In Reply to: RE: Interesting the 1st comment posted by jkeny on July 17, 2015 at 01:48:05:
"Yes but the gotcha in all of this is that ethernet transformers do not provide isolation from RF noise - the most likely cause of audible issues when it gets into audio equipment."
Of course they limit energy transfer and filter frequencies in all bands. It's not like these Ethernet transformers are no impedance. They'll have a response tuned to Ethernet frequencies which is likely to be somewhat hot in the RF bands (as compared to 60Hz for example) but due to tiny cores and coil wire gauges are severely crippled in their ability to transmit appreciable power even in the bands they are tuned for. This is not even to mention the core losses, leakage inductance coupling energy to god knows where, I^2*R losses etc.
Ethernet transformers are just not a very effective power conversion device and when properly used can filter noise significantly.
Though, it is correct to say they are imperfect.
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Follow Ups
- RE: Interesting the 1st comment - Ugly 07:19:52 07/22/15 (4)
- RE: Interesting the 1st comment - jkeny 07:27:22 07/22/15 (3)
- RE: Interesting the 1st comment - Ugly 09:57:15 07/22/15 (2)
- RE: Interesting the 1st comment - jkeny 10:24:53 07/22/15 (1)
- RE: Interesting the 1st comment - Ugly 14:19:14 07/22/15 (0)