ELECTRICA

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

1.

Department of Naval Architecture and Marine Engineering, Bandırma Onyedi Eylül University Maritime Faculty, Balıkesir, Turkey

2.

Department of Electrical and Electronics Engineering, İstanbul University School of Engineering, İstanbul, Turkey

ELECTRICA 2018; 18: 6-12
DOI: 10.5152/iujeee.2018.1802
Read: 362 Downloads: 111 Published: 23 February 2018

In this work, we presenta current-mode and voltage-mode quadrature oscillator circuit using a voltagedifferencing buffered amplifier (VDBA), two grounded capacitors, and a groundedresistor. The oscillation condition and frequency are orthogonally (orindependently) controllable. The current-mode and voltage-mode quadraturesignals can be simultaneously obtained from the proposed circuit. The use ofonly grounded capacitors and resistors makes the proposed circuits ideal forintegrated circuit implementation. The quadrature oscillator is simulated withSPICE simulation program using 0.35-µm technology parameters. 

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