Simple two operational transconductance amplifiers‐based electronically controllable bilinear two port for fractional‐order synthesis | Zendy

Sotner R. | Zendy; Polak L. | Zendy; Jerabek J. | Zendy; Petrzela J. | Zendy

Open Access

Simple two operational transconductance amplifiers‐based electronically controllable bilinear two port for fractional‐order synthesis

Author(s) -

Sotner R.,

Polak L.,

Jerabek J.,

Petrzela J.

Publication year - 2018

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2018.5575

Subject(s) - transconductance , simple (philosophy) , port (circuit theory) , operational transconductance amplifier , amplifier , bilinear interpolation , electronic engineering , operational amplifier , computer science , electrical engineering , engineering , cmos , transistor , voltage , philosophy , epistemology , computer vision

This Letter introduces a new circuit topology of the simple electronically controllable voltage‐mode bilinear two port (BTP) employing two operational transconductance amplifiers. The proposed two‐port circuit is completely resistorless and contains only a grounded capacitor. It has a high‐impedance input (a simple cascading of sections is possible) and allows an independent electronic adjusting of zero and pole frequency of the transfer function. The operation of the BTP circuit is demonstrated for two different locations of the pole and zero frequency coordinates. Moreover, a direct application of four BTPs in fractional‐order integrators (order −0.11 and −0.33) with phase shifts −10° and −30° is shown. Design specification is verified by experimental measurements.

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