Physical Realizable Circuit Structure For Adaptive Frequency Hopf Oscillator

Ahmadi, Arash, Mangieri, Eduardo, Maharatna, Koushik and Zwolinski, Mark (2009) Physical Realizable Circuit Structure For Adaptive Frequency Hopf Oscillator At NEWCAS-TAISA'09, France. 28 Jun - 01 Jul 2009.


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This paper presents a novel structure for the adaptive frequency Hopf oscillator where the nonlinear function is modified to make the system realizable using analog circuit components. A mathematical model is derived and it is shown using VHDL-AMS model that despite using a new nonlinear function, the oscillator exhibits the same characteristics as the original. Our simulation results show the same learning behavior with improved learning time. Subsequently, an equivalent circuit model and transistor level implementation for the oscillator is suggested and the mathematical model is confirmed with system and circuit level simulations.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Event Dates: 28 June-1July 2009
Venue - Dates: NEWCAS-TAISA'09, France, 2009-06-28 - 2009-07-01
Keywords: Nonlinear Oscillators, Hopf bifurcation, Analog signal processing, Frequency adaptation, Locomotion system, Frequency detection
Organisations: Electronic & Software Systems, EEE
ePrint ID: 267350
Date :
Date Event
28 June 2009Published
Date Deposited: 08 May 2009 14:27
Last Modified: 17 Apr 2017 18:49
Further Information:Google Scholar

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