Re: Cap voltage - time

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jimlux-at-earthlink-dot-net>

When charged from a constant current source, V = I * T/C
When charged from a constant voltage source through a resistor
V = Vcharge * (1-exp(-T/(R*C))
where exp(x) is e^x, where e = 2.71828459045....
Units: Ohms, Volts, Farads(!), Seconds


----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, February 20, 2001 7:38 PM
Subject: Cap voltage - time


> Original poster: "kevin wilson by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <thebiggiantkevin-at-hotmail-dot-com>
>
> Could someone please give me the equation to find a caps exact voltage
after
> a given charge time? Probably a basic equation, but I cant find it
anywhere.
> Thanks
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