### Welcome to the "Magnetic Design Tool"

The Magnetic Design Tool provides access to the digitized material data for all current TDK Electronics ferrite materials and allows application-related parameters to be calculated and represented on graphs, hysteresis loop, power loss, initial permeability, amplitude permeability and complex permeability.

#### Material properties

Depending on the selected material, the software can display the following graphs:• hysteresis loop

• power loss vs. frequency, flux density, temperature and the performance factor

• initial permeability vs. temperature

• amplitude permeability vs. flux density or field strength

• complex permeability vs. frequency in serial and parallel representation

#### Core calculations

Depending on the selected material and core form, the software offers the following functions:• overview of data,

• calculation of AL-value in dependence of the air gap (or vice versa)

• representation of effective permeability over temperature,

• determination of transferable power Ptrans

• calculation of third harmonic distortion under circuit conditions

• calculation of appropriate air gap, Al value and the number of turns for a given permeability drop p [%] , representing the curve of inductance or permeability vs. DCbias

• display of ratio of the AC to DC-resistance vs. frequency.