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Discussion on the physic of the Barkhausen criteria based on the second order differential equation
Author(s)
Wardkien, Paramote
Kittipute, Kunanon
Date Issued
March 1, 2019
Type
Conference Paper
Abstract
From past to present, the Barkhausen criteria has played important role for the electrical oscillator design. However, the physical meaning of the loop-gain value in the Barkhausen criteria for practical electrical oscillators is still unclear. In this paper, the Barkhausen criteria based on the second order differential equation has been described. The physical meaning of the closed-loop gain value less than 1, equal 1, greater than 1 a little bit, and greater than 1, are interpreted. Furthermore, the interpretation is confirmed by the result of the practical Weinbridge oscillator's experiment.
Citation
Ieecon 2019 7th International Electrical Engineering Congress Proceedings, 2019