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Research on Rejection of Transformer Shield to Common-Mode Conducted EMI in Switching Mode Power Supply

Liang Wang

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Abstract

A model to explain the generation of common-mode conductive EMI in transformer of SMPS and method to design shield in transformer were given,taking fly-back as model.Experiments verified that the shield could reduce the common-mode EMI.It could be inferred the model and method could be used in other topologies.

About this research paper

What this paper is about

A model to explain the generation of common-mode conductive EMI in transformer of SMPS and method to design shield in transformer were given,taking fly-back as model.Experiments verified that the shield could reduce the common-mode EMI.It could be inferred the model and method could be used in other topologies.

Why it matters

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Key contribution

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Method / approach

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Available abstract

A model to explain the generation of common-mode conductive EMI in transformer of SMPS and method to design shield in transformer were given,taking fly-back as model.Experiments verified that the shield could reduce the common-mode EMI.It could be inferred the model and method could be used in other topologies.

Key concepts: EMI, Transformer, Common-mode signal, Engineering, Shield, Electrical engineering, Electromagnetic interference, Electronic engineering

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