Title :
Comparison of different techniques to realise PFC boost inductor
Author :
Leonavicius, Vytenis ; Duffy, Maeve ; Mathuna, Cian Ó ; Boeke, Ulrich
Author_Institution :
PEI Technol., Ireland
Abstract :
Three techniques are compared for producing a PFC boost inductor operating in discontinuous conduction mode. In this application, fringing fields associated with high frequency current pulses cause problems of winding loss in the vicinity of an air-gap. For this reason, a planar inductor in which a lumped gap is replaced by a distributed air-gap material is described and investigated. The design is compared with a lumped air-gap planar design, and with a wire-wound design. Winding and core loss models presented are verified with measurements on prototype devices
Keywords :
air gaps; inductors; losses; magnetic cores; power factor correction; switching circuits; windings; PFC boost inductor; air-gap; core loss models; discontinuous conduction mode; distributed air-gap material; fringing fields; high frequency current pulses; lumped air-gap planar design; lumped gap; planar inductor; winding loss; winding models; wire-wound design; Air gaps; Circuits; Core loss; Ferrites; Frequency; Inductors; Loss measurement; Magnetic flux; Magnetic materials; Zero voltage switching;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2002. APEC 2002. Seventeenth Annual IEEE
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-7404-5
DOI :
10.1109/APEC.2002.989394
