OPTIMUM DESIGN OF A HIGH-POWER, HIGH-FREQUENCY TRANSFORMER

A procedure for optimum design of a high-power, high-frequency transfo rmer is presented, The procedure is based on both electrical and therm al processes in the transformer and identifies a) the VA-rating of fer rite cores in relation to the operating frequency, b) the optimum flux density in the core, and c) the optimum current densities of the wind ings providing maximum transformer efficiency. Since the transformer i s the major contributor to the volume and weight of the power supply, the results of transformer analysis can be used for entire power suppl y optimization as well, Two high-power, high-frequency transformers ar e optimally designed, built, and tested, Practical results show good a greement,vith the theory.