Title :
Optimum air gap for various magnetic materials in cores of coils subject to superposed direct current
Author_Institution :
Bell Telephone Laboratories, Inc., New York, N. Y.
Abstract :
A method is developed for calculating optimum air gap and core size for choke coils whose windings must carry direct current in addition to alternating current. It is employed with data on typical magnetic materials to give curves from which design dimensions can be obtained readily to fulfill specified requirements for inductance, resistance, and d-c burden.
Keywords :
Coils; Equations; Inductance; Magnetic cores; Mathematical model; Resistance; Windings;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1945.6441303
