An Electronically Controllable Fractional Multivibrator

Abstract

In this study, a fractional capacitor order of α-based new fractional multivibrator topology is proposed. The new proposed circuit consists of a multioutput current follower transconductance amplifier (MO-CFTA) and a grounded fractional capacitor. The proposed topology offers electronically and independently control of output waveform amplitude, trigger levels, and oscillation period via relevant bias currents. The proposed circuit provides higher oscillation frequency in comparison with normal multivibrator. The proposed circuit is simulated via SPICE and 0.18 µm TSMC technology parameters. Furthermore, the introduced concepts are also verified experimentally.

KEYWORDS:

• Circuit theory
• fractional calculus
• fractional capacitor
• fractional multivibrator
• fractional oscillators
• wave generators

ORCID

İbrahim Ethem Saçu http://orcid.org/0000-0002-8627-8278

Additional information

Notes on contributors

İbrahim Ethem Saçu

İbrahim Ethem Saçu was born in Kayseri, Turkey. He received the B.Sc. and M.Sc. degrees in Electrical & Electronics Engineering from the Erciyes University in 2010 and 2012, respectively. Since 2012, he has been a Ph.D. student in Institute of Natural and Applied Sciences, Electrical & Electronics Engineering, Kayseri, Turkey. His current research interests include fractional-order circuits, fractional-order filters and analog signal processing.

Mustafa Alçı

Mustafa Alçı was born in Kayseri, Turkey. He graduated at the Electronic Dept. of the Technology Faculty, Gazi University, Ankara, in 1979. Then he received the B.Sc. degree from Erciyes University, Kayseri, in 1983, M.Sc. degree from the Middle East Technical University, Ankara, in 1986 and Ph.D. degree from Erciyes University, Kayseri, in 1989, respectively, all in Electrical & Electronics Engineering. Since 1979, he is a member of academic staff with Erciyes University Engineering Faculty, Electronic Engineering Dept., Kayseri, Turkey. His current research interests include image processing, noise and coding artifacts suppression, fuzzy systems, medical electronics, chaotic systems, and circuit design. Email: [email protected]