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 ?
The villain of the piece emerges as the Planning Ministry which failed to play the role of active filter with the obvious conclusion that it was politically influenced or directed, and surrendered what independence it had and uncertain ground now lies ahead.
Sanchez-Sinencio, "Active filter design using operational transconductance amplifier: a tutorial", IEEE Circ.
Out of the several configurations of hybrid filters, the series hybrid filter suits the best one which contains a small rating of series active filter with tuned passive LC filters.
Additionally, the proposed system has the advantage of operating as a conventional active filter, as shown in Figure 7.
Improvement of the Time Domain Specifications of Dc Bus Voltage of Shunt Active Filter Using Controllers.
The essential scope of services includes: - ms switchgear as sf6 system, Ring feed; - transformers (1 000 kva); - nsvht for the supply of process drives in withdrawable design, Busbars rated current 2 500 a icw 80 ka - lv distribution with frequency converters; - active filter (harmonics); - ups system approx.
The THD value calculated for the computation has been compared with the output of Shunt Active filter installed after the detection to reduce the harmonics [1].
Derbel, "Optimization of a rail to rail low voltage CCII for active filter applications," in International Conference on Design and Technology of Integrated Systems in Nanoscale Era, DTIS'08, 2008.
Figure 9 shows simulated results evaluating the steady-state performance of the control system for two of the selected loads defined in Table II (Load 1 and Load 3) when the microinverter operates as an active filter because of the absence of input power.
Comparison of current control techniques for active filter applications.
The proposal, labeled in the Alabama legislature as (https://legiscan.com/AL/text/HB428/2017) House Bill 428 , would "prohibit the sale of a device that provides Internet access unless the device contains an active filter that blocks access to specified types of obscene material."
Figure 1 presents the schematic diagram of experimental three-phase four-wire shunt active filter connected to the power system.