On October 30, 2007 at 16:18, hiker said...
I'm confused why you would need more than one capacitor.
I'm no electronics engineer but I did study electronics
in college. I still have one of my textbooks from 1964
(yes you probably can figure out my age now) and I looked
up the equation for using capacitors in parallel. And
yes my memory was correct, the total capacitance is equal
to the sum of the individual capacitances.
CT = C1 + C2 + C3 .......
So effectively 100uF, a 10uF, a 1uF and a .1uF would give
you 111.1uF total capacitance.
Why wouldn't using just one 100uF capacitor be roughly
the same?
On December 26, 2006 at 18:12, learninght said...
I’d put in a 100uF, a 10uF,
a 1uF and a .1uF capacitor right at the power entry point.
Different size capacitors respond to different duration
transients. The biggest capacitor (100uf) provides a long
term reserve storage of power that could last for milliseconds.
The smaller ones respond to shorter requirements and are
needed because larger capacitors take a bit of time to
start supplying power.
