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EMI Noise Reduction Techniques for High Frequency Power ...

EMI Noise Reduction Techniques for High Frequency Power Converters Yuchen Yang Dissertation submitted to the Faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical Engineering APPROED Fred C. Lee (Chair) Qiang Li Jaime De La Ree Virgilio Centeno Steve C. Southward April 16th, 2018 Blacksburg, Virginia Keywords: Wide-band-gap devices, high Frequency , EMI, Magnetic integration 2018, Yuchen Yang EMI Noise Reduction Techniques for High Frequency Power Converters Yuchen Yang Abstract Switch mode Power supplies are widely used in different applications.

inductor is integrate into PCB winding for the first time. Furthermore, balance technique is applied to reduce CM noise for PFC converter. With PCB winding, the balance technique has better high frequency performance. The PCB winding inductor can achieve high power density, high efficiency and automated manufacture.

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