Title :
Analysis of high frequency planar sandwich transformers for switching converters
Author :
Lu, Jun W. ; Dawson, Francis P. ; Yamada, Sotoshi
Author_Institution :
Sch. of Microelectron. Eng., Griffith Univ., Brisbane, Qld., Australia
fDate :
11/1/1995 12:00:00 AM
Abstract :
This paper presents the results of investigations on a planar sandwich air-gapped transformer with two different winding configurations. Experimental results of the coil self inductances, voltage ratio versus frequency, and the numerical results for the magnetic flux and eddy-current distributions are presented. It is shown that the voltage ratio and turns ratio are not equivalent and that the voltage ratio is frequency dependent
Keywords :
DC transformers; eddy currents; high-frequency transformers; inductance; magnetic flux; potential transformers; transformer windings; coil self inductances; eddy-current distributions; high frequency planar sandwich transformers; magnetic flux; planar sandwich air-gapped transformer; switching converters; turns ratio; voltage ratio; winding configurations; Coils; Ferrites; Frequency conversion; Inductance; Magnetic cores; Magnetic flux; Magnetic materials; Spirals; Switching converters; Transformers;
Journal_Title :
Magnetics, IEEE Transactions on
