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A current-mode four-phase quadrature oscillator using 2 current controlled current conveyor transconductance amplifiers (CCCCTAs) and 2 grounded capacitors is presented. The proposed oscillator can provide 4 sinusoidal output currents with 90° phase difference. The oscillation condition and oscillation frequency can be electronically/independently controlled by adjusting the bias current of the CCCCTA...
This article presents a voltage-mode multi-function filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, current controlled differential voltage current conveyors (CCDVCCs). The features of the circuit are that: the quality factor and pole frequency can be tuned independently via the input bias currents: the circuit description is very...
This article presents a current-mode universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based-on dual-output current controlled current conveyor (DO-CCCII). 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...
This article proposes a topology of current-mode improved Wheatstone bridge based on dual-output current differencing transconductance amplifier (DO-CDTA). The features of the proposed configuration are that: magnitude of output signal can be controlled via the input bias currents; the proposed circuit is low temperature sensitive, the circuit description is very simple. The circuit performances are...
This article presents a current-mode universal biquadratic filter (low-pass, high-pass, band-pass functions), based on multiple-output current controlled current conveyor transconductance amplifiers (MO-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 simple, consisting of merely...
This article presents a dual-mode (voltage-mode and current-mode) universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on plus type dual-output current controlled current conveyor transconductance amplifier (CCCCTA). The features of the circuit are that: the quality factor and natural frequency can be tuned...
A circuit which can function both as quadrature oscillator and as a universal biquad filter (low-pass, high-pass, band-pass, band-reject and all-pass functions) is introduced in this paper. Working as quadrature oscillator, the oscillation condition and oscillation frequency can be adjusted independently with the input bias currents. Functioning as a universal biquad filter, the quality factor and...
This article presents a dual-mode (voltage-mode and current-mode) universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on dual-output second-generation current controlled current conveyor (DO-CCCII). The features of the circuit are that: the bandwidth and pole frequency can be tuned electronically via the input...
This article presents a dual-mode (voltage-mode and current-mode) universal biquadratic filter performing completely standard functions: low-pass, high-pass, band-pass, band-reject and all-pass functions, based on dual-output second-generation current controlled current conveyor (DO-CCCII). The features of the circuit are that: the bandwidth and natural frequency can be tuned electronically via the...
This article introduces a floating capacitance multiplier employing differential voltage current conveyor (DVCC) and second generation current controlled current conveyors (CCCIIs). The provided capacitor is a floating element synthesized from a grounded capacitor. Its outstanding feature is that the capacitive value can be electronically adjusted by input bias currents of the CCCIIs and is temperature-insensitive...
This article presents a basic current-mode building block for analog signal processing, namely current controlled current conveyor transconductance amplifier (CCCCTA). Its parasitic resistance at current input port can be controlled by an input bias current. It is very suitable to use in a current-mode signal processing, which is continually more popular than a voltage one. The proposed element is...
A novel circuit for realizing floating inductance, floating capacitance, floating frequency dependent negative resistance (FDNR) and grounded to floating admittance converter depending on the passive component selection is proposed in this paper. The proposed simulator employs second-generation current-controlled current conveyors (CCCIIs), differential voltage current conveyor (DVCC) and only grounded...
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