LRC Circuit Model  

This model is based on the solution of the second-order differential equation for d2i/dt2. By changing the values for R, L and C, students can investigate the various behaviors of the system.

THE MODEL
Vensim Version STELLA Version

[Diagram Level | Equations Level | Graphs ]



Change_in_current(t) = Change_in_current(t - dt) + (Rate_of_rate_of_change_in_current) * dt
INIT Change_in_current = 0.1 {A/s}
Rate_of_rate_of_change_in_current = -((resistance*Change_in_current/inductance)+Current/(inductance*capacitance))
Current(t) = Current(t - dt) + (Rate_of_Change_of_Current) * dt
INIT Current = 1 {A}
Rate_of_Change_of_Current = Change_in_current
capacitance = .2 {F}
inductance = 1 {H}
resistance = 1 {Ohms}
voltage = Current*resistance

Time Specs
Range: 0-12, dT = 0.05, Integration Method = Runge-Kutta 4


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