A New DVCC+ Based Second-Order Current-Mode Universal Filter Consisting of Only Grounded Capacitors

Abstract

In this paper, a new second-order current-mode universal filter using only two plus-type differential voltage current conveyors, three resistors and two grounded capacitors is proposed. The proposed circuit with two identical inputs and three outputs can simultaneously provide second-order high output impedance low-pass, band-pass and notch filter responses. Also, it can realize high-pass and all-pass filter responses with interconnection of relevant output currents. It can be easily tuned electronically. It can be operated properly at high frequencies. A number of simulations based on SPICE program and an experimental test are achieved in order to demonstrate the performance of the proposed filter.

Various applications of analog signal processing employing voltage differencing current conveyor and only grounded passive elements: a re-convertible approach

“…The transfer functions for band pass, high pass, and low pass filter functions are given in ( 4)- (6). The common denominator polynomial, angular frequency, and quality factor are represented by (7) to (9) respectively. It can be seen from ( 9) that the quality factor of the designed filter is independently tunable with the help of R 0 without changing its center frequency.…”

“…In the open literature many researchers have proposed the design model of circuits that can act as an active filter, sinusoidal oscillator and synthetic inductor utilizing distinct methodology and employing different active building blocks (ABB) such as DVCC (differential voltage current conveyor) [9], CCII (second generation current conveyor) [15], CCIII (third generation current conveyor) [11], FDCCII (fully differential current conveyor) [12], OTA(operational trans-conductance amplifier) [18], EX-CCCII (extra copy current controlled current conveyor) [14], CCCDTA (current…”

“…The design solutions for analog signal processing applications by employing different active building blocks such as the realization of a synthetic inductor [3][4][5][6][7][8], formation of active filters [9][10][11][12][13][14][15][16][17][18][19][20][21], and generation of sinusoidal oscillators [19,[21][22][23][24][25][26][27][28][29][30][31][32][33] are available in the open literature. Inductors can be further classified as grounded [3][4][5][6][7] and ungrounded or floating inductors [6,8].…”

Analytical synthesis of elliptic voltage‐mode even/odd‐ n th‐order filter structures using DDCCs, FDCCIIs, and grounded capacitors and resistors

“…Over the last decade or so, numerous current conveyor‐based second and higher‐order filters have been presented [1–59]. Several n th‐order filter syntheses through signal‐flow graph approach have been reported [15–22].…”

“…Several DDCC or/and FDCCII‐based filters have been presented in the literature [14, 28–59]. A single FDCCII‐based universal (i.e.…”