Inductor design for common-mode and differential mode inductors

dc.contributor.advisorWang, Shuo
dc.contributor.authorChen, Taiwei
dc.contributor.committeeMemberQian, Chunjiang
dc.contributor.committeeMemberKrishnaswami, Hariharan
dc.descriptionThis item is available only to currently enrolled UTSA students, faculty or staff. To download, navigate to Log In in the top right-hand corner of this screen, then select Log in with my UTSA ID.
dc.description.abstractPower Electronics device often generates magnificent noise, which includes differential-mode (DM) and common-mode (CM) noise. An electromagnetic interference (EMI) filter is often required to meet the electromagnetic compatibility standards. Generally speaking, EMI filter contains two parts: a DM filter and a CM filter [1]. The common-mode inductor (or choke) is part of the CM filter; while the differential-mode inductor (or choke) is part of the DM filter. The research topic proposes winding structures which can be used to improve EMI performance. Chapter 2 states the toroid inductor design considerations and the design flow chart which is also shown in this section. Chapter 3 focuses on winding structures of CM and DM inductors. The theory of the induced voltage cancellation is introduced in this portion. The distribution of magnetic flux is demonstrated as well. Chapter 4 shows the simulated via ANSYS Maxwell. This chapter helps validate the previous design theory. Chapter 5 provides a series of measurement results. They are CM and DM impedance measurement, near field coupling induced voltage measurement, and near magnetic field measurement. Conclusion explains the advantage of the proposed technique.
dc.description.departmentElectrical and Computer Engineering
dc.format.extent77 pages
dc.subjectcancel out
dc.subjectCommon-mode inductor
dc.subjectDifferential-mode inductor
dc.subjectDM current excitation
dc.subjectmagnetic flux
dc.subject.classificationElectrical engineering
dc.titleInductor design for common-mode and differential mode inductors
dcterms.accessRightspq_closed and Computer Engineering of Texas at San Antonio of Science


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