Some types of capacitors, primarily tantalum and aluminum electrolytic capacitors, as well as some film capacitors have a specified rating value for maximum ripple current.

This Capacitor Current Calculator calculates the current which flows through a capacitor based on the capacitance, C, and the voltage, V, that builds up on the capacitor plates.

To put this relationship between voltage and current in a capacitor in calculus terms, the current through a capacitor is the derivative of the voltage across the capacitor with respect to time.

Demonstrates the capacitor i-v equation by deriving the voltage on a capacitor driven by a current source. Written by Willy McAllister.

The gist of a capacitor's relationship to voltage and current is this: the amount of current through a capacitor depends on both the capacitance and how quickly the voltage is rising or falling.

Capacitor Discharging

Capacitive current is the current that flows through a capacitor when the voltage across it changes. This current is a direct result of the capacitor’s ability to store and release energy in the form of an electric …

A capacitor is referred to as a passive device that collects energy in its electric field as well as sends back the energy to the circuit each time needed. This article discusses current in a capacitor.

Capacitors can be used to smooth out electrical impulses or to turn constant electric currents into a series of impulses. Use the simulation below to begin your exploration of capacitors and discover …

Current flows through the voltage source in the same direction as though it were powering a load (e.g. a resistor). When the capacitor’s voltage equals the source voltage, current stops in the circuit.