New Resistorless Current-Mode Quadrature Oscillators Using 2 CCCDTAs and Grounded Capacitors
نویسندگان
چکیده
The current-mode quadrature oscillators using 2 current controlled current differencing transconductance amplifiers (CCCDTAs) and 2 grounded capacitors are presented. The proposed oscillators can provide 2 sinusoidal output currents with 90o phase difference. The oscillation condition and oscillation frequency can be electronically/independently controlled by adjusting the bias current of the CCCDTA. High output impedances of the configuration enable the circuit to drive the external load without additional current buffers. The use of only grounded capacitors is ideal for integration. The PSpice simulation results are depicted. The given results agree well with the theoretical anticipation.
منابع مشابه
Current-mode resistorless sinusoidal oscillators and a dual-phase square-wave generator using current-controlled current-differencing transconductance amplifiers and grounded capacitors
In this paper, two new designs for current-mode (CM) resistorless sinusoidal oscillators based on current-controlled current-differencing transconductance amplifiers (CCCDTAs) are presented. Each of the proposed oscillators employs a single CCCDTA along with two grounded capacitors, and the oscillation condition and frequency can be orthogonally controlled using the bias currents of the CCCDTA....
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