yes


----- Original Message ----- 
From: "Josh Koffman" <joshybear@gmail.com>
To: "Microcontroller discussion list - Public." <piclist@mit.edu>
Sent: Tuesday, September 26, 2006 3:59 PM
Subject: Re: [EE] AC/DC Question


> On 9/26/06, Bob Blick <bblick@sonic.net> wrote:
> > > How do you calculate the value and rating of that capacitor given the
> > > maximum current draw? I can't seem to remember any of my capacitor
> > > formulae (or even if I knew one that would have helped in this
> > > situation).
> >
> > 1 Farad 1 Amp 1 second = 1 Volt.
> >
> > A decent rule of thumb for your current setup is 7 or 8 volts ripple
peak-to-
> > peak with 1000 uF at 1 amp load. If you want less ripple, use more
> > capacitance.
>
> Ok...so what is the relationship between the formula and the rule of
> thumb? For instance, if I had a 5 amp load, do I need to increase
> capacitance to 5000 uF to keep 7-8V ripple?
>
> Thanks!
>
> Josh
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