active filter


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active filter

[′ak·tiv ′fil·tər]
(electronics)
A filter that uses an amplifier with conventional passive filter elements to provide a desired fixed or tunable pass or rejection characteristic.
References in periodicals archive ?
Requiring mathematical and general electronics knowledge, the work discusses such topics as separating and managing AC and DC gain, transducer to analog-to-digital converter interfacing, active filter designs, op amps for radio frequency design, low voltage op amp circuits, design for extreme environments, and voltage regulation.
Currently, harmonic filter market growth is driven by commercial market applications and the uptake of active filter technology.
app's Spam Protection feature and the active filter rules are applied.
Every incoming call or text message is scanned by the app's Spam Protection feature and the active filter rules are applied.
Section 5 explains control of Electromechanical Active Filter and used algorithm of the variable window Fourier transforms for extraction of the reference signals in detail.
The development of new Shunt Active Filter is presented.
This is an active filter regeneration system, accomplished through an integrated fuel burner system.
To help speed the design process, Microchip provides the FilterLab Active Filter Software Design tool and SPICE Macro Models at no cost from the company's Web site.
System uses sub-micron particulate filter cassettes in both the active filter and safety filter stages, affording the ability to accept high levels of contaminants in the inlet air stream; guaranteed 24-hour system operation; and the ability to dedust different tablet presses with one filter system without product cross contamination.
The two-layered filter medium consists of a support and drainage layer as well as an active filter layer.
Although their numbers are reduced in winter some will remain alive in an active filter ready to multiply in spring.