• Finished!

    Laboratorio Gluón • 10/16/2022 at 09:41 • 0 comments

    And here we have the finished DC Load! The software currently only support "Const current" mode, however, it can be improved. My goal is to have a fully functional:

    • Constant Current
    • Constant Power
    • MPPT
    • Battery tester
    Finished DC load
    Finished DC load

  • And it was born!

    Laboratorio Gluón • 02/28/2022 at 21:23 • 0 comments

    I started soldering, but some issues with customs, made the components delay que finishing for 3 months. I just was able to just solder some parts, but most of SMDs where missing.

    Started soldering

    Here the load ready to be tested, fully assembled. It works like a charm (maybe not that good). Some problems with the ADC measures and Analog reference, mislead the measurements.

    System ready for first test

    I decided to design an enclosure, I would share it, but the design has to be tailored for each heatsink, so it is useless, you will have to design yours :)

    Fully assembled (missing decoration and the two buttons)

  • Building version 1.0 (Never forget the DRC check!!)

    Laboratorio Gluón • 01/25/2022 at 14:23 • 0 comments

    After doing all the design of the schematic and PCB in the online streams, I ordered the PCBs to be manufactured online. When they arrived I started assembling all the components in the PCB, and the problems arised.

    Real PCB!
    Real PCB!

    This DC Load can be tailored to each specific job. In my case I did the schematic for my own purpose, that is: 

    - Max Voltage : 15V

    - Max Current:  3A

    I didnt have all the components when I started the assembly, so I started with what I had, that is the screen, the Arduino and some buttons. This way, I can start testing the inputs and the first version of the source code.

    Even in such small step there were problems in the PCB and so, I had to implement some ad-hoc solutions: