Abhirup Lahiri

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Keywords: Active RC circuits Sinusoidal oscillator Z-copy controlled-gain current differencing buffered amplifier (ZC-CG-CDBA) a b s t r a c t This paper presents a first of its kind canonic realization of active RC (ARC) sinusoidal oscillator with non-interactive/independent tuning laws, which simultaneously provides buffered quadrature voltage outputs and(More)
Keywords: Active C circuits Quadrature sinusoidal oscillator Resistorless Differential voltage current-controlled conveyor transconductance amplifier (DVCCCTA) a b s t r a c t This paper presents a new realization of resistorless mixed-mode (i.e. both voltage-mode and current-mode) quadrature sinusoidal oscillator using a new active building block (ABB)(More)
In addition to the recently proposed full-wave rectifier by Prommee et al. [25] using voltage-mode (VM) two-cell winner-takes-all (WTA) circuit, we present current-mode (CM) precision full-wave rectifier using CM two-cell WTA circuit. The popular Lazzaro's CM WTA circuit has been employed for the purpose and there is no requirement of inverting the input(More)
The paper deals with a pair of current-mode sine-wave oscillator circuits. Both these circuits are implemented using positive second-generation current conveyors (CCII+). The principle of the first oscillator is based on a conventional Wien-bridge network. However, this implementation suffers from the use of a floating ca-pacitor, which can be unacceptable(More)
This article presents a voltage-mode universal biquadratic filter (low-pass, high-pass, band-pass functions), based on current controlled current conveyor transconductance amplifiers (CCCCTAs). The features of the circuit are that: the quality factor and pole frequency can be tuned orthogonally via the input bias currents: the circuit description is very(More)
This paper proposes a new, compact CMOS realization of current-mode (CM) first-order all-pass filter (APF) using no external resistors. The circuit is created using only ten transistors and one external capacitor. The circuit uses lower number of transistors as compared to previously reported CM APFs using active building block (ABB) based approach. A(More)