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Brainless & Disposable Bench Power Supply

Build a bench power supply with as little brain power needed

ethan-waldoEthan Waldo
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Build a variable power supply as cheaply as possible using an ATX power supply and off the shelf step-up/step-down transformers and an ATX breakout board. Boards are affixed to ATX PSU metal casing via motherboard standoffs after drilling holes.
  • 1 × http://www.amazon.com/DROK-Numerical-Switching-Adjustable-Stabilizers/dp/B00BYTEHQO DC-DC Buck Converter Step-Down Power Module
  • 1 × http://www.amazon.com/DROK-Converter-Transformer-Motorcycle-Automotive/dp/B00DWX8PM2 DC-DC Boost Converter Step-Up Power Module
  • 1 × http://www.amazon.com/Rockminer-Breakout-Board-ATX-Adapter/dp/B00V44UNXU ATX Breakout Board
  • 1 × Any ATX computer power supply lying around
  • 1 × http://www.amazon.com/Rosiness-M3-Stand-off-Accessories-Assortment/dp/B00LGBM3J8 Nylon standoffs

View project log

  • 1
    Step 1

    Connect power supply ATX cable to ATX breakout board

  • 2
    Step 2

    Connect a terminal block on the ATX breakout board with 2 wires to the buck module IN terminal block

  • 3
    Step 3

    Connect a terminal block on the ATX breakout board with 2 wires to the boost module IN terminal block

View all 6 instructions

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