# pi filter

A pi filter is a filter with a high slope, which is much higher than that of normal filters. The name pi filter or pi element, also known as a Collins filter, is due to the pi-shaped arrangement of the reactances.

Pi filter

Depending on how the reactances are arranged, it can be a high pass or a low pass.

A pi-shaped low-pass filter is an interconnection of two LC filters: two capacitors with a series-connected coil of double inductance. As a high-pass filter, a pi filter consists of two inductors with a capacitance connected in series.

Pi filters are characterized by the high edge steepness and have no resonance points.

Informations:
 Englisch: pi filter Updated at: 19.11.2019 #Words: 111 Links: filter, name, also known as (aka), line conditioner (power supply) (LC), coil Translations: DE Sharing: