Title :
Optimum Air Gap for Various Magnetic Materials in Cores of Coils Subject to Superposed Direct Current
Author_Institution :
Apparatus development department, 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 :
Air gaps; Coils; Equations; Inductance; Inductors; Inorganic materials; Magnetic analysis; Magnetic cores; Magnetic materials; Permeability;
Journal_Title :
American Institute of Electrical Engineers, Transactions of the
DOI :
10.1109/T-AIEE.1945.5059026
