Abstract
ABSTRACTThis paper presents a new resistorless and electronic tunable third-order quadrature oscillator based on voltage difference transconductance amplifiers (VDTAs). The proposed configuration using two VDTAs and three grounded capacitors has three current outputs and two voltage outputs. The resistorless circuit enjoys electronically and independently control of oscillation condition and oscillation frequency. It can simultaneously provide two quadrature output voltages, two quadrature output currents, and one amplitude-controllable output current. All the current output terminals possess high-output impedance terminals. The active and passive sensitivities of the quadrature oscillator are low. The simulation and experimental results are included to validate the theoretical analysis.
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