Welcome, Guest. Please login or register.

Author Topic: PSU hack for desktop A1200 anyone????  (Read 2280 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline melange

  • Full Member
  • ***
  • Join Date: Jun 2005
  • Posts: 235
    • Show all replies
Re: PSU hack for desktop A1200 anyone????
« on: March 01, 2007, 08:05:42 AM »
Every laptop PSU I have ever seen outputs in only a single voltage. For example my laptop PSU outputs at 19V 4.7A.
The A1200 requires +12v, -12v, +5v and ground.  This means you would have to build some extra ciruit to step down the initial 19V and create the three different voltages required.  (I have no idea how to design that sort of stuff, but I could probably build one from somebody else's design).  :-)
In short, it's not just a case of attaching the A1200 power connector to the Laptop PSU, theres more involved than that.
2 x A1200 Blizzard IV 030@50Mhz
1 x A3000D 030@25Mhz
1 x A2000 030@25Mhz
1 x A2000, 2 x A600
2 x A500
 

Offline melange

  • Full Member
  • ***
  • Join Date: Jun 2005
  • Posts: 235
    • Show all replies
Re: PSU hack for desktop A1200 anyone????
« Reply #1 on: March 01, 2007, 10:38:00 AM »
Yep with some adaptation that might do the trick, but it probably wouldn't be any more powerfull than the A500 Brick, which is also 60Watt!
2 x A1200 Blizzard IV 030@50Mhz
1 x A3000D 030@25Mhz
1 x A2000 030@25Mhz
1 x A2000, 2 x A600
2 x A500
 

Offline melange

  • Full Member
  • ***
  • Join Date: Jun 2005
  • Posts: 235
    • Show all replies
Re: PSU hack for desktop A1200 anyone????
« Reply #2 on: March 01, 2007, 01:55:55 PM »
I'm currently building an A1200 project.  It's PSU is an ATX.  It was just as easy if not easier than an AT.
To switch it on and off I just put a small chrome toggle switch between the green wire and earth (black wire next to the green one) on the ATX PSU's power connector.  Works fine.  :-)
2 x A1200 Blizzard IV 030@50Mhz
1 x A3000D 030@25Mhz
1 x A2000 030@25Mhz
1 x A2000, 2 x A600
2 x A500