Two operating modes have been identified for a matrix inductor/transformer made by weaving conductors through the holes perforated in a flat magnetic plate. The Mode-1 perforated-plate matrix transformer (M1PPMT) is analyzed to assess its suitability for low-profile power converters. Analysis and finite-element simulation suggest that this type of transformer may be approximated as a collection of weakly coupled "toroidal" cores. Thus, it is possible to derive closed-form expressions relating typical performance parameters, such as magnetizing inductance and losses, to the hole radius, identified as a meaningful design parameter. High peak flux density around the holes appears to be a problem. Nevertheless, it is possible to design a 100 W M1PPMT with acceptable magnetizing inductance, efficiency, and power density.<>
Perforated-plate magnetics. I. Mode-1 inductor/transformer
IEEE Transactions on Aerospace and Electronic Systems ; 31 , 3 ; 968-976
1995-07-01
775919 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Perforated-Plate Magnetics. Part II: Mode-2 Inductor Transformer
Online Contents | 1995
|Perforated-Plate Magnetics. Part I: Mode-1 Inductor Transformer
Online Contents | 1995
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