build a laser diode atomizer..   Lips sealed

Casey
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canniscam
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« Reply #3 on: July 02, 2012, 04:32:15 AM »

On a side note and leading up to a mad scientist moment for me ..

I've found a good price on some 2w 808nm diodes  (Near IR)

http://www.amazon.com/POWER-Burning-Cutting-Laser-Diode/dp/B0036IRETS

2 Diodes for $25.00 ..

-Casey
« Last Edit: July 02, 2012, 04:37:34 AM by canniscam » Logged



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