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Published in:
2012 | OriginalPaper | Chapter
Initialization of HB Oscillator Analysis from Transient Data
Authors : Mikko Hulkkonen, Mikko Honkala, Jarmo Virtanen, Martti Valtonen
Published in: Scientific Computing in Electrical Engineering SCEE 2010
Publisher: Springer Berlin Heidelberg
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Oscillation frequency and amplitude of a free-running oscillator are commonly solved with harmonic balance (HB) method using an oscillator probe. This usually requires optimization. Poor initial values of oscillation may lead to unsuccessful optimization or will at least require a great number of optimization cycles. Therefore, two methods to initialize HB oscillator analysis from transient data are presented. These methods improve the initial estimates of oscillator frequency and amplitude. In addition, techniques to improve convergence of the analysis by initializing HB voltages from transient data and using an oscillator probe pulse are discussed. The efficiency of the methods is examined and verified through numerical experiments.