Title :
Optimum design of a high-power, high-frequency transformer
Author_Institution :
Swichtec Power Syst., Christchurch, New Zealand
fDate :
1/1/1996 12:00:00 AM
Abstract :
A 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 power transformer and identifies: (a) the VA-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. Since the transformer is the major contributor to the volume and weight of the power supply, the results of transformer analysis can be used for entire power supply optimization as well. Two high-power, high-frequency transformers are optimally designed, built, and tested. Practical results show good agreement with the theory
Keywords :
current density; design engineering; high-frequency transformers; magnetic cores; magnetic flux; optimisation; power transformers; transformer cores; transformer windings; HF power transformer; VA-rating; current density; design optimisation; electrical and thermal processes; ferrite cores; maximum transformer efficiency; operating frequency; optimum flux density; power supplies; thermal processes; windings; Circuit faults; Conductors; Core loss; Curve fitting; Ferrites; Frequency; Switched-mode power supply; Temperature; Transformer cores; Wire;
Journal_Title :
Power Electronics, IEEE Transactions on
