Magnetic Application
Example |
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Modelling
of the proximity-effect
A major difficulty in designing high-frequency inductors is to properly account for the influence of eddy current effects in windings. These phenomena include skin- and proximity-effect losses. Skin-effect losses can be taken into account by a simple 'back-of-the-envelop' calculation. However, proximity-effect losses are much more difficult to compute. This is because the reel and wire geometries, as well as the wire layout, have a large impact on the proximity-effect losses. It is therefore necessary to apply numerical methods that incorporate geometrical details into the solution scheme. |