These are indicated by the suffix “e” added to the symbol. The dimensional parameters of that substitute toroid. The method used Coil64 is recommended for the calculation of the dimensional parameters of E cores and is in accordance with IEC Publication 205, “ Calculation of Effective Parameters of Magnetic Piece Parts.” For this method of calculating the dimensional parameters of E cores, the E core set is substituted by an ideal toroidal core such that a coil wound on that toroid would give exactly the same electrical performance as a coil with same number of turns placed on the E core set. In this case, you can calculate such a coil if you know the physical dimensions of the core and its magnetic permeability. However, not all manufacturers publish A L values for their cores. The parameter A L can be found in the manufacturer specifications for each species of core. A L - inductance factor of the core (nH/turns square).Calculation of the coils with any ferromagnetic core uses method calculation with a special parameter A L - inductance factor of the core. Such cores are also used with the powder iron materials. E-shaped, U-shaped, pot cores of various modifications. Multilayer air core inductor on a rectangular formįerrite cores for inductors have a wide variety species.Self-capacitance of single-layer inductor.Features of calculation of power supply chokes.
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