> From:         =?iso-8859-9?B?1m1lciBZYWxo/Q==?=[SMTP:oyalhi@TEKSAN.COM.TR]
> Sent:         Tuesday, January 06, 2004 5:14 PM
> To:   PICLIST@MITVMA.MIT.EDU
> Subject:      [EE:] RC Charge time

Given a resistor R, a capacitor C, and a voltage V, the voltage on the
capacitor will be
V(cap) = V * (1 - exp( - t / ( R*C ) ) )
where t is the time in seconds, and exp() is the exponential function.
This assumes that the capacitor is initially discharged and that the
voltage rises instantly from zero to V. The capacitance is in farads,
and the resistance is in ohms. Make sure that you convert micro-
farads to *farads*.

John Power

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads