How to calculate the discharge rate of a capacitor?
Hey guys, i know how to calculate the charge rate, but how do i calculate the discharge rate of this circuit? This is a dimmer light, and an you please give me the formula of the discharge rate of the capacitor and how long will the LED stay on for? Thanks Magel Last edited by magello; 5th October 2009 at 09:28 AM. Reply With Quote 5th October 2009 01:54 PM #2 Ubergeek63 Join Date Apr 2008 Posts 1,227 Capacitor Discharging Q=CV and if you do the math the capacitor voltage changes about 63% over the time RC. In your case it would be the difference between the current voltage and the 1.7V LED voltage. Dan Last edited by Ubergeek63; 5th October 2009 at 02:02 PM. Reply With Quote 5th October 2009 04:54 PM #3 BrownOut Join Date Jun 2009 Location Huntsville, Alabama USA Posts 1,986 If you know how to calculate the charge rate, then you know how to calculate the discharge rate, as the equations are the same; they depend on the capacitance and the circuit resistance. In your circuit, the capac
