Emulation of an electrical-analogue of a fractional-order human respiratory mechanical impedance model using OTA topologies
作者： Costas Vastarouchas , Georgia Tsirimokou , Todd J. Freeborn , Costas Psychalinos
DOI: 10.1016/J.AEUE.2017.03.021
关键词: Transconductance 、 Inductor 、 Capacitor 、 Emulation 、 Integrator 、 Mechanical impedance 、 Engineering 、 Control theory 、 Differentiator 、 Operational transconductance amplifier
摘要: Abstract In this work, an electrical-analogue of a fractional-order mechanical impedance model used to represent the human respiratory system is emulated using approximated capacitors and inductors. These elements are realized differentiator/integrator blocks appropriately configured Operational Transconductance Amplifiers. The accuracy frequency-band have been increased compared previous emulation schemes by employing 3rd-order approximation s α in realization. Post-layout simulation results from 4 Hz 48 Hz confirm that has less than 5% error their theoretical frequency range.
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