The ATX Benchtop Power Supply Adapter is a very useful board for recycling / repurposing ATX computer power supplies as general purpose electronics workbench or lab power supplies. It's a usual problem that makers need a good power supply with 3.3V, 5V and 12V at reasonably high currents available, but the traditional lab power supplies cost hundreds of dollars for a good quality new one. Using this board means you can use an ATX power supply without having to hack the insides, which could lead to dangerous implementations where the binding posts are very close to mains (or line) voltages on the primary side.

Features

• Soft Switching on/off control circuit
• Bi-color LED for standby / on indication
• Yellow LED for fault indication
• 19mm-spaced Binding Post pairs for each voltage rail with ground (5V standby, 3.3V, 5V, -12V, +12V)
• Alligator clip plated slots for each ground and voltage rail
• 2oz copper for heavy current capabilities

This board is available as a complete kit through the main website (see external links) or from ABRA Electronics in Canada (ABRA will sell and ship globally).

This project was previously designed in Altium Designer (CircuitMaker did not exist then!) and was published as an article in Elektor Magazine, June 2013.

Licensed as CC / BY-NC-ND (Attribution, Non-Commercial, No-Derivatives).