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Solar Controller

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  • 16 downloads

3D model description

Update:
I extended the sides where the LM2596 is placed.

YouTube: https://youtu.be/wc3J8u5KAgE

This is a solar controller that can turn an 18v or 20v solar panel input into a 12v output utilizing the LM2596 DC-DC step-down. I design this for a Raspberry PI 3 with a 7-inch monitor to run on strictly solar power but can be used for other devices as well.

LM2596 how to adjust voltage: https://youtu.be/s7_B0LqUKuM

LM2596:
Input: 3v - 40v
Output: 1.5v - 35v
Maximum output amps: 3 amps

Fan:
50mm X 50mm X 11mm
12v
uses about .03 amps - .04 amps

Push on/off button:
3 amp button

I used a 30-watt solar panel and at the highest daylight output, I made adjustments to the Lm2596. I set the LM2596 from 19 v to 12.6 volts. Different solar panels may have different output volts so adjust accordingly. Remember the LM2596 has a max amp output of 3 amps so make sure you don't go over or you will overheat the chip. I used a 3D Pen to make the plug stronger and to set the LM2596 in place. I can use a hot air gun to remove if I need to.


3D printing settings

Printer Brand:

Robo 3D

Printer:

R1 ABS + PLA Model

Rafts:

Doesn't Matter

Supports:

Yes

Resolution:

.2

Infill:

15% - 20%

3D printer file information

  • 3D design format: STL Folder details Close
    • solar_controller_Bottom.stl
    • solar_controller_top.stl

    Learn more about the formats

  • Publication date: 2018/07/05 at 10:45

License

CC BY NC

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