Title :
The minimization of magnetic stray fields from toroids with air gaps
Author :
Albach, Manfred ; Stadler, Alexander
Author_Institution :
Erlangen-Nurnberg Univ., Erlangen, Germany
Abstract :
The external magnetic stray field is investigated in gapped toroids with a rectangular cross section. An analytical method is used in which the field distribution is calculated by means of orthogonal expansion. Further, the influence of various parameters, such as winding position and air gap size, on the radiated magnetic field is discussed and, based on the results, basic rules are given that need to be followed when designing reduced stray field configurations.
Keywords :
electromagnetic compatibility; magnetic devices; magnetic fields; minimisation; switched mode power supplies; EMC; SMPS; air gap toroids; field distribution; orthogonal expansion; radiated magnetic field; rectangular cross section toroids; stray magnetic field minimization; switch mode power supplies; winding position; Air gaps; Ferrites; Frequency; Inductors; Magnetic cores; Magnetic materials; Power electronics; Saturation magnetization; Switches; Toroidal magnetic fields;
Conference_Titel :
Electromagnetic Compatibility, 2004. EMC 2004. 2004 InternationalSymposium on
Print_ISBN :
0-7803-8443-1
DOI :
10.1109/ISEMC.2004.1349941
