• 4 Posts
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Joined 2 years ago
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Cake day: June 19th, 2023

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  • Norodix@lemmy.worldtoAsk ElectronicsSchematic review
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    11 months ago

    I don’t think the PWM on the arduino is slow for your application. Motors are actually great for filtering. Even if the current is not filtered, mechanically it is so slow that you can go as low as 100Hz and still drive the motor acceptably well.


  • Norodix@lemmy.worldtoAsk ElectronicsSchematic review
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    11 months ago

    I also worry about the LM7818. It drops about 6V, so at 330mA it burns 2W, which seems like the maximum for the package that I quickly pulled up. If you have a very efficient buck converter that gives you at most about 1A to drive the motor. Not a lot of overhead.

    Also as I said already, you could just skip the whole thing and make everything work from the 24V using PWM. Since you want to drive it with an arduino that is not a difficult thing.