Title :
High-frequency eddy-current effects in low-profile transformer windings
Author :
Dai, Ning ; Lee, Fred C.
Author_Institution :
Celestica Power Syst., Endicott, NY, USA
Abstract :
A study of several configurations used to construct low-profile transformers is presented. Finite-element analysis is used to analyze the behavior of transformer current at high frequency and determine an appropriate winding configuration with low AC-resistance and leakage inductance. It is demonstrated that the foil structure is the most attractive winding configuration for low-profile transformer applications. As a result, a transformer with a height of 6 mm and a power density of 650 W/in3 was built
Keywords :
eddy currents; electric resistance; finite element analysis; high-frequency transformers; inductance; transformer windings; 6 mm; finite-element analysis; foil structure; high frequency; high-frequency eddy-current effects; low AC-resistance; low leakage inductance; low-profile transformer windings; power density; transformer current; winding configuration; Aircraft; Ferrites; Frequency; Inductance; Inductors; Leg; Packaging; Power supplies; Solids; Windings;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616789
