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Questions tagged [litz-wire]

Anything related to litz wire, i.e. a specially fabricated wire that suffer less than normal wire from skin effect and proximity effect, which increase the effective resistance of a wire when the frequency of the current increases. Therefore litz wire is used often in the construction of inductors and transformers for high frequency applications.

Anything related to litz wire, i.e. a specially fabricated wire that suffer less than normal wire from skin effect and proximity effect, which increase the effective resistance of a wire when the frequency of the current increases. Therefore litz wire is used often in the construction of inductors and transformers for high frequency applications.

See also Wikipedia on litz wire.

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Why isn't there a non-conducting core wire for high-frequency coil applications

Background The commonly known skin effect formulas are derived and only apply to solid conductors. The commonly used "skin depth" only applies in these cases. It is for this reason that in some applications tubes are used, as these are much more…
Edgar Brown
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Why is the Litz Wire twisted?

I understand that dividing a wire into multiple insulated pieces reduce the Eddy Currents, and that reduces the magnetic field inside the wire, which leads to increased skin depth. But why do they twist these insulated sub-wires? What is the…
hkBattousai
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Would using litz wire for an inductor change the inductance compared to regular wire?

Litz wire is multistranded wire where each strand is insulated from the others along the wire's length, but they are connected together on each end. This is useful primarily to reduce the skin effect, so that more high frequency current can be…
Adam Davis
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AC resistance of an inductor?

I measured the AC resistance of my customized inductor with a network analyzer of core E70. I got 23 mΩ AC resistance and 2.3 mΩ DCR for a 14 μH inductor with 8 turns using Litz wire (1400) with a 4.3 mm diameter. I also got 30 mΩ AC resistance and…
Manjesh Gowda
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Interleaving in litz wire transformer - to be or not to be?

i am designing a transformer for 2-switch forward converter. For now, primary is wound as 5 wires of 0,5mm diameter (34 turns, 3 layers), the secondary is wound as 3 wires of 1,32mm diameter (17 turns, 2 layers). The frequency of smps is 83khz. The…
silkyre6xtenz
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Is there a simple method to estimate the copper loss of Litz wire?

I would like to know if it is possible to estimate the loss of Litz wire by using a simple equation. For a planar transformer, I can estimate the DC loss by calculating the resistance at low frequency. How can I do that with Litz wire?
Magnetic778
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Profiled litz wire manufacture

How is profiled Litz wire manufactured? Is it winded in the shape, or a round one passes thought conforming process?
Diego C Nascimento
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Parameters of a Litz wire

What do these numbers tell about the Litz wire parameters?
Boruto
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How do I strip litz wire?

I bought a choke made of litz wire. The wire is enameled all the way to the ends. How does one go about stripping this wire?
Stephen Collings
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How can I calculate Litz wire strands?

How can I calculate Litz wire strands? I am trying to calculate the Litz wire strands for a LLC ferrite transformer design. IRMS = 2.4 A J = 4 A/mm2 For these values: A = 0.6 mm2 D = 0.9 mm operating frequency 50 - 100 kHz If I use 0.1 mm Litz…
Venkatesh
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