Recent content by TenderTendon

  1. TenderTendon

    Help With DC Motor Speed Controller

    Understood. I was hoping for the rare chance that a member here might have come across one of these in the past and tinkered with it.
  2. TenderTendon

    Help With DC Motor Speed Controller

    It is not a dual gang pot. The pot has a switch built in it. No documentation was included.
  3. TenderTendon

    Help With DC Motor Speed Controller

    I'm sure this won't help at all, here here's the link to the controller: https://www.amazon.com/dp/B08MQDTGBJ?ref=ppx_yo2ov_dt_b_fed_asin_title No luck finding a schematic... I should have just got the kid a socker ball.
  4. TenderTendon

    Help With DC Motor Speed Controller

    Hello, I recently purchased a battery operated vehicle for my 2 year old grandson. It has a 12V lead acid battery and a momentary pushbutton controlling the motor. The first thing I noticed was that the switch was connected directly to the motor, so the inrush will kill it pretty quick. The...
  5. TenderTendon

    Capacitance rules...

    Thank you for taking the time to explain this. I've read many articles and watched many videos. None ever explained it as clearly as you did.
  6. TenderTendon

    Capacitance rules...

    I'm guessing you probably feel like a big man when you ridicule people on a public forum, using your supreme intelligence.
  7. TenderTendon

    Capacitance rules...

    Wow, that finally did it. I WAS confusing capacitance with stored charge. Given this information, it's clear to see that a capacitor rated 20uF @ 500v can store much more energy than one rated 20uF @ 50v, even though they have the same capacitance.
  8. TenderTendon

    Capacitance rules...

    Your first 2 sentences here really got me thinking and I think I've finally got it. I had a pretty good understanding of what a capacitor does, but my confusion was with the way capacitors are rated. For example: If I saw a capacitor rated at 20uF @ 500v, I viewed this as a 20uF capacitor with a...
  9. TenderTendon

    Capacitance rules...

    I'm trying to wrap my head around this, but if I read this right, it seems that you are saying that the capacity of a capacitor changes depending on how much voltage is applied to it. Is that the case, or is it simply that the amount of energy stored is halved, because the applied voltage is...
  10. TenderTendon

    Capacitance rules...

    The rules involving capacitors in series and in parallel have always confused me. Even today, when I see a little subject involving a simple DC power supply filter, I still scratch my head. The confusion comes from the fact that when putting 2 capacitors in parallel, the capacitance is doubled...
  11. TenderTendon

    Need to build a simple PWM generator

    One last thing... If anyone in the forum is capable of writing a sketch for the Micro to work exactly as I need, I will gladly pay for your time...
  12. TenderTendon

    Need to build a simple PWM generator

    Well, the Arduino micro's arrived today and I installed the IDE software. I started reading the tutorials and quickly realized that I am in way over my head. I seriously overestimated my abilities. I just don't have the time to learn this, nor the interest. I'm just going to wire up the pulse...
  13. TenderTendon

    Need to build a simple PWM generator

    Thanks. Yeah, I ordered this micro USB convertor too: https://www.amazon.com/gp/product/B08DD49XKX The Arduino micro and the converter will be here tomorrow. Hopefully I'll have it up and running by the end of the night....
  14. TenderTendon

    Need to build a simple PWM generator

    Yes, this a completely restored 1968 Firebird. It's not a concours restoration, so upgrading to some modern systems won't hurt its value. I would like to keep the original 3 speed operation though, instead of the variable speed. I did some brief research into arduino controllers and have to say...
  15. TenderTendon

    Need to build a simple PWM generator

    Well, I do still have some PIC's here. I'll have to check which ones they are. I only need to sink a few ma's. The output pin doesn't need to source anything.
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