What is High-pass filter?
[[File:High pass filter.svg|thumb|A passive high-pass filter]] [[File:Active Highpass Filter RC.svg|thumb|An active high-pass filter]] [[File:75 Hz HPF on Smaart.jpg|thumb|Signal being filtered with 75 Hz cutoff frequency high-pass filter]] A '''high-pass filter''' is an [[Filter (electronics)|electronic filter]] that passes the [[frequency]] component of a signal above a certain value ([[cutoff frequency]]). The frequency component below that certain value will be suppressed to almost zero. == Related pages == * [[Low-pass filter]] * [[Band-pass filter]] * [[Band-stop filter]] {{sci-stub}} [[Category:Electronic components]]