Title

Gaussian Waves In The Fitzhugh-Nagumo Equation Demonstrate One Role Of The Auxiliary Function H(X,T) In The Homotopy Analysis Method

Keywords

DC-DC power conversion; generalized analysis; resonant converter

Abstract

With the advantage of achieving zero voltage switching for a wide input voltage range, the LLC resonant topology has become increasingly popular for use in high power density and high-efficiency power converter applications. However, when the LLC converter is applied to wide input voltage range applications, the widely used fundamental harmonic approximation is incapable of guiding the design due to its inaccuracy. Thus an accurate LLC converter model is desired. In this paper, a generalized mode analysis is presented that provides highly accurate prediction on resonant current and voltage behavior and dc gain characteristic. Also, because operation modes are affected by load, frequency, and gain conditions, the boundaries and distribution of modes are discussed and illustrated. Based on the mode analysis, an approximation method is developed to estimate the peak gain point, which is useful in LLC design. This approximation demonstrates high accuracy within the simulation results. An experimental prototype is built to verify the analysis. © 2011 IEEE.

Publication Date

3-1-2012

Publication Title

Communications in Nonlinear Science and Numerical Simulation

Volume

17

Issue

4

Number of Pages

1233-1240

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.cnsns.2011.07.036

Socpus ID

80053386149 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/80053386149

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