Journal
IEEE TRANSACTIONS ON MAGNETICS
Volume 50, Issue 12, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMAG.2014.2337836
Keywords
Electromagnetic analysis; frequency-dependent resistance; passive components; printed circuit board (PCB) inductor
Funding
- Spanish MICINN under University Professor Formation (FPU) [AP2010-4446, CSD2009-0046]
- DGA-FSE
- Bosch
- Siemens Home Applieances Group
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Printed circuit board (PCB) windings are convenient for many applications given their ease of manufacture, high repeatability, and low profile. In many cases, the use of multistranded litz wires is appropriate due to the rated power, frequency range, and efficiency constraints. This paper proposes a manufacturing technique and a semianalytical loss model for PCB windings using planar litz structure to obtain a similar ac loss reduction to that of conventional windings of round wires with litz structure. Different coil prototypes have been tested in several configurations to validate the proposal.
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