_q12x_
DIY
- Reaction score
- 212
That is true. We cant know for certain. BUT...my very best guess, is this signal, created by the PWM is like a picture of 800x600. When you look at it from afar, from distance, it looks detailed and good to watch, and no problems, right? Now, when I add a magnifying glass, which is our "splitter"/ fv divider here, that is magnifying by 100 times in my practical case (1/100), NOW we can see the bloody pixels in that image. Right? So again, my best guess, the source of the signal is good to a point or to a magnification. After that is crapping itself down. But...I and you do not know whether the variation in division result is due to variation of the input from your PWM circuit or in your 555 divider circuit or both.
- Doesnt matter from where is the source !!! We must add a "silencer" / "a filter" that will let flow only the important thing.
Again, im not the math guy here so you'll have to understand this aspect about me. Im better at visual representation more than anything. Im trained on it all my life actually.
My idea that is not finished yet, but I will expose it as unfinished as it is, is the folowing: we dont go in the range of 10Hz to 6Hz where the fluctuations are the worst. We go a bit higher. Let's say to 20Hz just to be sure. Right? Now, from this "sure" position, we can start trim and cut and filter what we need and send out only a constant flow of impulses at 20Hz and the rest of fluctuations trim off or avoided somehow. And this is where my idea stops.
Actually it is in my plan to try a very simple approach, like we deal with 240V filtering, after all this is also a fluctuating current, right? and I will add a filtering capacitor in the output of this fluctuating crapping itself signal. It is in plan, I have to try it. This is the simplest idea I could think.
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