Version history
About version 11.4· Some bugs was fixed, including bugs with one-layer coil calculation.· Added support of Portuguese (translation by Artur Soares).About version 11.3· Some bugs was...

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Toroidal coil without a magnetic core are used very rarely. The magnetic field of a coil is almost completely centered inside of the toroid, with this kind...

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Single-layer inductor is a wire rolled into a helix. For adding stiffness the wire is usually wound on a cylindrical pipe named coil-former. Therefore the initial parameters...

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Calculation of the single layer RF coil with an arbitrary winding pitch.
For the calculation of the single-layer inductors can be used Maxwell's model, then each turn represents...

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Ferrite cores for inductors have a wide variety species. W-shaped, U-shaped, pot cores of various modifications. Such cores are also used with the powder iron materials. Calculation...

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The plugin screen. Calculate influence of shield on the inductance value.
Shielded coil inductances most often used at high frequencies to guard the inductor from external electromagnetic fields....

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Plugin meandr_PCB
Inductor on PCB as a meander structure.
In addition to coils on PCB in the form of a square or circular spirals also there is in the...

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Flat PCB coils are most often used in the VHF and UHF bands to reduce the size of the device. Usually they are produced with round, square...

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Single circular loop inductor
Inductance realized in the form of a single circular loop, in other words in the form of a single turn, most often used in...

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Multi-layer coil on a PCB is needed for those designers who want to create a miniature device with the use of inductance sufficiently high value. Single-layer coil...

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Agreement on the dimensions and notations
Different programs (or different versions of this software) are using different methods of measurement and notation of coil sizes. In order to...

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LC circuit calculation
In "LC circuit" sheet the Coil32 computes the values of capacitance, inductance and frequency for resonant oscillatory circuit. The calculation is made by the Thomson's...

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Inductor with non circular winding
Quite often, the inductor is wound on a coil-former having a square or polygonal shape. Such inductor can be represented as an equivalent...

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How to calculate inductance?
We can use different methods to calculate the inductance using numerical methods or handbook formulas. They can be conditionally divided into three levels -...

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Toroidal coils on ferrite ring or rings of carbonyl iron powder is widely used in amateur radio designs. Their advantage is the high combined inductance with small...

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Ferrite rod core inductance.
Calculation of the ferrite rod core coil is enough difficult. The inductance depends on the parameters of the rod, coil sizes, and their mutual...

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Most often in different soft and online calculators the multilayer inductor is calculated by a simple empirical formula H.А. Wheeler:
L - inductance (µH)
N - number of turns
R...

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Plugin multiloop calculates the coil in the form of a round multiturn wiring bundle with round cross-section. Such coils are often used as induction sensors for metal...

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Plugin square_loop - calculation of a rectangular loop inductance.
{jcomments on}
The inductive element in the form of a rectangular loop large size is quite often used as induction...

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Faced with difficulties in the calculation of the multi-layer coil on a solenoidal former, we have abandoned the simple empirical Wheeler's formula and went by the way...

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