These are inverse exponential responses, it won't be symmetrical.
But the pot should help move it toward vaguely similar rise and fall rates.
The integrator mentioned in post 50445 is capable of creating a very nice trapezoid.
We had a discussion on this going in the AT-Sprint group over a decade ago:
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where we found a way to make the rise and fall slopes of the trapezoid equal,
and also how to make the slopes constant when the power supply voltage varied.
Way overkill, most of us should just stick with the cap and resistor.
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On Fri, Jun 8, 2018 at 09:17 pm, Jerry Gaffke wrote:
If you want the rising and falling edges to be symetrical,
