PSone Power Supply

kayard · Post by **kayard** » Sun Mar 05, 2006 4:39 pm

On the PSone the schematice state it takes 7.5V to power up, but can you add a little more than this say 8V or 8.5V without frying it? If not then how woudl you regulate Voltage to gety 7.5 Volts if you weren't using batteries?

Steve

Lycurgus · Post by **Lycurgus** » Sun Mar 05, 2006 5:05 pm

I believe the screen can take 8volts fine. When you start getting over 9 is when you should be worrying. So you should be alright with 8 to 8.5v

Klefmung · Post by **Klefmung** » Sun Mar 05, 2006 6:52 pm

How would I regulate my 9.6 Ni-Mh to fit it, then?

Harshboy · Post by **Harshboy** » Sun Mar 05, 2006 7:01 pm

Klefmung · Post by **Klefmung** » Sun Mar 05, 2006 7:06 pm

5 volts would power it? That is 2.5 volts off. o_O

daguuy · Post by **daguuy** » Sun Mar 05, 2006 7:17 pm

7808 makes 8v. you need 7.2v-9v to power it. get an LDO or switching regulator

Klefmung · Post by **Klefmung** » Sun Mar 05, 2006 7:46 pm

where mayest I attain such a regulator?

tom61 · Post by **tom61** » Sun Mar 05, 2006 9:15 pm

Klefmung wrote:where mayest I attain such a regulator?

Radio Shack.

Kyosho · Post by **Kyosho** » Mon Mar 06, 2006 1:01 pm

tom61 wrote:
Klefmung wrote:where mayest I attain such a regulator?
Radio Shack.

Nope. At least, not the one I went to.

Klefmung · Post by **Klefmung** » Wed Mar 08, 2006 3:28 pm

radio shack has like, two regulators. >_< Neither my specified regulator

sc1103 · Post by **sc1103** » Wed Mar 08, 2006 6:34 pm

Mouser should have it if you search for the right item. They have no minimum orders, so they work out well when you can't find a certain part at Radio Shack

G-force · Post by **G-force** » Wed Mar 08, 2006 7:12 pm

Why do you need it to run on 8.5V? Just wondering since a 7.2V battery would work fine. It should be able to run directly off 8.5V with no problem. If it's too much, there is a fuse on the board so you get a second chance, but I very highly doubt that 1 extra volt over the normal is going to blow it.

BTW, the PSone uses a 7805 (5V regulator) so you really only need 5V to power it. The 7.5V power supply powers the 5V regulator. In theory you could just bypass the 7805 and run the PSone directly off 4 rechargable AA's (4.8V). This could be really cool if you have a screen that runs off 4.8V (like an LED modded hip gear screen).