19-09-2007 23:13

Tytus Gerrish

Re: pic: Vex power from FRC battery

mad props. i will create this device immediately

19-09-2007 23:49

falconmaster

Re: pic: Vex power from FRC battery

Where do I get one of those power converters!!!!!

19-09-2007 23:53

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.

20-09-2007 00:31

MrForbes

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)

21-09-2007 11:46

Qbranch

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

21-09-2007 12:18

MrForbes

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?

30-09-2007 22:06

robostangs548

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.

01-10-2007 11:35

Qbranch

Re: pic: Vex power from FRC battery

Quote:

Originally Posted by robostangs548 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.