Lag Filter

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Lag Filter

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The Lag Filter can be used to add a lag in the phase response of a system.

Gain K: The filter gain K determines the low frequency gain of the filter.
Frequency f1: The lag in the phase response of the filter starts at frequency f1 in Hz. This corresponds to an integrating behavior in the magnitude response from frequency f1.
Frequency f2: The lag in the phase response of the filter stops at frequency f2 in Hz. This corresponds to a constant attenuation in the magnitude response of the filter after frequency f2.

Transfer function of the filter

EquationLag.gif (1713 bytes)