This paper introduces closed formulas of two topologies of fractional-order relaxation oscillators. One of these topologies is based on Operational Amplifier (Op-Amp) and the other one depends on Operational Operational Trans-Resistance Amplifier (OTRA). Special cases for each topology are also provided. The advantage of these designs comes from the added extra degree of freedom presented by the fractional-order ?. Matsuda’s approximation of s? is used to implement fractional-order capacitors. Also, experimental work is included to verify the theoretical results. © 2018 IEEE.
Elwy O., Said L.A., Madian A.H., Radwan A.G.
Approximation; Fractional-Order Capadtor; Matsuda; Relaxation oscillator; square wave generator
Proceedings of the International Conference on Microelectronics, ICM, Vol. 2018-December, Art. No. 8703988, PP. 212 to 215, Doi: 10.1109/ICM.2018.8703988