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IJPAP Vol.50(02) [February 2012] >


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 and bandwidth (BW) by adjusting an external dc bias current and has active and passive component sensitivities.
Page(s): 133-137
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.50(02) [February 2012]

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