Open AccessThe Frequency Dependence of Resistance in Foil‐Wound Inductors
Author(s) -
Paul Murgatroyd,
N.J. Walker
Publication year - 1978
Publication title -
active and passive electronic components
Language(s) - English
Resource type - Journals
eISSN - 1026-7034
pISSN - 0882-7516
DOI - 10.1155/apec.5.219
Subject(s) - foil method , frequency dependence , materials science , inductor , composite material , electrical engineering , engineering , physics , nuclear magnetic resonance , voltage
Foil wound air-cored inductors are widely used in power electronics applications, and often exhibit power dissipation much greater than can be accounted for by the d.c. resistance. This is shown to be due to non-uniform current flow. A scaling rule, relating the effects to turns and frequency, is demonstrated. The general principle of equal current sharing can be satisfied in a toroidal system.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom