![]() Units typically used are (mW/cm 3 ) for PL, Tesla (T) for B pk, and (kHz) for f. Where a, b, c are constants determined from curve fitting, and B pk is defined as half of the AC flux swing: It can be approximated from core loss charts or the curve fit loss equation: Core loss density (PL) is a function of half of the AC flux swing (½ B=B pk ) and frequency ( f ). To compare core performance of all five Magnetics powder core materials, download our Curve Fit Equation tool or view our list of Powder Core Calculations.Ĭore loss is generated by the changing magnetic flux field within a material, since no magnetic materials exhibit perfectly efficient magnetic response. ![]() The article below provides a step-by-step method to calculate losses generated by powder cores under certain conditions.
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June 2023
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