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Earth of the RC-LPF #6

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cyllboy opened this issue Jul 30, 2020 · 4 comments
Open

Earth of the RC-LPF #6

cyllboy opened this issue Jul 30, 2020 · 4 comments
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question Further information is requested

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@cyllboy
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cyllboy commented Jul 30, 2020 •
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I know... this is a newbie question...
Where do I connect the earth of the RC-LPF? As far as I know it is not the same as "ground".

I refer to the symbol:

   |
----- 
/////

Thank you!
@cyllboy
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cyllboy commented Aug 7, 2020 •
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Issue solved, I connected it to the common ground

@toyoshim
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toyoshim commented Aug 8, 2020

Sorry, I haven't noticed your question.
Yes, using a common ground is fine. RC-LPF is a "kind of analog circuit", but here it is used only to generate a 2.5V signal from a 5V 1:1 PWM signal. So, we don't need to be so serious against noise.

@toyoshim toyoshim added the question Further information is requested label Aug 8, 2020
@toyoshim
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toyoshim commented Aug 8, 2020

this will be a good question to be kept open for others.

@cyllboy
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cyllboy commented Aug 8, 2020

Thank you! Your design works like a charm!

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@toyoshim @cyllboy