Key Takeaways

• The project showcases version 3 of an electronic load featuring:

  • SMD (Surface-Mount Device) components.
  • A sleek 3D printed case made from marble PLA filament.
  • A 1.8 inch TFT display for monitoring.

• Front Panel Features:

  • Banana plugs for load connections.
  • An on/off button.
  • LED indicators:
    • Blue for negative.
    • Red for positive.
    • Green for load state.

• Back Panel Features:

  • Main switch.
  • 12V power input.

• Testing Results:

  • When connected to a power supply set to 12V, the display accurately shows current readings.
  • Overcurrent protection activates at currents beyond 2A.
  • Overvoltage protection triggers when voltage exceeds 24V.
  • Thermal protection activates at 60°C, cutting off the load to prevent overheating.

• Cooling System:

  • A cooling fan automatically turns on at 45°C to manage temperature.

• Internal Components:

  • The main control board includes:
    • Atmega328 microcontroller.
    • INA 219 current sensor.
    • LM358 operational amplifier.
    • Mini 360 Buck converters for voltage regulation.
    • Protective components like fuses and diodes.

• 3D Printed Case:

  • The case is aesthetically pleasing due to the marble PLA filament used.

• Final Assembly:

  • The video concludes with reassembly and highlights the compact and feature-rich design of the electronic load.

• Viewer Engagement:

  • Viewers are encouraged to leave comments and support through subscriptions or social media.