Simulation of Charging & Discharging in Capacitors & Supercapacitors
This charging-discharging method is used to estimate the capacitance of the capacitors.
By simultaneous charging & discharging of a capacitor, its capacitance can be estimated from the time duration and change in potential.
Charging & discharging potential (in Volts) against time (seconds) is recorded under constant resistance (Ohms).
If the current is kept constant, it is known as the galvanostatic charging and discharging (GCD) technique. It is used to estimate the specific capacitance of supercapacitors.
Charging & discharging potential (in Volts) is plotted against the respective time (in seconds).
From the graph, the capacitance can be estimated.
To perform the simulation, Falstad Online Circuit Simulator (free tool) is used.
Download link for Offline Circuit Simulator Program:
Download link for program file (text file) used for this simulation:
This downloaded text file can be loaded as such without much alteration.
Watch this video tutorial for further explanations.
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Also, check the related eNote:
Capacitors: Calculations & Simulations on Charging, Discharging Time & Voltage