Analysis of High Frequency Planar Sandwich Transformers for Switching Converters
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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.
IEEE Transactions on Magnetics
6, PART 2
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