Title :
Design issues of the high-power high-frequency transformer
Author_Institution :
Teesside Univh., Middlesbrough, UK
Abstract :
A completed procedure for optimum design of a high power, high frequency transformer is presented. The procedure is based on both electrical and thermal processes in the transformer and determines: (a) the power rating of ferrite cores in relation to the operating frequency, (b) the optimum flux density in the core and (c) the optimum current densities of the windings providing maximum transformer efficiency. Its analytical results can be used not only for the transformer optimisation but for the entire power supply optimisation as well. Two high power, high frequency transformers are optimally designed, built and tested. The practical results show good agreement with the theory
Keywords :
current density; ferrites; high-frequency transformers; losses; magnetic cores; magnetic flux; optimisation; switched mode power supplies; transformer cores; transformer windings; electrical processes; ferrite cores; high-frequency transformer; high-power; maximum transformer efficiency; operating frequency; optimum current densities; optimum design; optimum flux density; power rating; power supply optimisation; thermal processes; transformer optimisation; windings; Copper; Core loss; Current density; Filling; Frequency; Magnetic analysis; Magnetic flux; Magnetic hysteresis; Switched-mode power supply; Transformer cores;
Conference_Titel :
Power Electronics and Drive Systems, 1995., Proceedings of 1995 International Conference on
Print_ISBN :
0-7803-2423-4
DOI :
10.1109/PEDS.1995.404888
