n64 questions

toby dawg · Post by **toby dawg** » Thu Apr 13, 2006 6:38 pm

ok i dont understand anything that has to do with the dc-dc converter so to power an n64 could i have 3 1.2v batteries =3.6v for the cpu and add a separate 7.2 volts for the rest of the system?

could i just use a few resistors to get 3.3 volts? fron the 7.2

joevennix · Post by **joevennix** » Thu Apr 13, 2006 6:57 pm

Er, no you can't use resistors as a power supply, they're too unreliable. Use a DC/DC converter. Here's a diagram from Sky's site:

You can get the DC/DC converter free from TI, don't overuse it this though. Check his site for more details, since it explains this pretty well. Go to diagrams, then scroll to the bottom.

toby dawg · Post by **toby dawg** » Thu Apr 13, 2006 7:02 pm

.......you lost me.... i was wondering if i could just have a separate battery pack with 3.3 volts comming off of it??

Post by **Skyone** » Thu Apr 13, 2006 7:02 pm

HOTLINKER!

Haha, it's ok, I have unmetered bandwidth.

But ya: http://skytroniks.com/index.php?mode=diagrams

Check the 3rd picture down, and read underneath it.

EDIT: You can have another 3 volt battery, but why bother when you can use the free samples from TI?

joevennix · Post by **joevennix** » Thu Apr 13, 2006 7:03 pm

Sure, you could do that. It's a bit redundant and space wasting, but you can do that. Make sure it has exactly 3.3V.

Post by **Skyone** » Thu Apr 13, 2006 7:04 pm

Joe, no batteries come in 3.3v, so the closest is 3v... So the answer is probably no.

toby dawg · Post by **toby dawg** » Thu Apr 13, 2006 7:06 pm

im goona atleast try!... is 3.6 really too much?

how about 3.6 and a resistor? that DC-DC stuff is too technical........

....i suck at anything harder than a regulator

Post by **Skyone** » Thu Apr 13, 2006 7:07 pm

WAAAAY too much! It should be 3.1v-3.3v.

toby dawg · Post by **toby dawg** » Thu Apr 13, 2006 7:09 pm

but 3.6 plus resistor??

Post by **Skyone** » Thu Apr 13, 2006 7:11 pm

Still, no... the battery can become overcharged and undercharged, you'd need a voltage regulator. (Once again, check my site's diagrams...)

toby dawg · Post by **toby dawg** » Thu Apr 13, 2006 7:14 pm

OK thanks for the quick answers guys

.....ill probably end up doing a cube!

daguuy · Post by **daguuy** » Thu Apr 13, 2006 7:26 pm

just incase you change your mind, this is an easy to use dc-dc convertor diagram.

Post by **Triton** » Thu Apr 13, 2006 8:02 pm

dude, i have personally used 3 AAs to power the 3.3v line with no problems aside form poor battery life BE WARNED overvolting by more than 3.6v will likely KILL your n64

toby dawg · Post by **toby dawg** » Thu Apr 13, 2006 9:18 pm

its not that i can't follow the diagrams its that i dont want to go through the hassle of finding every thing i need and put it together

Post by **Skyone** » Thu Apr 13, 2006 9:21 pm

Ah, I see. All it is, is a free sample from Texas Instruments, a 100uF, and a 2k resistor.