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This paper includes calculation of the AC resistance of litz wire in a wide frequency range for an optimal strand diameter by two methods and compared. Calculations of AC resistance for these methods are carried out by using mathematical software SCILAB. Analysis of skin effect is carried out with FEMM. Effect of pitch on AC resistance is analyzed. The results for AC resistance, skin effect and analysis...
This work aims for the design of printed spiral coils (PSC) with high quality factors. This consists in minimizing coil losses represented by proximity and eddy currents losses. For this purpose, specific geometric parameters characterizing spiral coils are shown to have a direct impact on increasing such losses. As a result, to minimize proximity effect, high ratios between the interspace separating...
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