Frequency-dependent resistance in Litz-wire planar windings for all-metal domestic induction heating appliances

摘要

In this paper the frequency-dependent resistance in Litz-wires planar windings for all-metal domestic induction heating appliances is analyzed. For planar inductors, where size is not an essential constraint, an analytical model is developed based on the superposition of different loss effects in the wire, several inductors were constructed and results with both nonloaded and loaded inductors are compared with theoretical predictions.