Author Topic: Uses of capacitor connected in series with Vdc  (Read 1291 times)

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Offline zzlong94Topic starter

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Uses of capacitor connected in series with Vdc
« on: November 21, 2017, 06:00:42 pm »
Capacitor is connected in series with Vdc to clear off the ripple of Vdc.
However, the value of capacitor is just 100 nano Farad .
it is possible to clear off ripple of Vdc or its act as another function as well?
 

Offline rstofer

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Re: Uses of capacitor connected in series with Vdc
« Reply #1 on: November 21, 2017, 06:13:26 pm »
I guess I don't see the capacitor as 'in series' with anything but rather connected across the power supply and it is intended to absorb high frequency transients.  This is commonly called a 'decoupling capacitor'.  Dave has a video about this:



« Last Edit: November 21, 2017, 06:20:50 pm by rstofer »
 

Offline nugglix

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Re: Uses of capacitor connected in series with Vdc
« Reply #2 on: November 22, 2017, 07:35:57 am »
And Alan has one with experiment and the usual nice explanation.

 

Offline Brumby

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Re: Uses of capacitor connected in series with Vdc
« Reply #3 on: November 22, 2017, 08:40:44 am »
Capacitor is connected in series with Vdc ...

It absolutely is not.  It is connected in parallel, commonly described as "across".

Using multiple Earth symbols for all "ground" points is frequently done, but it takes away the visual cue of a single line running across the circuit diagram, which makes parallel connections much more obvious.
 


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