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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...
A current-mode quadrature oscillator using single current differencing transconductance amplifier (CDTA), 1 resistor and 2 grounded capacitors is presented. The proposed oscillator can provide 2 sinusoidal output currents with 90° phase difference. The oscillation condition and oscillation frequency can be controlled electronically by adjusting the bias current of the CDTA. High output impedances...
A new electronically tunable current-mode quadrature oscillator with voltage and current outputs using operational transconductance amplifiers (OTAs) is presented. The proposed oscillator is consisted of two OTAs, two grounded capacitors and one grounded resistor. The oscillation condition and the oscillation frequency are independently controllable. The oscillation frequency can be controlled by...
A new electronically tunable current-mode high-Q bandpass filter employing second-generation current controlled conveyor (CCCII)-based first-order all-pass filters is presented. The proposed filter uses only three CCCIIs, one current-controlled resistor and two grounded capacitors. The center frequency (??c) and the quality factor (Q) can be independently adjusted through the bias current of the CCCII...
This paper introduces a novel current-mode biquadratic circuit using only plus type differential voltage current-controlled current conveyors (DVCCCs) and grounded capacitors. The biquadratic circuit is constructed with two plus type dual current output DVCCCs (DO-DVCCCs) and two grounded capacitors. The circuit can realize biquadratic circuit transfer functions by choosing the appropriate input and...
A new current-mode quadrature oscillator using two translinear current conveyors and two grounded capacitors is presented. The proposed circuit provides two high output impedance current sources with 900 phase difference. The oscillation frequency can be controlled electronically by adjustting the bias currents of translinear current conveyors. The proposed circuit employs only grounded capacitors...
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