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DIY Mini Lab Power Supply

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Creation quality: 5.0/5 (1 vote)
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  • 4.7k views
  • 13 likes
  • 115 downloads

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3D design format
STL Folder details Close
  • Back_Panel.stl
  • Bottom_Shell.stl
  • Front_Panel.stl
  • Potentiometer_Knob.stl
  • Top_Shell.stl

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Publication date 2020-12-14 at 15:59
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Published to Thingiverse on: 2020-12-11 at 20:37
Design number 244495

3D printer file info

3D model description

A bench power supply is extremely useful for electronics hobbyists, but they can be expensive when purchased from the market. In this Instructable, I will show you, how to make a mini-lab power supply with a limited budget. It is a great DIY project for beginners as well as anyone interested in Electronics.

Instructables Link: https://www.instructables.com/DIY-Mini-Lab-Power-Supply/

The Power Supply is based on XL4015 DC-DC buck converter module. This module can provide an adjustable output-voltage from about 1.4V, up to the input voltage and current output from 0mA to 5A. It only requires only a DC power supply with a voltage range between 12-30V. I have used a 24V/3A DC adapter.

The power supply can be used for the following purposes:

  1. Variable Power Supply

  2. Battery Charger

  3. Constant Current LED Driver

  4. Solar Charger Controller

Components Used:

  1. XL4015 Buck Converter: https://amzn.to/3qS4jir

  2. Volt-Amp LED display: https://amzn.to/37aZIAn

  3. 2 x 10k Precision Potentiometer: https://amzn.to/3ndO25c

  4. 2 x Binding Posts: https://amzn.to/3mdRHPf

  5. DC Jack (5.5mm x 2.1mm): https://amzn.to/342MnrS

  6. 2 x Rocker switch: https://amzn.to/3a09uqN

  7. Fuse Holder: https://amzn.to/378BVRk

  8. Fuse: https://amzn.to/3gCeeEi

  9. Heat Sink: https://amzn.to/2Kj8C5P

  10. 20AWG Wires: https://amzn.to/380lXYI

  11. Heatshrink Tubing: https://amzn.to/3qQOEzW

  12. 12-30V DC Power supply: https://amzn.to/379leVW

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