Title :
Proximity effects in coils for high frequency power applications
Author :
Lotfi, Ashraf W. ; Gradzki, Pawel M. ; Lee, Fred C.
Author_Institution :
Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
9/1/1992 12:00:00 AM
Abstract :
The increase in AC resistance over the simple skin effect is studied in short coil windings and twisted wires. The effect of conductor spacing is examined showing increases in AC resistance in excess of 100%. The effectiveness of stranded and/or twisted wire to both self and proximity fields is developed. These models are used to predict the experimentally measured AC resistance of coils
Keywords :
coils; magnetic leakage; skin effect; transformer windings; 1D model; 40 kHz to 4 MHz; AC resistance; coils; conductor spacing; high frequency power applications; proximity fields; short coil windings; skin effect; twisted wires; Coils; Conductivity; Conductors; Current density; Electrical resistance measurement; Frequency; Power electronics; Proximity effect; Skin effect; Wire;
Journal_Title :
Magnetics, IEEE Transactions on
