Constant-Flux Inductors

Speaker: Han Cui
Affiliation: Virginia Tech


The “constant-flux inductors” are developed to achieve high magnetic-energy density, leading to significantly lower height than that of conventional products. Techniques to shape the core and to distribute the winding turns to shape a desirable field profile are described for the surface-mount inductors. A relatively constant flux distribution is advantageous not only from the density standpoint, but also from the thermal standpoint via the reduction of hot spots, and from the reliability standpoint via the suppression of flux crowding. Prototype cores and windings were routed from powder-iron disks and copper sheets, respectively. The design of constant-flux inductor was validated by the assembled inductor prototype.


Han Cui received the B.S. degree from Tianjin University, Tianjin, China, in 2011, and the M.S. degree from Virginia Tech, Blacksburg, VA, USA, in 2013, both in electrical engineering. She is currently working toward the Ph.D. degree at the Center for Power Electronics Systems, Virginia Tech. Her research interests include high-density magnetic components and high-frequency magnetic design.

For more information, contact Prof. Ethan Wang ()

Date(s) - Apr 21, 2017
1:00 pm - 2:30 pm

E-IV Maxwell Room #57-124
420 Westwood Plaza - 5th Flr. , Los Angeles CA 90095