The complex magnetic permeability data of common ferrite materials taken from the adapted official Fair Rite tables. In this case, the calculation of the inductance value and other parameters of the coil does not make sense. ![]() If the reactance of the coil becomes negative, then the coil is operating above the self-resonant frequency. However, such an inductor can be used as a choke while keeping a high impedance modulus. With large losses in the ferrite, with a low Q-factor of the coil, its use in resonant circuits does not make sense. This calculator allows you to calculate the impedance of a coil equivalent circuit, taking into account its self-capacitance. This dependence is displayed by graphs or tables of complex magnetic permeability, in which the real part determines the magnetic properties of the ferrite, and the imaginary part determines the losses. ![]() The characteristics of ferrite are highly dependent on frequency. You have to switch on JavaScript in your browser to work the calculator on this page!Īt high frequencies, a real inductor is usually modeled as the LRC circuit shown in the figure. Ferrite core inductor at radio frequencyįind true inductance of a ferrite toroid core inductor at the radio frequency.Multilayer air core inductor on a rectangular form.Self-capacitance of single-layer inductor.Features of calculation of power supply chokes. ![]() How to calculate single layer LC-circuit coil in Coil64?.
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