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Unread 19-09-2007, 23:12
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pic: Vex power from FRC battery

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Unread 19-09-2007, 23:13
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Re: pic: Vex power from FRC battery

mad props. i will create this device immediately
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Unread 19-09-2007, 23:49
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Re: pic: Vex power from FRC battery

Where do I get one of those power converters!!!!!
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Unread 19-09-2007, 23:53
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Re: pic: Vex power from FRC battery

There could be quite the market if someone were to sell those...

I know I'd buy one.
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Unread 20-09-2007, 00:31
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Re: pic: Vex power from FRC battery

LM7808 is a very old part design, it's just a higher voltage version of the extremely common LM7805 voltage regulator that is used in half of all electronic devices ever made! I got a pair on ebay for a couple bucks (including shipping), you should be able to get one from any electronics parts distributor such as digi-key.

The heat sink doesn't need to be anything more than a piece of flat aluminum about an inch square...if that....

(edit: digikey has a couple thousand of the LM7808 devices in stock)

Last edited by MrForbes : 20-09-2007 at 01:10.
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Unread 21-09-2007, 11:46
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Re: pic: Vex power from FRC battery

Have you had any problems with noise comming from the victors since your using the same battery for both?

-q
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Unread 21-09-2007, 12:18
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Re: pic: Vex power from FRC battery

Haven't noticed any, but it might be a good idea to add a big capacitor after the voltage regulator, eh?
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Unread 30-09-2007, 22:06
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Re: pic: Vex power from FRC battery

If i were you i would keep it on the DL and get a patent before you all of a sudden start seeing them with a Radio Shack logo on them.
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Unread 01-10-2007, 11:35
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Re: pic: Vex power from FRC battery

Quote:
Originally Posted by robostangs548 View Post
If i were you i would keep it on the DL and get a patent before you all of a sudden start seeing them with a Radio Shack logo on them.
Can you patent a voltage regulator that already has a patent?

Wait... RECURSIVE PATENTING!!!! MUAHAHAHAH!

-q
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