pi filter

[′pī ‚fil·tər]

(electronics)

A filter that has a series element and two parallel elements connected in the shape of the Greek letter pi (π).

Mentioned in ?

VCC filtering

References in periodicals archive ?

Figure 3 shows the arrangement of components for a Pi filter, which requires two planar capacitor arrays.

Filtered connectors and the coming alien invasion

Field current regulator with PI filter (MAN operating mode);

Excitation system models of generators of Balti and Eesti power plants

If the power supply uses power factor correction, a differential mode choke is often used in a Pi filter configuration with metal-film capacitors to reduce the differential-mode noise.

Early attention to EMI keeps new products on schedule: for optimal EMI control at the OEM system level, it's crucial to ensure that specific points are considered before selecting an AC/DC switching power supply. The following report reviews many areas of power supply design that are essential to effective EMI suppression

The Mini series is available in both LC and PI filter configurations from 1 to 13 positions.

Terminal blocks

Each of the six circuits on the EClamp2357N is comprised of a pi filter circuit that includes TVS diodes for ESD protection, and a resistor capacitor network for EMI/RFI filtering.

Semtech Presents New EClamp Protection Device for Secure Digital Memory Card Designs

All models provide overvoltage and continuous short circuit protection, and they contain an internal input PI filter.

Open frame isolated DC/DC converters

It features a 2:1 input voltage range, input-to-output isolation, soft start, an input Pi filter, short circuit protection, 380k Hz switching frequency, flyback topology and four low-dropout linear regulators.

Low-Noise, 15W quadruple-output DC/DC converter

Pi filter configurations such as C-R-C attenuate noise in both directions, preventing EMI from going both in and out of the system.

Semiconductor solutions to EMI filtering. (Special Feature: Consumer Electronics)

4) features advanced loop compensation functionality that makes it easy to simulate output capacitors and filtering networks such as PI filters on the output of 3E* Point-Of-Load (POL) DC/DC converters, and to optimize loop response without hardware modification for the end application.

Sweden : Ericsson adds simulation to DC/DC Power Designer software, reducing time-to-market

All models feature input pi filters, input under voltage lockout, output current limiting, and short-circuit protection.

NEW 15-WATT DC/DC CONVERTER NEEDS NO HEAT SINK

The industry has reached the point where traditional architectures, based upon resistor--capacitor (RC) pi filters, impose limitations in terms of signal integrity and system robustness, and advanced integrated passive solutions based on a new architecture are required.

Considering high bandwidth data interfaces

Spectrum Control released its Series 700 D-subminiature filtered connectors that are available with feed-thru capacitors and Pi filters that offer desirable insertion loss with capacitance ranges to 5,000 pF for feed-thru caps and 4,000 pF for Pi filters.