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I'm building a RetroPi Box from an old Playstation 2, and I'd love to recycle as much of the PS2 components as possible.

My PS2 (first generation model) has a power switch for its 250V built-in power supply. Since hooking this up to the Pi would fry it, I thought I'd simply plug a stripped USB charger in between the two.

My train of thought was that since European sockets also supply around 220-240V, the usb charger parts would take care of the Volt conversion for me.

Is that right? If not, do I require similar components as this answer suggests?

The raspberry pi requires around 4-5V to run properly with USB devices attached.

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  • \$\begingroup\$ What is the output voltage of the ps2 power supply - you state that it will fry the Pi but you won't be using the input voltage.... \$\endgroup\$ – Solar Mike Jul 9 '17 at 7:53
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    \$\begingroup\$ Using the output of the PS2 power supply could be problematic. The OP needs to specify the current requirement of his 'RetroPi Box'. I haven't seen the internal power supply of a PS2 but it is presumably built down to a price. It may not be able to source the additional current the OP's project needs. In that case, his plan to use a stripped USB charger, if done carefully, makes a bit of sense. Again, assuming he has verified that it can source the required current. \$\endgroup\$ – replete Jul 9 '17 at 8:00
  • \$\begingroup\$ I took apart what I thought was the power supply - turns out it was just a switch that breaks the power. So, essentially I'm using power straight from the socket. That should mean I can hook up the stripper USB charger without issue, right? Since that also works with the current from my wall's socket ? \$\endgroup\$ – nlsdfnbch Jul 9 '17 at 8:29
  • \$\begingroup\$ Oh, and the box requires just the same as a raspberry pi. I'm hooking everything up via the Pi - 'everything' being forr game pads and a usb stick. \$\endgroup\$ – nlsdfnbch Jul 9 '17 at 8:33
  • \$\begingroup\$ You still need to find the current draw. Look up the draw of the Raspberry Pi board with no peripherals connected, then add the current drawn by whatever you connect to it. This total needs to be below the maximum rated current of your stripped USB charger. \$\endgroup\$ – replete Jul 9 '17 at 8:48

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