Current and Voltage Mode Quadrature Oscillator Based on Voltage Differencing Buffered Amplifier | Zendy

Abdullah Yeşil | Zendy; Fırat Kaçar | Zendy

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Current and Voltage Mode Quadrature Oscillator Based on Voltage Differencing Buffered Amplifier

Author(s) -

Abdullah Yeşil,

Fırat Kaçar

Publication year - 2018

Publication title -

istanbul university - journal of electrical and electronics engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.136

H-Index - 11

ISSN - 1303-0914

DOI - 10.5152/iujeee.2018.1802

Subject(s) - resistor , capacitor , operational amplifier , voltage , electrical engineering , amplifier , spice , electronic engineering , quadrature (astronomy) , multivibrator , computer science , physics , engineering , cmos

In this work, we present a current-mode and voltage-mode quadrature oscillator circuit using a voltage differencing buffered amplifier (VDBA), two grounded capacitors, and a grounded resistor. The oscillation condition and frequency are orthogonally (or independently) controllable. The current-mode and voltage-mode quadrature signals can be simultaneously obtained from the proposed circuit. The use of only grounded capacitors and resistors makes the proposed circuits ideal for integrated circuit implementation. The quadrature oscillator is simulated with SPICE simulation program using 0.35-µm technology parameters.

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