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PowerEngineerLab · TOOL-010

RC Time Constant Calculator

Compare ideal capacitor charging and discharging over time.

01 / Inputs

RC circuit parameters

02 / Result

RC response

Waiting for input

Enter circuit values and elapsed time to estimate the ideal capacitor voltage.

Method and boundaries

τ = RC. Charge: Vc = V0(1 − e^(−t/τ)); discharge: Vc = V0e^(−t/τ).

Charging assumes an initially uncharged capacitor approaching a constant V0. Discharging assumes an initial V0 and ideal 0 V reference. Component tolerances, source/load impedance, leakage, switching transients and ratings are not evaluated.

Method and boundaries

τ = RC. Charge: Vc = V0(1 − e^(−t/τ)); discharge: Vc = V0e^(−t/τ). Charging starts at 0 V; discharging starts at V0.

Component tolerances, source/load impedance, leakage, switching transients and component ratings are not evaluated. SRC-001 · model 1.0.0 · user-input-v1.