Comparison of Different Inductor Designs based on Litz Wire, Foil and PCB based Windings for DC-DC Converter Operating into DCM Mode

PCIM Europe Digital Days 2021: International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management: Proceedings 2021
Kaspars Kroičs

Operation of a DC-DC converter into DCM mode allows reduce needed value of inductance. In that case the current does not have DC component and the losses in magnetic core and windings are increased, especially, if the switching frequency is high. Therefore, proper design of the inductor is important. The windings of the inductor can be made from multiple wires in parallel, Litz wire, foil, or integrated into PCB. In each case, magnetic component needs to be optimized regarding material and manufacturing cost and to reduce size and losses. In this paper, it is proposed inductor design, where the winding is integrated into the PCB, this inductor is compared with two other designs where Litz wire and foil windings are used. The measurement results of developed inductor are shown in the paper.

Keywords
Core and windings; DC components; Dc/dc converters; DCM mode; Inductor design; Litz wires; Multiple wires; PCB-based;
Hyperlink
https://ieeexplore.ieee.org/document/9472311

Kroičs, K. Comparison of Different Inductor Designs based on Litz Wire, Foil and PCB based Windings for DC-DC Converter Operating into DCM Mode. In: PCIM Europe Digital Days 2021: International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management: Proceedings, Germany, Nuremberg, 3-7 May, 2021. Berlin: VDE Verlag GmbH, 2021, pp.644-650. ISBN 978-3-8007-5515-8.

Publication language
English (en)