What is Low-pass filter?
[[File:1st Order Lowpass Filter RC.svg|thumb|A passive low-pass filter]] [[File:Active Lowpass Filter RC.svg|thumb|An active low-pass filter]] [[File:Butterworth response.svg|thumb|Signal being filtered with 1 rad/s cutoff frequency low-pass filter]] A '''low-pass filter''' is an [[Filter (electronics)|electronic filter]] that passes the [[frequency]] component of a signal below a certain value ([[cutoff frequency]]). The frequency component above that certain value will be suppressed to almost zero. == Related pages == * [[High-pass filter]] * [[Band-pass filter]] * [[Band-stop filter]] {{sci-stub}} [[Category:Electronic components]]