NDLI: Synthetic design of the transformer in flyback switching AC-DC converters

Content Provider	IEEE Xplore Digital Library
Author	Ge Chen Jiaxin Chen Youguang Guo Jianguo Zhu
Copyright Year	2008
Description	Author affiliation: Minist. of Educ. Sponsored Res. Center of Adv. Textile Machinery, Donghua Univ., Shanghai (Ge Chen; Jiaxin Chen) \|\| Sch. of Electr., Mech. & Mechatron. Syst., Univ. of Technol., Sydney, NSW (Youguang Guo; Jianguo Zhu)
Abstract	This paper presents the synthetic design of the transformer in flyback switching AC-DC converters. Firstly, the maximal power transferred by a standard size magnetic core such as EE-20 or EE-25 is theoretically determined. To obtain accurate analysis, a method based on the nonlinear finite element analysis (FEA) of electromagnetic field is employed. Secondly, from the view of reducing the maximal magnetic flux density in the transformer with the same power, it is proved that the discontinuous conducting mode has more advantages than the continuous conducting mode. Several rules for designing the transformer are presented. As an example, the transformer of an existing converter is re-designed by using the proposed approach. With a nonlinear 2-D FEA field-circuit coupled switching detailed model built in Matlab/Simulink surrounding, the performance of the new converter is obtained.
Starting Page	1871
Ending Page	1874
File Size	444457
Page Count	4
File Format	PDF
ISBN	9781424438266
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	IEEE Consumer Electronics Society(CES)
Subject Keyword	AC-DC power converters Electromagnetic analysis Magnetic analysis Magnetic cores Finite element methods Electromagnetic fields Magnetic flux density Couplings Mathematical model Switching converters
Content Type	Text
Resource Type	Article

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