文档介绍：IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 11, NO. 1, JANUARY 1996 33
Optimum Design of a High-Power,
High-Frequency Transformer
R. Petkov
Abstract-A procedure for optimum design of a high-power, There are several curve fitting fit formulae used for the
high-frequency transformer is Presented- The Procedure is based approximation of core loss [4], [6], [ 101, [ 121, [ 151, [ 171-[ 191,
on both electrical and thermal processes in the transformer and and [251 either from the physical or geometrical
identifies a) the VA-rating of ferrite cores in relation to the
interpretation of data sheet curves. The main criterion for the fit
operating frequency, ,,) the optimum flux density in the core,
and c) the optimum current densities of the windings providing formula choice should be the approximation accuracy. In terms
maximum transformer efficiency. Since the transformer is the of that, the geometrical interpretation is more preferable, since
major contributor to the volume and weight of the Power Supply, the physical model, usually based on several simplifications,
the results of transformer analysis can be used for entire power is not enough. The bination between the
supply optimization as well. Two high-power, high-frequency
transformers are optimally designed, built, and tested. Practical accuracy and to have the expression used
results show g