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📝 How it works:
Calculate the cutoff frequency of RC and RL filters: f_g = 1/(2πRC) or R/(2πL). With time constant τ. For first-order low-pass and high-pass filters.
Fill in the fields below and click "Calculate".
Calculate the cutoff frequency of RC and RL filters: f_g = 1/(2πRC) or R/(2πL). With time constant τ. For first-order low-pass and high-pass filters.
Fill in the fields below and click "Calculate".
The cutoff frequency (−3 dB) separates the passband and stopband of a filter. For the RC network, fg = 1/(2π·R·C) applies; for the RL network, fg = R/(2π·L). The time constant τ = R·C or L/R describes the transient response. The tap point determines whether it is a low-pass or high-pass filter.
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