varying d.c signal and capacitor

Thread Starter

sparkymak

Joined Jun 6, 2016
1
If a capacitor blocks d.c. and passes a.c what happens if a varying d.c signal is applied.
As it is still d.c , is it blocked ? . If not then is it right to say a capacitor only blocks constant d.c

Thanks
 

dendad

Joined Feb 20, 2016
3,084
The AC component of the varying DC is passed. That is a normal use of a capacitor, to block the DC and just pass the AC signal.
And really, a varying DC is DC with AC superimposed.
 
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