Need help with power supply wiring

Neo_Weapon · Post by **Neo_Weapon** » Wed Mar 23, 2005 4:31 pm

I finally got my hip gear screen to run off of 4 AA's totaling 6 volts. Now i was wondering if i can run both the radica and hip gear screen with 6 volts by wiring it like this.

Will that work? Do i have to add any regulators or anything else to it?

G-force · Post by **G-force** » Wed Mar 23, 2005 4:43 pm

Edit: Nevermind, the pic loaded after a while.

That diagram should work as long as the 6V goes through a 5V regulator. Other wise it would fry it.

Neo_Weapon · Post by **Neo_Weapon** » Wed Mar 23, 2005 4:46 pm

No, hmm.

Neo_Weapon · Post by **Neo_Weapon** » Wed Mar 23, 2005 4:47 pm

It's just a drawing i made in paint in .jpg format.

Neo_Weapon · Post by **Neo_Weapon** » Wed Mar 23, 2005 4:50 pm

I see, so the batteries should go to the 5 volt regulator and then into the switch?

Post by **gannon** » Wed Mar 23, 2005 5:00 pm

The screen and radica need to be wired in parallel, not series....

G-force · Post by **G-force** » Wed Mar 23, 2005 5:04 pm

Ooohh, I missed that.

I just kinda glanced at it, I guess.

Neo_Weapon · Post by **Neo_Weapon** » Wed Mar 23, 2005 5:16 pm

so how's that now?

G-force · Post by **G-force** » Wed Mar 23, 2005 5:48 pm

That's good, except that both - and + go into the regulator.

kalimot · Post by **kalimot** » Thu Mar 24, 2005 2:26 am

Im in this stage of my project too!!! couple of questions: what is a DPDT switch? would it make a difference if i use a 9V battery (to save some space)? thanks!!!

G-force · Post by **G-force** » Thu Mar 24, 2005 9:08 am

You mean a normal 9V battery? That would suck

It wouldn't power it long enough.

Neo_Weapon · Post by **Neo_Weapon** » Thu Mar 24, 2005 12:43 pm

DPDT switch allows you to power two different components but not at the same time. It can also be wired in a way to either power one component or switch to charge the batteries. You can get two DPDT switches for around 3 bucks at radio shack.

kalimot · Post by **kalimot** » Fri Mar 25, 2005 7:09 pm

how much difference in battery life if i use AAA's instead of AA's? thanks!

Post by **Sparkfist** » Fri Mar 25, 2005 7:21 pm

I'm guessing here but most likely about 1/3 less power. Thats not important, what you need to do is sping for some rechargable Ni-MH atlest 2100 capacity. These will give you a run of atleast 3 hours, and you'll save money in the long run.

kalimot · Post by **kalimot** » Sat Mar 26, 2005 2:15 am

that sounds cool! the reason for using AAA's is just to save some more space.

Another question though, how do you rewire the radica to bypass the light and switch board? there are 4 wires that go from the main board to the switch board and i couldnt figure out how to bypass it and remove it altogether (i'll be powering up from my battery enclosure). any help is appreciated, thanks!