I built a small desktop power supply, which has profiles, and can output constant-current, or constant-voltage - from 0 to 48V.

This means that I can use it to charge batteries as well! I am using the same DC-DC converter from this Dave Jones video

Hardware

  1. Drok 0-55V DC-DC converter
  2. Mean Well LRS-100-48 48V 2.3A 
  3. 3-pin plug and wires
  4. 4mm banana plug connectors
  5. 3D printed  enclosure : I tweaked a bunch of things here, most importantly the length of the box that houses the Mean Well PSU.
  • User manual for the DC-DC converter
  • Edit - beriberikix on Twitter pointed out that I can run open source firmware on the Drok module! github.com/kanflo/opendps
  • I am building 2 such supplies, one will operate from 0-24v using a Mean Well LRS-150-24, and the other using the specs mentioned above. Here are some photos of the build -
I fits well! But now way to clamp. Am using duct tape for the time being
I fits well! But now way to clamp. Am using duct tape for the time being
I tweaked the length of this 3D file
I tweaked the length of this 3D file
the piece at the front
the piece at the front