RC charge time calculator
Calculate the time for an RC circuit to charge to a target fraction of its final voltage.
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TechOverflow calculators:
You can enter values with SI suffixes like 12.2m (equivalent to 0.012) or 14k (14000) or 32u (0.000032).
The results are calculated while you type and shown directly below the calculator, so there is no need to press return or click on a Calculate button.
You can enter values with SI suffixes like 12.2m (equivalent to 0.012) or 14k (14000) or 32u (0.000032).
The results are calculated while you type and shown directly below the calculator, so there is no need to press return or click on a Calculate button.
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The RC charge time is the time required for a capacitor to charge to a specific percentage of its final voltage through a resistor.
$$ t = -\tau \ln(1 - \text{ratio}) $$where $\tau = RC$ is the time constant and the ratio is the target voltage as a fraction of the final voltage (e.g., 0.90 for 90%).
See also: How to compute RC charge time in Python using UliEngineering
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Calculators, Electronics
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