ATX-PSU

by nicolasnoble.
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2 layer board of 2.95x2.02 inches (74.93x51.31 mm).
Shared on April 23rd, 2016 20:56.

Small ATX PSU adapter, mainly for 12V loads, such as 3D printers.

DigiKey cart for 3 boards: http://www.digikey.com/short/3jh47j

RLoad need to be a couple of ~5W+, 20 ohm resistors. They’ll dissipate some heat. It’s needed for some ATX PSUs to be stable.

The LEDs will be powered on with 5v.

The power connectors are https://www.sparkfun.com/products/8432

The power on switch in the middle is something along the lines of http://www.amazon.com/dp/B00BT9FVTQ - The switching on portion needs to be between ground and PwrON. Basically, if using that switch, gnd=C and led-, pwron=NO (the center one), and 12v=led+.

Everything else is pretty standard and straightforward.

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