Thank you for this simple but effective demonstration. I had been studying skin effect for coils I am making, but was puzzled why litz wire was specified with a much smaller area wires for a frequency than the skin area alone would suggest. I believe this must be due to minimizing the proximity effect.
I did not know that proximity effect is so evil. That would explain, why some inductors perform so poorly even though the wire is smaller than the skin depth. Thank you!
When the coils are close, the magentic field of each individual wrap has an affect on many neighboring individual wraps. When the coil is spread, the magetic field only affects the closest neighbors. See inductive choking.
Does anyone know if the Skin Effect and the Proximity Effect have any impact on the transmission of audio signals through wires in a home audio system, such as with audio cables that connect speakers to amplifiers or receivers, or with HDMI cables that connect various devices within the home audio system? If so, what would this impact be and is it one that someone would need to be concerned about?
this is a good question. I think the skin effect and proximity effects affect the area of the wire that can carry a current, which in principle does not depend on current. However, in reality, higher current means that there will be more heat generated, and so the temperature of the wire will increase, and resistance is temperature-dependent (usually higher resistance with higher temperature)
![The Proximity Effect | How It Works & How To Avoid It [With Audio Examples]](http://i.ytimg.com/vi/fCl9wfILSxY/mqdefault.jpg)
Really good explanation. Cannot get any better!
Thanks for creating this vid; the explanations are very intuitive and easy to follow :) .
Nicely explained. The illustrations were very helpful!
That's a really good explanation. Thank you!
Great Video , looking forward for more insightful videos.
Thank you for this simple but effective demonstration.
I had been studying skin effect for coils I am making, but was puzzled why litz wire was specified with a much smaller area wires for a frequency than the skin area alone would suggest. I believe this must be due to minimizing the proximity effect.
Thank you for the comment. I think litz wire needs to account for the proximity effect as well, so they are thinner
Excellent explanation. Thank you very much.
Interesting work!
I did not know that proximity effect is so evil. That would explain, why some inductors perform so poorly even though the wire is smaller than the skin depth. Thank you!
Great video
Thanks
When the coils are close, the magentic field of each individual wrap has an affect on many neighboring individual wraps. When the coil is spread, the magetic field only affects the closest neighbors. See inductive choking.
amazing thx u!
🙏🙏🌹🌹
There is a really good paper on Encylcopedia Magnetica / Proximity loss
10/10
Does anyone know if the Skin Effect and the Proximity Effect have any impact on the transmission of audio signals through wires in a home audio system, such as with audio cables that connect speakers to amplifiers or receivers, or with HDMI cables that connect various devices within the home audio system? If so, what would this impact be and is it one that someone would need to be concerned about?
No
Is AC resistance (skin or proximity effect) increased with higher currents ?
this is a good question. I think the skin effect and proximity effects affect the area of the wire that can carry a current, which in principle does not depend on current. However, in reality, higher current means that there will be more heat generated, and so the temperature of the wire will increase, and resistance is temperature-dependent (usually higher resistance with higher temperature)
At higher frequency that your graph is showing the skin is more important.
at 3:49 what is D in equation of R_AC?
Thank you for the question. D is the diameter of the wire
@@denisywyu7864 thank you sir