After working on precision control of the Arduino PWM frequency and my DCOI opto-isolator MOSFET driver, the MPPT controller will be adopting these new innovations.

By Julian

Youtuber, shed dweller, solar charge controller aficionado

10 thoughts on “Arduino mppt solar charge controller #15 – changes coming”
  1. Avataaar/Circle Created with python_avatars The Fixman says:

    Julian, love your vids. Thank you for that. Do you plan to make arduino based MPPT for DIY wind turbines? Best would be MPPT algorythm based on TSR (Tip Speed Ratio of particular turbine) lookup table (table created using anemometer and tachometer)?

  2. Avataaar/Circle Created with python_avatars beforebefore says:

    Have you even checked the efficiency of this PWM circuit?ย  (measure output POWER, compare it to input power)
    Output filter inductor – you need to be sure it's not going into saturation. The output MOSFET "ON" time needs to be set such that it keeps just shy of saturating at the MAX output current condition, then vary the repetition rate for the output adjustment.ย  If the "ON" pulse is too short, you need more inductance, but make sure the inductor is rated above the expected output current.

  3. Avataaar/Circle Created with python_avatars W8FG says:

    What an awesome project! Just something I have been looking to learn! Subscribed and look forward to seeing more as I want to build something like this for my portable amateur radio gear, 73

  4. Avataaar/Circle Created with python_avatars Sabina says:

    nice video…can you give more info plz i wanna knw ๐Ÿ˜‰

  5. Avataaar/Circle Created with python_avatars Julian Ilett says:

    Thanks Tom for sitting through the whole thing – it must be an hour or so long now. This one I'll keep very detailed, it's kind of a diary of the whole design process. And I won't be editing out the mistakes and wrong turns. Thanks for your support.

  6. Avataaar/Circle Created with python_avatars Julian Ilett says:

    Thank you, your support keeps me motivated. More coming soon.

  7. Avataaar/Circle Created with python_avatars Julian Ilett says:

    Many thanks, very kind

  8. Avataaar/Circle Created with python_avatars Henner Zeller says:

    Watch all his videos, he documented every step and experiences in the electronic endeavor quite nicely.

  9. Avataaar/Circle Created with python_avatars Charles McCune says:

    one that will the most out of a turbine. if you have any good ideas shoot me a message I like to learn more. lol. nice project, you have.

  10. Avataaar/Circle Created with python_avatars Charles McCune says:

    this is pretty cool. I like to build one for my wind turbine. for charging a 24 volt battery bank. or for putting the power straight in to a gti at maxum voltage and power. I like to build a system were it will take up to 10volts and bost it to charging voltage. and then when the turbine spins up and goes over voltage it then steps down the voltage to charging voltage. with a mixum inpurt of up to 100 volts. and also beable to brake the turbine at a giving voltage. ect.

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