Minimum component SRCO and VFO using a single DVCCC
Analog Integrated Circuits and Signal Processing
WSEAS Transactions on Circuits and Systems
Analog Integrated Circuits and Signal Processing
Sinusoidal oscillators with explicit current output employing current-feedback op-amps
International Journal of Circuit Theory and Applications
Generation of current conveyor based oscillators using nodal admittance matrix expansion
Analog Integrated Circuits and Signal Processing
Analog Integrated Circuits and Signal Processing
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This paper reports realizations of current-mode quadrature sinusoidal oscillator using only two multiple-output current conveyors (first or second generation current conveyor CCI/CCII) and four passive components including two grounded capacitors. Therefore, the circuits employ minimum number of passive components to realize a second-order sinusoidal oscillator. Three types of circuits are reported depending on the condition of oscillation and frequency of oscillation (FO). The circuits have FO controllable by either resistor or capacitor and are suitable to be used as variable frequency oscillator for different applications. All the circuits provide two explicit quadrature current outputs from high output impedance terminals. PSPICE simulation results are included to verify the workability of the proposed circuits.