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Title: Current-mode universal filter topology with electronic tuning property using single current follower
Authors: Tangsrirat, Worapong
Bunruang, Kritsada
Keywords: Second-Generation Current-Controlled Conveyor
Current Follower
Biquadratic Filter
Issue Date: Feb-2012
Publisher: NISCAIR-CSIR, India
Abstract: The current-mode universal biquadratic filter with three inputs and single output (TISO) using single multi-output current followers (MO-CF) has been described. Based on the use of the second-generation current-controlled conveyor working as the MO-CF, the proposed circuit contains only one MO-CF, one resistor and two grounded capacitors, therefore, offers electronic tuning possibilities. It can realize all of the five standard biquadratic filtering functions, all at a high impedance output. The present filter also provides an independent control of the natural angular frequency <img src='' border=0> and bandwidth (BW) by adjusting an external <i>dc</i> bias current and has active and passive component sensitivities.
Description: 133-137
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.50(02) [February 2012]

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