Slim PS2 voltage question
#1
07-19-2005, 09:06 PM
Join Date: Jun 2005
Location: Norristown, PA
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Slim PS2 voltage question
#2
07-19-2005, 10:40 PM
Registered User
Join Date: May 2005
Location: Burbank, CA
Posts: 710
Likes: 0
Received 0 Likes
on
0 Posts
This may be a stupid response, but doesnt the PS2 have an AC input? So you would be using a DC-AC inverter right? If so, the PS2 has its own voltage regulator built in to handle everything once you get it AC.
If it does in fact have an 8.5V DC input, then it is best to use a DC-DC from 12 (13.5 usually) to 8.5V. A simple resistor divider would work nicely, and can be built for pennies.
For instance (This doesnt show right... the line going down 8.5V to PS2 should be between the 150 Ohm and 400 Ohm resistors.)
13.5V --------150 Ohm------------400 Ohm-----------Ground
|
|
|
8.5V
|
|
PS2
The other thing to keep in mind is typically the 12V in a car is 13.5V but to be sure measure your power line to see. You may also consider an inline fuse that limits any more than the maximum current input to the PS2.
If it does in fact have an 8.5V DC input, then it is best to use a DC-DC from 12 (13.5 usually) to 8.5V. A simple resistor divider would work nicely, and can be built for pennies.
For instance (This doesnt show right... the line going down 8.5V to PS2 should be between the 150 Ohm and 400 Ohm resistors.)
13.5V --------150 Ohm------------400 Ohm-----------Ground
|
|
|
8.5V
|
|
PS2
The other thing to keep in mind is typically the 12V in a car is 13.5V but to be sure measure your power line to see. You may also consider an inline fuse that limits any more than the maximum current input to the PS2.
Last edited by Inno; 07-19-2005 at 10:52 PM.
#3
07-20-2005, 07:18 AM
Join Date: Jun 2005
Location: Norristown, PA
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Inno, thanks so much for the help. I have been reading in the threads that DC-AC converters are not that efficient. Would you agree?
My understanding is that the slim PS2 accepts the AC and converts it to DC (like a laptop, the slim PS2 has a power cord with the box in the middle of it). Rather than have a converter when the slim PS2 converts it back, I figured you can get a DC-DC power inverter.
My understanding is that the slim PS2 accepts the AC and converts it to DC (like a laptop, the slim PS2 has a power cord with the box in the middle of it). Rather than have a converter when the slim PS2 converts it back, I figured you can get a DC-DC power inverter.
Last edited by dmac7; 07-20-2005 at 09:09 AM.
#4
07-20-2005, 12:50 PM
I responded to your PM but am copying here in case others are interested in doing something similar. A DC-DC converter is much more efficient than AC-DC conversion.
Using a resistor network will likely work ok but is not a great idea because the voltage from the car can fluctuate from 11V to 14V depending on the state (running, ignition, other loads, etc).
Anyway here is my response:
It's difficult to tell what the tolerance is. If you have a good volt meter, try testing what the voltage is from the adapter that came with it. Usually those fluctuate quite a bit - it might give you an idea of what the PS2 power circuitry can tolerate.
I think you'll have a hard time finding an exact 8.5V DC DC power supply. You could use a voltage regulator IC that is adjustable such as this part. You can put it together using a "breadboard" and "quick disconnect" connectors from Radio Shack and avoid soldering if you want to.
Even if you don't have electronics experience I would think that you could put this together. Follow a guide such as at this site.
Good luck!
Using a resistor network will likely work ok but is not a great idea because the voltage from the car can fluctuate from 11V to 14V depending on the state (running, ignition, other loads, etc).
Anyway here is my response:
Originally Posted by rcdash
Originally Posted by dmac7
If the slim PS2 takes a 8.5 DC voltage do I need a DC-DC converter that produces the exact 8.5 DC voltage or can I use one that produces up to 10 or 12? I'm not too savvy with the power issues.
It's difficult to tell what the tolerance is. If you have a good volt meter, try testing what the voltage is from the adapter that came with it. Usually those fluctuate quite a bit - it might give you an idea of what the PS2 power circuitry can tolerate.
I think you'll have a hard time finding an exact 8.5V DC DC power supply. You could use a voltage regulator IC that is adjustable such as this part. You can put it together using a "breadboard" and "quick disconnect" connectors from Radio Shack and avoid soldering if you want to.
Even if you don't have electronics experience I would think that you could put this together. Follow a guide such as at this site.
Good luck!
#5
07-20-2005, 12:54 PM
I should add that the voltage regulation using the part I linked to above works by dissipating the excess voltage as HEAT - so you must attach it (screw it) to a heatsink like that used on a 486 or pentium processor. You can pick up one of those at Radio Shack as well. And you might want to throw a low amp fuse inline with the power lead just in case you muck things up!
Thread
Thread Starter
Forum
Replies
Last Post
