Capacitor ESR effects

Updated August 16 2008

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New for September 2008! This page will show you why you need to worry about the equivalent series resistance of charge storage capacitors in pulsed applications.

The equivalent series rsistance of a capacitor can be a strong function of voltage n ceramic capacitors, but a near constant in electrolytics.

In the case of electrolytic capacitors powering a pulsed transmitter, the ESR of a 4.7 uF capacitor might be on the order of one ohm.

More to come...