Voltage-Mode and Current-Mode Resistorless Third-Order Quadrature Oscillator
AbstractThis paper presents the realization of a resistorless third-order quadrature oscillator using two multiple-output current controlled current conveyor transconductance amplifiers (MO-CCCCTAs) and three grounded capacitors. The proposed circuit provides two quadrature voltage outputs, two high-impedance quadrature current outputs, and one high-impedance amplitude-controllable current output. The proposed oscillator satisfies the industrial requirement for amplifier and modulation signals and phase shift keying signals, when the input bias current of the second MO-CCCCTA is used as a modulating signal. Its oscillation condition and oscillation frequency can be adjusted independently by two different bias currents of MO-CCCCTAs. The structure of resistorless and only grounded capacitors suggests that the proposed oscillator can be easily implemented in an integrated circuit. View Full-Text
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Chen, H.-P.; Hwang, Y.-S.; Ku, Y.-T. Voltage-Mode and Current-Mode Resistorless Third-Order Quadrature Oscillator. Appl. Sci. 2017, 7, 179.
Chen H-P, Hwang Y-S, Ku Y-T. Voltage-Mode and Current-Mode Resistorless Third-Order Quadrature Oscillator. Applied Sciences. 2017; 7(2):179.Chicago/Turabian Style
Chen, Hua-Pin; Hwang, Yuh-Shyan; Ku, Yi-Tsen. 2017. "Voltage-Mode and Current-Mode Resistorless Third-Order Quadrature Oscillator." Appl. Sci. 7, no. 2: 179.